DeLOCK RF/EMI Interference Suppression Filter D-Sub 25 pin male to female low-pass filter capacitive

The DeLOCK RF/EMI interference suppression filter is a D-Sub 25‑pin male-to-female adapter with integrated low-pass capacitive broadband filters designed to reduce radio frequency and electromagnetic interference on D-Sub interfaces. It is intended for use with serial interfaces such as RS-232 and RS-485 as well as digital and analogue I/O lines. Connector contacts are gold-plated for reliable conductivity and durability. The adapter is available in green and silver colours.

Advantages

The adapter integrates 15 low-pass broadband filters to provide RF/EMI shielding for the D-Sub interface, minimising signal noise and interruptions. Its male-to-female D-Sub 25 pin configuration preserves pinout compatibility while improving signal stability. Gold-plated contacts enhance conductivity and resist corrosion. Compact adapter design allows inline filtering without additional circuitry.

Suitable for

• Serial RS-232 and RS-485 connections
• Digital I/O lines and fieldbus interfaces
• Analogue signal lines requiring EMI suppression
• Environments where inline RF/EMI filtering is needed

Key specifications

• Connector 1: D-Sub 25 pin (male)
• Connector 2: D-Sub 25 pin (female)
• Filter type: Low-pass capacitive broadband (15 filters integrated)
• Contact plating: Gold-plated contacts
• Colours: Green, Silver
• Brand: DELOCK
• MPN: 66479
• EAN: 4043619664795

How to use

Connect the male D-Sub 25 pin end of the adapter to the device or cable with the corresponding female D-Sub 25 socket and attach the female end to the receiving connector. Ensure secure mechanical fastening of the D-Sub screws to maintain good electrical contact. Use the adapter inline between equipment that requires RF/EMI suppression; no additional configuration is required.

Recommendations

Use the adapter in applications where EMI/RF noise affects signal integrity; select the appropriate D-Sub pin count if a different version (9, 15, 25 or 37 pins) is required. For best results, maintain proper cable shielding and grounding practices in the overall installation.