HER254 SYNSEMI [SynSemi, Inc.], HER254 Datasheet
HER254
Manufacturer Part Number
HER254
Description
HIGH EFFICIENT RECTIFIER DIODES
Manufacturer
SYNSEMI [SynSemi, Inc.]
Datasheet
1.HER254.pdf
(2 pages)
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%.
Notes :
Page 1 of 2
FEATURES :
MECHANICAL DATA :
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
PRV : 50 - 1000 Volts
Io : 2.5 Amperes
HER251 - HER258
* High current capability
* High surge current capability
* High reliability
* Low reverse current
* Low forward voltage drop
* Fast switching for high efficiency
* Pb / RoHS Free
* Case : D2A Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.645 gram
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Current
0.375"(9.5mm) Lead Length
Maximum Peak Forward Surge Current,
8.3ms Single half sine wave superimposed
on rated load (JEDEC Method)
Maximum Peak Forward Voltage at I
Maximum DC Reverse Current
at Rated DC Blocking Voltage
Maximum Reverse Recovery Time ( Note 1 )
Typical Junction Capacitance ( Note 2 )
Junction Temperature Range
Storage Temperature Range
( 1 ) Reverse Recovery Test Conditions : I
( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 V
Method 208 guaranteed
RATING
Ta = 55 C
F
Ta = 25 C
Ta = 100 C
F
= 2.5 A
= 0.5 A, I
R
= 1.0 A, Irr = 0.25 A.
SYMBOL
V
V
I
T
I
I
V
F(AV)
DC
R(H)
FSM
V
Trr
C
RRM
RMS
T
STG
I
DC
R
F
J
J
HER
251
50
35
50
HER
252
100
100
70
Dimensions in inches and ( millimeters )
HER
RECTIFIER DIODES
253
200
140
200
1.1
50
HIGH EFFICIENT
HER
- 65 to + 150
- 65 to + 150
254
300
210
300
0.161 (4.1)
0.154 (3.9)
0.0385 (0.98)
0.040 (1.02)
100
2.5
10
50
50
HER
255
400
280
400
D2A
HER
256
600
420
600
0.284 (7.2)
0.268 (6.8)
1.00 (25.4)
1.00 (25.4)
Rev. 02 : March 24, 2005
MIN.
MIN.
HER
257
800
560
800
1.7
75
1000
1000
HER
258
700
UNIT
ns
pf
V
V
V
A
A
V
C
C
A
A
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