RL251 THRU RL257 21201 Itasca St. Chatsworth, CA 91311 Phone: (818) 701-4933 Fax: (818) 701-4939 Features * * * * 2.5 Amp Silicon Rectifier 50 to 1000 Volts Low Cost Low Leakage Low Forward Voltage Drop High Current Capability R-3 Maximum Ratings * * * Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C Typical Thermal Resistance (RJA) 35C/W Microsemi Part Number RL251 RL252 RL253 RL254 RL255 RL256 RL257 Maximum Recurrent Peak Reverse Voltage 50V 100V 200V 400V 600V 800V 1000V D Maximum RMS Voltage Maximum DC Blocking Voltage 35V 70V 140V 280V 420V 560V 700V 50V 100V 200V 400V 600V 800V 1000V A Cathode Mark B D Electrical Characteristics @ 25C Unless Otherwise Specified Average Forward IF(AV) 2.5 A TA = 75C Current Peak Forward Surge IFSM 150A 8.3ms, half sine Current IFM = 2.5A; Maximum 1.0V Instantaneous VF TA = 25C Forward Voltage Maximum DC Reverse Current At IR 5.0A TA = 25C Rated DC Blocking 50A TA = 100C Voltage Typical Junction CJ 35pF Measured at Capacitance 1.0MHz, VR=4.0V *Pulse Test: Pulse Width 300sec, Duty Cycle 1% C DIMENSIONS DIM A B C D INCHES MIN ----.040 1.000 MAX .160 .160 .042 --- MM MIN ----1.01 25.40 MAX 4.10 4.10 1.07 --- NOTE RL251 thru RL257 Figure 1 Typical Forward Characteristics 20 Figure 2 Forward Derating Curve 10 3.0 6 4 2.5 2 25C Amps 2.0 1 .6 1.5 Amps .4 1.0 .2 .5 .1 Single Phase, Half Wave 60Hz Resistive or Inductive Load .06 0 .04 0 50 75 100 125 150 175 C .02 Average Forward Rectified Current - Amperes versus Ambient Temperature - C .01 .3 .1 .5 .7 1.1 .9 Volts Instantaneous Forward Current - Amperes versus Instantaneous Forward Voltage - Volts Figure 3 Junction Capacitance 100 60 40 20 pF TJ=25C 10 6 4 2 1 .1 .2 .4 1 Volts 2 4 10 20 40 Junction Capacitance - pF versus Reverse Voltage - Volts 100 200 400 1000 RL251 thru RL257 Figure 4 Typical Reverse Characteristics Figure 5 Peak Forward Surge Current 10 180 6 150 4 120 2 90 TJ=100C 1 Amps .6 60 .4 30 .2 0 Amps .1 2 4 6 8 10 20 40 60 80 100 Cycles .06 Peak Forward Surge Current - Amperes versus Number Of Cycles At 60Hz - Cycles .04 TJ=25C .02 .0 1 .00 6 .00 4 .002 .001 20 1 40 60 80 100 120 140 Volts Instantaneous Reverse Current - Amps versus Percent Of Rated Peak Reverse Voltage - Volts