Document
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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Advance Information Overvoltage Transient Suppressors
. . . 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. • • • • Avalanche Voltage 24 to 32 Volts High Power Capability Economical Increased Capacity by Parallel Operation
MR2535L MR2535S
MEDIUM CURRENT OVERVOLTAGE TRANSIENT SUPPRESSORS
Mechanical Characteristics • Case: Epoxy, Molded • Weight: 2.5 grams (approximately) • Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable • Lead Temperature for Soldering Purposes: 260°C Max. for 10 Seconds • Polarity: cathode polarity band • MR2535L shipped 1000 units per plastic bag. Available Tape and Reeled, 800 units per reel by adding a “RL” suffix to the part number. • MR2535S shipped pocket tape and reeled, 500 per 13″ reel • Marking: MR2535L, MR2535S MAXIMUM RATINGS
Rating DC Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Repetitive Peak Reverse Surge Current (Time Constant = 10 ms, Duty Cycle ≤ 1%, TC = 25°C) (See Figure 1) Average Rectified Forward Current (Single Phase, Resistive Load, 60 Hz, TC = 150°C) Non–Repetitive Peak Surge Current Surge Supplied at Rated Load Conditions Halfwave, Single Phase Operating and Storage Junction Temperature Range
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CASE 194–04
CATHODE
CASE 421A–01
Symbol VRRM VRWM VR IRSM IO IFSM
Value 20
Unit Volts
110 35 600
Amps Amps Amps
TJ, Tstg
–65 to +175
°C
THERMAL CHARACTERISTICS
Characteristic Thermal Resistance, Junction to Lead @ Both Leads to Heat Sink, Equal Length Thermal Resistance Junction to Case *Typical
This document contains information on a new product. Specifications and information herein are subject to change without notice.
Lead Length 1/4″ 3/8″ 1/2″
Symbol RθJL
Max 7.5 10 13 0.8*
Unit °C/W
RθJC
°C/W
Rev 2
Device ©Rectifier Motorola, Inc. 1996 Data
1
MR2535L MR2535S
ELECTRICAL CHARACTERISTICS
Characteristic Instantaneous Forward Voltage (1) (iF = 100 Amps, TC = 25°C) Reverse Current (VR = 20 Vdc, TC = 25°C) Breakdown Voltage (1) (IR = 100 mAdc, TC = 25°C) Breakdown Voltage (1) (IR = 90 Amp, TC = 150°C, PW = 80 µs) Breakdown Voltage Temperature Coefficient Forward Voltage Temperature Coefficient @ IF = 10 mA (1) Pulse Test: Pulse Width ≤ 300 µs, Duty Cycle ≤ 2%. *Typical Symbol vF IR V(BR) V(BR) V(BR)TC VFTC Min — — 24 — — — Max 1.1 200 32 40 0.096* 2* Unit Volts nAdc Volts Volts %/°C mV/°C
IRSM(EXP) IRSM(EXP) 2 10 20 30 40 (TIME IN ms) 50 60
Figure 1. Surge Current Characteristics
2
Rectifier Device Data
MR2535L MR2535S
PACKAGE DIMENSIONS
A D
1 NOTES: 1. CATHODE SYMBOL ON PACKAGE. DIM A .