Data Sheet
F
AST
O
RB
- 25 & 35 Amp
Avalanche AUTOMOTIVE
RECTIFIERS
Mechanical Dimensions
FR2528
FR2500S
.395
.337
FR2528S
.337
Options - Add Suffix to Part #:
FR2528L = 2 Leads; FR3528L = 2 Leads
For 1 Lead Small Pkg:
FR2528SC = Lead On Cathode
FR2528SA = Lead On Anode
Leads 1.00 typ. .05 Dia.
.175
FR2528 & 3528
Description
Note: Ring Markings on Cathode
.220
.241
Features
n
INEXPENSIVE
n
GLASS PASSIVATED DIE
n
AVALANCHE VOLTAGE 24 TO
32 VOLTS
Electrical Characteristics @ 25
o
C.
Maximum Ratings
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
Repetitive Peak Reverse Surge Current
Average Forward Rectified Current
FR2528
FR3528
FR2528
FR3528
Non-Repetitive Peak Forward Surge Current
Surge Supplied @ Rated Load Conditions, ½ Wave, Single Phase
FR2528
FR3528
Thermal Resistance, Junction to Lead
Both Equal Length Leads to Heat Sink
R
θJL
Thermal Resistance, Junction to Case
R
θJC
Length
¼"
¾"
8
½"
Max.
7.5
10
13
.8 Typ
FR2528 & 3528
Symbol
Value
V
RRM
20
V
RWM
20
V
DC
20
I
RSM
110
150
I
O
25
35
I
FSM
250
600
800
Units
°C
/ W
°C
/ W
°C
/ W
°C
/ W
I
RRM
(EXP)
I
RRM
(EXP)
Replaces MR2535 & MR3525
Units
Volts
Volts
Volts
Amps
Amps
Amps
Amps
Amps
Amps
Amps
Fig. 1
Fig. 1
Surge Current Characteristics
Min.
N/A
N/A
24
N/A
N/A
N/A
Max.
1.10
1.0
32
40
0.096
2
0 10
30
50
Instantaneous Forward Voltage (I
F
= 100 Amps, T
C
= 25°C)...V
F
Instantaneous Reverse Current (V
R
= 20 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
µS)...V
BR
Breakdown Voltage Temperature Coefficient...V
(br)
T
C
Forward Voltage Temperature Coefficient...(I
F
= 10 mA) V
F(tc)
Page 2-20
Units
Volts
µAmps
Volts
Volts
% /
°C
mV /
°C