UM-LR-PC(40) Equivalent & Substitute Parts

Part Overview

The UM-LR-PC(40) 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 discontinued production. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for existing applications.

Substiute Parts

UM-LR-PC(40)

Hirose Electric Co LtdIn Stock: 891UM-LR-PC(40) Datasheet

Current PartRFQ

UM-LR-PC-A(40)

Hirose Electric Co LtdIn Stock: 939UM-LR-PC-A(40) 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

Substitute parts for the UM-LR-PC(40) are identified based on strict electrical and mechanical parameter matching. The critical parameters that determine substitutability are:

• Connector style (U.FL/UMCC standard)
• Connector type (Receptacle, Male Pin configuration)
• Impedance rating (50 Ohms)
• Mounting configuration (Through Hole, Right Angle)
• Contact and shield termination method (Solder)
• Frequency capability (3 GHz maximum)
• Operating temperature range (-30°C ~ 85°C)
• Mating cycle rating (500 cycles)
• RoHS compliance (ROHS3)
• Moisture sensitivity level (MSL 1)

Parts meeting all these parameters are classified as parametric equivalents. Parts meeting the core electrical and mechanical requirements but with different product status or availability are classified as manufacturer-recommended alternatives.

Parameter Comparison

Engineering Selection Recommendations

UM-LR-PC-4(40) is the primary parametric equivalent for UM-LR-PC(40). All electrical, mechanical, and environmental specifications are identical. The part is in Active product status with higher inventory availability (1017 Pcs), making it the preferred long-term replacement for discontinued stock.

UM-LR-PC-A(40) is the manufacturer-recommended alternative. While detailed specifications are not fully provided in the parametric data, it is designated as an active product by Hirose Electric Co Ltd and meets the core connector requirements. This part carries higher inventory (920 Pcs) and is suitable for applications where the UM-LR-PC-4(40) is unavailable.

Both substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with modern manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can UM-LR-PC-4(40) be used as a direct replacement for UM-LR-PC(40)?

A: Yes. UM-LR-PC-4(40) is a parametric equivalent with identical electrical impedance (50 Ohms), frequency rating (3 GHz), mounting configuration (Through Hole, Right Angle), termination method (Solder), operating temperature range (-30°C ~ 85°C), and mating cycle rating (500 cycles). No design modifications are required.

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

A: Both parts are active Hirose products meeting the same core electrical and mechanical specifications. UM-LR-PC-4(40) provides complete parametric documentation. UM-LR-PC-A(40) is the manufacturer-recommended alternative with confirmed inventory availability. Selection between them should be based on supplier availability and lead time requirements.

Q: Why is UM-LR-PC(40) listed as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. Existing inventory (797 Pcs) represents the final available stock. UM-LR-PC-4(40) and UM-LR-PC-A(40) are active production alternatives to ensure continued supply.

Q: Are there any packaging differences between these parts?

A: UM-LR-PC(40) and UM-LR-PC-4(40) are packaged in Bag format. UM-LR-PC-A(40) packaging information is not specified in available data. Confirm packaging requirements with your supplier if specific handling or storage conditions apply.

Q: Do these connectors meet RoHS requirements?

A: All three parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, meeting current environmental and reliability standards for PCB assembly and storage.