IR3312S Equivalent & Substitute Parts

Part Overview

The IR3312S is a Power Management IC (PMIC) functioning as a power switch/driver with 1:1 N-Channel configuration, rated for 14A output current in a D2PAK surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates across a 6V to 28V load voltage range with 15mOhm typical on-resistance and includes current limiting (adjustable) and over-temperature fault protection.

Substiute Parts

IR3312S

Infineon TechnologiesIn Stock: 2281IR3312S Datasheet

Current PartRFQ

BTS441TGATMA1

Infineon TechnologiesIn Stock: 5835BTS441TGATMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR3312S is determined by strict alignment across the following critical parameters:

Functional Architecture: Switch type (General Purpose), output configuration (High Side), output type (N-Channel), number of outputs (1), and input/output ratio (1:1) must remain identical.

Electrical Performance: The substitute must support the same interface type (On/Off, Non-Inverting), operate within compatible load voltage ranges, and maintain equivalent or superior current handling capacity (minimum 14A output current).

Thermal & Protection: Operating temperature range (-40°C to 150°C junction temperature) and fault protection mechanisms (current limiting and over-temperature protection) establish baseline reliability requirements.

Physical & Manufacturing: Surface mount technology with TO-263-5 / D2PAK package compatibility ensures mechanical and thermal interface equivalence.

The BTS441TGATMA1 qualifies as a direct substitute based on these criteria, offering enhanced electrical specifications and improved compliance status while maintaining functional and physical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The BTS441TGATMA1 is the qualified substitute for the obsolete IR3312S based on the following engineering criteria:

Product Status & Availability: The IR3312S is classified as obsolete, creating supply chain risk. The BTS441TGATMA1 maintains active product status with documented inventory availability (5730 pcs), ensuring long-term sourcing viability.

Compliance & Regulatory: The BTS441TGATMA1 achieves ROHS3 compliance, whereas the IR3312S is RoHS non-compliant. This distinction is critical for applications subject to RoHS directives and environmental regulations. Both parts maintain REACH Unaffected and EAR99 ECCN classifications.

Electrical Superiority: The BTS441TGATMA1 extends load voltage range to 4.75V ~ 43V (compared to 6V ~ 28V), increases maximum output current to 17A (versus 14A), and adds over-voltage fault protection. These enhancements provide expanded operational margins without compromising the 15mOhm on-resistance specification.

Physical & Thermal Compatibility: Both components utilize identical TO-263-5 / D2PAK packaging and share the same -40°C to 150°C operating temperature range, ensuring direct mechanical and thermal interface compatibility.

Series Designation: The BTS441TGATMA1 belongs to the PROFET® series, representing Infineon's current-generation power switch architecture.

Frequently Asked Questions (FAQ)

Q: Can the BTS441TGATMA1 directly replace the IR3312S without PCB modifications?

A: Yes. Both components share identical TO-263-5 / D2PAK packaging with the same pinout configuration and thermal interface. No PCB layout changes are required for mechanical substitution.

Q: What are the key electrical differences between these parts?

A: The BTS441TGATMA1 provides extended load voltage range (4.75V ~ 43V versus 6V ~ 28V), higher maximum output current (17A versus 14A), and additional over-voltage protection. On-resistance remains equivalent at 15mOhm typical. These represent performance enhancements rather than functional changes.

Q: Is the BTS441TGATMA1 suitable for applications originally designed for the IR3312S?

A: Yes, provided the application operates within the IR3312S specifications. The BTS441TGATMA1's extended electrical ratings ensure compatibility with all IR3312S-qualified designs. Applications requiring the full 4.75V minimum supply voltage or 43V maximum load voltage benefit from the expanded operating range.

Q: What compliance advantages does the BTS441TGATMA1 offer?

A: The BTS441TGATMA1 achieves ROHS3 compliance, addressing regulatory requirements in markets with RoHS directives. The IR3312S, being RoHS non-compliant, may face restrictions in certain jurisdictions and procurement environments.

Q: Are there differences in fault protection mechanisms?

A: The IR3312S provides adjustable current limiting and over-temperature protection. The BTS441TGATMA1 implements fixed current limiting, over-temperature protection, and additional over-voltage protection. The fixed current limiting in the substitute may require circuit design review if the original design relied on adjustable current limiting for specific application requirements.

Q: What is the moisture sensitivity classification for both parts?

A: Both the IR3312S and BTS441TGATMA1 are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.