ARXP1112 Equivalent & Substitute Parts Reference

Part Overview

The ARXP1112 is a latching single-coil RF relay manufactured by Panasonic Electric Works, designed for 12VDC applications with SPDT contact configuration and 500mA switching capacity. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The relay features through-hole PC pin termination suitable for traditional PCB assembly methods.

Substiute Parts

ARXP1112

Panasonic Electric WorksIn Stock: 1007ARXP1112 Datasheet

Current PartRFQ

ARN12A12

Panasonic Electric WorksIn Stock: 806ARN12A12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The ARN12A12 qualifies as a functional substitute for the ARXP1112 based on the following critical parameters:

Matching Electrical Specifications:

• Coil voltage: 12VDC (identical)
• Contact form: SPDT (1 Form C) (identical)
• Contact material: Gold plating (identical)
• Must operate voltage: 9 VDC (identical)
• Operating temperature range: -40°C ~ 85°C (ARN12A12 extends upper limit by 15°C)
• Switching voltage capability: ARN12A12 rated for equivalent RF relay class

Functional Equivalence Basis: Both relays operate on 12VDC latching architecture with identical contact configuration. The ARN12A12 maintains the same electrical interface requirements and contact switching capability within the specified voltage and current parameters. The substitute part is manufactured by the same original equipment manufacturer, ensuring design compatibility and reliability standards.

Differences Requiring Consideration:

• Coil type: ARN12A12 uses dual-coil latching versus single-coil latching in ARXP1112
• Mounting: ARN12A12 is surface mount (Gull Wing) versus through-hole PC pin
• Termination: Gull wing termination requires different PCB layout and assembly process
• Operate/Release time: ARN12A12 operates at 5ms versus 10ms for ARXP1112
• Coil power: ARN12A12 requires 400mW versus 200mW for ARXP1112

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same PCB Assembly Method): The ARXP1112 is obsolete with 963 units currently in stock. If through-hole PC pin termination is required and cannot be modified, the ARN12A12 is not suitable without PCB redesign due to surface mount gull wing termination.

For New Designs or PCB Redesign Scenarios: The ARN12A12 is the recommended substitute when PCB layout can accommodate surface mount assembly. The ARN12A12 is active product status with 713 units in stock, RoHS compliant, and offers improved operating temperature range (-40°C ~ 85°C versus -40°C ~ 70°C). Faster switching times (5ms versus 10ms) may provide performance benefits in timing-critical applications.

Compliance Considerations: Both parts carry ECCN EAR99 classification and HTSUS 8536.41.0020 tariff code. The ARN12A12 provides RoHS compliance certification, which may be required for certain end-use applications or regional markets.

Frequently Asked Questions (FAQ)

Q: Can ARN12A12 be used as a direct drop-in replacement for ARXP1112?

A: No. While both relays share identical 12VDC coil voltage and SPDT contact configuration, the ARN12A12 uses surface mount gull wing termination versus the ARXP1112's through-hole PC pin termination. Direct substitution requires PCB redesign and different assembly processes.

Q: What are the key electrical differences between these two relays?

A: Both relays operate on 12VDC with 9VDC minimum operate voltage and SPDT contact switching. The ARN12A12 features faster switching (5ms operate/release time versus 10ms), higher coil power consumption (400mW versus 200mW), and extended operating temperature range (85°C maximum versus 70°C).

Q: Is the ARN12A12 suitable for applications requiring 500mA switching capacity?

A: The ARN12A12 contact current rating is not specified in available documentation. Verification against application requirements is necessary before selection.

Q: Why is the ARXP1112 obsolete?

A: Product status reflects manufacturer discontinuation. The ARN12A12 represents the active product line continuation from Panasonic Electric Works for 12VDC latching relay applications.

Q: Does the ARN12A12 require different drive circuitry than the ARXP1112?

A: The ARN12A12 uses dual-coil latching architecture versus single-coil latching in the ARXP1112. This requires different control logic and drive circuit implementation. Coil resistance differs (360 Ohms versus 720 Ohms), affecting current requirements.

Q: What is the inventory status for these parts?

A: ARXP1112 has 963 units in stock (obsolete status). ARN12A12 has 713 units in stock (active product).