EW752B Equivalent & Substitute Parts

Part Overview

The EW752B is a digital unipolar Hall effect magnetic switch manufactured by Asahi Kasei Microdevices (AKM) in a 3-SIP package configuration. This component functions as a push-pull output magnetic sensor designed for applications requiring detection of magnetic field presence with defined trip and release thresholds. The EW752B is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure long-term supply chain reliability for new production and field replacements.

Substiute Parts

EW752B

Asahi Kasei Microdevices/AKMIn Stock: 668EW752B Datasheet

Current PartRFQ

EW750B

Asahi Kasei Microdevices/AKMIn Stock: 1122EW750B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EW752B is based on equivalence across the following critical parameters:

• Magnetic Sensing Technology: Hall effect unipolar switch architecture
• Magnetic Threshold Specifications: 10mT trip point and 2.5mT release point
• Electrical Operating Range: 3V to 26.4V supply voltage compatibility
• Current Specifications: 6mA maximum supply current and 10mA maximum output current
• Temperature Operating Range: -40°C to 115°C
• Physical Package: 3-SIP through-hole mounting configuration
• Manufacturer Consistency: Asahi Kasei Microdevices (AKM) product line

The EW750B qualifies as a direct substitute based on matching all core electrical and mechanical parameters. The primary distinction between these components is the output stage configuration: the EW752B employs push-pull output topology, while the EW750B utilizes open-collector output topology. This difference requires circuit-level evaluation to confirm compatibility with existing load configurations.

Parameter Comparison

Engineering Selection Recommendations

The EW750B is the designated substitute for the obsolete EW752B based on the following engineering criteria:

Product Status Alignment: The EW750B maintains active product status with current manufacturing support from Asahi Kasei Microdevices, ensuring availability for procurement and long-term supply chain continuity. The EW752B obsolete status creates supply risk for new production and field service applications.

Electrical Parameter Equivalence: All critical electrical specifications align between the two components, including supply voltage range (3V to 26.4V), current ratings (6mA supply, 10mA output), and magnetic sensing thresholds (10mT trip, 2.5mT release). These parameters determine functional compatibility in the target application circuit.

Regulatory Compliance: The EW750B carries ROHS3 compliance certification and EAR99 export classification, meeting current regulatory requirements for component procurement in regulated industries and international markets.

Output Stage Consideration: The transition from push-pull output (EW752B) to open-collector output (EW750B) requires circuit-level analysis. Open-collector output requires external pull-up resistor implementation and is compatible with logic-level inputs. Existing designs using push-pull output must confirm that the load circuit can accommodate open-collector topology without functional degradation.

Package and Mounting Compatibility: Both components utilize identical 3-SIP through-hole packaging, enabling direct mechanical substitution on existing printed circuit boards without layout modification.

Frequently Asked Questions (FAQ)

Q: Can the EW750B directly replace the EW752B in existing circuit designs?

A: Mechanical and electrical parameter compatibility is confirmed. However, the output stage topology differs: EW752B provides push-pull output while EW750B provides open-collector output. Circuit designs must accommodate open-collector output requirements, including external pull-up resistor implementation if not already present. Verify that the load circuit is compatible with open-collector logic levels before substitution.

Q: What is the significance of the output type difference between these components?

A: Push-pull output (EW752B) actively drives both high and low logic states. Open-collector output (EW750B) can only pull the output line low; the high state requires an external pull-up resistor to the supply voltage. This difference affects circuit design and may require modifications to existing load circuits.

Q: Are the magnetic sensing thresholds identical between EW752B and EW750B?

A: Yes. Both components operate with identical sensing specifications: 10mT trip point and 2.5mT release point. Magnetic field detection behavior is equivalent between the two parts.

Q: What is the operating temperature range for both components?

A: Both the EW752B and EW750B operate across the temperature range of -40°C to 115°C. Temperature performance is equivalent.

Q: Is the EW750B RoHS compliant?

A: Yes. The EW750B carries ROHS3 compliance certification. RoHS compliance status for the obsolete EW752B is not specified in available documentation.

Q: Can these components be used interchangeably in new product designs?

A: The EW750B is the recommended choice for new designs due to its active product status and current regulatory certifications. The EW752B is obsolete and should not be selected for new production. Existing designs using EW752B should transition to EW750B with appropriate circuit modifications to accommodate open-collector output topology.

Q: What is the package configuration for both parts?

A: Both components use 3-SIP (3-pin Single In-line Package) configuration with 3-SSIP case designation. Through-hole mounting is standard for both parts, enabling direct board-level substitution.

Q: Are there any moisture sensitivity considerations for the EW750B?

A: The EW750B carries Moisture Sensitivity Level (MSL) rating of 1, indicating unlimited shelf life without moisture control requirements during storage and handling.