TN2-4.5V-3 Equivalent & Substitute Parts

Part Overview

The TN2-4.5V-3 is a general purpose relay manufactured by Panasonic Electric Works, featuring DPDT (2 Form C) contact configuration with 1 A contact rating and 4.5 VDC coil voltage. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The relay is designed for through-hole mounting with sealed construction and operates across -40°C to 70°C temperature range.

Substiute Parts

TN2-4.5V-3

Panasonic Electric WorksIn Stock: 885TN2-4.5V-3 Datasheet

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AGN2004H

Panasonic Electric WorksIn Stock: 35219AGN2004H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The AGN2004H qualifies as a direct substitute for the TN2-4.5V-3 based on the following critical parameters:

• Coil voltage: 4.5 VDC (identical)
• Contact form: DPDT (2 Form C) (identical)
• Contact rating: 1 A (identical)
• Switching voltage: 125 VAC, 110 VDC - Max (identical)
• Mounting type: Through hole (identical)
• Termination style: PC Pin (identical)
• Coil resistance: 145 Ohms (identical)
• Must operate voltage: 3.38 VDC (identical)
• Must release voltage: 0.45 VDC (identical)
• Seal rating: Sealed - Fully (identical)

The AGN2004H is classified as active product status with enhanced temperature range (-40°C to 85°C) and RoHS3 compliance, providing improved availability and regulatory alignment compared to the obsolete TN2-4.5V-3.

Parameter Comparison

Engineering Selection Recommendations

The AGN2004H is the appropriate substitute for the obsolete TN2-4.5V-3. Both relays share identical electrical and mechanical specifications across all critical parameters. The AGN2004H offers the following advantages:

• Active product status ensures long-term availability and supply chain continuity
• RoHS3 compliance aligns with current environmental and regulatory requirements
• Extended operating temperature range (-40°C to 85°C versus -40°C to 70°C) provides broader application flexibility
• Sealed construction and identical contact configuration maintain functional equivalence

The minor differences in operate and release time (4 ms versus 3 ms) fall within acceptable tolerances for general purpose relay applications and do not affect substitution suitability.

Frequently Asked Questions (FAQ)

Q: Can AGN2004H directly replace TN2-4.5V-3 in existing designs?

A: Yes. The AGN2004H meets all electrical and mechanical requirements of the TN2-4.5V-3, including coil voltage, contact configuration, current rating, and termination style. Both are through-hole mounted DPDT relays with identical switching voltage and coil resistance specifications.

Q: What are the differences between these two relays?

A: The primary differences are product status and compliance. The TN2-4.5V-3 is obsolete, while the AGN2004H is active. The AGN2004H includes RoHS3 compliance and operates across a wider temperature range (-40°C to 85°C). Operate and release times differ by 1 ms (4 ms versus 3 ms), which is not significant for general purpose applications.

Q: Are there packaging differences?

A: The TN2-4.5V-3 packaging is not specified in available data. The AGN2004H is supplied in tube packaging, which is standard for through-hole relay distribution.

Q: Does the AGN2004H meet the same regulatory requirements?

A: Both relays share identical REACH and ECCN classifications (REACH Unaffected, EAR99). The AGN2004H additionally carries RoHS3 compliance, meeting current environmental standards.

Q: Are the contact materials compatible?

A: Both relays use precious metal contact materials. The TN2-4.5V-3 uses Silver (Ag) and Gold (Au), while the AGN2004H uses Silver Palladium (AgPd) and Gold (Au). Both configurations are suitable for the specified 1 A switching application.