TE Connectivity 9-1617570-8 General Purpose Relay DPDT Equivalent & Substitute Parts

Part Overview

The TE Connectivity 9-1617570-8 is a general purpose relay with DPDT (Double Pole Double Throw) contact configuration, rated for 1 A switching current at 18 VDC coil voltage. This hermetically sealed, through-hole mounted relay is designed for aerospace, defense, and marine applications. The part is currently active in production with 725 pieces available in new original inventory condition.

Identification of equivalent and substitute parts becomes necessary when the primary part number is unavailable, when procurement lead times exceed project requirements, or when design flexibility permits selection from compatible alternatives within the same electrical and mechanical parameter envelope.

Substiute Parts

9-1617570-8

TE Connectivity Aerospace, Defense and MarineIn Stock: 7389-1617570-8 Datasheet

Current PartRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 9-1617570-8 relay is determined by strict alignment of the following critical parameters:

Electrical Parameters (Non-Negotiable):

• Contact form must be DPDT (2 Form C)
• Contact rating must be 1 A minimum
• Coil voltage must be 18 VDC
• Switching voltage capability must support 115 VAC and 28 VDC maximum
• Coil current must not exceed 11.3 mA
• Coil resistance must be 1.6 kOhms

Mechanical Parameters (Non-Negotiable):

• Mounting type must be Through Hole
• Termination style must be PC Pin
• Seal rating must be Sealed - Hermetically

Environmental & Operational Parameters:

• Operating temperature range must encompass -65°C to 125°C
• Must operate voltage must be 9.8 VDC or lower
• Must release voltage must be 0.92 VDC or lower
• Operate time must be 4 ms or faster
• Release time must be 7.5 ms or faster

Compliance Parameters:

• Contact material must include Silver Palladium (AgPd) and/or Gold (Au)
• Coil type must be Non Latching
• Features must include Diode protection

No substitute parts have been provided in the input parameters. Equivalent parts must meet all electrical, mechanical, environmental, and compliance criteria listed above without exception.

Parameter Comparison

No substitute parts are available for comparison. The input parameter set contains no alternative part numbers meeting the substitution criteria for the TE Connectivity 9-1617570-8.

To identify suitable equivalents, procurement and engineering teams must source parts from manufacturers offering DPDT general purpose relays with identical electrical specifications (18 VDC coil, 1 A contact rating, 1.6 kOhms coil resistance), matching mechanical configuration (through-hole PC pin termination, hermetically sealed), and equivalent environmental performance (-65°C to 125°C operating range).

Engineering Selection Recommendations

The TE Connectivity 9-1617570-8 maintains active product status with established supply availability (725 pieces in new original inventory). Selection of this part number is supported by:

Product Status: Active production status ensures continued availability and technical support from TE Connectivity Aerospace, Defense and Marine.

Compliance Posture: The part carries RoHS non-compliant designation. Applications requiring RoHS compliance must identify alternative part numbers explicitly certified as RoHS compliant.

Certifications & Standards: The part is classified under ECCN EAR99 and HTSUS 8536.41.0050, indicating compliance with export control and tariff classification requirements for aerospace, defense, and marine applications.

Moisture Sensitivity: MSL 1 (Unlimited) rating indicates no moisture sensitivity constraints during storage, handling, or assembly.

When substitute parts are required, selection must prioritize parts with identical electrical parameter specifications and equivalent environmental ratings. Compliance certifications must be verified against application requirements before substitution.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the TE Connectivity 9-1617570-8?

A: A valid substitute must match all specified electrical parameters (18 VDC coil voltage, 1 A contact rating, DPDT form, 1.6 kOhms coil resistance), mechanical configuration (through-hole PC pin termination, hermetically sealed), and environmental performance (-65°C to 125°C operating range). Contact material must include Silver Palladium and/or Gold. Coil type must be non-latching with integrated diode protection.

Q: Can relays with different coil voltages be substituted?

A: No. The 18 VDC coil voltage is a critical electrical parameter. Substitution with different coil voltages will result in improper relay operation, failure to energize, or circuit malfunction. Coil voltage must remain 18 VDC.

Q: Are surface-mount relays compatible with this through-hole design?

A: No. The TE Connectivity 9-1617570-8 specifies through-hole mounting with PC pin termination. Surface-mount alternatives require circuit board redesign and are not direct substitutes. Mounting type must remain through-hole.

Q: What is the significance of the hermetically sealed rating?

A: Hermetic sealing provides protection against moisture ingress and environmental contamination, critical for aerospace, defense, and marine applications. Substitute parts must maintain sealed - hermetically rating to preserve reliability in harsh environments.

Q: Does RoHS non-compliance affect substitution eligibility?

A: RoHS compliance status is application-dependent. If the end application requires RoHS compliance, substitute parts must carry explicit RoHS compliant certification. If RoHS compliance is not required, RoHS non-compliant parts remain eligible for substitution provided all electrical and mechanical parameters align.

Q: Can the coil current specification be exceeded in a substitute part?

A: No. The 11.3 mA coil current specification defines the maximum current draw from the control circuit. Substitute parts with higher coil current will impose excessive load on the control circuit, potentially causing circuit failure or improper relay operation. Coil current must not exceed 11.3 mA.

Q: What is the importance of the 1.6 kOhms coil resistance value?

A: Coil resistance directly determines coil current draw at the specified 18 VDC voltage. The 1.6 kOhms value ensures 11.3 mA current draw and proper relay energization. Substitute parts must maintain this coil resistance to ensure compatible circuit operation.

Q: Are there restrictions on contact material selection?

A: Contact material must include Silver Palladium (AgPd) and/or Gold (Au) to ensure electrical conductivity, corrosion resistance, and reliability in switching applications. Alternative contact materials are not acceptable substitutes.