TN2-L2-12V Equivalent & Substitute Parts

Part Overview

The Panasonic Electric Works TN2-L2-12V is a general purpose relay with DPDT (2 Form C) contact configuration rated for 1 A at 12VDC. This component features a latching dual coil design with through-hole PC pin termination and is fully sealed. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

TN2-L2-12V

Panasonic Electric WorksIn Stock: 2182TN2-L2-12V Datasheet

Current PartRFQ

V23079B1203B301

TE Connectivity Potter & Brumfield RelaysIn Stock: 3801V23079B1203B301 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TN2-L2-12V is determined by the following critical parameters:

• Coil Voltage: Must be 12VDC to ensure direct compatibility with existing circuit designs
• Contact Form: Must be DPDT (2 Form C) to maintain identical switching functionality
• Coil Type: Must be latching dual coil to preserve operational behavior
• Mounting Type: Must be through hole with PC pin termination for PCB compatibility
• Must Operate Voltage: Minimum 9VDC ensures reliable activation in the same electrical environment

The V23079B1203B301 from TE Connectivity Potter & Brumfield Relays meets these core substitution criteria. While the substitute part offers higher contact current rating (2 A versus 1 A) and extended temperature range (-40°C ~ 85°C versus -40°C ~ 70°C), these represent improvements that do not compromise compatibility. The substitute maintains identical coil voltage, contact form, coil type, and mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

The V23079B1203B301 is the qualified substitute for the obsolete TN2-L2-12V. Selection is based on the following factors:

Product Status: The TN2-L2-12V is obsolete, necessitating transition to an active product. The V23079B1203B301 maintains active status with established supply chain availability.

Compliance and Certifications: Both parts share identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring regulatory equivalence. The substitute carries RoHS3 compliance, meeting current environmental standards.

Functional Equivalence: The substitute maintains all critical electrical parameters: 12VDC coil voltage, DPDT contact form, latching dual coil configuration, and through-hole PC pin termination. These parameters ensure direct functional replacement in existing circuit designs.

Performance Characteristics: The substitute offers enhanced specifications including higher contact current rating (2 A versus 1 A), extended temperature range (-40°C ~ 85°C versus -40°C ~ 70°C), and lower coil current draw (11.7 mA versus 16.7 mA). These improvements provide design margin without introducing incompatibility.

Timing Considerations: The substitute exhibits slightly longer operate and release times (4 ms versus 3 ms). Applications with strict timing requirements must evaluate this 1 ms difference against system performance specifications.

Frequently Asked Questions (FAQ)

Q: Can the V23079B1203B301 directly replace the TN2-L2-12V in existing designs?

A: Yes. Both relays share identical coil voltage (12VDC), contact form (DPDT), coil type (latching dual coil), mounting type (through hole), and termination style (PC pin). Direct substitution is supported for applications operating within the original temperature range of -40°C ~ 70°C.

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

A: The primary differences are contact current rating (1 A versus 2 A), switching voltage capability (125VAC/110VDC versus 250VAC/220VDC), operating temperature range (-40°C ~ 70°C versus -40°C ~ 85°C), and timing characteristics (3 ms versus 4 ms for operate and release). The substitute also features lower coil current consumption (11.7 mA versus 16.7 mA).

Q: Does the higher contact current rating of the substitute affect compatibility?

A: No. A higher current rating does not compromise compatibility. The substitute can safely handle the 1 A load specified for the original part. The increased rating provides additional design margin for future applications.

Q: Are there any temperature-related considerations for substitution?

A: The substitute supports an extended temperature range (-40°C ~ 85°C versus -40°C ~ 70°C). Applications operating at temperatures above 70°C benefit from this extended range. Applications within the original range experience no adverse effects.

Q: How do the timing differences affect circuit operation?

A: The substitute exhibits 1 ms longer operate and release times (4 ms versus 3 ms). For applications with timing-critical functions, this difference must be evaluated against system specifications. Most general purpose relay applications tolerate this timing variation.

Q: What is the packaging difference between these parts?

A: The original TN2-L2-12V is supplied in standard packaging. The substitute V23079B1203B301 is supplied in tube packaging, which is standard for TE Connectivity products and does not affect component functionality.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both parts are REACH Unaffected and classified as EAR99. The substitute additionally carries RoHS3 compliance, meeting current environmental standards for new designs.