Product details

RF Connectors / Coaxial Connectors SMA Straight Jack End Launch .062

Name: 142-0791-821
SKU: 142-0791-821

China-sourced compatible alternative — fit confirmed by drawing/spec review.

Part number (MPN)

142-0791-821

Impedance

50 Ohms

Frequency

18 GHz

Need a custom version from drawing?

We coordinate supplier-qualified RF connector and cable assembly sourcing from drawings, samples, or BOM. Typical production lead time is 3–6 weeks after drawing/spec review; feasibility, MOQ, and fit are confirmed by RFQ.

Custom RF cable from drawing →

WhatsApp — Quick Reply

Lead time: 3–6 wks | MOQ: 200+ pcs

Before RFQ Clear inputs speed up review. ⌄

• Share the reference MPN and source brand if it matters.
• Add the BOM and volume split for production projects.
• Attach the drawing or the key fit requirements.

How we review alternatives

Image

Click image to enlarge.

Specifications

142-0791-821

Specifications for 142-0791-821
Interface	RF Connectors / Coaxial Connectors
Interface	PCB Mount
Interface	SMA
Impedance	50 Ohms
Frequency (max)	-
Frequency (max)	18 GHz
Gender	Jack (Female)
Orientation	End Launch
Termination	Solder
Termination	Beryllium Copper
Termination	Gold
Polarity	Normal

Show 7 more specs

Insulation Resistance	5 GOhms
Body Finish	Gold
Part # Aliases	1420791821
Product	Connectors
Product Category	RF Connectors / Coaxial Connectors
RoHS	E
Subcategory	RF Interconnects

Description

Current reference data for 142-0791-821: 50 Ohms · 18 GHz · PCB Mount. The catalog currently lists the configuration as: End Launch · Solder. Impedance is listed as 50 Ohms. If that parameter is critical, confirm it again in RFQ. Frequency is listed as 18 GHz. The real operating limit still depends on the assembly, mating pair, and application context. For higher-frequency projects, include the drawing, cable path, and critical requirements in the first RFQ. Mounting is listed as PCB Mount. If panel, bulkhead, or flange constraints matter, send the dimensions with the RFQ. Material is listed as Beryllium Copper. That is useful for review, but it does not replace full project stack-up confirmation. Use this page to shortlist before RFQ, not as the final sign-off.

Use this page to shortlist before RFQ. MOQ 200+ custom production and supply path are confirmed after drawing/spec/BOM review; no spot stock is assumed.

Request Quote (RFQ)

Cstone is a professional factory—not a trading company—specializing in RF and coaxial connectors, adapters, and cable assemblies, including N-type, BNC, SMA, SMP, SSMB, MMCX, and more. We manufacture custom connectors to 2D drawings or samples; fit, MOQ, lead time, and production details are confirmed by RFQ. Factory-made production to 2D drawings or samples; MOQ 200+ and typical 3–6 week lead time are confirmed after drawing/spec/BOM review. Physical inventory is not promised; production details are confirmed by RFQ.

Drawing / spec review MOQ / lead-time check RF connectors Adapters Cable assemblies

Why work with us?

Form-Fit-Function compatibility confirmed by drawing/spec review
Commercially competitive alternative for replacement and sourcing projects
MOQ 200+ and lead time confirmed by model, quantity, and supply path

Working hours: 10:00–20:00 (Beijing Time, UTC+8)

We typically reply within 1 business day (subject to workload and time zones).

Need a brand replacement workflow? Open the general brief → Need an approved alternative or cost-down workflow? Open the procurement brief →

Related RF sourcing routes

If this MPN is only a reference point, continue with a replacement, equivalent, adapter, or drawing-based cable assembly review.

Brand replacement briefs SMA alternatives from China BNC connector equivalents N Type RF replacement Custom RF cable from drawing

Open contact form

Engineer checklist (key parameters)

Interface SMA

Gender Jack (Female)

Orientation End Launch

Impedance 50 Ohms

Frequency (max) 18 GHz

Mounting PCB Mount

Termination Solder

If these parameters are critical, include them in the RFQ.

FAQ

What is the impedance of 142-0791-821?

Our catalog lists the impedance for 142-0791-821 as: 50 Ohms. If impedance is critical for your application, include the requirement in your RFQ and we will confirm.

What frequency is 142-0791-821 rated for?

Our catalog lists the frequency for 142-0791-821 as: 18 GHz. Actual performance depends on assembly/materials/application — send an RFQ so we can confirm a suitable option.

What mounting style does 142-0791-821 use?

Our catalog lists the mounting style for 142-0791-821 as: PCB Mount. If you have panel/bulkhead/flange constraints, attach a drawing in the RFQ.

Similar Connectors

Related models:

132250

RF Connectors / Coaxial Connectors SMA R/A PLUG .047

View details →

73251-0672

RF Connectors / Coaxial Connectors SMA R/A PLUG FOT RG58 CABLE

View details →

245108-02-36.00

MMCX Right Angle Plug to SMA Right Angle Bulkhead Jack RG-174 50 Ohm 36 inches

View details →

PT1952.7SMSMFBH

RF Cable Assemblies CASSY, A195, SMAM, S MAF

View details →

A30E80-47T-

SMA plug to MMCX jack using .047 semi-rigid

View details →

245101-04-M0.75

RF Cable Assemblies BNC STR Plug/SMA STR Plug CBL 0.75 Meters

View details →

MPN Search Supports exact, prefix, and partial matching. ⌄

Supports exact, prefix, and partial matching.

000-10400 000-1 00010400

Disclaimer

Manufacturer names, trademarks, symbols, and part numbers are used for identification and cross-reference only. Cstone Technology operates its own factory for RF/coaxial connectors, adapters, and cable assemblies and is not a trading company or affiliated with the original brands. Trademarks remain the property of their respective owners. Final suitability is confirmed by drawing/spec review during RFQ.