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HRM(V)-304S-2 Equivalent & Substitute Parts
Part Overview
The HRM(V)-304S-2 is an SMA connector jack (female socket) manufactured by Hirose Electric Co Ltd, designed for 50-ohm RF coaxial applications with panel mount solder termination. This part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and procurement planning. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct interchangeability in existing designs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Style | SMA |
| Connector Type | Jack, Female Socket |
| Impedance | 50 Ohms |
| Contact Termination | Solder |
| Shield Termination | Solder |
| Mounting Type | Panel Mount |
| Mounting Feature | Flange |
| Fastening Type | Threaded |
| Frequency - Max | 18 GHz |
| Number of Ports | 1 |
| Center Contact Material | Beryllium Copper |
| Body Material | Stainless Steel |
| Center Contact Plating | Gold |
| Dielectric Material | Polytetrafluoroethylene (PTFE) |
| Operating Temperature | -55°C ~ 85°C |
| Mating Cycles | 500 |
| Housing Color | Silver |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the HRM(V)-304S-2 are identified based on strict parametric equivalence across the following critical specifications:
Electrical Parameters: Connector style (SMA), connector type (jack, female socket), impedance (50 ohms), frequency capability (18 GHz maximum), and contact/shield termination method (solder).
Mechanical Parameters: Mounting type (panel mount), mounting feature (flange), fastening type (threaded), number of ports (1), and mating cycle rating (500).
Material Specifications: Center contact material (beryllium copper), body material (stainless steel), center contact plating (gold), and dielectric material (PTFE).
Environmental Parameters: Operating temperature range and moisture sensitivity level (MSL 1).
All identified substitutes maintain these parameters without deviation, ensuring functional and mechanical compatibility.
Parameter Comparison
| Parameter | HRM(V)-304S-2 | HRM(V)-301S | HRM(V)-304S | 141-0701-641 |
|---|---|---|---|---|
| Manufacturer | Hirose Electric Co Ltd | Hirose Electric Co Ltd | Hirose Electric Co Ltd | Cinch Connectivity Solutions Johnson |
| Connector Style | SMA | SMA | SMA | SMA |
| Connector Type | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket | Jack, Female Socket |
| Impedance | 50 Ohms | 50 Ohms | 50 Ohms | 50 Ohms |
| Contact Termination | Solder | Solder | Solder | Solder |
| Shield Termination | Solder | Solder | Solder | Solder |
| Mounting Type | Panel Mount | Panel Mount | Panel Mount | Panel Mount |
| Mounting Feature | Flange | Flange | Flange | Flange |
| Fastening Type | Threaded | Threaded | Threaded | Threaded |
| Frequency - Max | 18 GHz | 18 GHz | 18 GHz | 18 GHz |
| Number of Ports | 1 | 1 | 1 | 1 |
| Center Contact Material | Beryllium Copper | Beryllium Copper | Beryllium Copper | Beryllium Copper |
| Body Material | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel |
| Center Contact Plating | Gold | Gold | Gold | Gold |
| Dielectric Material | PTFE | PTFE | PTFE | PTFE |
| Operating Temperature | -55°C ~ 85°C | -55°C ~ 85°C | -55°C ~ 85°C | -65°C ~ 165°C |
| Mating Cycles | 500 | 500 | 500 | 500 |
| Housing Color | Silver | Silver | Silver | Silver |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active | Obsolete | Active |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
HRM(V)-301S is the primary recommended substitute for the HRM(V)-304S-2. Both parts are manufactured by Hirose Electric Co Ltd and maintain identical electrical and mechanical specifications. The HRM(V)-301S holds active product status, ensuring ongoing availability and support. It carries ROHS3 compliance certification and is affected by REACH regulations, indicating current manufacturing standards. This part is available in bulk packaging with 1923 units in stock.
HRM(V)-304S provides an alternative substitute with identical parametric specifications to the main part. However, this part shares obsolete product status with the HRM(V)-304S-2, limiting its suitability for long-term procurement strategies. It carries RoHS compliance and is available with 946 units in stock.
141-0701-641 manufactured by Cinch Connectivity Solutions Johnson is a cross-manufacturer substitute meeting all electrical and mechanical requirements. This part maintains active product status and ROHS3 compliance. The operating temperature range extends to -65°C ~ 165°C, providing broader environmental capability than the original specification. REACH status indicates this part is unaffected by REACH regulations. It is available in bag packaging with 1135 units in stock.
For new designs and long-term system support, HRM(V)-301S is the preferred selection due to active status and current compliance certifications. The 141-0701-641 offers an alternative from a different manufacturer with extended temperature capability.
Frequently Asked Questions (FAQ)
Q: Can HRM(V)-301S directly replace HRM(V)-304S-2 in existing assemblies?
A: Yes. Both parts maintain identical electrical specifications (SMA jack, 50 ohms, 18 GHz maximum frequency), mechanical configuration (panel mount flange, threaded fastening, solder termination), and material composition (beryllium copper center contact, stainless steel body, gold plating, PTFE dielectric). Operating temperature range and mating cycle ratings are equivalent.
Q: What is the difference between HRM(V)-304S and HRM(V)-304S-2?
A: Both parts share identical parametric specifications. The suffix designation (-2) does not indicate a functional or electrical difference based on provided data. Both are classified as obsolete.
Q: Why does 141-0701-641 have a different operating temperature range?
A: The 141-0701-641 operates from -65°C ~ 165°C compared to -55°C ~ 85°C for the HRM(V)-304S-2. This extended range does not affect substitution compatibility; the part remains suitable for applications within the original temperature specification and provides additional capability for wider environmental conditions.
Q: Are there packaging differences between substitutes?
A: Yes. HRM(V)-304S-2 packaging is not specified. HRM(V)-301S is supplied in bulk packaging, HRM(V)-304S in bulk packaging, and 141-0701-641 in bag packaging. Packaging format does not affect electrical or mechanical compatibility.
Q: Which substitute should be selected for new procurement?
A: HRM(V)-301S is recommended for new procurement due to active product status and current ROHS3 compliance certification. This ensures ongoing manufacturer support and supply chain stability.
Q: Are all substitutes RoHS compliant?
A: Yes. HRM(V)-304S-2, HRM(V)-304S carry RoHS compliance. HRM(V)-301S and 141-0701-641 carry ROHS3 compliance, representing current regulatory standards.
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