Attenuator EFB Elektronik 533680.8, 45 dB, SC connector, -20–75 °C, 6.3×28.6×10.5 mm

EFB Elektronik 533680.8 attenuator is a fiber‑optic inline component designed to reduce signal power by 45 dB. The metal-bodied attenuator features an SC connector interface and is specified for operation in temperatures from -20 °C to 75 °C. Its compact dimensions (6.3 mm wide, 28.6 mm deep, 10.5 mm high) make it suitable for use inside cable ducts, distribution panels and pre-assembled trunk cable installations.

Advantages

The attenuator provides a precise, fixed 45 dB attenuation level in a compact, rugged housing. With an SC connector it is compatible with standard single‑mode fiber deployments. Rated temperature limits and solid construction allow reliable performance in typical indoor and protected outdoor telecommunication environments.

Suitable for

• Signal level matching in single‑mode fiber links
• Insertion into pre‑assembled trunk cables and patch panels
• Use in telecom distribution points and cable ducts

Key specifications

• Model: EFB Elektronik 533680.8
• Attenuation: 45 dB (fixed)
• Connector: SC
• Temperature range: -20 °C to 75 °C
• Dimensions (W×D×H): 6.3 × 28.6 × 10.5 mm
• MPN: 533680.8
• EAN: 4049759165741

How to use

Install the attenuator inline between two SC‑terminated fiber connectors, ensuring clean connector endfaces before mating. Push the SC connector fully into the mating adapter or adapter port until it clicks. Verify link power levels after insertion to confirm the expected 45 dB reduction. Use appropriate handling to avoid bending the fiber near the connector.

Recommendations

Clean connector endfaces with approved fiber cleaning tools before each connection. Avoid excessive mechanical stress and exposure to water; install the attenuator within protected enclosures when used outdoors. Verify attenuation with an optical power meter after installation.