Product details

RF Adapters - Between Series SMA (M) to SMB (F)

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

Part number (MPN)

72977

Impedance

50 Ohms

Frequency

DC to 4 GHz

Interface

SMA SMB

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Lead time: 3–6 wks | MOQ: from 100 pcs

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• Share the reference MPN and source brand if it matters.
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• Attach the drawing or the key fit requirements.

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Specifications

72977

Specifications for 72977
Interface	SMA SMB
Interface	RF Adapters - Between Series
Interface	SMB
Interface	SMA
Impedance	50 Ohms
Frequency (max)	DC to 4 GHz
Frequency (max)	DC
Frequency (max)	4 GHz
Gender	Jack (Female)
Gender	Jack (Female)
Body Material	Brass
Termination	Gold

Show 7 more specs

Product Category	RF Adapters - Between Series
Adapter Style	Straight
Subcategory	RF Adapters
Shell Plating	Gold
Side 1 Polarity	Normal
Part # Aliases	3094429
RoHS	Y

Description

Current reference data for 72977: SMA SMB · 50 Ohms · DC to 4 GHz. Impedance is listed as 50 Ohms. If that parameter is critical, confirm it again in RFQ. Frequency is listed as DC to 4 GHz. The real operating limit still depends on the assembly, mating pair, and application context. If mounting is missing here, confirm it from the drawing or mating requirement. Material is listed as Brass. 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.

Request Quote (RFQ)

RF/coax connectors, adapters, and cable assemblies reviewed against your drawing, spec, or BOM.

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

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Engineer checklist (key parameters)

Interface SMB

Gender Jack (Female)

Impedance 50 Ohms

Frequency (max) DC to 4 GHz

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

FAQ

What connector interface/type does 72977 use?

According to our catalog data, 72977 lists the interface/type as: SMA SMB. To confirm mechanical fit, send an RFQ and we will validate against your drawing/spec.

What is the impedance of 72977?

Our catalog lists the impedance for 72977 as: 50 Ohms. If impedance is critical for your application, include the requirement in your RFQ and we will confirm.

What frequency is 72977 rated for?

Our catalog lists the frequency for 72977 as: DC to 4 GHz. Actual performance depends on assembly/materials/application — send an RFQ so we can confirm a suitable option.

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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 is a China-based export sourcing partner for compatible alternatives and is not affiliated with the original brands. Trademarks remain the property of their respective owners. Final suitability is confirmed by drawing/spec review during RFQ.