Hi-Reliability Optically Coupled Isolator

3C91C, 3C92C (TX), 3N243, 3N244, 3N245

(TX), 3N262

© TT electronics plc

General Note

TT Electronics reserves the right to make changes in product specification without

notice or liability. All information is subject to TT Electronics’ own data and is

considered accurate at time of going to print.

TT Electronics | OPTEK Technology

2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200

www.ttelectronics.com | sensors@ttelectronics.com

Rev B 02/2020 Page 2

Absolute Maximum Ratings (TA = 25° C unless otherwise noted)

Operating Temperature Range

-55

o C to +125o C

Storage Temperature Range

-65

o C to +150o C

Input to Output Isolation Voltage

± 1 kVDC

(1)

Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 seconds with soldering iron]

260° C

(2)

Input Diode

Forward DC Current

40 mA

Reverse Voltage

2.0 V

Power Dissipation

60 mW

(3)

Output Phototransistor

Continuous Collector Current

30 mA

Collector-Emitter Voltage

30 V

Emitter-Collector Voltage

5.0 V

Power Dissipation

200 mW

(4)

Electrical Specifications

Notes:

1. Measured with input leads shorted together and output leads shorted together.

2. RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.

3. Derate linearly 2.0 mW/° C above 25° C.

4. Derate linearly 0.60 mW/° C above 65° C.

IC(ON) vs TA

0.0

0.5

1.0

1.5

2.0

2.5

-55

-35

-15

+5

+25

+45

+65

+85

+105

+125

+135

TA (°C)

IF = 20mA

IF = 50mA

Normalized @ 20 mA and 25° C