HER251 [SYNSEMI]
HIGH EFFICIENT RECTIFIER DIODES; 高产高效整流二极管
| 型号： | HER251 |
| 厂家： | 
SYNSEMI, INC. |
| 描述： | HIGH EFFICIENT RECTIFIER DIODES |
| 文件： | 总2页 (文件大小：35K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HIGH EFFICIENT
RECTIFIER DIODES
HER251 - HER258
PRV : 50 - 1000 Volts
Io : 2.5 Amperes
D2A
FEATURES :
1.00 (25.4)
* High current capability
* High surge current capability
* High reliability
0.161 (4.1)
MIN.
0.154 (3.9)
* Low reverse current
* Low forward voltage drop
0.284 (7.2)
0.268 (6.8)
* Fast switching for high efficiency
* Pb / RoHS Free
1.00 (25.4)
MECHANICAL DATA :
* Case : D2A Molded plastic
0.040 (1.02)
0.0385 (0.98)
MIN.
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
Method 208 guaranteed
* Polarity : Color band denotes cathode end
* Mounting position : Any
Dimensions in inches and ( millimeters )
* Weight : 0.645 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25 C ambient temperature unless otherwise specified.
°
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
HER HER HER HER HER HER HER HER
RATING
SYMBOL
UNIT
251
252
100
70
253
200
140
200
254
300
210
300
255
400
280
400
256
600
420
600
257
800 1000
560 700
258
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
VRRM
VRMS
VDC
50
V
V
V
35
Maximum DC Blocking Voltage
Maximum Average Forward Current
50
100
800 1000
IF(AV)
2.5
A
0.375"(9.5mm) Lead Length
Ta = 55 °C
Maximum Peak Forward Surge Current,
8.3ms Single half sine wave superimposed
on rated load (JEDEC Method)
IFSM
100
A
Maximum Peak Forward Voltage at IF = 2.5 A
VF
IR
1.1
50
1.7
75
V
10
50
Maximum DC Reverse Current
at Rated DC Blocking Voltage
Ta = 25 °C
mA
mA
ns
pf
IR(H)
Trr
Ta = 100 °C
Maximum Reverse Recovery Time ( Note 1 )
Typical Junction Capacitance ( Note 2 )
Junction Temperature Range
CJ
50
TJ
- 65 to + 150
- 65 to + 150
°C
°C
Storage Temperature Range
TSTG
Notes :
( 1 ) Reverse Recovery Test Conditions : IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A.
( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 VDC
Page 1 of 2
Rev. 02 : March 24, 2005
RATING AND CHARACTERISTIC CURVES ( HER251 - HER258 )
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
Trr
50W
10W
+ 0.5 A
D.U.T.
0
PULSE
GENERATOR
( NOTE 2 )
+
- 0.25 A
50 Vdc
(approx)
OSCILLOSCOPE
( NOTE 1 )
1 W
- 1.0 A
SET TIME BASE FOR 25-35 ns/cm
NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF.
2. Rise time = 10 ns max., Source Impedance = 50 ohms.
3. All Resistors = Non-inductive Types.
1 cm
FIG.2 - DERATING CURVE FOR OUTPUT
RECTIFIED CURRENT
FIG.3 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
2.5
2.0
100
80
8.3 ms SINGLE HALF SINE WAVE
Ta = 50 °C
60
40
20
1.5
1.0
0.5
60Hz RESISTIVE OR INDUCTIVE LOAD
0
0
0
25
50
75
100
125
150
175
1
2
4
6
10
20
40
60 100
NUMBER OF CYCLES AT 60Hz
AMBIENT TEMPERATURE, ( C)
°
FIG.4 - TYPICAL FORWARD CHARACTERISTICS
FIG.5 - TYPICAL REVERSE CHARACTERISTICS
10
100
Pulse Width = 300 ms
TJ = 100 °C
2% Duty Cycle
TJ = 25 °C
1.0
10
HER251-HER255
0.1
1.0
0.1
TJ = 25 °C
HER256-HER258
0.01
0
20
40
60
80
100
120
140
PERCENT OF RATED REVERSE
VOLTAGE, (%)
0.01
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
FORWARD VOLTAGE, VOLTS
Page 2 of 2
Rev. 02 : March 24, 2005
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