Amphenol RF 112148 BNC Connector Jack Equivalent & Substitute Parts

Part Overview

The Amphenol RF 112148 is a BNC connector jack (female socket) rated for 50 ohms impedance, designed for free-hanging in-line crimp termination applications. This connector is suitable for RF coaxial cable assemblies operating up to 4 GHz with a maximum voltage rating of 500 V. The part is currently active in production with 853 pieces in stock.

Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, support legacy system maintenance, and address specific packaging or compliance requirements.

Substiute Parts

112148

Amphenol RFIn Stock: 946112148 Datasheet

Current PartRFQ

000-36800

Amphenol RFIn Stock: 1037000-36800 Datasheet

Parametric EquivalentRFQ

000-36800-RFX

Amphenol RFIn Stock: 1881000-36800-RFX Datasheet

Parametric EquivalentRFQ

112144

Amphenol RFIn Stock: 1492112144 Datasheet

Parametric EquivalentRFQ

2-331351-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 10262-331351-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Amphenol RF 112148 are classified into two categories based on electrical and mechanical parameter alignment:

Parametric Equivalents (Direct Substitutes): Parts 000-36800, 000-36800-RFX, and 112144 maintain identical electrical specifications: BNC jack female socket, 50 ohms impedance, crimp termination, 4 GHz maximum frequency, 500 V voltage rating, 0.2 dB insertion loss, and 500 mating cycles. All are compatible with the same cable groups (RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907). Differences exist only in packaging format (bag, bulk), product status (active vs. not for new designs), dielectric material (POM acetal vs. PTFE), and operating temperature specifications.

Similar Substitute (Cross-Manufacturer Alternative): Part 2-331351-1 from TE Connectivity Aerospace, Defense and Marine is classified as a similar substitute. It matches the core electrical parameters (BNC jack female socket, 50 ohms, crimp termination, 4 GHz, 500 V, 0.2 dB insertion loss, 500 mating cycles) and mechanical form factor. However, it differs in cable group compatibility (limited to RG-58, 58A, 58B, 58C), center contact material (beryllium copper vs. phosphor bronze), body finish (silver vs. nickel), and operating temperature range (-55°C to 85°C vs. unspecified for 112148). This part is discontinued at DiGi Electronics.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: Select Amphenol RF 112148 or 000-36800-RFX. Both parts carry Active product status and ROHS3 compliance. The 000-36800-RFX offers higher inventory availability (1839 pieces) and bulk packaging format, suitable for high-volume production. The 112148 is the primary reference part with standard packaging.

For Legacy System Maintenance: Parts 000-36800 and 112144 are suitable for field replacement and repair applications. Although 000-36800 is marked "Not For New Designs," it remains functionally equivalent for existing installations. Both maintain full electrical and mechanical compatibility with the 112148.

For Cross-Manufacturer Substitution: Part 2-331351-1 from TE Connectivity is available as an alternative when Amphenol RF parts are unavailable. However, this part is discontinued at DiGi Electronics and has limited cable group compatibility (RG-58, 58A, 58B, 58C only). Use only when the application cable set is restricted to these four cable types and when supply of Amphenol RF equivalents is exhausted.

Material and Temperature Considerations: The 112148 uses POM acetal dielectric material, while 000-36800, 000-36800-RFX, 112144, and 2-331351-1 use PTFE dielectric. PTFE offers superior high-frequency performance and wider operating temperature range. For applications requiring extended temperature operation or high-frequency stability, prioritize PTFE-based alternatives (000-36800, 000-36800-RFX, or 112144).

Frequently Asked Questions (FAQ)

Q: Can 000-36800-RFX be used as a direct replacement for 112148 in production?

A: Yes. Both parts are BNC jack female socket connectors with identical electrical specifications (50 ohms, 4 GHz maximum frequency, 500 V rating, 0.2 dB insertion loss, 500 mating cycles) and mechanical form factor. The 000-36800-RFX is Active status and ROHS3 compliant. The primary difference is packaging format (bulk vs. unspecified) and dielectric material (PTFE vs. POM acetal). Verify that your application cable set includes one or more of the compatible types: RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, or 9907.

Q: What is the difference between 000-36800 and 000-36800-RFX?

A: Both parts are electrically and mechanically identical. The differences are: (1) Product Status: 000-36800 is "Not For New Designs" while 000-36800-RFX is Active; (2) Packaging: 000-36800 is supplied in Bag format, 000-36800-RFX in Bulk format; (3) Inventory: 000-36800-RFX has higher stock (1839 pieces vs. 963 pieces). For new production, select 000-36800-RFX.

Q: Is the TE Connectivity 2-331351-1 a suitable substitute?

A: The 2-331351-1 matches core electrical parameters and mechanical form factor. However, it is discontinued at DiGi Electronics and has restricted cable group compatibility (RG-58, 58A, 58B, 58C only, versus the broader compatibility of Amphenol RF parts). Use only when: (1) your application uses only RG-58, 58A, 58B, or 58C cable, and (2) Amphenol RF equivalents are unavailable. Verify center contact material compatibility (beryllium copper vs. phosphor bronze) with your cable assembly process.

Q: Does the dielectric material difference (POM acetal vs. PTFE) affect compatibility?

A: Both POM acetal and PTFE are acceptable dielectric materials for BNC connectors in the specified frequency and voltage range. PTFE offers superior performance at higher frequencies and wider operating temperature range. For applications operating near 4 GHz or requiring extended temperature operation, PTFE-based parts (000-36800, 000-36800-RFX, 112144) are preferred. For standard RF applications below 2 GHz, both materials are functionally equivalent.

Q: What packaging options are available?

A: The 112148 packaging is not specified in the data. Alternatives include: Bag format (000-36800, 112144) for smaller quantities and standard handling, and Bulk format (000-36800-RFX) for high-volume production runs. Select based on your assembly process requirements and inventory management practices.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts (112148, 000-36800, 000-36800-RFX, 112144, and 2-331351-1) are ROHS3 compliant. All are also REACH affected and carry EAR99 ECCN classification.

Q: What is the Moisture Sensitivity Level (MSL) for these connectors?

A: All Amphenol RF parts (112148, 000-36800, 000-36800-RFX, 112144) have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. The TE Connectivity 2-331351-1 has MSL Not Applicable. Standard storage and handling practices apply.