1N3957 (Vishay)
Glass Passivated Rectifiers

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JAN and JANTX 1N3611 thru 1N3614 and 1N3957
Patented*
Vishay Semiconductors
formerly
Glass Passivated Rectifiers
DO-204AL (EG1)
TARY QUALI
Reverse Voltage 200 to 1000V
Forward Current 1.0A
0.107 (2.7)
0.080 (2.0)
DIA.
®
1.0 (25.4)
MIN.
0.205 (5.2)
0.160 (4.1)
Dimensions
in inches and
(millimeters)
Features
Qualified to MIL-PRF-19500/228
Class 1 high temperature metallurgically bonded con-
struction brazed > 600°C
1.0 ampere operation at TA = 55°C with no thermal runaway
Typical IR less than 0.1µA
Cavity-free, glass passivated junction. In epoxy over her-
metic glass
High temperature soldering guaranteed: 350°C/10 seconds,
0.375 (9.5mm) lead length, 5 lbs. (2.3kg) tension
1.0 (25.4)
MIN.
0.034 (0.86)
0.028 (0.71)
DIA.
* Glass-plastic encapsulation technique is covered by Patent No. 3,996,602
and brazed-lead assembly by Patent No. 3,930,306
Mechanical Data
Case: DO-204AL, molded epoxy over glass body (EG1)
Terminals: Solder plated axial leads, solderable per
MIL-STD-750, Method 2026
Polarity: Color band denotes cathode end
Mounting Position: Any Weight: 0.015oz., 0.4g
Flammability: Epoxy is rated UL 94V-0.
Maximum Ratings & Thermal Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Prefix J = JAN Quality Level; Prefix JX = JANTX Quality Level
Symbol
Unit
J,JX 1N3611 J,JX 1N3612 J,JX 1N3613 J,JX 1N3614 J,JX 1N3957
Maximum repetitive peak reverse voltage
VRRM
200
400
600
800 1000
V
Maximum RMS voltage
VRMS
140
280
420
560
700
V
Maximum DC blocking voltage
VDC 200 400 600 800 1000 V
Maximum average forward rectified current
0.375(9.5mm) lead length at TA = 55°C
IF(AV)
1.0
A
Peak forward surge current 10 surges of 8.3ms each at
1 min. intervals super-imposed on IO = 750mA DC;
IFSM
VR = rated VRRM TA = 100°C (per MIL-STD-750 m 4066)
30
A
Typical thermal resistance(1)
RθJL
RθJA
38
45
°C/W
Operating junction and storage temperature range TJ, TSTG
65 to +175
°C
Barometric Pressure
Hg 8 54 87 mm
Electrical Characteristics Ratings at 25°C ambient temperature unless otherwise specified.
Minimum reverse breakdown voltage at 50µA
VBR 220 440 660
Maximum instantaneous
at 1.0A, TA = 25°C
forward voltage Tp = 300µs at 3.0A, TA = 25°C
at 1.0A, TA = 65°C
VF
1.1
1.3
1.5
Maximum DC reverse current
at rated DC blocking voltage
TA = 25°C
TA = 150°C
IR
1
300
Typical reverse recovery time at
IF = 0.5A, IR = 1.0A, Irr = 0.25A
trr
2.0
Typical junction capacitance at 4V, 1MHz
CJ
8.0
Notes: (1) Thermal resistance from junction to ambient at 0.375(9.5mm) lead length, P.C.B. mounted
880 1100
V
V
µA
µs
pF
Document Number 88651
5-Mar-02
www.vishay.com
1


1N3957 (Vishay)
Glass Passivated Rectifiers

No Preview Available !

Click to Download PDF File for PC

JAN and JANTX 1N3611 thru 1N3614 and 1N3957
Vishay Semiconductors
formerly
Ratings and
Characteristic Curves (TA = 25°C unless otherwise noted)
Fig. 1 – Forward Current Derating Curve
1.0
60 Hz Resistive
or Inductive Load
0.75
0.375" (9.5mm)
Lead length
0.5
0.25
0
25 50 75 100 125 150 175
Ambient Temperature (°C)
Fig. 2 – Typical Instantaneous
Forward Characteristics
10
TJ = 150°C
1
TJ = 25°C
0.1
0.01
0.4
Pulse Width = 300µs
1% Duty Cycle
0.6 0.8 1.0 1.2 1.4
Instantaneous Forward Voltage (V)
1.6
Fig. 3 – Typical Reverse Characteristics
10
TJ = 125°C
1
Fig. 4 – Typical Junction Capacitance
20
TJ = 25°C
f = 1.0 MHz
Vsig = 50mVp-p
10
0.1
0.01
0
100
TJ = 75°C
TJ = 25°C
20 40 60 80
Rated Peak Reverse Voltage (%)
Fig. 5 – Typical Transient
Thermal Impedance
100
1
0.1
1 10
Reverse Voltage (V)
100
10
1
0.1
0.01
0.1 1
10
t, Pulse Duration, sec
www.vishay.com
2
100
Document Number 88651
5-Mar-02




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