SS49E Linear Hall Effect Sensor – Specifications & Buy
SS49E Linear Hall Effect Sensor
The SS49E is a ratiometric linear Hall effect sensor in a compact TO-92 package. It outputs an analog voltage proportional to the magnetic flux density applied perpendicular to the branded face. Engineers and makers use it for precise, contactless magnetic field sensing in measurement and positioning systems.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V DC |
| Output Type | Analog (ratiometric) |
| Sensitivity | 2.5 mV/G typical |
| Quiescent Output | 2.5 V at zero field (Vcc/2) |
| Magnetic Range | ±1000 Gauss |
| Package | TO-92 (3-pin) |
What You Can Build With This
- Contactless DC current sensor (sensing magnetic flux around a wire)
- Proximity switch triggered by a magnet
- Rotary or linear position encoder with a magnet array
- Magnetic field strength logger for experiments
Compatibility
The SS49E runs on 5V logic and outputs up to 5V, so it works directly with 5V Arduino boards (Uno, Mega). For 3.3V systems like ESP32 or Raspberry Pi Pico, use a voltage divider or logic-level converter on the output pin to avoid ADC damage. Common pairings include op‑amp buffers for weak fields and comparator circuits for threshold‐based switching.
Wiring Notes
Pin 1 is supply (Vcc), pin 2 ground, pin 3 analog output. Current consumption is around 8 mA. Connect the output directly to an analog input – no pull‑up needed. Keep sensor leads short to avoid noise; a 0.1 µF decoupling capacitor between Vcc and ground near the sensor is recommended.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino?
Yes, directly with 5V Arduino boards. Connect Vcc to 5V, GND to GND, and output to an analog pin like A0. Use analogRead() to get a value proportional to the magnetic field. For 3.3V Arduinos, a level shifter on the output is required.
What voltage does it output when no magnet is near?
The quiescent output is half the supply voltage – typically 2.5 V with a 5 V supply. A south pole field increases the voltage above 2.5 V, a north pole decreases it below 2.5 V.
Can it work with a 3.3V supply?
No, the SS49E is designed for a 4.5 V–5.5 V supply. Operating it from 3.3 V may result in unstable or incorrect output. Use a separate 5 V rail and level-shift the output for 3.3 V microcontrollers.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items