Product Overview
The Littelfuse 55250 Series is a rotary absolute position sensor designed for angular measurement from 0 to 105 degrees, with an option for full 360-degree movement. Utilizing non-contact magnetic Hall Effect technology, it offers superior durability and performance compared to traditional wiper-based resistive sensors, as it is immune to mechanical wear and contamination. Its robust design is suitable for harsh industrial and commercial vehicle environments, operating within a temperature range of -40C to 125C. The sensor includes automotive-grade EMI/EMC and reverse polarity protection, and mates with a Delphi type sealed connector. Key applications include pedal position sensing, absolute rotary encoding, shaft and lever positioning, and float level sensing.
Product Attributes
- Brand: Littelfuse
- Technology: Hall Effect
- Protection: Automotive grade EMI/EMC, Reverse Polarity Protection
- Connector Type: Delphi type sealed connector
Technical Specifications
| Specification | Value |
|---|---|
| Series | 55250 |
| Angular Sensing Range | 105 (Option for 360) |
| Measuring Principle | Non-contact magnetic Hall Effect |
| Output Type | Analog (Option for PWM or SPI) |
| Operating Voltage (Recommended) | 4.5 to 5.5 Vdc |
| Absolute Maximum Over Voltage | 1 Vdc 20 |
| Absolute Maximum Reverse Voltage | -10 Vdc |
| Supply Current (Max) | 16 mA |
| Output Current (Max) | -8 to +8 mA |
| Programmed Output Voltage Range | 0.5 to 4.5 Vdc |
| Programmed Sensing Range | 105 |
| Resolution | 0.11 |
| Accuracy | 4 |
| Response Time (Max) | 4 ms |
| Start-up Time (Max) | 15 ms |
| Operating Temperature | -40C to 125C |
| Mating Connector | Delphi 12162181 |
| Pin Out (Pin A) | Ground |
| Pin Out (Pin B) | V(in) |
| Pin Out (Pin C) | Signal |
| Packaging Option (Bulk) | Quantity: 500 |
Customization Options
Customized versions are available. Contact Littelfuse for details.
Part Numbering System
55250 - 00 - 00 - 0 (Series - Termination - Cable Length - Hall Option)
2411220346_Littelfuse-55250-00-00-0_C1527022.pdf
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