HRM-103(09) SMA Coaxial Connector Equivalent & Substitute Parts

Part Overview

The HRM-103(09) is an SMA connector jack with female socket configuration manufactured by Hirose Electric Co Ltd, designed for semi-rigid cable applications with RG-402 (.141") cable group compatibility. This panel-mount, solder-terminated connector operates at 50 ohms impedance and supports frequencies up to 18 GHz. The part is currently in Last Time Buy status, making identification of equivalent alternatives essential for ongoing procurement and design continuity. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct interchangeability in RF applications.

Substiute Parts

HRM-103(09)

Hirose Electric Co LtdIn Stock: 1250HRM-103(09) Datasheet

Current PartRFQ

1051088-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 7931051088-1 Datasheet

Parametric EquivalentRFQ

9431-1083-009

Radiall USA, Inc.In Stock: 10019431-1083-009 Datasheet

Parametric EquivalentRFQ

9441-1083-009

Radiall USA, Inc.In Stock: 9879441-1083-009 Datasheet

Parametric EquivalentRFQ

R125251000

Radiall USA, Inc.In Stock: 1049R125251000 Datasheet

Parametric EquivalentRFQ

R125251000W

Radiall USA, Inc.In Stock: 1175R125251000W Datasheet

Parametric EquivalentRFQ

R125255000

Radiall USA, Inc.In Stock: 859R125255000 Datasheet

Parametric EquivalentRFQ

R125255000W

Radiall USA, Inc.In Stock: 728R125255000W Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters: connector style (SMA), connector type (jack, female socket), impedance (50 ohms), contact and shield termination method (solder), mounting configuration (panel mount with flange), cable group compatibility (RG-402 semi-rigid), fastening type (threaded), maximum frequency (18 GHz), center contact material (beryllium copper), body material (stainless steel), finish specifications (gold body and center contact plating), and dielectric material (PTFE).

All identified substitute parts maintain these core electrical and mechanical specifications. Variations in operating temperature range, mating cycle ratings, and voltage specifications do not preclude substitution when the primary functional parameters align. Product status and compliance certifications are secondary considerations that support selection but do not override parametric equivalence.

Parameter Comparison

Engineering Selection Recommendations

All seven substitute parts are parametrically equivalent to the HRM-103(09) across all critical electrical and mechanical specifications. Selection among these alternatives should be based on product status and compliance requirements.

TE Connectivity 1051088-1 is qualified to MIL-PRF-39012 military standard and maintains Active product status with ROHS3 compliance, making it suitable for applications requiring military-grade specifications.

Radiall parts 9431-1083-009 and 9441-1083-009 are Active products with ROHS3 compliance. These parts are functionally identical and differ only in internal designation.

Radiall parts R125251000, R125251000W, R125255000, and R125255000W are Active products with ROHS3 compliance. The primary distinction among these four parts is flange geometry: R125251000 and R125251000W feature two-hole flange configuration, while R125255000 and R125255000W feature square flange configuration. The "W" suffix variants are functionally equivalent to their non-W counterparts. Operating temperature range for these Radiall parts is -65°C to 105°C, which is narrower than the HRM-103(09) specification of -55°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts directly in place of the HRM-103(09)?

A: Yes. All seven substitute parts maintain identical electrical specifications (SMA connector style, 50 ohm impedance, 18 GHz maximum frequency) and mechanical specifications (panel mount with flange, solder termination, RG-402 semi-rigid cable compatibility). Direct substitution is supported from an electrical and mechanical standpoint.

Q: What is the difference between the Radiall R125251000 and R125255000 series?

A: Both series are parametrically equivalent. The primary difference is flange geometry: R125251000 uses a two-hole flange design, while R125255000 uses a square flange design. Selection depends on panel mounting hole pattern requirements.

Q: What does the "W" suffix mean on Radiall part numbers?

A: The "W" suffix variants (R125251000W and R125255000W) are functionally equivalent to their non-W counterparts. Both versions maintain identical electrical and mechanical specifications.

Q: Are there temperature range differences I should consider?

A: The HRM-103(09) operates from -55°C to 125°C. The TE Connectivity 1051088-1 and Radiall 9431-1083-009 and 9441-1083-009 parts operate from -65°C to 165°C, providing extended temperature capability. The Radiall R125251000, R125251000W, R125255000, and R125255000W parts operate from -65°C to 105°C. If your application requires the full -55°C to 125°C range of the original part, all substitutes are suitable. If your application requires operation above 125°C, only the TE Connectivity and Radiall 9431/9441 series support this requirement.

Q: What is the mating cycle difference between the HRM-103(09) and substitute parts?

A: The HRM-103(09) is rated for 1000 mating cycles, while all substitute parts are rated for 500 mating cycles. If your application requires 1000 mating cycles, this specification difference should be evaluated against actual usage patterns.

Q: Which substitute part should I select for military applications?

A: The TE Connectivity 1051088-1 is qualified to MIL-PRF-39012 military standard and is the appropriate selection for applications requiring military-grade specifications.

Q: Are all substitute parts RoHS compliant?

A: The HRM-103(09) is RoHS Compliant. The TE Connectivity 1051088-1 and all Radiall parts except 9431-1083-009 are ROHS3 Compliant. The 9431-1083-009 RoHS status is not specified in available documentation. For applications requiring RoHS compliance, the TE Connectivity 1051088-1 and Radiall R125251000, R125251000W, R125255000, and R125255000W parts are confirmed compliant.