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Suzhou, China · Sydney, Australia

SupportAbout Us

Built to Spec. Tested to Standard.

Every Frebo Microwave connector ships only after passing a multi-stage inspection process. We hold ourselves to MIL-STD-348 and IEC 61169 benchmarks across all product families.

WHY IT MATTERS

Zero Tolerance for Out-of-Spec Parts

RF connector performance is invisible to the eye but critical to the system. One bad connector can corrupt a signal path. Our process catches failures before they reach you.

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100% Visual Inspection

Every connector inspected under magnification for burrs, thread damage, plating defects, and dimensional conformance.

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Electrical Verification

Batch-level RF testing: VSWR, insertion loss, and return loss across the rated frequency range.

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Dimensional Gauging

Critical dimensions verified: mating interfaces, pin diameters, thread pitch per connector interface standards.

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Materials Traceability

Brass, stainless steel, PTFE sourced from certified suppliers with full batch traceability documentation.

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Lot Documentation

Inspection records and material certs accompany every shipment. C of C available for defense and aerospace customers.

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ISO-Aligned Process

Manufacturing and QC aligned with ISO quality principles. Operating from our Suzhou facility since 2009.

STANDARDS

Compliance and Testing Standards

Our product specifications and test methods reference the following international and military standards.

MIL-STD-348
RF Connector Interface StandardDefines mating dimensions, thread engagement, and interface geometry for defense and aerospace coaxial connectors.
IEC 61169
RF Connectors International StandardIEC series covering mechanical and electrical requirements for SMA, N-Type, and other RF connectors.
IEEE 287
Precision Coaxial ConnectorsStandard for 2.4mm, 2.92mm (K), 1.85mm (V), and 1.0mm interfaces in test and measurement.
MIL-C-39012
Coaxial RF ConnectorsMilitary specification covering electrical, mechanical, and environmental performance requirements.
RoHS / REACH
Environmental ComplianceAll standard product lines comply with EU RoHS and REACH regulations. Lead-free plating options available.
VSWR Testing
Electrical Performance VerificationVSWR measured at multiple frequency points. Typical spec 1.15:1 to 1.35:1 depending on series and frequency.
INSPECTION FLOW

5-Stage Quality Process

From incoming material to outbound shipment, every lot passes five checkpoints.

1
Incoming Material
Raw stock inspected and certed. Rejected lots quarantined.
2
Machining QC
In-process dimensional checks at critical machining stages.
3
Plating Check
Plating thickness, adhesion, and surface finish verified per spec.
4
Electrical Test
VSWR, insertion loss, return loss tested on lot samples.
5
Final Inspection
100% visual and dimensional inspection before pack and ship.

Standards and Documentation Available

MIL-STD-348 InterfaceIEC 61169 SeriesIEEE 287 PrecisionMIL-C-39012RoHS CompliantREACH CompliantCertificate of ConformanceMaterial Certs on RequestLead-Free Plating Available

Request Samples or Technical Data

We provide test reports, dimensional drawings, and material certs on request.

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