FEATURES
● Low cost
● Diffused junction
● Low forward voltage drop
● Low reverse leakage current
● High current capability
● The plastic material carries UL recognition 94V-0
MECHANICAL DATA
●Case: JEDEC R-3 molded plastic
●Polarity: Color band denotes cathode
●Weight: 0.021 ounces , 0.58 grams
●Mounting position: Any
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25℃ ambient temperature unless otherwise specified.
Single phase, half wave ,60Hz, resistive or inductive load.
For capacitive load, derate current by 20%
CHARACTERISTICS SYMBOL RL251 RL252 RL253 RL254 RL255 RL256 RL257 UNIT
Maximum Recurrent Peak Reverse Voltage VRRM 50 100 200 400 600 800 1000 V
Maximum RMS Voltage VRMS 35 70 140 280 420 560 700 V
Maximum DC Blocking Voltage VDC 50 100 200 400 600 800 1000 V
Maximum Average Forward
Rectified Current @TA =70 ℃
Peak Forward Surge Current
8.3ms Single Half Sine-Wave
Super Imposed on Rated Load(JEDEC Method)
Maximum Peak Forward Voltage at 2.5A DC VFV
Maximum DC Reverse Current @TJ=25℃
at Rated DC Blocking Voltage @TJ=100℃
Typical Junction Capacitance (Note1) CJpF
Typical Thermal Resistance (Note2) RθJA ℃/W
Operating Temperature Range TJ℃
Storage Temperature Range TSTG ℃
PLASTIC SILICON RECTIFIERS REVERSE VOLTAGE - 50 to 1000 Volts
FORWARD CURRENT - 2.5 Amperes
RL251 thru RL257
~ 13 ~
IFSM 90
IR50
30
2.Thermal resistance junction of ambient.
-55 to +125
-55 to +125
NOTES:1.Measured at 1.0 MHz and applied reverse voltage of 4.0V DC
I(AV) 2.5 A
1.1
5.0
25
A
uA
.157(4.0)
.142(3.6)
.042(1.07)
.038(0.97)
.171(4.35)
.156(3.95)
1.0(25.4)
MIN
1.0(25.4)
MIN
R- 3
RATING AND CHARACTERTIC CURVES
RL251 thru RL257
~ 14 ~
FIG. 1 – FORWARD CURRENT DERATING CURVE
AMBIENT TEMPERATURE
(
)
AVERAGE FORWARD CURRENT
(AMPERES)
0.5
025
2.5
1.0
1.5
2.0
50 75 100 125 150 175
SINGLE PHASE HALF WAVE 60Hz
RESISTIVE OR INDUCTIVE LOAD
NUMBER OF CYCLES AT 60Hz
FIG. 2 – MAXIMUM NON-REPETITIVE SURGE CURRENT
PEAK FORWARD SURGE CURRENT
(AMPERES)
1
90
60
30
0
120
2 4
10
20 40
100
PULSE WIDTH 8.3ms
SINGLE HALF-SINE-WAVE
(JEDEC METHOD)
FIG.3 – TYPICAL JUNCTION CAPACITANCE
CAPACITANCE (pF)
REVERSE VOLTAGE,VOLTS
100
10
1
60
40
20
2
4
4
.2 .4 20 402 1.0 100
.1
TJ = 25°C
f = 1 MHz
FIG.4-TYPICAL FORWARD CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT,(A)
INSTANTANEOUS FORWARD VOLTAGE,VOLTS
0
0.1
1.0
0.01
10
0.2 0.4 0.6 0.8 1.2 1.61.41.0 1.8
TJ = 25°C
PULSE WIDTH 300us
