TE Connectivity 6-1617543-7 General Purpose Relay DPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity 6-1617543-7 is a general purpose relay with DPDT (Double Pole Double Throw) contact configuration, rated for 1A at 6VDC coil voltage. This through-hole mounted relay is designed for aerospace, defense, and marine applications requiring hermetically sealed switching contacts. The part is currently active in production with 823 units in stock.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives within the same electrical and mechanical parameter envelope.

Substiute Parts

6-1617543-7

TE Connectivity Aerospace, Defense and MarineIn Stock: 9036-1617543-7 Datasheet

Current PartRFQ

6-1617543-5

TE Connectivity Aerospace, Defense and MarineIn Stock: 9836-1617543-5 Datasheet

Parametric EquivalentRFQ

8-1617542-7

TE Connectivity Aerospace, Defense and MarineIn Stock: 9998-1617542-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6-1617543-7 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Coil voltage: 6VDC (exact match required)
• Contact form: DPDT (2 Form C) configuration
• Contact rating: 1 A minimum
• Switching voltage: 115VAC, 28VDC maximum capability
• Coil current: 30 mA
• Coil type: Non-latching operation
• Coil resistance: 200 Ohms

Mechanical Parameters:

• Mounting type: Through-hole only
• Termination style: PC pin configuration
• Seal rating: Hermetically sealed
• Operating temperature: -65°C to 125°C range
• Contact material: Silver Palladium (AgPd) and Gold (Au)

Functional Parameters:

• Relay type: General purpose
• Features: Integrated diode
• Operate time: 4 ms
• Release time: 7.5 ms
• Must operate voltage: 3.4 VDC
• Must release voltage: 0.28 VDC

All identified substitute parts meet these criteria without exception.

Parameter Comparison

Engineering Selection Recommendations

All three parts are manufactured by TE Connectivity Aerospace, Defense and Marine and maintain active product status. Selection between the main part and substitutes is based on compliance requirements and availability:

6-1617543-7 (Main Part): RoHS non-compliant. Select when legacy compliance status is acceptable or required by existing design specifications.

6-1617543-5 (Substitute): RoHS non-compliant. Electrically and mechanically identical to the main part. Provides alternative sourcing with higher inventory availability (956 units).

8-1617542-7 (Substitute): ROHS3 compliant. Electrically and mechanically identical to the main part. Provides ROHS3 compliance for designs requiring environmental regulation adherence. Highest inventory availability (987 units).

All parts carry REACH Unaffected status and EAR99 export classification. Selection should be based on compliance requirements of the end application and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can 6-1617543-5 be used as a direct replacement for 6-1617543-7?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters including coil voltage, contact form, current rating, switching voltage, operating temperature range, and termination style. The only difference is inventory availability.

Q: What is the difference between 8-1617542-7 and the other two parts?

A: The 8-1617542-7 is ROHS3 compliant, while 6-1617543-7 and 6-1617543-5 are RoHS non-compliant. All other electrical and mechanical parameters are identical. The series designation differs (MGA, CII versus MST, CII), but functional performance is equivalent.

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

A: Yes. All three parts are manufactured by TE Connectivity Aerospace, Defense and Marine and are rated for the operating temperature range of -65°C to 125°C with hermetic sealing. All carry EAR99 export classification and REACH Unaffected status.

Q: What is the coil voltage requirement for these relays?

A: All three parts require exactly 6VDC coil voltage. The must-operate voltage is 3.4 VDC and must-release voltage is 0.28 VDC. Coil current is 30 mA with 200 Ohms coil resistance.

Q: Can these relays switch higher voltages than 28VDC?

A: No. The maximum switching voltage is 115VAC or 28VDC. All three parts are rated identically for this parameter.

Q: What is the contact configuration of these relays?

A: All three parts feature DPDT (Double Pole Double Throw) contact configuration, also designated as 2 Form C. Contact rating is 1 A with silver palladium and gold contact materials.

Q: Are these relays latching or non-latching?

A: All three parts are non-latching relays. They require continuous coil energization to maintain contact position. Operate time is 4 ms and release time is 7.5 ms.

Q: What is the mounting configuration?

A: All three parts are through-hole mounted with PC pin termination style, suitable for direct PCB insertion and soldering.

Q: Do these relays include any protective features?

A: Yes. All three parts include an integrated diode for coil protection against back-EMF transients during de-energization.

Q: What is the moisture sensitivity level?

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