HIGH EFFICIENCY RECTIFIER VOLTAGE RANGE 5 to CURRENT 2. Amperes HER21 THRU HER28 FEATURES * Low power loss,high efficiency * Low leakage * Low forward voltage drop * High current capability * High speed switching * High reliability * High current surge DO-15 MECHANICAL DATA * Epoxy: Device has UL flammability classification 94V-O * Case: Molded plastic * Lead: MIL-STD-22E method 28C guaranteed * Mounting position: Any * Weight:.4 gram 1. (25.4) MIN..3 (7.6).23 (5.8).34 (.9).28 (.7) DIA..14 (3.6).4 (2.6) DIA. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 o C ambient temperature unless otherwise specified. resistive or inductive load. 1. (25.4) MIN. Dimensions in inches and (millimeters) MAXIMUM RATINGS (@ TA=25 O C unless otherwise noted) RATINGS SYMBOL HER21 HER22 HER23 HER24 HER25 HER26 HER27 HER28 Maximum Recurrent Peak Reverse Voltage V RRM 5 2 3 4 6 8 Maximum RMS Voltage V RMS 35 7 14 2 28 42 56 7 Maximum DC Blocking Voltage V DC 5 2 3 4 6 8 Maximum Average Forward Rectified Current at T A = 5 O C I O 2. Peak Forward Surge Current 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) I FSM 6 Typical Current Squared Time I 2 T 14.9 Typical Thermal Resistance (Note 1) R JL Typical Thermal Resistance (Note 1) R JC 15 Typical Thermal Resistance (Note 1) R JA 4 Typical Junction Capacitance (Note 2) C J 3 2 Operating Temperature Range T J 15 Storage Temperature Range T STG -55 to + 15 UNITS Amps Amps A 2 S C/W C/W C/W pf C C ELECTRICAL CHARACTERISTICS (@TA=25 O C unless otherwise noted) CHARACTERISTICS SYMBOL HER21 HER22 HER23 HER24 HER25 HER26 HER27 HER28 UNITS Maximum Instantaneous Forward Voltage at 2.A DC V F 1. 1.3 1.6 Maximum Average Reverse Current @T A = 25 o C IR.5 A at Rated DC Blocking Voltage @T A = o C 65 A Maximum Reverse Recovery Time (Note 4) trr 5 75 nsec NOTES : 1. Thermal Resistance : At 9.5mm lead length,pcb mounted. 2. Measured at 1 MHz and applied reverse voltage of 4. volts. 3. Fully ROHS compliant, % Sn plating (Pb-free). 4. Test Conditions: I F=.5A, I R= -1.A, I RR= -.25A. 5. Available in Halogen-free epoxy by adding suffix -HF after the part nbr. 217-4 REV:B
RATING AND CHARACTERISTICS CURVES ( HER21 THRU HER28 ) 5 NONINDUCTIVE NONINDUCTIVE +.5A trr ( + ) 25 Vdc (approx) ( - ) D.U.T 1 NON- INDUCTIVE OSCILLOSCOPE (NOTE 1) ( - ) PULSE GENERATOR (NOTE 2) ( + ) -.25A NOTES: 1 Rise Time = 7ns max. Input Impedance = 1 megohm. 22pF. 2. Rise Time = ns max. Source Impedance = 5 ohms. FIG.1 TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC -1.A 1cm SET TIME BASE FOR 2/1 ns/cm AVERAGE FORWARD CURRENT, (A) 2. 1.6 1.2.8.4 Single Phase Half Wave 6Hz Resistive or Inductive Load 25 5 75 125 15 175 INSTANTANEOUS REVERSE CURRENT, (ua) 1..1 T A = O C T A = 75 O C T A = 25 O C 2 4 6 8 12 14 AMBIENT TEMPERATURE, ( O C) PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) FIG.2 TYPICAL FORWARD CURRENT DERATING CURVE FIG.3 MAXIMUM REVERSE CHARACTERISTICS
RATING AND CHARACTERISTICS CURVES ( HER21 THRU HER28 ) INSTANTANEOUS FORWARD CURRENT, (A) 2 3. 1. T J = 25 O C HER26~HER28.3 HER24~HER25.1 HER21~HER23.3 Pulse Width=3uS 1% Duty Cycle.1.5 1. 1.5 2. 2.5 3. 3.5 PEAK FORWARD SURGE CURRENT, (A) 2 15 125 5 3 2 1 8.3ms Single Half Sine-Wave (JEDED Method) 5 5 INSTANTANEOUS FORWARD VOLTAGE,, (V) FIG.4 MAXIMUM INSTANTANEOUS FORWARD CHARACTERISTICS NUMBER OF CYCLES AT 6Hz FIG.5 MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT JUNCTION CAPACITANCE, (pf) 2 6 4 2 6 4 2 HER21~HER25 HER26~HER28 T J = 25 O C 1.1.2.4 1. 2 4 2 4 REVERSE VOLTAGE, (V) FIG.6 TYPICAL JUNCTION CAPACITANCE
THE MARKING OF HER2X Marking Description: Cathode band Logo Part No. V X X HER2X Month Code Year Code
Marking Description Rectron Logo Part No. V Y M H E R 2 X Cathode Band Year code: (Y:Last digit of year) Month code: (M:~9,O,N,D) Voltage-code 1-------5V 5------4V 2-------V 6-------6V 3-------2V 7-------8V 4-------3V 8-------V
PACKAGING OF DIODE AND BRIDGE RECTIFIERS BULK PACK PACKAGE PACKING CODE EA PER BOX INNER BOX SIZE (mm) CARTON SIZE (mm) EA PER CARTON GROSS WEIGHT(Kg) DO-15 eg(type):her28-b -B 5 194*84*21 415*22*255 25, 12.74 REEL PACK PACKAGE PACKING CODE AMMO PACK EA PER REEL TAPE SPACE (mm) REEL DIA CARTON SIZE (mm) (mm) EA PER CARTON GROSS WEIGHT(Kg) DO-15 -T 4, 4, 5. 52 33 355*35*335 16,.5 eg(type):her28-t EA PER COMPONENT INNER SPACE BOX (mm) PACKAGE PACKING CODE REEL ( EA ) COMPONENT TAPE SPACE BOX SIZE CARTON SPACE(mm) (mm) (mm) SIZE(mm) CARTON ( EA ) GROSS WEIGHT (Kg) DO-15 -F 1,5 5. 52 255*73* 4*268*225 15, 8.8 eg(type):her28-f
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