RE032012 General Purpose Relay SPST 12VDC Equivalent & Substitute Parts

Part Overview

The RE032012 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays, configured as a Single Pole Single Throw Normally Open (SPST-NO) relay with a 12VDC coil and 6A contact rating. This component features through-hole mounting with PC pin termination and is rated for switching up to 400VAC maximum.

The RE032012 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production builds and field replacements. Active alternatives with compatible electrical and mechanical specifications are available from TE Connectivity and Panasonic Electric Works.

Substiute Parts

RE032012

TE Connectivity Potter & Brumfield RelaysIn Stock: 842RE032012 Datasheet

Current PartRFQ

1956226-1

TE Connectivity Potter & Brumfield RelaysIn Stock: 31071956226-1 Datasheet

DirectRFQ

DSP1A-DC12V

Panasonic Electric WorksIn Stock: 1386DSP1A-DC12V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RE032012 are classified based on electrical and mechanical compatibility within the following criteria:

Direct Equivalent Classification: Parts must maintain identical or functionally equivalent specifications across all critical parameters: 12VDC coil voltage, SPST-NO contact form, through-hole mounting, PC pin termination, non-latching coil type, and operating temperature range compatibility.

Acceptable Variation Parameters: Contact rating current may exceed the original specification (6A minimum required). Switching voltage may differ if the application voltage requirement is met. Coil resistance variation is acceptable within the constraints of standard coil design. Must operate and release voltages must remain within specified tolerances.

Classification Criteria:

• Direct Manufacturer Equivalent (1956226-1): Same manufacturer (TE Connectivity), identical electrical specifications, active product status, improved compliance certifications
• Similar Manufacturer Alternative (DSP1A-DC12V): Different manufacturer (Panasonic Electric Works), higher contact rating (8A vs 6A), compatible coil voltage and form factor, active product status

Parameter Comparison

Engineering Selection Recommendations

1956226-1 (TE Connectivity Potter & Brumfield Relays)

The 1956226-1 is the direct manufacturer equivalent to the RE032012. This part maintains identical electrical specifications including 12VDC coil voltage, 6A contact rating, 720 Ohm coil resistance, and identical must-operate and must-release voltage thresholds. The 1956226-1 is classified as active product status with improved compliance certifications (ROHS3 Compliant vs. RoHS Compliant) and REACH Affected designation. This part is the primary substitute for direct replacement applications.

DSP1A-DC12V (Panasonic Electric Works)

The DSP1A-DC12V is a similar manufacturer alternative with compatible 12VDC coil voltage and SPST-NO contact form. This part features an elevated contact rating of 8A, exceeding the original 6A specification. The DSP1A-DC12V operates within a reduced temperature range (-40°C ~ 60°C vs. -40°C ~ 70°C) and features a lower coil resistance of 480 Ohms. The switching voltage specification is reduced to 250VAC maximum. The must-operate voltage is elevated to 9.6VDC. This part is suitable for applications where the higher contact rating provides design margin and the reduced switching voltage and elevated must-operate voltage are compatible with the circuit design. The DSP1A-DC12V is active product status with ROHS3 Compliant certification and REACH Unaffected designation.

Frequently Asked Questions (FAQ)

Q: Can the 1956226-1 be used as a direct replacement for the RE032012?

A: Yes. The 1956226-1 maintains identical electrical and mechanical specifications to the RE032012, including coil voltage, contact form, contact rating, coil resistance, and timing characteristics. Both parts feature through-hole mounting with PC pin termination. The 1956226-1 is active product status with improved compliance certifications.

Q: What are the key differences between the 1956226-1 and DSP1A-DC12V?

A: The 1956226-1 is manufactured by TE Connectivity and maintains identical specifications to the RE032012. The DSP1A-DC12V is manufactured by Panasonic Electric Works and features a higher contact rating (8A vs. 6A), lower coil resistance (480 Ohms vs. 720 Ohms), reduced maximum switching voltage (250VAC vs. 400VAC), and elevated must-operate voltage (9.6VDC vs. 8.4VDC). Both parts share identical 12VDC coil voltage, SPST-NO contact form, and through-hole PC pin termination.

Q: Is the DSP1A-DC12V suitable for all applications using the RE032012?

A: The DSP1A-DC12V is suitable for applications where the circuit design accommodates the following parameter differences: elevated must-operate voltage (9.6VDC vs. 8.4VDC), reduced maximum switching voltage (250VAC vs. 400VAC), and reduced operating temperature upper limit (60°C vs. 70°C). The higher contact rating (8A) provides additional design margin for current-carrying capacity.

Q: What is the difference in coil resistance between these parts?

A: The RE032012 and 1956226-1 both feature 720 Ohm coil resistance. The DSP1A-DC12V features 480 Ohm coil resistance. Coil resistance affects the coil current draw and the voltage divider characteristics in the control circuit. The DSP1A-DC12V draws higher coil current (25 mA vs. 16.7 mA) due to the lower resistance.

Q: Are all three parts sealed relays?

A: The RE032012 and DSP1A-DC12V are specified as Sealed - Fully. The 1956226-1 seal rating is not specified in the available documentation.

Q: What compliance certifications apply to each part?

A: The RE032012 is RoHS Compliant. The 1956226-1 is ROHS3 Compliant and REACH Affected. The DSP1A-DC12V is ROHS3 Compliant and REACH Unaffected. All three parts are classified as EAR99 for export control purposes.

Q: Can the DSP1A-DC12V operate at the same temperature range as the RE032012?

A: The DSP1A-DC12V operates within -40°C ~ 60°C, while the RE032012 operates within -40°C ~ 70°C. Applications requiring operation above 60°C must use the RE032012 or 1956226-1.

Q: What contact materials are used in each relay?

A: The RE032012 features Silver Nickel (AgNi) and Gold (Au) contact material. The 1956226-1 features Silver Nickel (AgNi) contact material. The DSP1A-DC12V features Silver Tin Oxide (AgSnO) contact material. Contact material selection affects switching characteristics, contact resistance, and load-carrying capacity.