UM-LR-PC(45) Equivalent & Substitute Parts

Part Overview

The UM-LR-PC(45) is a U.FL (UMCC) coaxial connector receptacle manufactured by Hirose Electric Co Ltd, designed for 50-ohm RF applications. This through-hole, right-angle solder connector operates at frequencies up to 3 GHz and is rated for 500 mating cycles. The part is currently in Last Time Buy status, indicating production discontinuation. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring this connector type.

Substiute Parts

UM-LR-PC(45)

Hirose Electric Co LtdIn Stock: 1080UM-LR-PC(45) Datasheet

Current PartRFQ

UM-LR-PC-A(41)

Hirose Electric Co LtdIn Stock: 954UM-LR-PC-A(41) Datasheet

MFR RecommendedRFQ

UM-LR-PC-4(40)

Hirose Electric Co LtdIn Stock: 1107UM-LR-PC-4(40) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UM-LR-PC(45) is determined by strict equivalence across the following critical parameters:

• Connector Style: U.FL (UMCC)
• Connector Type: Receptacle, Male Pin
• Impedance: 50 Ohms
• Mounting Type: Through Hole, Right Angle
• Contact and Shield Termination: Solder
• Frequency Rating: 3 GHz maximum
• Operating Temperature Range: -30°C ~ 85°C
• Mating Cycles: 500
• Dielectric Material: Polytetrafluoroethylene (PTFE)
• Body and Contact Materials: Brass with Gold finish and plating

The substitute parts identified maintain identical electrical and mechanical specifications across all provided parameters, ensuring direct functional equivalence in PCB-mounted RF applications.

Parameter Comparison

Engineering Selection Recommendations

The UM-LR-PC(45) is designated Last Time Buy, making transition to an active product necessary for ongoing procurement. Both substitute parts—UM-LR-PC-A(41) and UM-LR-PC-4(40)—maintain Active product status and are ROHS3 compliant with identical electrical and mechanical specifications.

UM-LR-PC-A(41) is the manufacturer-recommended substitute, offering direct functional equivalence with confirmed availability. UM-LR-PC-4(40) is a parametric equivalent providing identical performance characteristics and is currently in stock with higher inventory levels (1017 pcs vs. 886 pcs for UM-LR-PC-A(41)).

Selection between the two active alternatives should be based on procurement lead times, inventory requirements, and supply chain preferences, as both parts satisfy all electrical and mechanical requirements for U.FL (UMCC) 50-ohm RF applications.

Frequently Asked Questions (FAQ)

Q: Can UM-LR-PC-A(41) and UM-LR-PC-4(40) be used interchangeably with UM-LR-PC(45)?

A: Yes. Both substitute parts maintain identical specifications across all critical parameters: U.FL (UMCC) connector style, receptacle male pin configuration, 50-ohm impedance, through-hole right-angle solder termination, 3 GHz frequency rating, and -30°C to 85°C operating temperature range. Direct substitution is supported without design modification.

Q: What is the difference between UM-LR-PC-A(41) and UM-LR-PC-4(40)?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary distinction is product status: UM-LR-PC-A(41) is the manufacturer-recommended substitute, while UM-LR-PC-4(40) is an alternative equivalent. Inventory levels differ (886 pcs vs. 1017 pcs respectively). Selection should be based on supply chain availability and procurement timelines.

Q: Are there packaging differences between these parts?

A: UM-LR-PC(45) and UM-LR-PC-4(40) are packaged in bags. UM-LR-PC-A(41) packaging information is not specified in available data. Confirm packaging requirements with your procurement department if specific packaging is mandated for your application.

Q: Do all three parts meet RoHS compliance requirements?

A: Yes. UM-LR-PC(45), UM-LR-PC-A(41), and UM-LR-PC-4(40) are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting environmental and regulatory requirements for commercial and industrial RF applications.

Q: What is the mating cycle rating for these connectors?

A: All three parts are rated for 500 mating cycles, indicating durability suitable for applications requiring moderate connector engagement and disengagement cycles.