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31-221 The Amphenol 31-221 is an RF connector/coaxial connector with a 50 Ohm impedance and a maximum frequency of 4 GHz. It features a bulkhead mount and solder cup termination.
Mfr Part #:

31-221

Available from 2 distributors
Mfr Name: Amphenol
Amphenol
The Amphenol 31-221 is an RF connector/coaxial connector with a 50 Ohm impedance and a maximum frequency of 4 GHz. It features a bulkhead mount and solder cup termination.
✓ Total Stock: 51 pcs
$ Price Range: $1.00

31-221 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
RAD ✓
Non-Authorised Inventory information
40 pcs
On Request
40 pcs On Request 1 On Request On Request On Request On Request On Request
Bristol Electronics ✓
Non-Authorised Inventory information
11 pcs
On Request
11 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

31-221 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Body Finish
Body Material
Contact Material
Contact Plating
Failure Rate
Gender
Impedance
Isolation
Mating Cycles
Mounting Type
Operating Temperature Range
Orientation
Product Type
Termination Style
Voltage Rating
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31-221 Description

Short technical summary and product information.

The Amphenol 31-221 is a BNC series RF connector/coaxial connector designed for reliable signal transmission. It offers a 50 Ohm impedance and operates up to a maximum frequency of 4 GHz.

 

This connector features a straight orientation and a bulkhead front mount type, making it suitable for panel-mount applications. The body is constructed from brass with a nickel finish, and the contacts are plated with silver and made from beryllium copper. The coupling mechanism is bayonet type, rated for 500 mating cycles.

 

With a voltage rating of 500V and an operating temperature range of -65°C to +165°C, the 31-221 is built for demanding environments. It is supplied in bulk packaging.

31-221 Quick Information

Product Type: RF Connector / Coaxial Connector
Series: BNC
Canonical Name: Amphenol 31-221 RF Connector / Coaxial Connector
Subcategory: RF Interconnects

31-221 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

31-221 Estimated Pricing

Qty Low High
1+ $1.00 $1.00

Estimated market price range - modelled values for guidance only, not live distributor offers.

31-221 Features

  • 50 Ohm impedance for signal integrity.
  • Maximum frequency of 4 GHz.
  • Bulkhead front mount design.
  • Bayonet coupling mechanism.
  • Operates from -65°C to +165°C.

31-221 Applications

  • Suitable for RF signal connections.
  • Ideal for panel mount applications.
  • Used in communication systems.
  • Applicable in test and measurement equipment.

31-221 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the impedance of the Amphenol 31-221?

50 Ohms.

What is the maximum frequency of this connector?

4 GHz.

What type of termination does this connector use?

Solder cup.

What is the mounting type?

Bulkhead - front mount.

What is the voltage rating?

500 V.

What is the operating temperature range?

-65°C to +165°C.

What is the coupling mechanism?

Bayonet.

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