MICROSEMI 1N6461US

1N6461US thru 1N6468US
Voidless-Hermetically-Sealed Surface
Mount Unidirectional Transient
SCOTTSDALE DIVISION
APPEARANCE
This surface mount series of industry recognized voidless-hermetically-sealed
Unidirectional Transient Voltage Suppressor (TVS) designs is military qualified to MILPRF-19500/551 and are ideal for high-reliability applications where a failure cannot be
tolerated. They provide a Working Peak “Standoff” Voltage selection from 5.0 to 51.6
Volts with 500 W ratings. They are very robust in hard-glass construction and also use
an internal metallurgical bond identified as Category I for high reliability applications.
The 500 W series is military qualified to MIL-PRF-19500/551. These devices are also
available in axial-leaded packages for thru-hole mounting by deleting the “US” suffix
(see separate data sheet for 1N6461 thru 1N6468). Microsemi also offers numerous
other TVS products to meet higher and lower peak pulse power and voltage ratings in
both through-hole and surface-mount packages.
Package “E”
(or “D-5B”)
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DESCRIPTION
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
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APPLICATIONS / BENEFITS
High surge current and peak pulse power provides
transient voltage protection for sensitive circuits
Triple-layer passivation
Internal “Category I” metallurgical bonds
Voidless hermetically sealed glass package
JAN/TX/TXV military qualifications available per MILPRF-19500/551 by adding JAN, JANTX, or JANTXV
prefix
Further options for screening in accordance with MILPRF-19500 for JANS by using a “MSP” prefix, e.g.
MSP6462, MSP6468, etc.
Axial-leaded equivalents are also available in a
square-end-cap MELF configuration (see separate
data sheet for 1N6461 thru 1N6168)
MAXIMUM RATINGS
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Military and other high reliability transient protection
Extremely robust construction
Working Peak “Standoff” Voltage (VWM) from 5.0 to
51.6 V
Available as 500 W Peak Pulse Power (PPP)
ESD and EFT protection per IEC61000-4-2 and
IEC61000-4-4 respectively
Secondary lightning protection per select levels in
IEC61000-4-5
Square-end-cap terminals for easy placement
Nonsensitive to ESD per MIL-STD-750 Method
1020
Inherently radiation hard as described in Microsemi
MicroNote 050
MECHANICAL AND PACKAGING
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Copyright  2004
11-01-2004 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N6461 – 1N6468
1N6469 – 1N6476
• CASE: Hermetically sealed voidless hard glass
• Operating & Storage Temperature: -55 C to +175 C
with Tungsten slugs
• Peak Pulse Power at 25oC: 500 Watts @ 10/1000 µs
• TERMINATIONS: End caps are solid silver with
(also see Figures 1,2 and 4)
Tin/Lead (Sn/Pb) finish
• Impulse repetition rate (duty factor): 0.01%
•
MARKING: None
• Forward Surge Current: 80 [email protected] 8.33 ms one-half
• POLARITY: Cathode band
sine wave
• Tape & Reel option: Standard per EIA-481-B
• Forward Voltage: 1.5 V @ 1 Amp dc and 4.8 V at 100
Amps (pulsed)
• Weight: 539 mg
• Steady-State Power: 2.5 Watts @ TA = 25oC (see
• See package dimensions on last page
note below and Figure 4)
• Thermal Resistance Junction to End Cap: 20 oC/W
• Solder Temperatures: 260oC for 10 s (maximum)
NOTE: Steady-state power ratings with reference to ambient are for PC boards where thermal resistance from
mounting point to ambient is sufficiently controlled where TJ(MAX) is not exceeded.
1N6461US thru 1N6468US
Voidless-Hermetically-Sealed Surface
Mount Unidirectional Transient
SCOTTSDALE DIVISION
TYPE
1N6461US
1N6462US
1N6463US
1N6464US
1N6465US
1N6466US
1N6467US
1N6468US
Symbol
VBR
BREAK
DOWN
VOLTAGE
V(BR)
MIN.
Volts
5.6
6.5
13.6
16.4
27.0
33.0
43.7
54.0
BREAKDOWN
CURRENT
I (BR)
WORKING
PEAK
VOLTAGE
VWM
MAX
LEAKAGE
CURRENT
ID
mAdc
25
20
5
5
2
1
1
1
Vdc
5
6
12
15
24
30.5
40.3
51.6
µAdc
3000
2500
500
500
50
3
2
2
MAXIMUM
CLAMPING
VOLTAGE
VC
@ 10/1000 µs
V(pk)
9.0
11.0
22.6
26.5
41.4
47.5
63.5
78.5
MAXIMUM
PEAK PULSE
CURRENT
IPP
@8/20 µs
A(pk)
315
258
125
107
69
63
45
35
@10/1000 µs
A(pk)
56
46
22
19
12
11
8
6
MAXIMUM
TEMP.
COEF. OF
V(BR)
o
%/ C
-.03, +0.04
0.06
0.085
0.085
.096
.098
.101
.103
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ELECTRICAL CHARACTERISTICS
SYMBOLS & DEFINITIONS
Definition
Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current.
Working Peak Voltage: The maximum peak voltage that can be applied over the operating temperature range.
This is also referred to as Standoff Voltage.
Maximum Standoff Current: The maximum current that will flow at the specified voltage and temperature.
Maximum clamping voltage at specified IPP (Peak Pulse Current) at the specified pulse conditions.
Peak Pulse Power: The peak power dissipation resulting from the peak impulse current IPP.
VWM
ID
VC
PPP
GRAPHS
1N6461 – 1N6468
1N6469 – 1N6476
FIGURE 1
PEAK PULSE POWER vs. PULSE TIME
Copyright  2004
11-01-2004 REV A
FIGURE 2
10/1000 µs CURRENT IMPULSE WAVEFORM
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
1N6461US thru 1N6468US
Voidless-Hermetically-Sealed Surface
Mount Unidirectional Transient
WWW . Microsemi .C OM
Peak Pulse Power (Ppp), Current (Ipp),
And DC Power in Percent of 25oC Rating
SCOTTSDALE DIVISION
FIGURE 3
8/20 µs CURRENT IMPULSE WAVEFORM
(per MIL-PRF-19500/551
T – Temperature – oC
FIGURE 4
DERATING CURVE
PACKAGE DIMENSIONS Inches [mm]
1N6461 – 1N6468
1N6469 – 1N6476
E-MELF-PKG (D-5B)
Note: If mounting requires adhesive separate from the solder,
an additional 0.080 inch diameter contact may be placed in the
center between the pads as an optional spot for cement as
shown in the pad layout.
Copyright  2004
11-01-2004 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3