Ultra-Compact Positional Telemetry: 1/2″ Bodied Linear Position Sensor (50mm)
In high-end performance electronics, some of the most critical data comes from the smallest movements. The Linear Position Sensor with a 1/2″ Body and 50mm Travel is a precision instrument designed for short-stroke applications. Featuring a 167mm distance between mounting holes when closed, this ultra-compact sensor is the definitive solution for measuring throttle-by-wire blade position, wastegate actuator travel, or clutch bite-point. It provides a linear 0-5V output to your standalone ECU integration, delivering microsecond-fast positional feedback that is vital for closed-loop boost control and launch strategies.
Engineering Principles: 50mm High-Fidelity Logic
This sensor utilizes a high-resolution internal potentiometer to translate its 50mm travel into a variable voltage signal. This Analogue-to-Digital interface (concerning actuator position) allows the ECU to maintain absolute control over critical engine peripherals. Despite its miniature 1/2″ body, the sensor is IP65 Ingress Protected, ensuring it survives the harsh environment of a turbocharged engine bay or the extreme heat near a 2JZ or RB26 turbocharger. This reliability is foundational for harness integration in professional motorsport, where signal accuracy at 50mm is just as critical as 250mm.
Operational Benefits: Boost and Launch Consistency
Integrating 1/2″ 50mm linear sensors with a Haltech Elite or Nexus series ECU enables high-tier closed-loop boost control mapping. For example, by mounting this sensor to an external wastegate, the ECU can identify the exact lift of the valve, allowing for much finer control of manifold pressure. In LS-swap or K-swap drag cars, this sensor is often used to measure clutch pedal travel, enabling precise “Pro-Tree” launch strategies. The recommended use of nylon mounting bolts provides electrical isolation, ensuring the sensor signal remains free from chassis ground noise and EMI.
Installation and Modular Interface
This 1/2″ bodied sensor is a universal component that suits all ECUs with a spare AVI. Its compact 167mm closed mounting datum makes it ideal for installation in tight engine bay areas or on throttle bodies where space is critical. The kit includes an opposing connector set for a professional harness integration that meets motorsport standards. During installation, ensure the mounting points are rigid and that the sensor rod travel is perfectly aligned with the measured component to prevent side-loading and signal hysteresis.
Technical Specifications Table
| Parameter | Specification |
|---|---|
| Mechanical Stroke | 50 mm |
| Closed Length (C-C) | 167 mm |
| Profile | 1/2 inch Slimline Body |
| Output Logic | 0-5V Analogue Voltage |
| Durability | IP65 Waterproof / Dustproof |
| Connector Included | Yes (Opposing 3-Pin Set) |
Summary & Includes
The 1/2″ 50mm Linear Position Sensor is the master’s choice for fine-resolution feedback in space-constrained applications. Includes: 1 x 50mm Sensor and 1 x Opposing Connector Set. Note: Mandatory use of nylon mounting bolts is recommended to ensure the highest signal integrity.







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