TE Connectivity 3-1617351-3 General Purpose Relay SPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3-1617351-3 is a general purpose relay with Single Pole Double Throw (SPDT) contact configuration, rated for 1 A at 26.5 VDC coil voltage. This hermetically sealed, through-hole mounted relay operates across the temperature range of -65°C to 125°C and is designed for aerospace, defense, and marine applications. The part is currently active in production status with 889 pieces available in inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the relay's critical operating specifications, including coil voltage, contact rating, contact form, switching voltage, operating temperature range, and termination style. Substitution becomes necessary when the primary part number reaches end-of-life status, inventory constraints occur, or design flexibility is required across compatible part variants within the same series.

Substiute Parts

3-1617351-3

TE Connectivity Aerospace, Defense and MarineIn Stock: 9123-1617351-3 Datasheet

Current PartRFQ

2-1617541-3

TE Connectivity Aerospace, Defense and MarineIn Stock: 8712-1617541-3 Datasheet

Parametric EquivalentRFQ

J1MSW-26XM

TE Connectivity Aerospace, Defense and MarineIn Stock: 1127J1MSW-26XM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 3-1617351-3 are qualified based on electrical and mechanical parameter equivalence within the 1MS and CII series family. The substitution logic is based on the following critical parameters that must remain constant:

Electrical Parameters:

• Coil voltage: 26.5 VDC
• Contact form: SPDT (1 Form C)
• Contact rating: 1 A
• Switching voltage: 115 VAC, 28 VDC - Max
• Coil current: 6.6 mA
• Coil resistance: 4 kOhms
• Must operate voltage: 14.2 VDC
• Must release voltage: 1.37 VDC
• Operate time: 4 ms
• Release time: 2.5 ms

Mechanical Parameters:

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

Compliance Parameters:

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

Parts meeting all these criteria are classified as parametric equivalents and direct substitutes for the main part number.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—3-1617351-3, 2-1617541-3, and J1MSW-26XM—are active production relays manufactured by TE Connectivity Aerospace, Defense and Marine within the 1MS and CII series family. Each part maintains identical electrical and mechanical specifications, including coil voltage, contact configuration, current rating, switching voltage, operating temperature range, and hermetic sealing.

Compliance and Regulatory Status: All three parts share identical compliance profiles: RoHS non-compliant, REACH Unaffected, and Moisture Sensitivity Level 1 (Unlimited). This consistency ensures that substitution does not introduce regulatory or compliance complications in aerospace, defense, and marine applications.

Inventory Availability: The J1MSW-26XM variant currently maintains the highest inventory level at 1,071 pieces, followed by 3-1617351-3 at 889 pieces, and 2-1617541-3 at 764 pieces. Selection based on availability does not compromise electrical or mechanical performance.

Base Product Number Variants: The three part numbers represent different base product variants (J1MSC, J1MSP, and J1MSW) within the same relay series. These variants are interchangeable at the functional level based on the provided electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can the 2-1617541-3 be used as a direct replacement for the 3-1617351-3?

A: Yes. The 2-1617541-3 is a parametric equivalent with identical coil voltage (26.5 VDC), contact form (SPDT), current rating (1 A), switching voltage (115 VAC, 28 VDC - Max), operating temperature range (-65°C to 125°C), and all other critical electrical and mechanical specifications. Both parts are active production items from TE Connectivity Aerospace, Defense and Marine within the 1MS and CII series.

Q: What is the difference between the J1MSW-26XM and the 3-1617351-3?

A: The J1MSW-26XM and 3-1617351-3 are functionally equivalent relays with identical electrical and mechanical parameters. The primary difference is the base product number designation (J1MSW versus J1MSC), which reflects internal TE Connectivity product line organization. Both parts operate at 26.5 VDC coil voltage, handle 1 A contact current, and maintain hermetic sealing across the -65°C to 125°C temperature range.

Q: Are all three parts suitable for aerospace and defense applications?

A: Yes. All three part numbers are manufactured by TE Connectivity Aerospace, Defense and Marine and are classified as active production parts. Each maintains hermetic sealing, operates across the extended temperature range of -65°C to 125°C, and carries identical REACH and RoHS compliance status. The parts are suitable for aerospace, defense, and marine environments.

Q: Does substitution affect PCB layout or footprint?

A: No. All three parts share identical mounting type (Through Hole) and termination style (PC Pin), ensuring that PCB layout and footprint compatibility are maintained across substitutions. No design modifications are required when switching between these part numbers.

Q: What is the coil resistance specification for these relays?

A: All three relays maintain a coil resistance of 4 kOhms at 26.5 VDC coil voltage. This specification is consistent across 3-1617351-3, 2-1617541-3, and J1MSW-26XM.

Q: Are these relays RoHS compliant?

A: No. All three part numbers are RoHS non-compliant. This status is consistent across the entire substitute group and does not change when switching between part numbers.

Q: What is the operating time specification for these relays?

A: The operate time is 4 milliseconds and the release time is 2.5 milliseconds for all three part numbers. These timing specifications are identical across 3-1617351-3, 2-1617541-3, and J1MSW-26XM.

Q: Can these relays be used in high-temperature applications?

A: Yes. All three relays are rated for operation across the temperature range of -65°C to 125°C, making them suitable for high-temperature aerospace and defense applications. The upper temperature limit of 125°C is maintained consistently across all substitute parts.