Dated : 11/11/2002
SEMTECH ELECTRONICS LTD.
(Subsidiary of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
RL251 THRU RL257
GENERAL PURPOSE PLASTIC RECTIFIERS
Reverse Voltage – 50 to 1000 Volts
Forward Current – 2.5 Amperes
Features
• Plastic package has Underwriters Laboratory
• Flammability Classification 94V-0
• High surge current capability.
• 2.5 ampere operation at TA=75oC with no thermal
• runaway.
• Low reverse leakage.
• Construction utilizes void-free molded plastic technique.
• High temperature soldering guaranteed:
• 250oC/10 seconds, 0.375”(9.5mm) lead length,
• 5 lbs (2.3kg) tension.
Mechanical Data
• Case: Molded plastic, R-3
• Terminals: Plated axial leads, solderable per
• MIL-STD-750, method 2026
• Polarity: Color band denotes cathode end.
• Mounting Position: Any.
Absolute Maximum Ratings andCharacteristics @ 250C unless otherwise specified.
Symbols RL251 RL252
RL253 RL254 RL255 RL256 RL257
Units
Maximum repetitive peak reverse voltage
VRRM
50
100
200
400
600
800
1000
Volts
Maximum RMS voltage
VRMS
35
70
140
280
420
560
700
Volts
Maximum DC blocking voltage
VDC
50
100
200
400
600
800
1000
Volts
Maximum average forward current
at TA = 75
OC
I(AV)
2.5
Amps
Peak forward surge current
8.3mS single half sine-wave superimposed
on rated load (MIL-STD-750D 4066 method)
IFSM
150
Amps
Maximum instantaneous forward voltage
at IFM=2.5A , TA=25
oC(Note 2)
VF
1.1
Volts
Maximum DC reverse current TA = 25
OC
at rated DC blocking voltage TA = 100
OC
IR
5
50
µA
Typical thermal resistance
R
θ
JA
35
OC/W
Typical junction capacitance (Note 1)
CJ
35
pF
Operating and storage temperature range
TJ ,TS
-65 to +175
OC
Notes:
(1) Measured at 1MHZ and applied reverse voltage of 4volts
(2) Pulse test: pulse width 300uSec, Duty cycle 1%.
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