DATA SHEET
www.onsemi.com
6-Pin General Purpose
Phototransistor
Optocouplers
PDIP6
CASE 646BX
6
6
1
1
4N25M, 4N26M, 4N27M,
4N28M, 4N35M, 4N36M,
4N37M
PDIP6
S SUFFIX
CASE 646BY
Description
The general purpose optocouplers consist of a gallium arsenide
infrared emitting diode driving a silicon phototransistor in a standard
plastic 6−pin dual−in−line package.
PDIP6
T SUFFIX
6
CASE 646BZ
1
Features
• Minimum Current Transfer Ratio at I = 10 mA, V = 10 V:
F
CE
♦ 10% for 4N27M and 4N28M
♦ 20% for 4N25M and 4N26M
MARKING DIAGRAM
♦ 100% for 4N35M and 4N36M and 4N37M
ON
• Safety and Regulatory Approvals:
4N25
VXYYQ
♦ UL1577, 4,170 VAC
for 1 Minute
RMS
♦ DIN−EN/IEC60747−5−5, 850 V Peak Working Insulation Voltage
Applications
ON
4N25
V
= Logo
• Power Supply Regulators
• Digital Logic Inputs
• Microprocessor Inputs
= Specific Device Code
= DIN EN/IEC60747−5−5 Option (only
appears on component ordered with
this option)
= One−Digit Year Code
= Digit Work Week
X
YY
Q
= Assembly Package Code
SCHEMATIC
ANODE 1
CATHODE 2
N/C 3
6
5
4
BASE
COLLECTOR
EMITTER
ORDERING INFORMATION
See detailed ordering and shipping information on page 8 of
this data sheet.
© Semiconductor Components Industries, LLC, 2005
1
Publication Order Number:
September, 2021 − Rev. 2
4N37M/D