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Ⅰ.Overview of product

3S7B_1215S3U is a 3W isolated through-hole DC-DC converter module from GAPTEC Electronic.It is designed for board-mount power applications that require stable voltage conversion and galvanic isolation.

Ⅱ.Core parameter

Category:Power Supplies - Board Mount,DC DC Converters

Mfr:GAPTEC Electronic

Series:3S7B_3U (3W)

Packaging:Tube

Part Status:Active

Type:Isolated Module

Voltage - Input (Min):10.8V

Voltage - Input (Max):13.2V

Current - Output (Max):200mA

Power (Watts):3 W

Voltage - Isolation:3 kV

Operating Temperature:-40°C ~ 85°C

Efficiency:90%

Mounting Type:Through Hole

Package / Case:7-SIP Module, 4 Leads

Size / Dimension:0.77" L x 0.28" W x 0.39" H (19.6mm x 7.0mm x 10.0mm)

Ⅲ.Main characteristics

High Isolation:It features 3kV input-to-output galvanic isolation, which effectively enhances system safety and improves noise immunity in complex circuits.

High Efficiency:With a conversion efficiency of up to 90%, the module reduces power loss significantly and minimizes heat generation during operation.

Compact Size:The small 7-SIP, 4-lead package saves valuable PCB space, making it suitable for dense and space-constrained designs.

Fixed Input:Optimized for a stable 12V nominal input, it ensures consistent performance in systems powered by 10.8V to 13.2V input voltage.

Easy Assembly:Through-hole mounting design allows for simple soldering and quick assembly, improving production efficiency.

Ⅳ.Application field

Industrial Controller:It is used in PLC I/O modules to provide isolated power, ensuring stable operation of control circuits in industrial environments.

Sensor Device:Powers 4-20mA current loop sensors in factory automation, enabling accurate signal transmission and power supply integration.

Test Equipment:Provides isolated voltage for portable data acquisition units, ensuring measurement accuracy by reducing interference.

Telecom Module:Used in low-power communication interface circuits, such as small-scale telecom transceivers, for stable isolated power supply.

Medical Device:Supplies auxiliary power for home-use monitoring equipment, such as blood pressure monitors,meeting safety isolation requirements.

Battery System:Enables isolated conversion in 12V battery-powered mobile devices, such as portable industrial detectors,ensuring safe power management.

Ⅴ.Summary

3S7B_1215S3U is a compact,high-efficiency 3W isolated DC-DC converter with 3kV isolation and a wide temperature range.It is an ideal choice for space-constrained industrial,sensor,and portable equipment requiring reliable isolated power conversion.