TS118 Telecom Interface IC Equivalent & Substitute Parts

Part Overview

The TS118 is a telecom interface relay switch IC in 8-DIP packaging manufactured by IXYS Integrated Circuits Division. This component functions as a relay switch with dual circuits for telecom applications, dissipating 800 mW and operating across the -40°C to 85°C temperature range. The TS118 is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

TS118

IXYS Integrated Circuits DivisionIn Stock: 776TS118 Datasheet

Current PartRFQ

TS117

LittelfuseIn Stock: 1159TS117 Datasheet

Parametric EquivalentRFQ

TS117L

IXYS Integrated Circuits DivisionIn Stock: 2186TS117L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TS118 is determined by strict equivalence across the following parameters:

• Function: Relay Switch
• Number of Circuits: 2
• Power Dissipation: 800 mW
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 8-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

The identified substitutes—TS117 and TS117L—match all critical electrical and mechanical parameters. Both parts are active products with confirmed inventory availability, providing direct functional replacement for the obsolete TS118.

Parameter Comparison

Engineering Selection Recommendations

Both TS117 and TS117L are qualified substitutes for the obsolete TS118 based on parametric equivalence and compliance certifications.

TS117 (Littelfuse): This part maintains full electrical and mechanical compatibility with the TS118. As an active product from an established manufacturer, it provides long-term availability and supply chain stability. ROHS3 compliance and REACH unaffected status confirm regulatory alignment.

TS117L (IXYS Integrated Circuits Division): This variant is manufactured by the original TS118 supplier, ensuring design continuity and proven compatibility. The TS117L is designated as a base product variant and carries identical electrical specifications and compliance certifications. Higher inventory levels (2112 units) support immediate procurement requirements.

Selection between TS117 and TS117L should be based on supply chain preferences, lead time requirements, and existing vendor relationships. Both parts are electrically and mechanically interchangeable with the TS118.

Frequently Asked Questions (FAQ)

Q: Can TS117 and TS117L be used interchangeably with TS118?

A: Yes. Both TS117 and TS117L are parametric equivalents to the TS118. They share identical electrical specifications (800 mW power dissipation, dual relay switch circuits), operating temperature range (-40°C to 85°C), and 8-DIP package configuration. Direct substitution is supported without circuit modification.

Q: What is the difference between TS117 and TS117L?

A: TS117 is manufactured by Littelfuse, while TS117L is manufactured by IXYS Integrated Circuits Division (the original TS118 supplier). Both parts are electrically identical and meet the same compliance standards. The primary distinction is manufacturer and packaging format (Littelfuse supplies in Tube; IXYS supplies in Tube).

Q: Why is the TS118 obsolete?

A: The TS118 has been discontinued by IXYS Integrated Circuits Division. The TS117 and TS117L represent the active product line replacements with equivalent functionality and specifications.

Q: Are there any compliance or regulatory differences between these parts?

A: No. All three parts—TS118, TS117, and TS117L—carry identical compliance certifications: ROHS3 Compliant, REACH Unaffected, MSL 1 (Unlimited), and the same ECCN and HTSUS classifications.

Q: What packaging options are available for substitutes?

A: Both TS117 and TS117L are supplied in Tube packaging. The 8-DIP (0.300", 7.62mm) package configuration is consistent across all three parts, ensuring PCB footprint compatibility.

Q: Which substitute should I select for new designs?

A: For new designs, either TS117 or TS117L is appropriate. TS117L is recommended if design continuity with the original IXYS supplier is preferred. TS117 is recommended if multi-source qualification or Littelfuse vendor relationships are established.