MMCX-LP-316/U Equivalent & Substitute Parts

Part Overview

The MMCX-LP-316/U is a right-angle MMCX connector plug manufactured by Hirose Electric Co Ltd, designed for 50-ohm coaxial applications with RG-316 cable compatibility. This connector features solder termination for the center contact and crimp termination for the shield, operating across a frequency range up to 6 GHz. The main part is currently listed as obsolete, making identification of active equivalent alternatives essential for ongoing procurement and system maintenance.

Key Parameters

Parameter	Value
Connector Style	MMCX
Connector Type	Plug, Male Pin
Impedance	50 Ohms
Mounting Type	Free Hanging (In-Line), Right Angle
Contact Termination	Solder
Shield Termination	Crimp
Frequency - Max	6 GHz
Cable Group	RG-316
Operating Temperature	-55°C ~ 85°C
Mating Cycles	500

Substitute Part Grouping Explanation

Substitution for the MMCX-LP-316/U is determined by strict equivalence across the following critical parameters:

Connector Style: MMCX
Connector Type: Plug, Male Pin
Impedance: 50 Ohms
Mounting Type: Free Hanging (In-Line), Right Angle
Contact Termination: Solder
Shield Termination: Crimp
Frequency - Max: 6 GHz
Mating Cycles: 500

Two substitute parts meet these criteria. The MMCX-LP-316/U(40) is a direct variant from the same manufacturer with identical electrical and mechanical specifications but active product status and improved RoHS compliance. The 908-43300 from Amphenol RF maintains all critical electrical parameters and mechanical compatibility while supporting an extended cable group range and enhanced operating temperature specifications.

Parameter Comparison

Parameter	MMCX-LP-316/U	MMCX-LP-316/U(40)	908-43300
Manufacturer	Hirose Electric Co Ltd	Hirose Electric Co Ltd	Amphenol RF
Product Status	Obsolete	Active	Active
Connector Style	MMCX	MMCX	MMCX
Connector Type	Plug, Male Pin	Plug, Male Pin	Plug, Male Pin
Impedance	50 Ohms	50 Ohms	50 Ohms
Mounting Type	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle	Free Hanging (In-Line), Right Angle
Contact Termination	Solder	Solder	Solder
Shield Termination	Crimp	Crimp	Crimp
Frequency - Max	6 GHz	6 GHz	6 GHz
Cable Group	RG-316	RG-316	RG-174, 188, 188A, 316, LMR-100, M17/119-RG174
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-65°C ~ 165°C
Mating Cycles	500	500	500
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For applications requiring direct replacement of the obsolete MMCX-LP-316/U, the MMCX-LP-316/U(40) provides identical electrical and mechanical performance with the advantage of active product status and RoHS compliance. This variant is the preferred choice when maintaining exact specifications and manufacturer continuity is required.

The 908-43300 from Amphenol RF serves as a cross-manufacturer alternative that meets all core electrical and mechanical requirements. This part offers extended operating temperature range (-65°C to 165°C versus -55°C to 85°C) and broader cable group compatibility, supporting RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174 cables. Selection of the Amphenol RF part is appropriate when temperature performance or cable flexibility requirements exceed the original specification or when multi-source procurement strategy is implemented.

Frequently Asked Questions (FAQ)

Q: Can the MMCX-LP-316/U(40) be used as a direct replacement for the obsolete MMCX-LP-316/U?

A: Yes. The MMCX-LP-316/U(40) maintains identical electrical specifications (50 ohms, 6 GHz maximum frequency), mechanical configuration (right-angle, free-hanging solder termination), and operating temperature range (-55°C to 85°C). The primary differences are active product status and improved RoHS compliance.

Q: What are the key differences between the Hirose MMCX-LP-316/U(40) and the Amphenol RF 908-43300?

A: Both parts are electrically and mechanically equivalent for the core MMCX connector function. The Amphenol RF 908-43300 provides extended operating temperature capability (-65°C to 165°C) and supports a broader range of cable types. Manufacturer selection depends on procurement strategy, supply chain requirements, and specific application temperature demands.

Q: Are there packaging differences between these substitute parts?

A: The MMCX-LP-316/U is packaged individually with 2 pieces included (1 connector, 1 heat shrink). The MMCX-LP-316/U(40) uses bulk packaging with the same 2-piece inclusion. The Amphenol RF 908-43300 is bulk packaged with 3 pieces included (1 connector, 1 end cap, 1 ferrule), providing additional assembly components.

Q: Do all three parts meet the same compliance standards?

A: The MMCX-LP-316/U is RoHS non-compliant. Both substitute parts are RoHS compliant (MMCX-LP-316/U(40) is RoHS Compliant; 908-43300 is ROHS3 Compliant). All three parts share identical ECCN (EAR99) and HTSUS (8536.69.4010) classifications.

Q: Can the 908-43300 be used with RG-316 cable specifically?

A: Yes. The 908-43300 supports RG-316 cable as part of its extended cable group compatibility, which includes RG-174, RG-188, RG-188A, RG-316, LMR-100, and M17/119-RG174.

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