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1N914
Qualified Levels:
JAN, JANTX, and
JANTXV
Glass Axial Switching Diode
Available on
commercial
version
Qualified per MIL-PRF-19500/116
DESCRIPTION
This 1N914 JEDEC registered switching/signal diode features internal metallurgical bonded
construction for military grade products per MIL-PRF-19500/116. This small low capacitance
diode, with very fast switching speeds, is hermetically sealed and bonded into a double-plug
DO-35 package. It may be used in a variety of very high speed applications including
switchers, detectors, transient OR'ing, logic arrays, blocking, as well as low-capacitance
steering diodes, etc. Microsemi also offers a variety of other switching/signal diodes.
Important: For the latest information, visit our website http://www.microsemi.com.
DO-35 (DO-204AH)
Package
FEATURES
•
JEDEC registered 1N914 number.
•
Hermetically sealed glass construction.
•
Metallurgically bonded.
Also available in:
•
Double plug construction.
•
DO-213AA package
Very low capacitance.
•
Very fast switching speeds with minimal reverse recovery times.
•
JAN, JANTX, and JANTXV qualifications are available per MIL-PRF-19500/116.
•
RoHS compliant version available (commercial grade only).
(surface mount)
1N914UR
(See part nomenclature for all available options.)
APPLICATIONS / BENEFITS
•
•
•
•
•
•
•
High frequency data lines.
Small size for high density mounting using flexible thru-hole leads (see package illustration).
RS-232 & RS–422 interface networks.
Ethernet 10 base T.
Low-capacitance steering diodes.
LAN.
Computers.
MAXIMUM RATINGS @ 25 ºC unless otherwise stated
Parameters/Test Conditions
Symbol
TJ & TSTG
RӨJL
RӨJA
Junction and Storage Temperature
(1)
Thermal Resistance Junction-to-Lead
(2)
Thermal Resistance Junction-to-Ambient
Maximum Breakdown Voltage
Working Peak Reverse Voltage
(3)
Average Rectified Current @ TA = 75 ºC
Non-Repetitive Sinusoidal Surge Current (tp = 8.3 ms)
V(BR)
VRWM
IO
IFSM
Value
-65 to +175
250
325
100
Unit
o
C
o
C/W
o
C/W
V
75
200
2
V
mA
A (pk)
NOTES: 1. Lead length = .375 inch (9.35 mm). See Figure 2 for thermal impedance curves.
2. TA = +75°C on printed circuit board (PCB), PCB = FR4 - .0625 inch (1.59 mm) 1-layer 1-Oz Cu,
horizontal, in still air; pads for axial = .092 inch (2.34 mm) diameter, strip = .030 inch (0.76 mm) x 1 inch
(25.4 mm) long, lead length L ≤ 0.187 inch (≤ 4.75 mm); RӨJA with a defined PCB thermal resistance
condition included, is measured at IO = 200 mA.
3. See Figure 1 for derating.
T4-LDS-0279, Rev. 1 (121565)
©2012 Microsemi Corporation
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
Tel: 1-800-446-1158 or
(978) 620-2600
Fax: (978) 689-0803
MSC – Ireland
Gort Road Business Park,
Ennis, Co. Clare, Ireland
Tel: +353 (0) 65 6840044
Fax: +353 (0) 65 6822298
Website:
www.microsemi.com
Page 1 of 4
1N914
MECHANICAL and PACKAGING
•
•
•
•
•
•
•
CASE: Hermetically sealed glass package.
TERMINALS: Tin/lead plated or RoHS compliant matte-tin (commercial grade only) over copper clad steel. Solderable per MILSTD-750, method 2026.
POLARITY: Cathode indicated by band.
MARKING: Part number.
TAPE & REEL option: Standard per EIA-296. Consult factory for quantities.
WEIGHT: 0.2 grams.
See Package Dimensions on last page.
PART NOMENCLATURE
JAN
1N914
(e3)
Reliability Level
JAN = JAN level
JANTX = JANTX level
JANTXV = JANTXV level
Blank = Commercial grade
RoHS Compliance
e3 = RoHS compliant (on
commercial grade only)
Blank = non-RoHS compliant
JEDEC type number
(see Electrical Characteristics
table)
SYMBOLS & DEFINITIONS
Definition
Symbol
IR
Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
Average Rectified Forward Current: The output current averaged over a full cycle with a 50 Hz or 60 Hz sine-wave
input and a 180 degree conduction angle.
Reverse Recovery Time: The time interval between the instant the current passes through zero when changing from
the forward direction to the reverse direction and a specified decay point after a peak reverse current occurs.
Forward Voltage: The forward voltage the device will exhibit at a specified current (typically shown as maximum
value).
Reverse Voltage: The reverse voltage dc value, no alternating component.
Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating temperature range
excluding all transient voltages (ref JESD282-B). Also sometimes known as PIV.
IO
trr
VF
VR
VRWM
ELECTRICAL CHARACTERISTICS @ 25 ºC unless otherwise noted
FORWARD FORWARD REVERSE FORWARD
VOLTAGE VOLTAGE RECOVERY RECOVERY
VF2 @
TIME
VF1 @
TIME
trr
tfr
IF=10 mA
IF=50 mA
(Note 1)
(Note 2)
V
V
ns
ns
0.8
1.2
5
20
NOTE 1: IF = IR = 10 mA, RL = 100 Ohms.
NOTE 2: IF = 50 mA.
T4-LDS-0279, Rev. 1 (121565)
REVERSE
CURRENT
IR1 @ 20 V
REVERSE
CURRENT
IR2 @ 75 V
nA
µA
25
0.5
REVERSE REVERSE
CURRENT CURRENT
IR3
IR4
@ 20 V
@ 75 V
o
TA=150 C TA=150oC
µA
µA
35
75
CAPACITANCE
C
(Note 3)
CAPACITANCE
C
(Note 4)
pF
pF
4.0
2.8
NOTE 3: VR = 0 V, f = 1 MHz, VSIG = 50 mV (pk to pk).
NOTE 4: VR = 1.5V, f = 1 MHz, VSIG = 50 mV (pk to pk).
©2012 Microsemi Corporation
Page 2 of 4
1N914
DC Operation Maximum Io Rating (mA)
GRAPHS
TA (ºC) (Ambient)
Theta (°C/W)
FIGURE 1 – Temperature – Current Derating
Time (s)
FIGURE 2 – Thermal Impedance
T4-LDS-0279, Rev. 1 (121565)
©2012 Microsemi Corporation
Page 3 of 4
1N914
PACKAGE DIMENSIONS
Ltr
BD
BL
LD
LL
LL1
Inch
Min
.056
.140
.018
1.000
Dimensions
Millimeters
Max
Min
Max
.075
1.42
1.91
.180
3.56
4.57
.022
0.46
0.56
1.500
25.40
38.10
.050
1.27
Notes
3
3
4
NOTES:
1. Dimensions are in inch.
2. Millimeters are given for general information only.
3. Package contour optional within BD and length BL. Heat slugs, if any, shall be included within this cylinder
but shall not be subject to minimum limit of BD. The BL dimension shall include the entire body including
slugs.
4. Within this zone lead, diameter may vary to allow for lead finishes and irregularities other than heat slugs.
5. In accordance with ASME Y14.5M, diameters are equivalent to Φx symbology.
T4-LDS-0279, Rev. 1 (121565)
©2012 Microsemi Corporation
Page 4 of 4