TE Connectivity 1SNA020263R0200 EM4D is a Series 20000 / Interfast open 4-way pass-through diode module with screw-clamp connections for industrial signal isolation, decoupling and control circuit interfacing.
£37.88
The TE Connectivity / Entrelec EM4D, part number 1SNA020263R0200, is an industrial 4-way diode module designed for signal isolation, steering and interface functions within electrical control and automation systems. Part of the established Entrelec Series 20000 / Interfast electronic module range, it combines four discrete diodes with practical screw-clamp connections in an open modular format.
The EM4D is configured with four pass-through diodes, providing independent diode paths rather than a common-anode or common-cathode arrangement. This configuration makes the module useful for applications such as signal decoupling, logic isolation, reverse-current blocking and diode steering between field devices and control-system inputs or outputs.
With a compact 25.4 mm module section, the EM4D provides four diode circuits while conserving valuable panel space. Its modular construction and screw-clamp terminal technology make it well suited to industrial control cabinets where reliable connections, straightforward troubleshooting and organised interface wiring are required.
Diodes are commonly used in industrial control circuits to permit current flow in one direction while restricting reverse current. This characteristic allows them to perform important functions such as signal isolation, decoupling, steering and protection between interconnected control devices.
The EM4D incorporates four pass-through diode circuits into a dedicated Series 20000 module, avoiding the need to mount and connect individual loose diodes. This provides a cleaner and more serviceable panel installation while retaining convenient screw-terminal access for field and control wiring.
| Manufacturer | TE Connectivity / Entrelec |
|---|---|
| Series | Series 20000 / Interfast |
| Model | EM4D |
| Part number | 1SNA020263R0200 |
| Product type | Diode module / diode board |
| Diode configuration | Pass-through diodes |
| Number of diodes | 4 |
| Module section | 25.4 mm |
| Connection technology | Screw clamp |
| Construction | Open electronic module |
| Application | Industrial signal and control circuit interfacing |
| Pack quantity | 1 |
| Barcode | 3472590202633 |
The 1SNA020263R0200 is a 4-way diode module used for functions such as signal isolation, decoupling and diode steering in industrial control and automation circuits.
TE Connectivity / Entrelec part number 1SNA020263R0200 is the EM4D Series 20000 diode module.
The EM4D incorporates four pass-through diodes, providing four diode circuits within the module.
The EM4D is the four-diode version of the Series 20000 open diode module range and has a 25.4 mm module section.
The EM4D is typically used inside industrial control and automation panels for PLC interfacing, signal decoupling, diode steering and other applications requiring integrated diode circuits.
TE Connectivity / Entrelec Series 20000 electronic modules provide practical industrial interface solutions, with the EM4D integrating four pass-through diodes into a compact screw-connected module for organised and serviceable control-panel wiring.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...