Single-turn potentiometer WDH50A

manualHall effectelectronic equipment

Overview
WDH50A — 1-turn contactless magnetic potentiometer providing continuous 360° position sensing for industrial control and measurement applications.

Key features

• Contactless magnetic rotary sensor (digital potentiometer)
• Economy version for cost-sensitive applications
• Side lug terminal for panel wiring
• One pair of precision ball bearings
• Servo and screw mounting options

Mechanical specifications

• Mechanical angle: 360º (endless)
• Protection degree: IP40
• Operating torque: <1 mN·m (standard)
• Maximum speed: 6000 rpm
• Life expectancy: 100,000,000 cycles
• Mass: Approx. 100 g
• Housing material: Anodized aluminium alloy
• Shaft material: Stainless steel

Environmental specifications

• Operating temperature range: -40℃ to +85℃
• Storage temperature range: -40℃ to +85℃
• ESD durability: Contact ±8 kV, Air ±15 kV (EN61000-4-2:2009)
• EMS durability: 10 V/m (80 MHz–1 GHz, 1 kHz 80% AM) (EN61000-4-3:2006+A1:2010)

Electrical specifications

• Standard model: WDH50A 0505 W360 (other input/output variants available)
• Input voltage (0505): 5V ±10%
• Output signal (0505): 0–100% Vcc
• Current consumption (no-load): <16 mA
• Output deviation at ends: <1%·VCC
• Load resistance: >100 kΩ
• Effective electrical angle: 360º
• Independent linearity tolerance: ±0.3%
• Resolution: 4096 (12 bit)
• Update rate: 0.3 ms
• Insulation resistance: >1000 MΩ (500 V DC)
• Dielectric strength: 1 min at 500 V AC

Input voltage / output options

• 0505 — 5V ±10% / 0–100% Vcc
• 2410 — 15–30V / 0–10V
• 2405 — 9–30V / 0–5V
• 2442 — 15–30V / 4–20 mA

Special specifications available

• Other output interfaces: Incremental, SSI, SER, SPI, RS485, RS422, CAN, USB
• Special analog options: 1010 (10V in → 0–10V out), 0305 (3.3V in → 0–5V out), dual analog, PWM
• Special mechanical angle: Versions with stopper (e.g. ~345°, or 270°, 180°, 90° — customizable)
• Special torque: Low <0.5 mN·m or high <30 mN·m available
• Special shaft: Custom length, diameter or machining (slotted, flattened, drilled, etc.)

Technical summary

• Model: WDH50A
• Type: 1-turn contactless magnetic potentiometer
• Mechanical / Electrical angle: 360º
• Protection: IP40
• Resolution: 4096 (12 bit)
• Standard input: 5V ±10% (0505)
• Standard output: 0–100% Vcc (0505)
• Operating temperature: -40℃ to +85℃
• Housing: Anodized aluminium alloy
• Shaft: Stainless steel