Page 1
GBU4A - GBU4M
Features
•Surge overload rating: 150 amperes peak.
•Reliable low cost construction utilizing
molded plastic technique.
•Ideal for printed circuit board.
4.0 Ampere Bridge Rectifiers
GBU
0.125 X 45
(3.2) Typ
0.740 (18.8)
0.720 (18.3)
0.710 (18.0)
0.690 (17.5)
0.100 (2.54)
0.085 (2.16)
0.080 (2.03)
0.065 (1.65)
Dimensions are in:
inches (mm)
GBU4A - GBU4M
O
0.075 R
(1.9)
+
0.880 (22.3)
0.860 (21.8)
+
+
~
0.210 (5.3)
0.190 (4.8)
0.160 (4.1)
0.140 (3.5)
~
0.020 R
TYP
0.310 (7.9)
0.290 (7.4)
0.085 (2.16)
0.065 (1.65)
0.080 (2.03)
0.060 (1.52)
0.050 (1.27)
0.040 (1.02)
0.050 (1.3)
0.040 (1.0)
Absolute Maximum Ratings* T
= 25°C unless otherwise noted
A
Symbol Parameter Value Units
I
O
i
f(surge)
P
D
R
θ
JA
T
stg
T
J
Average Rectified Current @ TA = 100°C
= 40°C
@ T
A
Peak Forward Surge Current
8.3 ms single half-sine-wave
Superimposed on rated load (JEDEC method)
Total Device Dissipation
Derate above 25°C
Thermal Resistance, Junction to Ambient,** per leg 19
Storage Temperature Range -55 to +150
Operating Junction Temperature -55 to +150
4.0
3.0
150 A
6.9
55
mW/°C
°
C/W
W
°C
°
A
A
C
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
**Device mounted on PCB with 0.5 x 0.5" (12 x 12 mm).
Electrical Characteristics T
= 25°C unless otherwise noted
A
Parameter Device Units
4A 4B 4D 4G 4J 4K 4M
Peak Repetitive Reverse Voltage 50 100 200 400 600 800 1000 V
Maximum RMS Input Voltage 35 70 140 280 420 560 700 V
DC Reverse Voltage (Rated VR)
Maximum Reverse Leakage, per element
@ rated V
R
TA = 25°C
= 125°C
T
A
Maximum Forward Voltage Drop, per element
@ 4.0 A 1.0 V
I2t rating for fusing t < 8.35 ms 93 A2Sec
50 100 200 400 600 800 1000 V
5.0
500
A
µ
A
µ
1999 Fairchild Semiconductor Corporation
GBU4A-GBU4M, Rev. A
Page 2
T ypical Characteristics
GBU4A - GBU4M
Bridge Rectifiers
(continued)
Forward Current Derating Curve
5
4
3
2
MOUNTED ON PC BOARD,
TA 0.5" (12.7mm) LE A D LE N GTH
1
FORWAR D CURRE NT (A)
60Hz RESISTIVE OR INDUCTIVE LOAD
0
0 50 100 150
TEMPERATURE ( C)
HEAT-SINK
MOUNTING, TC
4x4x0 .15"
COPPER PLATE
º
Reverse Characteris tics
10
º
T = 100 C
µ
1
0.1
REVERSE CURRENT ( A)
0.01
0 20406080100120140
PERCENT OF RA TED PEAK REVERSE VOL TAGE (%)
C
T = 25 C
J
º
Forward Characteristics
100
10
T = 25 C
º
1
J
Pulse Width = 300µs
1% Duty Cycle
FORWA RD CU RRENT (A)
0.1
0.7 0.8 0.9 1 1.1 1.2 1.3 1.4
FORWARD VOLTAGE (V)
Non-Repetitive Surge Current
150
120
90
60
º
T = 105 C
J
30
FORWARD SURGE CU RRENT (A)
0
1 2 5 10 20 50 100
NUMBER OF CYCLES AT 60Hz
Junction Capacitance
200
100
50
CAPACITANCE (pF)
T = 25 C
º
J
f = 1.0 MHz
Visg = 50m Vp-p
10
1 5 10 50 100
GBU4A- GBU4J
GBU4K
K-GBU4M
REVE RSE VOLTA GE (V)
GBU4A-GBU4M, Rev. A
Page 3
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®
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NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
Formative or
In Design
First Production
Full Production
Not In Production
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
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