Overvoltage Transient Suppressor Designed for applications requiring a low voltage rectifier with reverse avalanche characteristics for use as reverse power transient suppressors. Developed to suppress transients in the automotive system, these devices operate in the forward mode as standard rectifiers or reverse mode as power avalanche rectifier and will protect electronic equipment from overvoltage conditions. High Power Capability Economical Increased Capacity by Parallel Operation Mechanical Characteristics Case: Epoxy, Molded Weight: 2. Grams (Approximately) Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable Maximum Lead Temperature for Soldering Purposes: 3 C 3/8 from Case for Seconds at lbs. Tension Polarity: Indicated by Diode Symbol or Cathode Band Marking: MAXIMUM RATINGS (T J = C unless otherwise noted) Rating Symbol Value Unit DC Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Repetitive Peak Reverse Surge Current (Time Constant = ms, Duty Cycle %, T C = C) Peak Reverse Power (Time Constant = ms, Duty Cycle %, T C = C) Average Rectified Forward Current (Single Phase, Resistive Load, 6 Hz, T C = C) (See Figure 4) Non-Repetitive Peak Surge Current Surge Supplied at Rated Load Conditions Halfwave, Single Phase Operating and Storage Junction Temperature Range V RRM V RWM V R 23 Volts I RSM 8 Amps P RSM Watts I O 6. Amps I FSM 4 Amps T J, T stg -6 to +7 C OVERVOLTAGE TRANSIENT SUPPRESSOR 24-32 VOLTS AXIAL LEAD BUTTON CASE 94 STYLE LYYWW = Device Code L = Location Code YY = Year WW = Work Week ORDERING INFORMATION Device Package Shipping RL Axial Lead Button Axial Lead Button /Box 8/Reel Semiconductor Components Industries, LLC, 2 December, 2 - Rev. Publication Order Number: /D
THERMAL CHARACTERISTICS Characteristic Lead Length Symbol Max Unit Thermal Resistance, Junction to Lead, Both Leads to Heat Sink with Equal Length 6. mm mm mm R θjl 7. Thermal Resistance Junction to Case - R θjc. C/W **Typical ELECTRICAL CHARACTERISTICS (T J = C unless otherwise noted) Characteristic Symbol Min Max Unit Instantaneous Forward Voltage (Note ) (I F = Amps, T C = C) V F -. Volts Instantaneous Forward Voltage (Note ) (I F = 6. Amps, T C = C) V F -.9 Volts Reverse Current (V R = Vdc, T C = C) I R - nadc Reverse Current (V R = Vdc, T C = C) I R - 3 nadc Breakdown Voltage (Note ) (I R = madc, T C = C) V (BR) 24 32 Volts Breakdown Voltage (Note ) (I R = 9 Amp, T C = C, PW = 8 µs) V (BR) - 4 Volts Dynamic Resistance (I R = ma, T J = C, f =. khz) R Z -. Dynamic Resistance (I R = 4 ma, T J = C) R Z -. Breakdown Voltage Temperature Coefficient V (BR)TC -.9* %/ C Forward Voltage Temperature Coefficient @ I F = ma V FTC - -2* mv/ C. Pulse Test: Pulse Width 3 µs, Duty Cycle 2%. **Typical C/W 2
, INSTANTANEOUS FORWARD CURRENT (A). T J = C 6 7 C 8 C 9, REVERSE CURRENT (NORMALIZED) R I 4 3 2 V R = V 7 7 F I V F, INSTANTANEOUS FORWARD VOLTAGE (mv) T J, JUNCTION TEMPERATURE ( C) Figure. Forward Voltage Figure 2. Normalized Reverse Current C, CAPACITANCE (pf) 4 3 3, AVERAGE FORWARD CURRENT (A) mm mm Both leads to heatsink with equal length I F(peak) /I F(avg) = L = 6. mm F(avg) I 4 6 8 4 6 8 V R, REVERSE VOLTAGE (V) T L, LEAD TEMPERATURE ( C) Figure 3. Typical Capacitance Figure 4. Maximum Current Ratings r(t), TRANSIENT THERMAL RESISTANCE (NORMALIZED) - L = 6. mm, both leads to heatsink (equal length) -2-3 -2-2 t, TIME (S) LEAD LENGTH (mm) Figure. Thermal Response JL, THERMAL RESISTANCE JUNCTION TO LEAD ( C/W) R 4 3 3 Single to heatsink Maximum Figure 6. Steady State Thermal Resistance Maximum Typical Typical Both leads to heatsink (equal length) 3
RSM, PEAK REVERSE CURRENT (A) I T J = C, PEAK REVERSE POWER (W) RSM P T J = C t, TIME CONSTANT (ms) t, TIME CONSTANT (ms) Figure 7. Maximum Peak Reverse Current Figure 8. Maximum Peak Reverse Power RSM, PEAK REVERSE ENERGY (J) W T J = C t, TIME CONSTANT (ms) T L, LEAD TEMPERATURE ( C) Figure 9. Maximum Reverse Energy PEAK REVERSE POWER (W) 28 26 24 2 8 6 4 8 6 4 Time Constant = ms Time Constant = ms 7 Figure. Reverse Power Derating Z(Irsm) /V Z( ma) V..8.6.4.2..8.6.4.2. PW = 8 S, T L = C 3 4 6 7 8 9 I RSM, REPETITIVE PEAK REVERSE SURGE CURRENT (A) Figure. Typical Clamping Factor f, FREQUENCY (HERTZ) mm (Both leads to heat sink) - -2 mm (Both leads to heat sink) -3 TIME CONSTANT (ms) Figure 2. Maximum Load Dump Frequency 4
2 Ohms dl/dt Limitation H - V mf MR32L Figure 3. Load Dump Test Circuit 8 dl/dt < A/ s 6 (%) 4..2 t (%) t (%) t (37%) t, TIME (S).3 Figure 4. Load Dump Pulse Current.4. t (37%) = Time Constant t (%) =.7 t (37%) t (%) = 2.3 t (37%)
Notes 6
PACKAGE DIMENSIONS AXIAL LEAD BUTTON CASE 94-4 ISSUE F D A K NOTES:. CATHODE SYMBOL ON PACKAGE. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 8.43 8.69.332.342 B.94 6..234.246 D.27.3..3 E..6.99. B STYLE : PIN. CATHODE 2. ANODE K 2 7
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