TE Connectivity 7-1617533-1 General Purpose Relay DPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity 7-1617533-1 is a general purpose relay with DPDT (Double Pole Double Throw) contact configuration, rated for 2A switching capacity at 5VDC coil voltage. This through-hole mounted component is designed for aerospace, defense, and marine applications requiring hermetically sealed relay operation across extended temperature ranges. The part maintains active product status with 1092 units currently in stock. Substitute parts are identified to address inventory availability, supply chain continuity, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

7-1617533-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 11467-1617533-1 Datasheet

Current PartRFQ

3-1617033-9

TE Connectivity Aerospace, Defense and MarineIn Stock: 8283-1617033-9 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7-1617533-1 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Coil voltage: 5VDC (exact match required)
• Contact form: DPDT (2 Form C) configuration
• Contact current rating: 2 A minimum
• Switching voltage capability: 115VAC, 28VDC maximum
• Coil resistance: 27 Ohms
• Coil type: Non-latching operation

Mechanical Compatibility Parameters:

• Mounting type: Through-hole configuration
• Termination style: PC pin connection
• Seal rating: Hermetically sealed
• Operating temperature range: -65°C to 125°C minimum

Compliance Parameters:

• Series designation: HFW, CII
• Manufacturer: TE Connectivity Aerospace, Defense and Marine
• RoHS status: Non-compliant (matching requirement)
• REACH status: Unaffected
• ECCN classification: EAR99

The substitute part 3-1617033-9 meets all specified parameters and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the 7-1617533-1 and 3-1617033-9 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 criteria:

Primary Selection Criteria:

• Both parts maintain active product status and are suitable for new designs and production applications
• Both parts carry identical RoHS non-compliant status, REACH unaffected designation, and EAR99 ECCN classification
• Both parts are classified as MSL 1 (Unlimited moisture sensitivity level), indicating no special moisture handling requirements
• Inventory availability: 7-1617533-1 has 1092 units in stock; 3-1617033-9 has 770 units in stock

Application Compatibility:

• Direct substitution is permissible in all circuit applications where the 7-1617533-1 is specified
• No circuit redesign or board layout modification is required when substituting between these parts
• Both parts operate identically across the full -65°C to 125°C temperature range
• Both parts maintain hermetic sealing and identical switching performance characteristics

Compliance Considerations:

• Applications subject to RoHS compliance requirements must address the non-compliant status of both parts through appropriate exemptions or alternative component selection
• REACH compliance is unaffected for both parts
• Export control classification (EAR99) applies uniformly to both parts

Frequently Asked Questions (FAQ)

Q: Can the 3-1617033-9 be used as a direct replacement for the 7-1617533-1 in existing designs?

A: Yes. The 3-1617033-9 is a parametric equivalent with identical electrical and mechanical specifications. No circuit modifications, board layout changes, or firmware updates are required. The parts are pin-compatible and functionally interchangeable.

Q: Are there any differences in switching performance between these two relays?

A: No. Both parts have identical operate time (4 ms), release time (4 ms), must-operate voltage (2.7 VDC), and must-release voltage (0.29 VDC). Switching performance is equivalent across all specified operating conditions.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both parts are hermetically sealed, operate across -65°C to 125°C, carry MSL 1 rating, and share identical RoHS non-compliant status, REACH unaffected designation, and EAR99 ECCN classification. Compliance requirements apply uniformly to both parts.

Q: What is the difference between the base product numbers 1617533 and 1617033?

A: The base product numbers identify different part variants within the TE Connectivity HFW/CII relay series. Despite different base numbers, the 7-1617533-1 and 3-1617033-9 are parametric equivalents with identical specifications and are fully interchangeable.

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

A: Both parts are manufactured by TE Connectivity Aerospace, Defense and Marine and are designed for aerospace, defense, and marine applications. Hermetic sealing and extended temperature range support operation in demanding environments. Application-specific qualification and certification requirements must be addressed through appropriate design review and testing protocols.

Q: Are there any inventory or lead time considerations when selecting between these parts?

A: The 7-1617533-1 has higher current inventory (1092 units) compared to the 3-1617033-9 (770 units). For applications with immediate delivery requirements, the 7-1617533-1 may offer shorter lead times. Both parts are active products with ongoing manufacturing support.

Q: What is the coil resistance specification, and why is it important?

A: Both parts have 27 Ohms coil resistance. This specification determines the coil current draw (185.2 mA at 5VDC) and is critical for power supply design and circuit protection calculations. Identical coil resistance ensures equivalent power consumption and thermal characteristics.

Q: Are these relays suitable for high-frequency switching applications?

A: Both relays have 4 ms operate and release times, which limits switching frequency to approximately 125 Hz maximum. These parts are classified as general purpose relays and are not designed for high-frequency switching applications. Applications requiring faster switching should specify alternative relay types.