KTY83/120,113 Equivalent & Substitute Parts

Part Overview

The KTY83/120,113 is a PTC thermistor with 1 kOhm resistance at 25°C, packaged in DO-204AG (DO-34) axial configuration for through-hole mounting. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

KTY83/120,113

NXP USA Inc.In Stock: 1163KTY83/120,113 Datasheet

Current PartRFQ

KTY81/120,112

NXP USA Inc.In Stock: 1589KTY81/120,112 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KTY83/120,113 is determined by the following critical parameters:

• Resistance value at 25°C: 1 kOhms (must match)
• Thermistor type: PTC (Positive Temperature Coefficient)
• Mounting configuration: Through-hole compatible
• Operating temperature range: Must encompass or match the original specification
• Manufacturer compliance: ROHS3 and REACH status alignment
• Package compatibility: Physical form factor suitable for axial through-hole applications

The KTY81/120,112 qualifies as a manufacturer-recommended substitute based on matching resistance value, PTC thermistor classification, through-hole mounting capability, and equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The KTY81/120,112 is the manufacturer-recommended substitute for the KTY83/120,113. Both components share identical resistance specifications, PTC thermistor characteristics, and regulatory compliance status (ROHS3 and REACH Unaffected).

The primary design consideration is the operating temperature range differential: the KTY83/120,113 operates to 175°C, while the KTY81/120,112 operates to 150°C. Applications requiring operation above 150°C must retain the original KTY83/120,113 specification or identify alternative solutions.

Package form factor differs between the two parts: the KTY83/120,113 uses DO-34 axial configuration, while the KTY81/120,112 uses TO-92-2 radial configuration. PCB layout and mechanical mounting requirements must accommodate this physical difference.

Both components carry obsolete product status, indicating limited future availability. Long-term design strategies should evaluate current-generation PTC thermistor alternatives from NXP or qualified manufacturers.

Frequently Asked Questions (FAQ)

Q: Can the KTY81/120,112 directly replace the KTY83/120,113 in all applications?

A: Direct replacement is possible only when the application operating temperature does not exceed 150°C. The KTY83/120,113 supports operation to 175°C; the KTY81/120,112 does not. Additionally, the package form factor differs (axial versus radial), requiring PCB layout verification.

Q: What is the significance of the resistance tolerance field showing a dash?

A: The resistance tolerance specification was not provided in the component documentation for either part. Consult the manufacturer datasheet for precise tolerance values before final design implementation.

Q: Are both parts suitable for new designs?

A: Both components carry obsolete product status. While they remain available in current inventory, they are not recommended for new designs. Evaluate current-generation temperature sensor alternatives for long-term product viability.

Q: What compliance certifications apply to both parts?

A: Both the KTY83/120,113 and KTY81/120,112 are ROHS3 compliant and REACH unaffected. Both carry MSL rating 1 (unlimited moisture sensitivity level). ECCN classification for both is EAR99.

Q: How do the package configurations affect circuit board design?

A: The KTY83/120,113 uses DO-34 axial packaging (two leads extending from opposite ends), while the KTY81/120,112 uses TO-92-2 radial packaging (leads extending from the same end). These configurations require different PCB footprints and mounting hole spacing.