IR3310STRL Equivalent & Substitute Parts

Part Overview

The IR3310STRL is a Power Switch/Driver IC featuring 1:1 N-Channel configuration with 23A maximum output current in D2PAK (SMD-220 5-Lead) surface mount packaging. This component functions as a high-side N-channel power switch with on/off interface control, designed for load voltage applications ranging from 6V to 28V. The IR3310STRL is classified as obsolete, making identification of functionally equivalent substitute components essential for ongoing design support and procurement continuity.

Substiute Parts

IR3310STRL

Infineon TechnologiesIn Stock: 1246IR3310STRL Datasheet

Current PartRFQ

BTS441RGATMA1

Infineon TechnologiesIn Stock: 7487BTS441RGATMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR3310STRL is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Output configuration: High Side N-Channel
• Ratio: 1:1
• Interface: On/Off control
• Input type: Non-Inverting
• Mounting type: Surface Mount
• Package compatibility: TO-263-5 / D2PAK form factor
• Operating temperature range: -40°C ~ 150°C (TJ)

Allowable Parameter Variations:

• Maximum output current: Substitute must meet or exceed 23A requirement
• Load voltage range: Substitute must support minimum 6V ~ 28V envelope
• Rds On: Lower values are acceptable (improved performance)
• Fault protection features: Additional protection mechanisms are acceptable

The BTS441RGATMA1 qualifies as a substitute based on matching all critical criteria while providing enhanced electrical specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

BTS441RGATMA1 Substitution Assessment:

The BTS441RGATMA1 is a direct functional substitute for the IR3310STRL based on matching core electrical architecture and mechanical compatibility. Both components share identical output configuration (high-side N-channel 1:1), interface type (on/off non-inverting), operating temperature range (-40°C ~ 150°C TJ), and TO-263-5 D2PAK packaging.

Advantages of BTS441RGATMA1:

• Active product status ensures long-term availability and supply chain continuity
• ROHS3 compliance versus RoHS non-compliant status of IR3310STRL
• Extended load voltage range (4.75V ~ 43V) provides broader application flexibility
• Enhanced fault protection including open load detection and over-voltage protection
• Belongs to Infineon PROFET® series, indicating mature production and quality assurance

Design Considerations: The BTS441RGATMA1 exhibits reduced maximum output current (17A versus 23A) and higher on-resistance (15mOhm versus 5.5mOhm). Applications requiring the full 23A capacity or operating at thermal limits with minimal on-resistance dissipation require thermal and current load analysis to confirm compatibility. The fixed current limiting (versus adjustable on IR3310STRL) may impact designs requiring tunable protection thresholds.

Frequently Asked Questions (FAQ)

Q: Can BTS441RGATMA1 directly replace IR3310STRL in existing designs?

A: Mechanical and electrical interface compatibility is confirmed through matching TO-263-5 D2PAK packaging and identical 1:1 high-side N-channel output configuration with on/off control. However, the reduced maximum output current (17A versus 23A) and increased on-resistance (15mOhm versus 5.5mOhm) require verification that application load current and thermal dissipation remain within BTS441RGATMA1 specifications.

Q: What are the key differences in fault protection between these components?

A: IR3310STRL provides adjustable current limiting and over-temperature protection. BTS441RGATMA1 adds fixed current limiting, open load detection, and over-voltage protection. Applications relying on adjustable current limiting thresholds must implement external adjustment circuitry or accept fixed protection parameters of the substitute.

Q: Are the packages physically identical?

A: Both components use TO-263-5 D2PAK (4 Leads + Tab) surface mount packaging. PCB footprints and reflow profiles are compatible. Pin assignments and functional mapping are identical, enabling direct PCB layout reuse.

Q: What is the impact of the load voltage range difference?

A: IR3310STRL operates with 6V ~ 28V load voltage. BTS441RGATMA1 extends this to 4.75V ~ 43V. Applications within the original 6V ~ 28V envelope experience no impact. Designs operating below 6V or above 28V require BTS441RGATMA1 for specification compliance.

Q: How does RoHS compliance affect component selection?

A: IR3310STRL is RoHS non-compliant. BTS441RGATMA1 is ROHS3 compliant. Designs subject to RoHS regulatory requirements or customer specifications mandating RoHS compliance must use BTS441RGATMA1 or equivalent compliant alternatives.

Q: What thermal considerations apply to the current rating difference?

A: The 6A reduction in maximum output current (23A to 17A) directly impacts thermal design margins. Applications operating near maximum current require thermal analysis to confirm BTS441RGATMA1 junction temperature remains within -40°C ~ 150°C operating range under worst-case load and ambient conditions.