JTN1AS-TMP-F-DC12V Equivalent & Substitute Parts

Part Overview

The JTN1AS-TMP-F-DC12V is a general purpose relay manufactured by Panasonic Electric Works, configured as a Single Pole Single Throw Normally Open (SPST-NO) contact form with a 12VDC coil. This through-hole mounted relay is rated for 30A continuous contact current and 277VAC maximum switching voltage, designed for industrial control and switching applications. The product is currently obsolete, making equivalent substitute parts necessary for ongoing maintenance, repair, and new design implementations where this relay specification remains applicable.

Substiute Parts

JTN1AS-TMP-F-DC12V

Panasonic Electric WorksIn Stock: 6310JTN1AS-TMP-F-DC12V Datasheet

Current PartRFQ

T9AS1D22-12

TE Connectivity Potter & Brumfield RelaysIn Stock: 2466T9AS1D22-12 Datasheet

SimilarRFQ

T9AS1D27-12

TE Connectivity Potter & Brumfield RelaysIn Stock: 1189T9AS1D27-12 Datasheet

SimilarRFQ

T9AS1L22-12

TE Connectivity Potter & Brumfield RelaysIn Stock: 702T9AS1L22-12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the JTN1AS-TMP-F-DC12V is determined by the following critical parameters:

Primary Matching Criteria:

• Contact Form: SPST-NO (1 Form A)
• Coil Voltage: 12VDC
• Mounting Type: Through Hole
• Termination Style: PC Pin, Quick Connect - 0.250" (6.3mm)
• Operating Temperature Range: -55°C ~ 85°C
• Seal Rating: Sealed - Fully

Secondary Compatibility Parameters:

• Contact Rating (Current): 30A minimum
• Switching Voltage: 277VAC or higher
• Coil Insulation: Class F
• Coil Type: Non Latching

The three substitute parts listed (T9AS1D22-12, T9AS1D27-12, T9AS1L22-12) are all manufactured by TE Connectivity Potter & Brumfield Relays from the T9A series. All three maintain identical contact form, coil voltage, mounting configuration, and termination style. Two of the three substitutes (T9AS1D22-12 and T9AS1L22-12) match the 30A contact rating and 277VAC switching voltage specification. T9AS1D27-12 provides a 21A contact rating with 250VAC switching voltage, representing a reduced current capacity option.

Parameter Comparison

Engineering Selection Recommendations

T9AS1D22-12 (Primary Substitute)

This part provides full electrical and mechanical compatibility with the JTN1AS-TMP-F-DC12V. It maintains identical contact rating (30A), switching voltage (277VAC maximum), and all critical interface parameters. The T9AS1D22-12 is currently in active production status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. Coil current is slightly elevated at 83mA compared to the original 66.7mA, and operate/release times are marginally faster (15ms vs. 20ms/10ms). These differences are within acceptable tolerance for general purpose relay applications.

T9AS1L22-12 (Primary Substitute - Alternative)

This substitute also provides full electrical compatibility with identical 30A contact rating and 277VAC switching voltage. The T9AS1L22-12 offers intermediate coil current (75mA) between the original and T9AS1D22-12, with faster switching times (15ms operate/release). Active production status and ROHS3 compliance support long-term deployment. Selection between T9AS1D22-12 and T9AS1L22-12 depends on coil current budget and switching speed requirements.

T9AS1D27-12 (Reduced Capacity Substitute)

This part is suitable only for applications where contact current requirements do not exceed 21A and switching voltage does not exceed 250VAC nominal. While maintaining all other mechanical and interface compatibility, the reduced electrical ratings restrict its use to lower-power switching circuits. Active production status and ROHS3 compliance are maintained.

Frequently Asked Questions (FAQ)

Q: Can T9AS1D22-12 or T9AS1L22-12 be used as direct replacements for JTN1AS-TMP-F-DC12V in existing designs?

A: Yes, both T9AS1D22-12 and T9AS1L22-12 provide full electrical and mechanical compatibility. Identical contact form (SPST-NO), coil voltage (12VDC), mounting type (through hole), and termination style (PC Pin, Quick Connect - 0.250") ensure direct PCB compatibility. Contact ratings (30A) and switching voltage (277VAC maximum) match or exceed the original specification.

Q: What are the differences in coil current between the original and substitute parts?

A: The JTN1AS-TMP-F-DC12V draws 66.7mA coil current. T9AS1D22-12 draws 83mA, and T9AS1L22-12 draws 75mA. These differences reflect design variations between manufacturers but remain within typical relay coil current tolerances. Circuit designs must accommodate the higher coil current draw of the TE Connectivity substitutes.

Q: Why is T9AS1D27-12 listed as a substitute if it has lower current rating?

A: T9AS1D27-12 is listed as a substitute for applications where the 21A contact rating and 250VAC switching voltage are sufficient. It maintains all mechanical and interface compatibility but is restricted to lower-power switching circuits. Use this part only when circuit current requirements do not exceed 21A.

Q: Are there packaging differences between these substitutes?

A: T9AS1D22-12 and T9AS1L22-12 are supplied in bulk packaging, while T9AS1D27-12 is supplied in tray packaging. These packaging differences do not affect electrical or mechanical compatibility but may influence procurement and handling procedures.

Q: What is the impact of switching time differences?

A: The original JTN1AS-TMP-F-DC12V has operate time of 20ms and release time of 10ms. All three TE Connectivity substitutes have operate and release times of 15ms each. These faster switching characteristics are generally beneficial for control applications but should be verified if timing-critical circuits depend on the original slower response.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original JTN1AS-TMP-F-DC12V is RoHS Compliant. All three substitute parts (T9AS1D22-12, T9AS1D27-12, T9AS1L22-12) are ROHS3 Compliant, meeting current regulatory requirements.

Q: What is the difference in contact material between the original and substitutes?

A: The JTN1AS-TMP-F-DC12V uses Silver Tin Oxide (AgSnO) contact material. All three TE Connectivity substitutes use Silver Cadmium Oxide (AgCdO). Both materials are suitable for general purpose relay applications with similar electrical performance characteristics.