J1MSWT-26XP Equivalent & Substitute Parts

Part Overview

The J1MSWT-26XP is a general purpose relay manufactured by TE Connectivity Aerospace, Defense and Marine. This SPDT (Single Pole Double Throw) relay operates at 26.5VDC coil voltage with a 1 A contact rating and is designed for through-hole mounting applications. The relay features hermetic sealing, integrated diode protection, and operates across an extended temperature range of -65°C to 125°C, making it suitable for aerospace, defense, and marine environments.

The J1MSWT-26XP is classified as an active product with 663 units currently in stock. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when design flexibility is required within the same electrical and mechanical specifications.

Substiute Parts

J1MSWT-26XP

TE Connectivity Aerospace, Defense and MarineIn Stock: 725J1MSWT-26XP Datasheet

Current PartRFQ

J1MACT-26XPS

TE Connectivity Aerospace, Defense and MarineIn Stock: 979J1MACT-26XPS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the J1MSWT-26XP is determined by electrical and mechanical parameter equivalence. The substitute part J1MACT-26XPS is classified as a parametric equivalent based on the following critical parameters:

Electrical Equivalence Criteria:

• Identical coil voltage: 26.5VDC
• Identical contact form: SPDT (1 Form C)
• Identical contact rating: 1 A
• Identical switching voltage: 115VAC, 28VDC - Max
• Identical coil current: 13.3 mA
• Identical coil type: Non Latching
• Identical coil resistance: 2 kOhms
• Identical must operate voltage: 14.4 VDC
• Identical must release voltage: 1.25 VDC
• Identical operate time: 2 ms
• Identical release time: 4 ms

Mechanical Equivalence Criteria:

• Identical mounting type: Through Hole
• Identical termination style: PC Pin
• Identical seal rating: Sealed - Hermetically
• Identical contact material: Silver Palladium (AgPd), Gold (Au)

Environmental Equivalence Criteria:

• Identical operating temperature range: -65°C ~ 125°C
• Identical moisture sensitivity level: 1 (Unlimited)

The substitute part differs only in series designation (1MA versus 1MS) and base product number (J1MAC versus J1MSW), with no impact on functional performance or application compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the J1MSWT-26XP and J1MACT-26XPS are active products manufactured by TE Connectivity Aerospace, Defense and Marine with identical electrical and mechanical specifications. Selection between these parts is based on the following engineering considerations:

Compliance and Regulatory Status: Both parts share identical compliance profiles: RoHS non-compliant, REACH Unaffected, ECCN EAR99, and HTSUS 8536.41.0050. No regulatory advantage exists between the two options.

Product Availability: The J1MACT-26XPS currently has higher inventory availability (928 units) compared to the J1MSWT-26XP (663 units). This may influence selection based on supply chain requirements.

Functional Equivalence: All critical electrical parameters, timing characteristics, environmental ratings, and contact specifications are identical. The parts are functionally interchangeable in applications requiring a 26.5VDC SPDT general purpose relay with 1 A contact rating and hermetic sealing.

Series and Base Product Designation: The J1MSWT-26XP belongs to the 1MS series with base product number J1MSW, while the J1MACT-26XPS belongs to the 1MA series with base product number J1MAC. These designations reflect internal TE Connectivity product line organization and do not affect performance or compatibility.

Frequently Asked Questions (FAQ)

Q: Can the J1MACT-26XPS be used as a direct replacement for the J1MSWT-26XP?

A: Yes. The J1MACT-26XPS is a parametric equivalent with identical electrical specifications, contact ratings, coil characteristics, timing parameters, operating temperature range, and mechanical mounting configuration. Direct substitution is supported for applications requiring a 26.5VDC SPDT general purpose relay.

Q: Are there any differences in contact material or sealing between these parts?

A: No. Both parts feature identical contact material composition (Silver Palladium and Gold) and hermetic sealing. Environmental protection and electrical performance are equivalent.

Q: What is the significance of the different series designations (1MS versus 1MA)?

A: The series designation reflects TE Connectivity's internal product line classification. The 1MS and 1MA series share identical electrical and mechanical specifications for this relay configuration. The series difference does not impact functional performance or application compatibility.

Q: Do both parts meet the same regulatory and compliance requirements?

A: Yes. Both the J1MSWT-26XP and J1MACT-26XPS share identical compliance status: RoHS non-compliant, REACH Unaffected, ECCN EAR99, and HTSUS 8536.41.0050. No regulatory distinction exists between the parts.

Q: Are the coil resistance and operating voltage characteristics identical?

A: Yes. Both parts have 2 kOhms coil resistance, 26.5VDC coil voltage, 13.3 mA coil current, 14.4 VDC must operate voltage, and 1.25 VDC must release voltage. Switching performance and timing (2 ms operate time, 4 ms release time) are identical.

Q: What is the moisture sensitivity level for these relays?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can these relays be used in aerospace and defense applications?

A: Yes. Both parts are manufactured by TE Connectivity Aerospace, Defense and Marine and are rated for the extended temperature range of -65°C to 125°C with hermetic sealing, making them suitable for aerospace, defense, and marine environments.