ICE2AS01 Equivalent & Substitute Parts

Part Overview

The ICE2AS01 is an offline switch flyback converter IC manufactured by Infineon Technologies, designed for isolated power management applications with 100kHz switching frequency. This device operates as a primary-side controller for flyback topology converters with integrated current limiting, overload, overvoltage, and overtemperature protection. The ICE2AS01 is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and production continuity. The part is available in 8-DIP through-hole packaging with 16,914 units currently in stock.

Substiute Parts

ICE2AS01

Infineon TechnologiesIn Stock: 17011ICE2AS01 Datasheet

Current PartRFQ

ICE3AS03LJGXUMA1

Infineon TechnologiesIn Stock: 3635ICE3AS03LJGXUMA1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICE2AS01 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Topology: Flyback converter architecture
• Output Isolation: Isolated configuration
• Switching Frequency: 100kHz operation
• Fault Protection: Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage capabilities
• Supply Voltage Range: Compatibility with 8.5V ~ 21V input specification
• Startup Voltage: Operation at or below 13.5V startup threshold

Mechanical Compatibility:

• Package type and pin configuration must support the application's PCB layout requirements
• Mounting type (through-hole vs. surface-mount) determines board assembly compatibility

The ICE3AS03LJGXUMA1 qualifies as a direct substitute based on matching topology, isolation, switching frequency, fault protection features, and compatible supply voltage range. Variations in startup voltage, duty cycle, temperature range, and package type represent design trade-offs that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The ICE2AS01 is classified as obsolete, while the ICE3AS03LJGXUMA1 maintains active product status with Infineon Technologies. Active status ensures continued availability, technical support, and compliance with current regulatory standards.

Compliance & Certifications: The ICE3AS03LJGXUMA1 is ROHS3 compliant, meeting current environmental and hazardous substance restrictions. Both parts carry REACH Unaffected status and EAR99 export classification.

Supply Voltage Range: The ICE3AS03LJGXUMA1 operates across a wider supply voltage range (10.5V ~ 25V) compared to the ICE2AS01 (8.5V ~ 21V). Applications requiring operation below 10.5V or above 21V must verify compatibility with the substitute part's specifications.

Startup Voltage: The ICE3AS03LJGXUMA1 requires 18V startup voltage versus 13.5V for the ICE2AS01. Applications with limited startup voltage headroom must confirm the substitute part's startup requirements are met by the power supply design.

Temperature Range: The ICE2AS01 supports extended low-temperature operation (-40°C) and higher maximum junction temperature (150°C) compared to the ICE3AS03LJGXUMA1 (-25°C to 130°C). Applications requiring operation below -25°C or above 130°C must evaluate alternative solutions.

Package & Mounting: The ICE3AS03LJGXUMA1 uses 8-SOIC surface-mount packaging versus the ICE2AS01's 8-DIP through-hole package. PCB redesign is required for mounting type conversion. Pin configuration compatibility must be verified against schematic requirements.

Frequently Asked Questions (FAQ)

Q: Can the ICE3AS03LJGXUMA1 directly replace the ICE2AS01 without PCB modifications?

A: No. The ICE3AS03LJGXUMA1 uses 8-SOIC surface-mount packaging while the ICE2AS01 uses 8-DIP through-hole packaging. PCB layout redesign is required. Pin-to-pin functional compatibility must be verified against the specific application schematic.

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

A: The ICE3AS03LJGXUMA1 operates across a wider supply voltage range (10.5V ~ 25V vs. 8.5V ~ 21V) and requires higher startup voltage (18V vs. 13.5V). Duty cycle differs slightly (75% vs. 72%). Both maintain identical 100kHz switching frequency and equivalent fault protection features.

Q: Is the ICE3AS03LJGXUMA1 suitable for applications requiring -40°C operation?

A: No. The ICE3AS03LJGXUMA1 operates from -25°C minimum junction temperature. Applications requiring -40°C operation must identify alternative components supporting the extended temperature range.

Q: What compliance advantages does the ICE3AS03LJGXUMA1 offer?

A: The ICE3AS03LJGXUMA1 is ROHS3 compliant and maintains active product status with Infineon Technologies, ensuring ongoing regulatory compliance and technical support availability. The ICE2AS01 is obsolete.

Q: Are there packaging considerations for high-volume production?

A: Yes. The ICE3AS03LJGXUMA1 is supplied in Tape & Reel (TR) packaging suitable for automated surface-mount assembly. The ICE2AS01 through-hole package requires manual or selective wave soldering processes. Production method compatibility must be evaluated.

Q: Can both parts be used interchangeably in the same design?

A: No. Differences in startup voltage, supply voltage range, temperature range, and package type require design-specific evaluation. Each application must verify compatibility against its particular electrical and thermal requirements before substitution.