BY251 - BY255
SILI CON RECTIFI ER DI ODES
PRV : 200 - 1300 Volts
Io : 3.0 Am
p
eres
FEATURES :
* High c ur rent capability
* High surge c ur r ent capability
* High reliability
* Low reverse current
* Low for ward voltage drop
* Pb / RoHS Free
MECHANICAL DATA :
* Case : DO-201A D M olded pl astic
* Epoxy : UL94V - O rate flame retar dant
* Lead : Axial lead solderable per MIL-ST D- 202,
Met hod 208 guar anteed
* Pol ar ity : Color band denotes cathode end
* Mount ing position : A ny
* Weight : 0.929 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at
25
°
C ambient temperature unless otherwise specified
.
Sin
g
le
p
hase , half wave, 60 Hz, resistive or inductive load.
For ca
p
acitive load, derate current b
y
20%.
SYMBOL BY251 BY252 BY253 BY254 BY255 UNIT
Maxim um Repetitive Peak Reverse Voltage V
RRM
200 400 600 800 1300 V
Maximum RMS Voltage V
RMS
140 280 420 560 910 V
Maximum DC Blocking Volt age V
DC
200 400 600 800 1300 V
Maximum Average For ward Current
0.375"(9. 5mm) Lead Lengt h Ta = 50 °C
Peak Forwar d Surge Current
8.3ms Singl e half sine wave Superimposed
on rated load ( JEDEC Method)
Maximum Forwar d Vol t age at I
F
= 3.0 Amps. V
F
1.1 V
Maximum DC Reverse Current Ta = 25 °CI
R
20 μA
at rated DC Blocking Voltage Ta = 100 °CI
R(H)
50 μA
Typical Junct ion Capacitance (Note1) C
J
50 pF
Typical Thermal Resistance (Note2) R
θ
JA 18 °C/W
Juncti on Tem peratur e Range T
J
- 65 t o + 175 °C
Storage Temperature Range T
STG
- 65 t o + 175 °C
Notes :
(1) Measured at 1.0 MHz and applied reverse voltage of 4.0V
DC
(2) Thermal resistance from Junction to Ambient at 0.375" (9.5mm) Lead Lengths, P.C. Board Mounted.
Page 1 of 2 Rev. 03: O ct ober 8, 2012
I
FSM
100 A
RATING
I
F
3.0 A
0.208
(5.30)
DO - 201AD
0.374 (9.50)
0.283 (7.20)
0.050 (1.28)
0.048 (1.22)
Dim e ns ions in inc he s a nd ( m illim e te r s )
1.00 (25.4)
MIN.
1.00 (25.4)
MIN.
IATF 0113686
SGS TH07/1033
TH09/2479
TH97/2478
www.eicsemi.com
RATING AND CHARACTERISTIC CURVES ( BY251 - BY255 )
FIG.1 - DERATING CURVE FOR OUTPUT FIG.2 - MAXIMUM NON-REPETITIVE PEAK
RECTIFIED CU RRE NT FO RWARD SURGE CURRENT
0 25 50 75 100 125 150 175 1 2 4 6 10 20 40 60 100
AMBIENT TEMPERATURE, ( °C) NUM BER OF CY CL ES AT 60Hz
FIG.3 - TYPICAL FORWARD CHARACTERISTICS FIG 4 . - TYPICAL JUNCTION CAPACITANCE
FIG. 5 - TYPICAL REVERSE CHARACTERISTICS
Page 2 of 2 Rev. 03: O ct ober 8, 2012
2.4
1.8
1.2
0.6
3.0
10
1.0
80
0
100
0
60
40
20
10
80
1.0
0.01
100
0.1
100 140
0
20 40 60 120
PERCENT OF RATED REVERSE
VOLTAG E, (%)
PEAK FORWARD SURGE
CURRENT, AMPERE S
AVERAGE FORWARD OUTPUT
CURRENT, AMPERE S
FORWARD CURRENT, AM P E RE S
REVERSE CURRENT,
MICROAMPERES
Ta = 25 °C
Ta = 100 °C
TJ= 25 °C
Ta = 25 °C
Pulse Width = 300 μs
2% Duty Cycle
0.1
100
10
1
50
5
TJ= 25 °C
JUNCTION CAPACITANCE, (pF)
REVERSE VOLT AGE, VO LTS
124
10 20 40 100
00.2
0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
FORWARD VOLTAGE, VOLTS
0.01
NON-REPETITIVE
IATF 0113686
SGS TH07/1033
TH09/2479
TH97/2478
www.eicsemi.com