βS053
IPRS Băneasa
- Also known as
- βS 053, βS255, βS057
- Manufacturer
- IPRS Băneasa
- Country
- Romania
- Year
- Unknown
- Category
- Components
- Type
- Integrated circuits
- Documentation score
- 1/5
- Last edited
- 25 OCT 2026
Specifications
- Type
- linear integrated circuit
- Function
- magnetic sensor (keyboards), open collector output
- Package
- SOT-32
- Operating temperature range
- 0…+70 °C
- Supply voltage (VS)
- 4…6 V
Sources: [1]
Variants (3)
| Note | Compare | |
|---|---|---|
| βS053 | ON state field min. 30 mT; OFF state max. 5 mT | |
| βS255 | ON state field min. 50 mT; OFF state printed „min. 25 mT” | |
| βS057 | ON state field min. 70 mT; OFF state max. 5 mT |
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Description
The βS053 is a three-pin magnetic sensor integrated circuit for computer keyboards, made by IPRS Băneasa [1].
The I.P.R.S. Băneasa Full Line Condensed Catalog (1990) lists the βS053, βS255 and βS057 as three-pin magnetic sensors specially designed for computer keyboards: the sensor has a TTL-compatible open collector output that switches to the low state in the presence of a magnetic field; the series uses the same chip with different electro-magnetic performances, and the sensors are not recommended for an extended temperature range [1].
The catalog gives an operating temperature of 0…+70 °C (storage −25…+125 °C), a supply voltage of 4…6 V, a supply current of at most 6.5 mA, an output current of at most 40 mA, an „ON state” magnetic field of at least 30 mT (βS053), 50 mT (βS255) and 70 mT (βS057), and an „OFF state” magnetic field of at most 5 mT (βS053, βS057), printed „min. 25 mT” for the βS255 [1]. Pins (SOT-32, front view): 1 supply voltage, 2 GND, 3 output [1].
Gallery
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References
- [1]I.P.R.S. Băneasa – „Full Line Condensed Catalog”, 1990, section 2 „Linear integrated circuits”, „Industrial”, „βS 053, βS 255, βS 057 – Magnetic sensors”, p. 2-59