DR251 PFS | Alldatasheet
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Technical content
VOLTAGE RANGE 100 to 400 Volts DR251 THRU DR256 DRS251 THRU DRS256 CURRENT 25.0 Amperes TECHNICAL SPECIFICATION：
FEATURES
- Low Leakage
- Low forward voltage drop
- High current capability
- High forward surge current capacity
- Glass passivated chip MECHANICAL DATA
- Technology: vacuum soldered
- Case: Copper case
- Polarity: As marked of case bottom
- Lead: Plated Ni lead, solderable per MIL-STD-202E method 208C
- Weight: 0.032 ounces, 0.9 grams (DRS) 0.035 ounces, 1.0 grams (DR) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
- Ratings at 25℃ ambient temperature unless otherwise specified
- Single Phase, half wave, 60HZ, resistive or inductive load
- For capacitive load derate current by 20% SYMBOLS DR251 DRS251 DR252 DRS252 DR253 DRS253 DR254 DRS254 DR256 DRS256 UNIT Maximum Repetitive Peak Reverse Voltage V RRM 100 200 300 400 600 Volts Maximum RMS Voltage V RMS 70 140 210 280 420 Volts Maximum DC Blocking Voltage V DC 100 200 300 400 600 Volts Maximum Average Forward Rectified Current, At Tc=105℃ IO 25 Amps Peak Forward Surge Current 3.3mS single half sine wave superimposed on Rated load (JEDEC method) IFSM 400 Amps Rating for fusing (t＜8.3ms) I 2t 664 A 2S Maximum instantaneous Forward Voltage at 100A VF 1.10 Volts
5.0 Maximum DC Reverse Current at Rated TA=25℃
DC Blocking Voltage TA=100℃ IR 300 UA Typical Thermal Resistance R θJC 1.0 ℃/W Operating and Storage Temperature Range T J,TSTG (-65 to +175) ℃ Notes: 1. Enough heatsink must be considered in application. DRS-35 Dimensions in inches and (millimeters) DR-35 1.5±0.05 7.0±0.2 8.4±0.2 2.2 Positive: 19.0±0.5 Negative: 23.0±0.5Negative: 23.0±0.5 Positive: 19.0±0.5 2.2 9.5±0.2 8.4±0.2 1.5±0.05 Web Site: WWW.PS-PFS.COM
VOLTAGE RANGE 100 to 400 Volts DR251 THRU DR256 DRS251 THRU DRS256 CURRENT 25.0 Amperes RATINGS AND CHARACTERISTIC CURVES F1G.2 MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT F1G.1 TYPICAL FORWARD CURRENT DERATING GURVE
1 Cycle
CURRENT,(A) 8.3ms Single Half Sine-Wave (JEDEC Method) Tj=Tj max AVERAGE FORWARD CURRENT, (A) AMBIENT TEMPERATURE, ()℃ 125100 150 1757550250 Single Phase Half Wave 60Hz Resistive or Inductive Load 0.375″(9.5mm) Lead Length 100 400 200 300 600 500 F1G.3 TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT, (A) INSTANTANEOUS FORWARD VOLTAGE,(V) 1000 100 1.0 0.1 T1=25℃ PULSE WIDTH=300μS 1%DUTY CYCLE 504030200 SQUARE WAVE DC AVERAGE POWER DISSIPATION (W) AVERAGE FORWARD CURRENT, (A) F1G.4 FORWARD ROWER DISSIPATION DR251 THRU DR256 DRS251 THRU DRS256 Web Site: WWW.PS-PFS.COM