1N4934 - 1N4937
Fast Rectifiers
Features
Low Forward Voltage Drop
High Surge Current Capability
High Reliability
High Current Capability
DO-41
COLOR BAND DENOTES CATHODE
Ordering Information
Part Number
Top Mark
Package
Packing Method
1N4934
1N4934
DO-204AL (DO-41)
Tape and Reel
1N4935
1N4935
DO-204AL (DO-41)
Tape and Reel
1N4936
1N4936
DO-204AL (DO-41)
Tape and Reel
1N4937
1N4937
DO-204AL (DO-41)
Tape and Reel
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The
absolute maximum ratings are stress ratings only. Values are at TA = 25C unless otherwise noted.
Symbol
Parameter
Value
1N4934
1N4935
1N4936
1N4937
100
200
400
600
Unit
VRRM
Maximum Repetitive Reverse Voltage
IF(AV)
Average Rectified Forward Current
.375 " Lead Length at TA = 50C
1.0
IFSM
Non-Repetitive Peak Forward Surge Current
8.3 ms Single Half-Sine-Wave
30
TSTG
Storage Temperature Range
-50 to +150
Operating Junction Temperature
-50 to +150
TJ
2001 Fairchild Semiconductor Corporation
1N4934 - 1N4937 Rev. 2.4
www.fairchildsemi.com
1N4934 - 1N4937 Fast Rectifiers
January 2015
Values are at TA = 25C unless otherwise noted.
Symbol
PD
RJA
Parameter
Value
Unit
Power Dissipation
2.5
Thermal Resistance, Junction-to-Ambient
50
C/W
Electrical Characteristics
Values are at TA = 25C unless otherwise noted.
Symbol
Parameter
Conditions
Value
1N4934
1N4935
1N4936
1N4937
Unit
VF
Forward Voltage
IF = 1.0 A
1.2
trr
Reverse Recovery Time
IF = 0.5 A, IR = 1.0 A,
Irr = 0.25 A
150
ns
IR
Reverse Current
at Rated VR
TA = 25C
5.0
TA = 125C
100
CT
Total Capacitance
VR = 4.0 V, f = 1.0 MHz
12
2001 Fairchild Semiconductor Corporation
1N4934 - 1N4937 Rev. 2.4
A
pF
www.fairchildsemi.com
2
1N4934 - 1N4937 Fast Rectifiers
Thermal Characteristics
10
0.8
Forward Current, IF [A]
Average Rectified Forward Current, IF [A]
20
0.6
SINGLE PHASE
HALF WAVE
60HZ
RESISTIVE OR
INDUCTIVE LOAD
.375" 9.0 mm LEAD
LENGTHS
0.4
0.2
25
50
75
100
125
Ambient Temperature [C]
150
1
0.3
0.1
0.8
1
1.2
1.4
1.6
Forward Voltage, VF [V]
1.8
Figure 2. Forward Voltage Characteristics
100
40
TA = 100 C
Reverse Current, IR [mA]
30
20
10
TA
J = 25 C
Pulse Width = 300
200
S
2% Duty Cycle
0.03
0.01
0.6
175
Figure 1. Forward Current Derating Curve
Peak Forward Surge Current, IFSM [A]
5
10
20
Number of Cycles at 60Hz
50
10
1
TA
J = 25 C
0.1
100
Figure 3. Non-Repetitive Surge Current
20
40
60
80
100
120
140
Percent of Rated Peak Reverse Voltage [%]
Figure 4. Reverse Current vs. Reverse Voltage
Total Capacitance, CT [pF]
20
10
5
10
20
Reverse Voltage, V R [V]
50
100
Figure 5. Total Capacitance
50
NONINDUCTIVE
50
NONINDUCTIVE
+0.5A
trr
(-)
DUT
50V
(approx)
50
NONINDUCTIVE
Pulse
Generator
(Note 2)
-0.25A
(+)
OSCILLOSCOPE
(Note 1)
NOTES:
1. Rise time = 7.0 ns max; Input impedance = 1.0 megaohm 22 pf.
2. Rise time = 10 ns max; Source impedance = 50 ohms.
-1.0A
1.0cm
SET TIME BASE FOR
5/ 10 ns/ cm
Figure 6. Reverse Recovery Time Characteristic and Test Circuit Diagram
2001 Fairchild Semiconductor Corporation
1N4934 - 1N4937 Rev. 2.4
www.fairchildsemi.com
3
1N4934 - 1N4937 Fast Rectifiers
Typical Performance Characteristics
1N4934 - 1N4937 Fast Rectifiers
Physical Dimension
25.40 MIN (2X)
5.20
4.06
0.86
0.71
2.72
2.03
NOTES: UNLESS OTHERWISE SPECIFIED
A) PACKAGE STANDARD REFERENCE:
JEDEC DO-204 VARIATION AL.
B) PACKAGE BODY CAN BE PLASTIC OR
HERMETICALLY SEALED GLASS .
D) ALL DIMENSIONS ARE IN MILLIMETERS.
E) DRAWING FILE NAME: DO41AREV2
Figure 7. DO-41, AXIAL LEADED, GLASS, JEDEC DO204, VARIATION AL
2001 Fairchild Semiconductor Corporation
1N4934 - 1N4937 Rev. 2.4
www.fairchildsemi.com
4
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Product Status
Advance Information
Formative / In Design
Preliminary
First Production
No Identification Needed
Full Production
Obsolete
Not In Production
Definition
Datasheet contains the design specifications for product development. Specifications may change
in any manner without notice.
Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild
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Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make
changes at any time without notice to improve the design.
Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.
The datasheet is for reference information only.
Rev. I73
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