CRANE SMSA2812D/KR

Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Features
Small size, 1.075 inches (27.31 mm) square
• Operating temperature -55° to +125°C
• Qualified to MIL-PRF-38534 Class H and K
• Radiation hardness assurance (RHA)
to level R 100 kRad(Si)
• Input voltage range 16 to 40 VDC
• Transient protection 50 V for 120 ms
models
• Fully Isolated, magnetic feedback
VDC Output
• Fixed high frequency switching
single
3.3
5
5.2
12
15
• Inhibit function
• Indefinite short circuit protection
• High power density, 76% efficiency
description
The SMSA Series™ of high frequency DC/DC converters offers a
new standard of performance for low power, space qualified DC/
DC converters. SMSA converters provide up to 5 watts output
power over the full military temperature range of -55°C to +125°C
with up to 76% efficiency. Thick-film hybrid techniques provide
military/aerospace reliability levels and optimum miniaturization.
The hermetically sealed case is only 1.075 by 1.075 inches —
with a height of only 0.270 inches. Power density for the SMSA
Series converters is 16 watts per cubic inch. The SMSA Series’
small size, light weight, and hermetically sealed metal packages
make them ideal for use in space, military, aerospace and other
high reliability applications.
Screening
SMSA converters offer the following screening options: Space
Prototype (O), Class H, or Class K. Radiation tolerant to
Radiation Hardness Assurance (RHA) levels of “-” (O), “P” or
“R”, per MIL-STD-38534. Interpoint model numbers use an “O” in
the RHA designator position to indicate the “-” (dash) Radiation
Hardness Assurance level of MIL-PRF-38534, which is defined
as “no RHA”. See “Class H and K, QML Screening” tables for
more information.
Converter Design
The SMSA converters are switching regulators that use a flyback
converter design with a constant switching frequency of 500 kHz.
They are regulated, isolated units using a pulse width modulated
topology and built as high reliability thick-film hybrids. Isolation
between input and output circuits is provided with a transformer
in the forward power loop and an optical link in the feedback
control loop. Excellent input line transient response and audio
rejection is achieved by an advanced feed-forward compensation
technique.
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • power@crane-eg.com
www.interpoint.com
dual
±5
±12
±15
Negative output regulation is maintained by tightly coupled
magnetics. Predictable current limit is accomplished by direct
monitoring of the output load current, which results in a constant
current output above the overload point. Internal input and output
filters eliminate the need for external capacitors.
Wide Voltage Range
The SMSA converters are designed to provide full power opera­
tion over the full 16 to 40 VDC voltage range. An undervoltage
lockout feature keeps the converter shutdown below approximately 13 VDC to ensure smooth initialization.
Improved Dynamic Response
The SMSA feed-forward compensation system ­provides excellent
dynamic response and noise rejection. Audio rejection is typically
50 dB. The minimum to maximum step line transient response is
typically less than 1%.
Inhibit Function
SMSA converters provide an inhibit feature that can be used to
disable internal switching and inhibit the unit’s output. Inhibiting in
this manner results in low standby current, and no generation of
switching noise.
The converter is inhibited when the active low (≤0.8V) is applied
to the inhibit pin. The unit is enabled when the pin, which is
internally connected to a pull-up resistor, is left unconnected or
is connected to an open collector gate. The open circuit output
voltage associated with the inhibit pin is 9 to 11 VDC. In the
inhibit mode, a maximum of 4 mA must be sunk from the inhibit
pin at 28 VDC input.
Page 1 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Operating Conditions and
characteristics
Inhibit
•Active low (output disabled)
--Active low voltage ≤0.8 V max
--Inhibit pin current 4 mA max
--Referenced to input common
•Active high (output enabled)
--Open collector
--Open pin voltage, 9 - 11 Volts
Input Voltage Range
•16 to 40 VDC continuous
•50 V for up to 50 msec transient
Output Power
•5 watts
Lead Soldering Temperature (10 sec per lead)
•300°C
Storage Temperature Range (Case)
•-65°C to +135°C
mechanical and environmental
Size (maximum)
•1.075 x 1.075 x 0.270 inches (27.31 x 27.31 x 6.86 mm)
•See case C1 for dimensions.
Case Operating Temperature (Tc)
•-55°C to +125°C full power
•-55°C to +135°C absolute
Derating Output Power/Current (Tc)
•Linearly from 100% at 125°C to 0% at 135°C
Output Voltage Temperature Coefficient
•100 ppm/°C typical
Input to Output Capacitance
•50 pF typical
Isolation
•100 megohm minimum at 500 VDC
•Any pin to case, except case pin
•Audio Rejection
•50 dB typical
Weight (maximum)
•15 grams typical
Screening
Space Prototype (O), Class H, or Class K are radiation tolerant to
Radiation Hardness Assurance (RHA) levels of “-” (O) or “R”, per
MIL-STD-38534. Interpoint model numbers use an “O” in the RHA
designator position to indicate the “-” (dash) Radiation Hardness
Assurance level of MIL-PRF-38534, which is defined as “no RHA”.
See “Class H and K, MIL-PRF-38534 Screening” tables for more
information. Available configurations: OO, HP, KP, HR, KR
Conversion Frequency
•500 kHz typical
•450 kHz min, 600 kHz max
SMSA SINGLE AND DUAL
Positive 6
Input
Input Filter
Output Filter
Error
Amp
Inhibit 5
PWM
Control
Input 7
Common
Case 8
Ground
Output Filter
Feedback
= DUAL OUTPUT
Figure 1: SMSA Block Diagram
www.interpoint.com
Page 2 of 14
Rev F - 20090318 - Pending Revision F Release
1 Positive
Output
VRef
2
Output
Common
3
Negative
Output
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
PIN OUT
PinSingle OutputDual Output
1
Positive Output
Positive Output
2Output CommonOutput Common
3No connectionNegative Output
4No connectionNo connection
5InhibitInhibit
6
Positive Input
Positive Input 7Input CommonInput Common
8
Case Ground
Case Ground
Squared corner on header and dot
on top of cover indicate pin one.
1
2
3
4
5
BOTTOM VIEW
SMSA
8
7
6
See case C1 for dimensions.
Figure 2: Pin Out Bottom View
www.interpoint.com
Page 3 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
SMSA
Positive
6
Input
12 k V
5kV
Inhibit
5
400 V
50 k V
200 pF
10 K
3.9 K
2N3904
Vcc
Typically 1.5 V
when inhibited
10 k V
7
Input
Common
Figure 3: Inhibit Interface
SMSA2815S
EMI Filter
From input
power source
Positive
Input
Input
Common
Positive
Output
Case
Positive
Input
T1
Positive
Output
C2
Output Common
+
C3 To Load
Input
Common
Output
Common
Case
T1
C1
Figure 4: Low Noise Output Filter for SMSA Single Output Model
emi Filter
From input
power source
Positive
input
input
Common
Positive
output
output
Common
smsa2815d
Case
Positive
input
T1
Positive
output
C2
output Common
input
Common
C4
negative
output
Case
C1
+
C3
To loads
+
C5
T1
Figure 5: Low Noise Output Filter for SMSA Dual Output Model
The filter suggestions in Figures 4 and 5 will further reduce the output ripple for systems requiring very low output noise.
C1 = 0.27 µF ceramic capacitor, 500V
C2 = C4 = 6.8 µF tantalum capacitor
C3 = C5 = 0.27 µF ceramic capacitor
Single output: T1 = 15T #28 AWG winding on toroid, µi = 5000
Dual output: T2 = 10T #28 AWG winding on toroid, µi = 5000
For best results, make interconnections as short as possible.
www.interpoint.com
Page 4 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
model numbering key
Base Model
SMSA
smd numbers
28 05 S / K R
Voltage In (28V)
Output Voltage
Number of Outputs
(S = single, D = dual)
Environmental Screening
Standard Micro-circuit
Drawing (SMD)
SMSA Series
Similar Part
SMSA283R3S/KR
SMSA2805S/KR
SMSA285R2S/KR
SMSA2812S/KR
SMSA2815S/KR
SMSA2812D/KR
SMSA2815D/KR
5962R0621001Kxc
5962R9309202Kxc
in process
5962R9309302Kxc
5962R9309402Kxc
5962R9308902Kxc
5962R9309002Kxc
The SMD number shown is for Class H screening and no Radiation
Hardness Assurance (RHA) level. See the SMD for the numbers for other
screening and radiation levels. For exact specifications for an SMD
product, refer to the SMD drawing. Call your Interpoint representative for
status on the SMSA SMD releases which are “in process.” SMDs can be
downloaded from:
http://www.dscc.dla.mil/programs/smcr
Radiation Hardness
Assurance (RHA)
Model Selection
SMSA28
Base model
Vout value
number of outputs
/
screening
RHA
Choose one from each of the following rows
Vout value
Number of outputs
Screening
Radiation hardness assurance (RHA)
for singles: 3R3, 5, 5R2, 12, 15 for duals: 5, 12, 15
“R” = decimal point, 3R3 = 3.3VDC
S (single) or D (dual)
O* - Space prototype, H, K
O* - Space prototype, P, R
*Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash)
Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA”
www.interpoint.com
Page 5 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
single output models
PARAMETER
smsa283R3s
smsa2805S
smsa285R2s
MIN TYP MAX
MIN TYP MAX
MIN TYP MAX
CONDITIONS
OUTPUT VOLTAGE
TC = -55°C TO +125°C
3.25
OUTPUT CURRENT
TC = -55°C TO +125°C
Vin = 16 to 40 VDC
0
OUTPUT POWER
TC = -55°C TO +125°C
Vin = 16 to 40 VDC
—
—
4
—
—
5
—
600
—
150
450
OUTPUT RIPPLE
3.30
—
3.35 4.95
1200
0
5.00
—
5.05 5.15
1000
UNITS
5.20
5.25
VDC
—
462
mA
—
5
W
—
150
450
0
10 kHz - 2 MHz
—
300
LINE REGULATION
VIN = 16 TO 40 VDC
TC = -55°C TO +125°C
—
10
50 —
10
50 —
10
50
LOAD REGULATION
NO LOAD TO FULL
TC = -55°C TO +125°C
—
10
50 —
10
50 —
10
50
INPUT VOLTAGE
CONTINUOUS
NO LOAD TO FULL
TC = -55°C TO +125°C
16
28
40 16
28
40 16
28
40
VDC
TRANSIENT1 50 ms
0
—
50
—
50
—
50
V
NO LOAD
—
35
60 —
35
60 —
35
60
FULL LOAD
—
250
—
250
—
250
—
INPUT CURRENT
INPUT RIPPLE
CURRENT2
INHIBITED
—
10 kHz - 10 MHz
TC = -55°C TO +125°C
—
—
EFFICIENCY
LOAD FAULT1, 2
STEP LOAD
RESPONSE
STEP LINE
RESPONSE1, 3
START-UP3
3
50
60
—
5
—
200
300
—
—
3
50
60
0
—
5
—
200
300
—
—
mV
mA
5
200
300
mA p-p
—
—
68
74
SHORT CIRCUIT
POWER DISSIPATION
—
1.5
2.4
—
1.5
RECOVERY
—
12.5
12.5
25
ms
50% - 100% - 50%
TRANSIENT
—
200
500
—
200
500
—
200
500
mV pk
RECOVERY1, 3
—
200
500
—
200
500
—
200
500
µs
TRANSIENT
16 - 40 VDC
40 - 16 VDC
—
—
200
200
500
500
—
—
200
200
500
500
—
—
200
200
500
500
mV pk
RECOVERY
16 - 40 VDC
40 - 16 VDC
—
—
400
400
—
1000
1000 —
400
1000 —
400
1000
400
1000 —
400
1000
DELAY
—
10
75 —
10
75 —
10
75
OVERSHOOT1
25 —
— 68
3
50
60
mV
60
Notes
1. Guaranteed by design, not tested.
2.Indefinite short circuit protection not guaranteed above 125°C
(case).
www.interpoint.com
0
mV p-p
2.0
12.5
—
25 —
74
—
%
1.5
2.0
W
µs
ms
3.Recovery time is measured from application of the transient to
point at which VOUT is within 1% of VOUT at final value.
Page 6 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
single output models
smsa2812s
smsa2815s
CONDITIONS
MIN TYP MAX
MIN TYP MAX
OUTPUT VOLTAGE
TC = -55°C TO +125°C
11.88 12.00 12.12
14.85 15.00 15.15
OUTPUT CURRENT
TC = -55°C TO +125°C
Vin = 16 to 40 VDC
—
OUTPUT POWER
TC = -55°C TO +125°C
Vin = 16 to 40 VDC
—
—
5
—
500
PARAMETER
OUTPUT RIPPLE
417 —
—
VDC
333
mA
—
5
W
—
150
600
10 kHz - 2 MHz
—
125
LINE REGULATION
VIN = 16 TO 40 VDC
TC = -55°C TO +125°C
—
10
50 —
10
50
LOAD REGULATION
NO LOAD TO FULL
TC = -55°C TO +125°C
—
10
50 —
10
50
INPUT VOLTAGE
CONTINUOUS
NO LOAD TO FULL
TC = -55°C TO +125°C
16
28
40
16
28
40
VDC
TRANSIENT1 50 ms
0
—
50
0
—
50
V
NO LOAD
—
35
60 —
35
60
FULL LOAD
—
235
— —
235
—
INPUT CURRENT
INPUT RIPPLE
CURRENT
INHIBITED
—
10 kHz - 10 MHz
TC = -55°C TO +125°C
—
—
EFFICIENCY
LOAD FAULT1, 2
STEP LOAD
RESPONSE
STEP LINE
RESPONSE1, 3
START-UP3
3
50
60
69
74
SHORT CIRCUIT
POWER DISSIPATION
—
1.2
RECOVERY
—
50% - 100% - 50%
TRANSIENT
—
RECOVERY1, 3
—
TRANSIENT
16 - 40 VDC
40 - 16 VDC
RECOVERY
16 - 40 VDC
40 - 16 VDC
DELAY
OVERSHOOT1
Notes
1. Guaranteed by design, not tested.
2.Indefinite short circuit protection not guaranteed above 125°C
(case).
www.interpoint.com
—
UNITS
5
—
200 —
300 —
— —
3
50
60
mV p-p
mV
mV
mA
5
200
300
mA p-p
74
—
%
1.2
1.8
W
1.9
—
1
10
—
1
10
300
750
—
400
1000
mV pk
400
1000
—
400
1000
µs
—
—
200
250
800
600
—
—
200
250
500
500
mV pk
—
700
1300
—
500
1300
—
700
1300
—
500
1300
—
10
75 —
10
75
—
0
500 —
0
500
ms
µs
ms
mV pk
3.Recovery time is measured from application of the transient to
point at which Vout is within 1% of Vout at final value.
Page 7 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
dual output models
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT2
OUTPUT POWER2
OUTPUT RIPPLE
CONDITIONS
+ VOUT
smsa2805D
smsa2812D
smsa2815D
MIN TYP MAX
MIN TYP MAX
MIN TYP MAX
4.95
5.00
- VOUT
TC = -55°C TO +125°C
Vin = 16 to 40 VDC
4.9
5.0
—
±500
TC = -55°C TO +125°C
Vin = 16 to 40 VDC
—
—
10 kHz - 2 MHz
5.05 11.88 12.00 12.12
5.1
11.76 12.00 12.24
800 —
5
—
UNITS
14.85 15.00 15.15
14.70 15.00 15.30
±208
333
—
±167
267
mA
—
5
—
—
5
W
—
—
300
—
80
300 —
120
300
LINE REGULATION
VIN = 16 TO 40 VDC
TC = -55°C TO +125°C
+ VOUT
—
20
100
—
20
100 —
10
50
40
200
—
40
200 —
40
180
NO LOAD TO FULL
TC = -55°C TO +125°C
- VOUT
—
LOAD REGULATION
+ VOUT
—
10
120
—
10
120 —
10
50
- VOUT
100
400
—
50
200
6
—
3
6
CROSS REGULATION3
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE
CURRENT
STEP LOAD
RESPONSE
STEP LINE
RESPONSE1, 5
100
400
—
—
5
8
—
16
28
40 16
28
40
16
28
40
VDC
TRANSIENT1 50 ms
—
—
50
—
50
—
—
50
V
NO LOAD
—
30
50 —
40
63 —
38
60
FULL LOAD
—
248
—
235
— —
235
—
CONTINUOUS
NO LOAD TO FULL
INHIBITED
—
10 kHz - 10 MHz
TC = -55°C TO +125°C
—
—
SHORT CIRCUIT
POWER DISSIPATION
3
50
60
65
70
—
1.3
RECOVERY
—
—
50% - 100% - 50% TRANSIENT
—
±200
—
200
—
—
±200
±200
—
300
—
RECOVERY1, 5
TRANSIENT
16 - 40 VDC
40 - 16 VDC
DELAY
OVERSHOOT1
Notes
1.Guaranteed but not tested.
2.Up to 4 watts (80% of full power) is available from either output providing the opposite output is carrying 20% of total power.
3.Shows regulation effect on the minus output during the defined cross loading conditions, with 80% and 20% referring to the total output power of the converter. See
Figures 15 and 16.
www.interpoint.com
mV
—
RECOVERY
16 - 40 VDC
40 - 16 VDC
START-UP
mV p-p
+PO = 30–70%, -PO = 70–30%
-PO = 30–70%, +PO = 70–30%
EFFICIENCY
LOAD FAULT1, 4
VDC
3.7
—
—
5
—
200
300
—
—
3
50
60
— 67
2.1
—
50
—
73
1.3
—
— 68
1.7
—
3
50
60
mA
5
200
300
mA p-p
73
—
%
1.3
1.6
W
30
—
±200
±550
—
±200
±600
mV pk
—
200
500
—
200
500
µs
±500 —
±500 —
±200
±200
±500
±500
—
—
±600
±600
±1500
±1500
—
300
750
—
500
1200
800
2000 —
800
2000
—
500
1200
—
10
30 —
10
30 —
10
25
—
0
±550 —
500
750
1
5
200 —
300 —
%
500 —
0
500 —
1
0
30
500
ms
mV pk
µs
ms
mV pk
4.Indefinite short circuit ­protection not guaranteed above 125°C (case).
5.Recovery time is measured from application of the transient to point at which Vout
is within 1% of Vout at final value.
Page 8 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
80
80
50
40
60
70
EFFICIENCY (%)
28V
40V
30
16V
70
EFFICIENCY (%)
EFFICIENCY (%)
70
60
80
16V
16V
28V
40V
50
40
1
2
3
4
5
30
6
OUTPUT POWER (Watts)
60
40V
50
40
1
2
3
4
5
30
6
OUTPUT POWER (Watts)
SMSA2805S EFFICIENCY
1
2
3
4
5
6
OUTPUT POWER (Watts)
SMSA2812S EFFICIENCY
Figure 6
28V
SMSA2815S EFFICIENCY
Figure 7
Figure 8
80
10
40V
28V
50
20
40
50
60
70
80
40
90
30
1
2
3
4
5
6
VIN
30
100
0.1
1
10
100
VOUT
100µs/div
16V TO 40V
FREQUENCY (kHz)
OUTPUT POWER (Watts)
SMSA SERIES AUDIO REJECTION
SMSA2815D EFFICIENCY
SMSA2805S STEP LINE RESPONSE
Figure 11
Figure 10
Figure 9
100% to 10%
VIN
50% to 100%
100µs/div
50% 100%
10% to 100%
100µs/div
10% 100%
SMSA2805S STEP LOAD RESPONSE
SMSA2805S STEP LOAD RESPONSE
Figure 12
Figure 13
www.interpoint.com
Page 9 of 14
Rev F - 20090318 - Pending Revision F Release
1V/div.
50mV/div.
50mV/div.
100% to 50%
20V/div.
60
20mV/div.
ATTENUATION (dB)
EFFICIENCY (%)
20V/div.
16V
70
VOUT
1 ms / div
SMSA2805S TURN-ON INTO NO LOAD
Figure 14
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
50% to 10%
–POUT=2.5W
+VOUT
–POUT=0.5W
90% to 10%
200mV/div.
VIN
100mV/div.
100mV/div.
20V/div.
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
–VOUT
10% to 90%
10% to 50%
200µs/div
16V TO 40V
SMSA2815D INPUT STEP LINE RESPONSE
200µs/div
10%
90%
100µs/div
10%
50%)
SMSA2815D +VO STEP LOAD RESPONSE
Figure 15
SMSA2815D +VO STEP LOAD RESPONSE
Figure 17
Figure 16
VIN
5V/div.
+VOUT
–VOUT
6
4
SMSA2815D TURN-ON INTO NO LOAD
2812D
2
0
2815D
–2
–4
–6
–8
–10
500µs/div
5
8
–VOUT VOLTAGE CHANGE (%)
–VOUT VOLTAGE CHANGE (%)
20V/div.
10
90/10
70/30
50/50
30/70
10/90
OUTPUT LOAD (+VOUT % / –VOUT %)
90–10% LOAD on +V, 10-90% LOAD on –V
SMSA DUAL CROSS REGULATION
Figure 18
Figure 19
16
15
2812S
14
13
2815D
16
15
14
13
2812D
2815S
12
1
2
3
4
5
OUTPUT POWER (Watts)
50 mV DROP
6
SMSA LOW LINE DROPOUT VS. LOAD
Figure 21
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12
1
2
3
4
2812D
2
COND A
1
0
2815D
–1
COND B
–2
–3
2812D
–4
–5
10
20
30
40
5
6
OUTPUT POWER (Watts)
50 mV DROP
SMSA LOW LINE DROPOUT VS. LOAD
Figure 22
Page 10 of 14
Rev F - 20090318 - Pending Revision F Release
50
OUTPUT LOAD (%)
COND. A: 50% LOAD +V; 10% to 50% –V
COND. B: 50% LOAD –V; 10% to 50% +V
SMSA DUAL CROSS REGULATION
Figure 20
17
2805S
INPUT VOLTAGE (Volts)
INPUT VOLTAGE (Volts)
17
4
3
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converter Cases
28 Volt input – 5 Watt - Pending Revision F Release
BOTTOM VIEW CASE C1
Projection Weld
Seam Seal
Squared corner and dot on
top of case indicate pin one.
1.075 max. (27.31)
0.932 (23.67)
1
2
3
4
5
0.025
(0.64)
dia.
0.025
(0.64)
dia.
8
0.132 (3.35)
7
6
0.932 (23.67)
1.075 max. (27.31)
Seal hole: 0.070 ±0.005 (1.78 ±0.13)
0.732 (18.59)
0.532 (13.51)
0.332 (8.43)
0.132 (3.35)
0.000
0.205 ±0.010
(5.21 ±0.25)
0.000
0.270 max.
(6.86)
0.000
0.205 ±0.010
(5.21 ±0.25)
0.270 max.
(6.86)
0.000
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin
Materials
Header
Cold Rolled Steel/Nickel/Gold
Cover
Cold Rolled Steel/Nickel
Pins
Copper/Nickel/Gold compression glass seal
Case C1, Rev C, 20060116
Please refer to the numerical dimensions for accuracy. All information is believed to be accurate,
but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make
changes in products or specifications without notice.
Copyright © 1999-2006 Interpoint Corp. All rights reserved.
Figure 23: Case C1
www.interpoint.com
Page 11 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Class H and K, MIL-PRF-38534 Element Evaluation
Component-Level Test
Performed
Space Prototype (O)
non-QML1
Class H
QML
Class K
QML
M/S2
P3
M/S2
P3
M/S2
P3
Element Electrical
yes
no
yes
yes
yes
yes
Element Visual
yes
yes
no
no
yes
yes
Internal Visual
no
N/A
yes
N/A
yes
N/A
Temperature Cycling
no
no
no
no
yes
yes
Constant Acceleration
no
no
no
no
yes
yes
Interim Electrical
no
N/A
no
N/A
yes
N/A
Burn-in
no
N/A
no
N/A
yes
N/A
Post Burn-in Electrical
no
N/A
no
N/A
yes
N/A
Steady State Life
no
N/A
no
N/A
yes
N/A
Voltage Conditioning Aging
N/A
no
N/A
no
N/A
yes
Visual Inspection
no
no
N/A
no
N/A
yes
Final Electrical
no
no
yes
yes
yes
yes
Wire Bond Evaluation4
yes
yes
yes
yes
no
no
SEM
no
N/A
no
N/A
yes
N/A
SLAM™/C-SAM:
Input capacitors only
(Add’l test, not req. by H or K)
no
no
no
yes
no
yes
Notes:
1. Non-QML products do not meet all of the requirements of MIL-PRF-38534.
2. M/S = Active components (Microcircuit and Semiconductor Die)
3. P = Passive components
4. Not applicable to EMI filters that have no wirebonds.
Definitions:
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
SLAM™: Scanning Laser Acoustic Microscopy
C-SAM: C - Mode Scanning Acoustic Microscopy
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Page 12 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Class H and K, MIL-PRF-38534 Environmental Screening
Space Prototype (O)
non-QML1
Class H
QML
Class K
QML
Non-destruct bond pull2
Method 2023
no
yes3
yes
Pre-cap Inspection
Method 2017, 2032
yes
yes
yes
Temperature Cycle (10 times)
Method 1010, Cond. C, -65°C to 150°C, ambient
yes
yes
yes
Constant Acceleration
Method 2001, 3000 g
yes
yes
yes
PIND Test
Method 2020, Cond. A
no
yes3
yes
Pre burn-in test
yes
yes
yes
Burn-in
Method 1015, 125°C case, typical
96 hours
160 hours
2 x 160 hours (includes mid-BI test)
yes
no
no
no
yes
no
no
no
yes
Final Electrical Test MIL-PRF-38534
Group A, Subgroups 1 through 6
-55°C, +25°C, +125°C case
yes
yes
yes
Radiography
Method 2012
N/A
N/A
yes
Post Radiography Electrical Test
Room temperature
N/A
N/A
yes3
Hermeticity Test
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
yes
yes
yes
yes
yes
yes
Final visual inspection
Method 2009
yes
yes
yes
End Item-Level Test
Performed
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Notes:
1. Space Prototype (O), non-QML products, do not meet all of the requirements of MIL-PRF-38534.
2. Not applicable to EMI filters that have no wirebonds.
3. Not required by DSCC but performed to assure product quality.
www.interpoint.com
Page 13 of 14
Rev F - 20090318 - Pending Revision F Release
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC/DC Converters
28 Volt input – 5 Watt - Pending Revision F Release
Class H and K, MIL-PRF-38534 Radiation Assurance
ENVIRONMENTAL SCREENING LEVELS
SPACE
PROTOTYPE (O)
non-QML2
CLASS H
CLASS K
QML
QML
OO
HO
N/A
P3: Radiation tolerant–Tested lots up to 30 K
Rads (Si) total dose
SEU guarantee up to 40 MeV
N/A
HP
KP
R3: Radiation tolerant–Tested lots up to 100 K
Rads (Si) total dose
SEU guarantee up to 40 MeV
N/A
HR
KR
RADIATION HARDNESS
ASSURANCE LEVELS
O1: Standard, no radiation guarantee
Notes:
1. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of
MIL-PRF-38534, which is defined as “no RHA”.
2. Space Prototype (O), non-QML, products do not meet all of the requirements of MIL-PRF-38534.
3. Redmond site, Interpoint, has a Radiation Hardness assurance plan on file with DSCC.
SMSA Single and Dual, Rev F - 20090318 - Pending Revision F Release. This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in
products or specifications without notice. SMSA Series is a trademark of Interpoint. Copyright © 1999 - 2006 Interpoint Corporation. All rights
reserved. www.interpoint.com
Page 14 of 14