Description
Features
n INEXPENSIVE
n GLASS PASSIVATED DIE
n AVALANCHE VOLTAGE 39 TO
47 VOLTS
Electrical Characteristics @ 25
o
C.
Maximum Ratings
FR2543, 3543 & 4043
FR2543, 3543 & 4043
V
RRM
33
Volts
V
RWM
33
Volts
V
DC
33
Volts
I
RSM
0.11
Amps
150
Amps
200
Amps
I
O
25
Amps
35
Amps
50
Amps
I
FSM
250
Amps
400
Amps
500
Amps
Symbol
Value
Units
Data Sheet
F
AST
O
RB
- 25, 35 & 40 Amp
Avalanche AUTOMOTIVE
RECTIFIERS
"
7.5
C / W
"
10
C / W
"
13
C / W
.8 Typ
C / W
Instantaneous Forward Voltage (I
F
= 100 Amps, T
C
= 25
C)...V
F
Instantaneous Reverse Current (V
R
= 33 V
DC
, T
C
= 25
C)...I
R
Breakdown Voltage (I
R
= 100 mAmps, T
C
= 25
C)...V
BR
Clamping Voltage (I
R
= 90 Amps, T
C
= 150
C, PW = 80
S)...V
BR
Breakdown Voltage Temperature Coefficient...V
(br)
T
C
Forward Voltage Temperature Coefficient...(I
F
= 10 mA) V
F(tc)
Fig. 1
Fig. 1
Fig. 1
Fig. 1
Fig. 1
Length
Length
Length
Length
Length
Max.
Max.
Max.
Max.
Max.
Units
Units
Units
Units
Units
N/A
1.10
Volts
N/A
1.0
Amps
39
47
Volts
N/A
40
Volts
N/A
0.096
% /
C
N/A
2
mV /
C
Min.
Min.
Min.
Min.
Min.
Max.
Max.
Max.
Max.
Max.
Units
Units
Units
Units
Units
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Repetitive Peak Reverse Surge Current
FR2543
FR3543
FR4043
Average Forward Rectified Current
FR2543
FR3543
FR4043
Non-Repetitive Peak Forward Surge Current
FR2543
FR3543
FR4043
Thermal Resistance, Junction to Lead
Both Equal Length Leads to Heat Sink
R
JL
Thermal Resistance, Junction to Case
R
JC
8
Note: Ring Markings on Cathode
Note: FR4043 is offered only in 10mm (.395" Dia.) package.
Page 2-19
Fig. 1
Fig. 1
Fig. 1
Fig. 1
Fig. 1
Surge Current Characteristics
I
RRM
(EXP)
I
RRM
(EXP)
0 10
30
50
.220
.241
.175
Leads 1.00 typ. .05 Dia.
Mechanical Dimensions
FR2543S
.337
FR4043
.395
Options - Add Suffix to Part #:
FR2543L = 2 Leads; FR4043L = 2 Leads
For 1 Lead Small Pkg:
FR2543SC = Lead On Cathode
FR3543SA = Lead On Anode
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