SR840datasheet

Features

• High current capability, low VF

• Metal to silicon rectifier, majority carrier conduction • Low power loss, high efficiency

• Plastic package has UL flammability classification 94V-0 • Guard ring for transient protection • High surge capacity

• For use in low voltage, high frequency inverters free wheeling, and polarity protection applications

Mechanical Data

Case: Molded plastic, TO-220A

Epoxy: UL 94V-0 rate flame retardant

Terminals: Leads solderable per MIL-STD-202,

method 208 guaranteed

Polarity: As marked Mounting Position: Any

Absolute Maximum Ratings and Characteristics

Ratings at 25 OC ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%

Parameter SymbolsMaximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage

Maximum Average Forward Rectified Current Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method )

SR820

SR830

SR840 SR850 SR860Units

VRRM 20 30 40 50 60 V VRMS 14 21 28 35 42 V VDC 20 30 40 50 60 V I(AV) 8 A IFSM 150 A Maximum Forward Voltage at 8 A DC and 25 OC VF 0.55 Maximum Reverse Current at TC = 25 OC

Rated DC Blocking Voltage TC = 125 OC Typical Junction Capacitance 1) Typical Thermal Resistance 2) Operating Temperature Range Storage Temperature Range

1)2)

0.7 V mA

IR

0.5

50

CJ 700 RθJC Topr Tstg

- 55 to + 125

- 55 to + 150

3

460 pF O

C/W

O

- 55 to + 150 C C

O

Measured at 1 MHz and applied reverse voltage of 4 V.

Thermal Resistance from Junction to case per leg.

R SEMTECH ELECTRONICS LTD.

(Subsidiary of Semtech International Holdings Limited, a company

listed on the Stock Exchange, Stock Code: 724)

Dated : 06/05/2006 H

SR820 THRU SR860

R SEMTECH ELECTRONICS LTD.

(Subsidiary of Semtech International Holdings Limited, a company

listed on the Stock Exchange, Stock Code: 724)

Dated : 06/05/2006 H