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 3

Electrical Specifications

Electrical Characteristics (TA = 25° C unless otherwise noted)

SYMBOL

PARAMETER

MIN

TYP

MAX

UNITS

TEST CONDITIONS

Input Diode

VF

Forward Voltage

3C91C, 3C92C (TX)

3C91C, 3C92C (TX)

3N243, 3N244, 3N245 (TX)

3N243, 3N244, 3N245 (TX)

3N243, 3N244, 3N245 (TX)

3N262

3N262

3N262

-

-

0.8

1.0

0.7

0.8

1.0

0.7

-

-

-

-

-

-

-

-

1.2

1.5

1.3

1.5

1.2

1.5

1.7

1.3

V

IF = 2 mA

IF = 50 mA

IF = 10 mA

IF = 10 mA, TA = -55° C

IF = 10 mA, TA = -100° C

IF = 10 mA

IF = 10 mA, TA = -55° C

IF = 10 mA, TA = -100° C

VR

Reverse Voltage

3C91C, 3C92C (TX)

7

-

-

V

IR = 0.1 mA

IR

Reverse Current

3C91C, 3C92C (TX)

3N243, 3N244, 3N245 (TX)

3N262

-

-

-

-

-

-

1

100

100

µA

VR= 3.0 V

VR= 2.0 V

VR= 2.0 V

CIN

Diode Capacitance

3C91C, 3C92C (TX)

-

25

-

pF

V = 0, f = 1 MHz

Output Phototransistor

V(BR)CEO

Collector-Emitter Breakdown Voltage

3C91C, 3C92C (TX)

3N243, 3N244, 3N245 (TX)

3N262

50

30

40

-

-

-

-

-

-

V

IC = 10.0 mA

IC = 1.0 mA

IC = 1.0 mA

V(BR)ECO

Emitter-Collector Breakdown Voltage

3C91C, 3C92C (TX)

3N243, 3N244, 3N245 (TX)

3N262

7

5

7

-

-

-

-

-

-

V

IC = 10 µA

IE = 100 µA

IE = 100 µA

ICEO

Collector Dark Current

3C91C, 3C92C (TX)

3C91C, 3C92C (TX)

3N243, 3N244, 3N245 (TX)

3N243, 3N244, 3N245 (TX)

3N262

3N262

-

-

-

-

-

-

-

-

-

-

-

-

10

50

100

100

100

100

nA

nA

nA

µA

µA

µA

VCE = 5 V

VCE = 50 V

VCE = 10.0 V

VCE = 10.0 V, TA = 100° C

VCE = 10.0 V

VCE = 10.0 V, TA = 100° C