CTS Electrocomponents 450D104F8 Equivalent & Substitute Parts

Part Overview

The CTS Electrocomponents 450D104F8 is a 100k Ohm, 1/3W carbon linear panel mount potentiometer from the Stock Pot™ 450 series. This component features a single gang configuration with a 300° rotation, flatted actuator, and solder lug termination for panel mounting applications. The part is classified as obsolete, necessitating identification of equivalent substitute components for ongoing procurement and design requirements.

Substiute Parts

450D104F8

CTS ElectrocomponentsIn Stock: 764450D104F8 Datasheet

Current PartRFQ

P11S1V0FLSY00104KA

Vishay SferniceIn Stock: 874P11S1V0FLSY00104KA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 450D104F8 is based on the following critical parameters that must align across candidate parts:

Core Electrical Parameters:

• Resistance value: 100k Ohm (exact match required)
• Taper characteristic: Linear (functional equivalence)
• Number of gangs: 1 (single gang configuration)
• Number of turns: 1.0 (single turn operation)

Mechanical Parameters:

• Rotation angle: 300° (operational range)
• Termination style: Solder Lug (connection method)
• Mounting type: Panel Mount (installation method)

Functional Parameters:

• Built-in switch: None (no switching function)
• Adjustment type: User Defined (manual adjustment)

The Vishay Sfernice P11S1V0FLSY00104KA qualifies as a substitute based on matching resistance, taper, gang configuration, turn count, rotation angle, termination style, and mounting type. Differences in power rating, resistive material, tolerance, and physical dimensions are secondary considerations that do not prevent functional substitution in applications where the higher power rating and improved tolerance are acceptable.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Vishay Sfernice P11S1V0FLSY00104KA

The P11S1V0FLSY00104KA is the designated substitute for the obsolete 450D104F8. This selection is based on the following engineering criteria:

Product Status Alignment: The substitute part maintains active product status, ensuring long-term availability and continued manufacturer support, addressing the obsolescence of the original component.

Electrical Equivalence: Both parts share identical resistance values (100k Ohm), linear taper, single gang configuration, and single-turn operation. The substitute's 1W power rating exceeds the original 1/3W specification, providing enhanced thermal margin in applications. The improved tolerance (±10% versus ±20%) offers superior accuracy.

Mechanical Compatibility: Both components feature identical 300° rotation angles, solder lug termination, and panel mount configuration. However, the bushing thread differs (3/8-32 versus M10 x 0.75), requiring mechanical panel redesign or adapter consideration. The actuator type differs (flatted versus slotted), affecting manual adjustment interface.

Compliance Status: The substitute achieves ROHS3 compliance, addressing regulatory requirements that the non-compliant original part cannot satisfy in modern procurement environments.

Material Composition: The substitute employs cermet resistive material in place of carbon, providing improved stability and temperature coefficient performance (±150ppm/°C specification available).

Frequently Asked Questions (FAQ)

Q: Can the P11S1V0FLSY00104KA directly replace the 450D104F8 without circuit modifications?

A: Electrical substitution is direct for circuits designed around the 450D104F8 specifications. The higher power rating (1W versus 1/3W) and improved tolerance (±10% versus ±20%) are backward-compatible enhancements. Mechanical panel integration requires evaluation due to bushing thread differences (3/8-32 versus M10 x 0.75).

Q: What is the significance of the resistive material change from carbon to cermet?

A: Cermet construction provides superior frequency response, lower noise characteristics, and improved temperature stability compared to carbon film. For DC and low-frequency applications, this change is functionally transparent. High-frequency applications benefit from cermet's superior performance.

Q: Does the actuator type difference (flatted versus slotted) affect functionality?

A: Actuator type affects the manual adjustment interface only. Flatted actuators accept flat-blade tools, while slotted actuators accept standard screwdrivers. The electrical and mechanical rotation characteristics remain identical. Panel design and user interface requirements determine actuator preference.

Q: Why do the bushing threads differ between the original and substitute parts?

A: The 450D104F8 uses imperial thread specification (3/8-32), while the P11S1V0FLSY00104KA uses metric specification (M10 x 0.75). Both provide equivalent mechanical panel mounting function. Panel redesign or mechanical adapter solutions are required for direct substitution in existing assemblies.

Q: Is the substitute part suitable for new designs?

A: The P11S1V0FLSY00104KA is the recommended selection for new designs requiring 100k Ohm linear potentiometers. Active product status, ROHS3 compliance, and superior electrical specifications support long-term design viability.

Q: What inventory considerations apply to this substitution?

A: The 450D104F8 maintains 723 pieces in stock as obsolete inventory. The P11S1V0FLSY00104KA maintains 799 pieces in active stock. Procurement strategy should transition to the active substitute part for future requirements.