TE Connectivity J1MSW-12XP General Purpose Relay SPDT Equivalent & Substitute Parts

Part Overview

The J1MSW-12XP is a general purpose relay manufactured by TE Connectivity Aerospace, Defense and Marine. This SPDT (Single Pole Double Throw) relay operates at 12VDC with a 1 ampere contact rating and is designed for through-hole mounting applications. The relay features hermetically sealed construction with silver palladium and gold contact materials, suitable for aerospace, defense, and marine environments.

The J1MSW-12XP maintains active product status with 957 pieces in current inventory. Substitute part identification becomes necessary when addressing specific application requirements, managing supply chain alternatives, or accommodating design revisions while maintaining electrical and mechanical compatibility.

Substiute Parts

J1MSW-12XP

TE Connectivity Aerospace, Defense and MarineIn Stock: 1036J1MSW-12XP Datasheet

Current PartRFQ

J1MSC-12XL

TE Connectivity Aerospace, Defense and MarineIn Stock: 933J1MSC-12XL Datasheet

Parametric EquivalentRFQ

J1MSP-12XM

TE Connectivity Aerospace, Defense and MarineIn Stock: 765J1MSP-12XM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The J1MSW-12XP qualifies for substitution with J1MSC-12XL and J1MSP-12XM based on strict electrical and mechanical parameter equivalence. All three relays share identical specifications across the following critical parameters:

Electrical Equivalence Criteria:

• Coil voltage: 12VDC
• Contact form: SPDT (1 Form C)
• Contact rating: 1 A
• Switching voltage: 115VAC, 28VDC - Max
• Coil current: 11.7 mA
• Coil type: Non Latching
• Coil resistance: 1.025 kOhms
• Must operate voltage: 7 VDC
• Must release voltage: 0.63 VDC
• Operate time: 4 ms
• Release time: 2.5 ms

Mechanical Equivalence Criteria:

• Mounting type: Through Hole
• Termination style: PC Pin
• Seal rating: Sealed - Hermetically
• Operating temperature range: -65°C ~ 125°C
• Contact material: Silver Palladium (AgPd), Gold (Au)

Compliance Equivalence:

• Series: 1MS, CII
• Product status: Active
• RoHS status: RoHS non-compliant
• Moisture sensitivity level: 1 (Unlimited)
• REACH status: REACH Unaffected
• ECCN: EAR99

All substitute parts belong to the TE Connectivity Aerospace, Defense and Marine manufacturer family and maintain identical functional performance within the specified electrical and environmental parameters.

Parameter Comparison

Engineering Selection Recommendations

All three relays—J1MSW-12XP, J1MSC-12XL, and J1MSP-12XM—are functionally equivalent for applications requiring 12VDC SPDT general purpose relays with 1 ampere contact rating and hermetically sealed construction. Selection between these parts is based on availability and supply chain considerations rather than electrical or mechanical performance differences.

Product Status: All three parts maintain active product status with TE Connectivity Aerospace, Defense and Marine, ensuring continued support and availability.

Compliance Posture: All substitute parts share identical compliance classifications:

• RoHS non-compliant status
• REACH Unaffected designation
• EAR99 ECCN classification
• Moisture Sensitivity Level 1 (Unlimited)

Inventory Availability: The J1MSW-12XP maintains the highest inventory level at 957 pieces. The J1MSC-12XL provides 857 pieces, and the J1MSP-12XM offers 687 pieces in current stock. Selection may be driven by immediate availability requirements or long-term supply chain strategy.

Application Compatibility: These relays are suitable for aerospace, defense, and marine applications requiring hermetically sealed construction and extended operating temperature ranges from -65°C to 125°C. The silver palladium and gold contact materials provide reliable performance across the specified switching voltage range of 115VAC and 28VDC maximum.

Frequently Asked Questions (FAQ)

Q: Can J1MSC-12XL and J1MSP-12XM be used interchangeably with J1MSW-12XP in existing designs?

A: Yes. All three relays share identical electrical specifications, mechanical mounting characteristics, and environmental ratings. Direct substitution is supported without circuit modification or performance degradation.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by coil voltage (12VDC), contact form (SPDT), contact rating (1 A), switching voltage (115VAC, 28VDC - Max), coil current (11.7 mA), coil resistance (1.025 kOhms), and timing specifications (4 ms operate, 2.5 ms release).

Q: Are there differences in contact material composition between these relays?

A: No. All three relays utilize identical contact materials: Silver Palladium (AgPd) and Gold (Au). Contact material composition does not differentiate these parts.

Q: Do these relays require different mounting or termination approaches?

A: No. All three relays employ through-hole mounting with PC pin termination. PCB layout and mounting procedures remain identical across all substitute parts.

Q: What is the operating temperature capability of these relays?

A: All three relays operate across the identical temperature range of -65°C to 125°C, supporting aerospace, defense, and marine applications requiring extended thermal performance.

Q: Are there compliance or regulatory differences between these substitute parts?

A: No. All three relays share identical compliance status: RoHS non-compliant, REACH Unaffected, EAR99 ECCN classification, and Moisture Sensitivity Level 1 (Unlimited).

Q: How do the coil voltage specifications compare across these relays?

A: All three relays operate at 12VDC with identical must-operate voltage (7 VDC) and must-release voltage (0.63 VDC) thresholds, ensuring consistent control circuit performance.

Q: What sealing characteristics do these relays provide?

A: All three relays feature hermetically sealed construction, providing protection against moisture ingress and environmental contamination suitable for harsh aerospace, defense, and marine environments.

Q: Can these relays be used in applications requiring high-frequency switching?

A: The switching performance is defined by the specified operate time (4 ms) and release time (2.5 ms). All three relays share identical timing characteristics and are suitable for applications within these switching speed parameters.

Q: Are there any differences in the base product numbers?

A: The base product numbers differ (J1MSW, J1MSC, J1MSP), but these designations do not affect electrical or mechanical compatibility. The suffix designations (-12XP, -12XL, -12XM) indicate packaging or configuration variants that do not impact functional performance.