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BY251GP thru BY255GP
New Product
Vishay Semiconductors
formerly General Semiconductor
Reverse Voltage 200 to 1300V Forward Current 3.0A
Glass Passivated Junction Plastic Rectifiers
DO-201AD
1.0 (25.4) Min. 0.210 (5.3) 0.190 (4.8) Dia.
(R)
ed* tentFeatures Pa
0.375 (9.5) 0.285 (7.2)
* Plastic package has Underwriters Laboratories Flammability Classification 94V-0 * High temperature metallurgically bonded construction * Cavity-free glass passivated junction * Capable of meeting environmental standards of MIL-S-19500 * 3.0 Ampere operation at TA=55C with no thermal runaway * Typical IR less than 0.1A * High temperature soldering guaranteed: 350C/10 seconds, 0.375" (9.5mm) lead length, 5 lbs. (2.3kg) tension
Mechanical Data
1.0 (25.4) Min. 0.052 (1.32) 0.048 (1.22) Dia.
Dimensions in inches and (millimeters)
*Glass-plastic encapsulation technique is covered by
Patent No. 3,996,602 and brazed-lead assembly by Patent No. 3,930,306
Case: JEDEC DO-201AD, molded plastic over glass body Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.04 oz., 1.12 g Packaging Codes/Options: 1 / Bulk - 1.5K per container, 15K/box 4 / 1.4K per 13" reel, 5.6K/box 23 / 1K per ammo mag., 9K/box
Ratings at 25C ambient temperature unless otherwise specified.
Maximum Ratings & Thermal Characteristics
Parameter Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward rectified current 10mm lead length at TA = 55C Peak forward surge current 10ms single half sine-wave superimposed on rated load (JEDEC Method) Maximum full load reverse current, full cycle average 10mm lead length at TA = 55C Typical thermal resistance(1) Operating junction and storage temperature range
Symbol BY251GP BY252GP BY253GP BY254GP BY255GP VRRM VRMS VDC IF(AV) IFSM IR(AV) RJA RJL TJ, TSTG 200 140 200 400 280 400 600 420 600 3.0 100 100 20 10 -65 to +175 800 560 800 1300 910 1300
Unit V V V A A A C/W C
Electrical Characteristics
Ratings at 25C ambient temperature unless otherwise specified.
Maximum instantaneous forward voltage at 3.0A Maximum reverse current at rated DC blocking voltage TA = 25C Typical reverse recovery time IF = 0.5A, IR = 1.0V, Irr = 0.25A Typical junction capacitance at 4.0V, 1MHz
VF IR trr CJ
1.1 5.0 3.0 40
V A s pF
Note: (1) Thermal resistance from junction to ambient and from junction to lead at 0.375" (9.5mm) lead length, P.C.B. mounted
Document Number 88541 17-Dec-02
www.vishay.com 1
BY251GP thru BY255GP
Vishay Semiconductors
formerly General Semiconductor
Ratings and Characteristic Curves (TA = 25C unless otherwise noted)
Fig 2 - Maximum Non-repetitive Peak Forward Surge Current
200
Peak Forward Surge Current (A) 60 Hz Resistive or Inductive Load TJ = TJ max 10ms Single Half Sine-wave (JEDEC Method)
Fig 1 - Forward Current Derating Curve
4.0
Average Forward Rectified Current (A)
3.0
100
2.0
1.0
10mm lead length
0 0 25 50 75 100 125 Ambient Temperature, C 150 175
10 1 10 Number of Cycles at 60Hz 100
100
Instantaneous Forward Current (A) TJ = 25C Pulse width = 300s 1% Duty Cycle
Instantaneous Reverse Leakage Current ( A)
Fig 3 - Typical Instantaneous Forward Characteristics
Fig 2 - Maximum Non-repetitive Peak Forward Surge Current
10
TJ = 125C
10
1
TJ = 75C
1
0.1
TJ = 25C
0.1 0.6
0.01 0 40 80 60 100 20 Percent of Rated Peak Reverse Voltage (%)
1.2 0.7 0.8 0.9 1.0 1.1 Instantaneous Forward Voltage (V)
1.3
Fig 5 - Typical Junction Capacitance
100
TJ = 25C f = 1.0 MHz Vsig = 50mVp-p
Junction Capacitance (pF)
10 1 10 Reverse Voltage (V) 100
www.vishay.com 2
Document Number 88541 17-Dec-02

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