Product details

INSTRUMENTATION GRADE - Phase and amplitude stable microwave test assemblies

Name: 85207921
SKU: 85207921

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

Part number (MPN)

85207921

Impedance

50 Ω

Frequency

40 GHz

Interface

SF_11_SK-508

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.

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Lead time: 3–6 wks | MOQ: 200+ pcs

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• 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.

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Specifications

85207921

Specifications for 85207921
Interface	SUCOFLEX_540_S
Interface	SF_11_SK-508
Interface	SF_11_SK-508
Interface	REF to REF
Interface	SK, straight - plug
Interface	SK, straight - plug
Impedance	50 Ω
Frequency (max)	40 GHz
Frequency (max)	18 GHz
Length	24 inch
Max. insertion loss	2.08 dB
Signal delay	4.3 ns/m

Show 11 more specs

Propagation velocity	77 %
Min. screening effectiveness	90 dB
Amplitude stability vs. flexure	+/- 0.05 dB
Phase stability vs. flexure	+/- 5 °
Phase- / Time delay matching	Time delay absolute, +/- 1 ps
Cable type	6.4 mm
Static bending radius	25.4 mm
Operation temperature	-55 °C ... 125 °C
Directive	RoHS 2011/65/EU and (EU) 2015/863
Rating	Compliant with exemption
Exemptions	6c

Description

Current reference data for 85207921: SF_11_SK-508 · 50 Ω · 40 GHz. Impedance is listed as 50 Ω. If that parameter is critical, confirm it again in RFQ. Frequency is listed as 40 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. If mounting is missing here, confirm it from the drawing or mating requirement. 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)

B2B RFQ sourcing from China for compatible alternatives and supplier-coordinated custom production. MOQ 200+, typical lead time 3–6 weeks after drawing/spec/BOM review; no physical stock is promised.

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

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Engineer checklist (key parameters)

Interface SUCOFLEX_540_S

Impedance 50 Ω

Frequency (max) 40 GHz

Cable type SUCOFLEX_540_S

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

FAQ

What connector interface/type does 85207921 use?

According to our catalog data, 85207921 lists the interface/type as: SF_11_SK-508. To confirm mechanical fit, send an RFQ and we will validate against your drawing/spec.

What is the impedance of 85207921?

Our catalog lists the impedance for 85207921 as: 50 Ω. If impedance is critical for your application, include the requirement in your RFQ and we will confirm.

What frequency is 85207921 rated for?

Our catalog lists the frequency for 85207921 as: 40 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.

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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.