TLP4176G(TP,M,F)
Toshiba
Solid State Relays - PCB Mount Package: 2.54SOP4
Active2,425 in stock
Overview
The TLP4176G is a normally closed (1-Form-B) solid state photorelay in a 4-pin SOP package. It utilizes a photo-coupled design to provide electrical isolation between input and output, capable of switching AC or DC loads up to 350V at 120mA.
Why Choose This Part
This photorelay offers high-voltage capability up to 350V in a compact 2.54mm pitch SOP package. As a solid state device, it eliminates mechanical wear and acoustic noise while providing reliable UL-recognized isolation.
Applications
Telecommunications Line Switching
Used in PBX, modems, and fax cards for hook switching and dial pulsing.
Measurement Instrumentation
Ideal for high-impedance signal switching and automated test equipment where mechanical relay bounce is undesirable.
Industrial Control Systems
Provides isolated control for status indicators and low-current alarm circuits.
Key Specifications
Circuit
SPST-NC (1 Form B)
Relay Type
Photo-Coupled Relay (Photorelay)
Output Type
AC, DC
Load Current
120 mA
Mounting Type
Surface Mount
Package / Case
4-SMD, Gull Wing
Voltage - Load
0 V ~ 350 V
Approval Agency
UL
Voltage - Input
1.15VDC
Termination Style
Gull Wing
Operating Temperature
-55degC ~ 125degC
Supplier Device Package
4-SOP
On-State Resistance (Max)
25 Ohms
Getting Started
To use this device, drive the input LED with a forward current typically around 5mA to 10mA, ensuring a current-limiting resistor is in series. Since this is a normally closed (1-Form-B) relay, the output will conduct when the LED is off and open when the LED is energized.
Also Consider
CPC1035N
IXYS Integrated Circuits
- A 1-Form-B relay in a smaller 4-pin SOP package with a slightly higher load voltage rating of 350V.
