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AMPHENOL COMMERCIAL PRODUCTS L77SDC37SC309 D-Sub Solder Cup Connector

Amphenol's SD series D-Sub connectors are designed for commercial applications requiring high quality and reliability. These connectors feature precision-formed contacts and a robust construction, meeting MIL C24308 specifications. They are ideal for industrial automation, telecommunications equipment, and any application requiring standard I/O connections. The connectors offer a range of plating options, including gold flash, gold, and nickel, to ensure optimal signal transmission and durability. Available with various rear insert options including screwlock, these connectors provide secure and reliable connections in demanding environments.

Authorized Distributors
Source:DigiKey
Part No:L77SDC37SC309
Stock:554
Inv Date:06-01-2026
Price: Unit price: $4.6
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Part No:L77SDC37SC309
Stock:166
Inv Date:06-02-2026
Price: Unit price: $4.6
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Part No:L77SDC37SC309
Stock:0
Inv Date:06-01-2026
Price: Unit price: $3.46
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Part No:L77SDC37SC309
Stock:490
Inv Date:06-01-2026
Price: Unit price: $3.6
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Part No:L77SDC37SC309
Stock:490
Inv Date:06-01-2026
Price: Unit price: $3.6
Buy/RFQ:
Part No:L77SDC37SC309
Stock:1040
Inv Date:06-02-2026
Price: N/A
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AMPHENOL COMMERCIAL PRODUCTS L77SDC37SC309 D-Sub Solder Cup Connector Specifications:

  • UL File: E232356
  • Connectors: according to MIL C24308
  • Shells: Steel, tin over nickel plating
  • Insulator: Glass-filled thermoplastic, UL 94V-0
  • Contacts: Brass, selected gold in mating area; 2.54µm (100µ") min. tin on termination area over 1.27µm (50µ") min. nickel
  • Rear insert Screwlock: Brass, 2.54µm (100µ") min. nickel plated
  • Current rating (Standard Density): 5A
  • Current rating (High Density): 3A
  • Voltage rating: 250V AC/rms 50Hz
  • Withstanding voltage: 1000V AC/rms 50Hz for one minute
  • Insulation resistance: 1000MΩ at 500V DC
  • Contact resistance: 20mΩ max
  • Operating temperature: -55°C to +125°C
  • Salt spray: 24 hours
  • Single contact insertion force: 0.54kg (1.19lb) max
  • Single contact withdrawal force (SD): 0.06kg (0.13lb) min
  • Single contact withdrawal force (HD): 0.02kg (0.044lb) min
  • Mating force (SD): 3.05kg (6.74lb) max
  • Unmating force (SD): 0.36kg (0.79lb) min
  • Mating force (HD): 3.81kg (8.42lb) max
  • Unmating force (HD): 0.52kg (1.14lb) min
  • Standard plating thickness (gold flash): 0.4µm (15µ")
  • Standard plating thickness (gold): 0.76 µm (30µ")

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How do I troubleshoot issues or seek technical support for part L77SDC37SC309?

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AMPHENOL COMMERCIAL PRODUCTS

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