A1205EUA-T Equivalent & Substitute Parts

Part Overview

The A1205EUA-T is a digital switch latch Hall Effect magnetic sensor manufactured by Allegro MicroSystems in a 3-SIP through-hole package. This component functions as an open drain output magnetic switch with latch capability, designed for applications requiring detection of magnetic field polarity changes. The A1205EUA-T is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

A1205EUA-T

Allegro MicroSystemsIn Stock: 847A1205EUA-T Datasheet

Current PartRFQ

A1205LUA-T

Allegro MicroSystemsIn Stock: 9383A1205LUA-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A1205EUA-T is determined by strict equivalence across the following critical parameters:

• Functional equivalence: Latch-type Hall Effect magnetic switch with open drain output
• Electrical compatibility: Identical supply voltage range (3.8V ~ 24V), current specifications (7.5mA supply, 25mA output maximum)
• Magnetic sensing characteristics: Matching polarization detection (North Pole, South Pole) and sensing threshold (5mT trip, -5mT release)
• Mechanical compatibility: Through-hole mounting in 3-SSIP package configuration
• Environmental compliance: ROHS3 compliance and MSL 1 rating

The A1205LUA-T meets all substitution criteria as an active product from the same manufacturer with identical electrical and mechanical specifications. The extended operating temperature range of the A1205LUA-T (-40°C ~ 150°C versus -40°C ~ 85°C) provides additional thermal capability without compromising compatibility in standard operating conditions.

Parameter Comparison

Engineering Selection Recommendations

The A1205LUA-T is the direct active equivalent for the obsolete A1205EUA-T. Both components maintain identical electrical performance, magnetic sensing characteristics, and mechanical form factor. The A1205LUA-T carries active product status with higher inventory availability (9277 units versus 755 units), ensuring supply chain continuity. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The extended temperature rating of the A1205LUA-T provides additional operational margin without introducing compatibility concerns for applications within the original -40°C ~ 85°C specification window.

Frequently Asked Questions (FAQ)

Q: Can the A1205LUA-T directly replace the A1205EUA-T in existing designs?

A: Yes. The A1205LUA-T is electrically and mechanically equivalent to the A1205EUA-T across all specified parameters including supply voltage, output current, magnetic sensing thresholds, and package configuration.

Q: What is the difference between the A1205EUA-T and A1205LUA-T?

A: The primary difference is product status and operating temperature range. The A1205EUA-T is obsolete with a -40°C ~ 85°C operating window, while the A1205LUA-T is active with an extended -40°C ~ 150°C operating window. All other electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both components use the 3-SSIP through-hole package with identical pin configuration and mechanical dimensions.

Q: Does the extended temperature range of the A1205LUA-T affect compatibility?

A: No. The extended temperature capability of the A1205LUA-T is a superset of the original specification and does not introduce any compatibility issues for applications operating within the original -40°C ~ 85°C range.

Q: What compliance certifications apply to both parts?

A: Both the A1205EUA-T and A1205LUA-T are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating.