Product Description:

YJJ SS441R Single-Ended Digital Hall Switch Non-contact Magnetic Detection General Chip

Features:

Model: SS441R

Type: Single-pole digital Hall switch (high sensitivity), part of the SS440R series, only responding to the south pole (S pole) of the magnetic field, TO-92 surface-mount package, industrial-grade wide temperature range, built-in protection, non-contact magnetic detection universal chip.

I. Basic Overview

Product classification: Single-polarity digital Hall effect switch (Unipolar Hall Switch)

Response magnetic pole: Only the south pole (S pole) triggers, no action on the north pole (N pole)

Sensitivity: Highest sensitivity in the same series (the highest among the three models in the SS440R series)

Package: Flat TO-92, 3-pin surface-mount, soldering, easy wiring

Output: NPN current-sink (pull-down) output, open-drain output, can directly drive MCU IO, transistors, relays

Built-in protection: Reverse power supply protection, no chip burnout due to reversed wiring

II. Core Magnetic Parameters (25℃ reference)

1Gs = 0.1mT

Typical operating point (Bop magnetic field conduction threshold): 75 G (7.5 mT)

Maximum conduction magnetic field: 135 G (13.5 mT)

Minimum release magnetic field (Brp deactivation threshold): 10 G (1.0 mT)

Magnetic hysteresis difference (Bop-Brp): Typical 40 G, anti-jitter, anti-mis-trigger

Detection characteristics: S pole close to conduction, magnetic field withdrawal disconnects, no latch-up

III. Complete Electrical Parameters

1. Power supply parameters

Working voltage range: 3.0 V ~ 24 V DC (compatible with 3.3V/5V/12V/24V systems)

Typical supply current: 4 mA (5V supply), maximum 8 mA

Maximum output current sink: 20 mA (open-drain output upper limit)

Leakage current: ≤10μA

2. Switching response characteristics

Output rise/fall time: ≤1.5 μs, high-speed switching

Operating temperature range: -40℃ ～ +150℃ (extremely wide industrial high-temperature grade)

Storage temperature: -55℃～165℃

Pin definition (TO-92 facing forward, pins facing down from left to right)

1 pin: VCC (power supply positive pole)

2 pin: GND (power supply ground)

3 pin: OUT (NPN open-drain output)

Specifications: