BY251 THRU BY255

MEDIUM CURRENT PLASTIC RECTIFIER

VOLTAGE - 200 to 1300 Volts

CURRENT - 3.0 Amperes

FEATURES

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Exce High surge current capability

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Plastic package has Underwriters Laboratory

Flammability Classification 94V-O

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Low leakage

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Void-free molded in DO-201AD plastic package

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with no thermal runaway

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eds environmental standards of MIL-S-19500/228

MECHANICAL DATA

Case: JEDEC DO-201AD Molded plastic

Terminals: Plated axial leads, solderable per MIL-STD-750,

Method 2026

Polarity: Color band denotes cathode

Mounting Position: Any

Weight: 0.04 ounce, 1.1 gram

MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS

Ratings at 25 ¢J ambient temperature unless otherwise specified.

60 Hz, resistive or inductive load.

For capacitive load, derate current by 20%.

SYMBOLS

BY251

BY252

BY253

BY254

BY255

UNITS

Maximum Recurrent Peak Reverse Voltage

200

400

600

800

1300

Volts

Maximum RMS Voltage

140

280

420

560

910

Volts

Maximum DC Blocking Voltage

200

400

600

800

1300

Volts

Maximum Average Forward Rectified

Current .375"(9.5mm) Lead Length at

3.0

Amps

Peak Forward Surge Current 8.3ms single

half sine-wave superimposed on rated load

(JEDEC method)

100.0

Amps

at 3.0A

1.1

1.0

Volts

Volts

5.0

1000

£g A

£g A

40

Typical Reverse Recovery Time (Note 3)

2.5

£g A

Typical Thermal Resistance (Note 1)

R £KJA

15.0

¢J /W

Operating Junction Temperature Range

-50 to +150

¢J

Storage Temperature Range

-50 to +150

¢J

NOTES:

1.

Thermal Resistance From Junction to applied at Ambient 0.375"(9.5mm) lead length P.C.Board mounted.

2.

Measured at 1 MHz and applied reverse voltage of 4.0 volts.

3.

DO-201AD