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Amphenol D3899920MC35SN MIL-DTL-38999 Series III Connector

This is a MIL-DTL-38999 Series III circular connector, designed for military and aerospace applications. It features a robust metal shell, reliable locking mechanisms, and high-performance electrical contacts suitable for demanding environments.

Authorized Distributors
Source:Newark
Part No:D38999/20MC35SN
Stock:105
Inv Date:05-29-2026
Price: Unit price: $1728.32
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Part No:D3899920MC35SN
Stock:0
Inv Date:05-30-2026
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Part No:D38999/20MC35SN
Stock:0
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Source:DigiKey
Part No:D38999/20MC35SN
Stock:28
Inv Date:05-29-2026
Price: Unit price: $149.59
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Source:DigiKey
Part No:D38999/20MC35SN
Stock:275
Inv Date:05-29-2026
Price: Unit price: $226.13
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Source:DigiKey
Part No:D38999/20MC35SN
Stock:0
Inv Date:05-29-2026
Price: Unit price: $212.68
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Source:DigiKey
Part No:D38999/20MC35SN
Stock:10
Inv Date:05-29-2026
Price: Unit price: $187.84
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Part No:D38999/20MC35SN
Stock:0
Inv Date:05-30-2026
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Part No:D38999/20MC35SN
Stock:0
Inv Date:05-30-2026
Price: Unit price: $1109.03
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Authorized Distributors
Part No:D38999/20MC35SN
Stock:36
Inv Date:05-30-2026
Price: Unit price: $110.58
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Part No:D38999/20MC35SN
Stock:0
Inv Date:05-29-2026
Price: Unit price: $45.17
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Part No:D38999/20MC35SN
Stock:0
Inv Date:05-29-2026
Price: Unit price: $37.27
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Part No:D38999/20MC35SN
Stock:0
Inv Date:05-29-2026
Price: Unit price: $66.83
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Part No:D38999/20MC35SN
Stock:10
Inv Date:05-29-2026
Price: Unit price: $171.65
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Part No:D38999/20MC35SN
Stock:21
Inv Date:05-29-2026
Price: Unit price: $45.8944
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Part No:D38999/20MC35SN
Stock:7
Inv Date:05-29-2026
Price: Unit price: $45.8944
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Part No:D38999/20MC35SN
Stock:9
Inv Date:05-29-2026
Price: Unit price: $2077.31
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Part No:D38999/20MC35SN
Stock:2
Inv Date:05-29-2026
Price: Unit price: $202.34
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Amphenol D3899920MC35SN MIL-DTL-38999 Series III Connector Specifications:

  • Shell Material: Aluminum or Stainless Steel with various finishes (e.g., anodic coating, electroless nickel, cadmium) with corrosion resistant options
  • Shell Sizes: 9, 11, 13, 15, 17, 19, 21, 23, 25, various insert arrangements available
  • Contacts: High-reliability with options for coax, twinax, power, fiber optic, and multi-axial configurations; size 8 to 22D available
  • Contact Rating: Up to 30 Amps depending on contact size and type
  • Voltage Rating: 600V (building wire), higher in specific military versions
  • Temperature Range: -65°C to +175°C
  • Finish Options: Nickel, cadmium, stainless steel, gold plating, passivation, and protective coatings
  • Vibration/Shock: Operates under severe high-temperature vibration environments, tests exceed 200°C
  • EMI Shielding: Superior electromagnetic interference shielding of at least 65dB at 10 GHz
  • Sealing & Resistance: High moisture and salt spray resistance, hermetic versions available
  • Standards Compliance: MIL-DTL-38999 Series III, MIL-STD-1760 (for military applications), and additional military certifications
  • Locking Mechanism: 360° self-locking coupling nut with acme threads for durable connection

Buy the Amphenol 38999 Series III – Reliable MIL-DTL-38999 Connector for Industrial Applications

Enhance your project with the MIL-DTL-38999 Series III connector from Amphenol. Designed for tough environments, it offers superior EMI shielding, corrosion resistance, and secure locking. Suitable for aerospace, military, and industrial applications, this connector ensures reliable electrical connections and easy installation with a wide range of options. Order online today and benefit from quick delivery, premium quality, and industry-leading performance designed to meet your demanding specifications and improve your system’s reliability.

Buy Amphenol 38999 Series III connector now and experience unmatched durability and reliable performance in demanding military and aerospace environments.

Frequently Asked Questions

Where can I buy Amphenol D3899920MC35SN?

You can click on the BUY or RFQ button to purchase D3899920MC35SN from an authorized Amphenol distributor.

How do I troubleshoot issues or seek technical support for part D3899920MC35SN?

You can download the D3899920MC35SN datasheet or visit the Amphenol website for support.

Who is the manufacturer of D3899920MC35SN?

Amphenol

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