IRS2500SPBF Equivalent & Substitute Parts

Part Overview

The IRS2500SPBF is a Power Factor Correction (PFC) controller IC operating in Critical Conduction Mode (CRM), manufactured by Infineon Technologies in an 8-SOIC surface mount package. This device has reached obsolete product status, making substitute components necessary for new designs and production continuity. The IRS2500SPBF was designed for applications requiring efficient power factor correction with minimal component count and cost-effective implementation.

Substiute Parts

IRS2500SPBF

Infineon TechnologiesIn Stock: 2441IRS2500SPBF Datasheet

Current PartRFQ

NCP1608BDR2G

onsemiIn Stock: 222658NCP1608BDR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IRS2500SPBF is determined by the following critical parameters:

• Functional Mode: Both the main part and substitute must operate in Critical Conduction (CRM) mode for PFC applications
• Package Compatibility: Identical 8-SOIC package ensures direct PCB layout compatibility without redesign
• Electrical Specifications: Supply voltage range, startup current, and operating temperature must support the application requirements
• Product Status: Active substitute parts ensure long-term availability and supply chain reliability

The NCP1608BDR2G from onsemi meets all substitution criteria as an active product with matching functional mode, package type, and compatible electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

The NCP1608BDR2G is the qualified substitute for the IRS2500SPBF based on the following engineering criteria:

Product Status & Availability: The IRS2500SPBF is obsolete, while the NCP1608BDR2G maintains active product status with substantial inventory (222,600 pcs), ensuring reliable supply chain continuity for production and new designs.

Functional Equivalence: Both devices operate in Critical Conduction Mode for PFC applications with identical 8-SOIC packaging, enabling direct PCB-level replacement without layout modifications.

Electrical Performance: The NCP1608BDR2G demonstrates improved electrical characteristics including lower startup current (24 µA vs. 50 µA), extended supply voltage range (10.2V minimum vs. 11.5V), and broader operating temperature range (-40°C to 125°C vs. -25°C to 125°C).

Compliance & Standards: The NCP1608BDR2G is ROHS3 compliant with MSL 1 moisture sensitivity rating, meeting current environmental and reliability requirements. Both devices carry REACH Unaffected and EAR99 classifications.

Frequently Asked Questions (FAQ)

Q: Can the NCP1608BDR2G be used as a direct replacement for the IRS2500SPBF without PCB modifications?

A: Yes. Both devices use identical 8-SOIC packaging with the same 0.154" (3.90mm) width, enabling direct pin-compatible substitution without PCB redesign or layout changes.

Q: What are the key differences between these two PFC controller ICs?

A: The primary differences are product status (obsolete vs. active), startup current (50 µA vs. 24 µA), minimum supply voltage (11.5V vs. 10.2V), operating temperature range (-25°C to 125°C vs. -40°C to 125°C), and moisture sensitivity rating (MSL 2 vs. MSL 1). The NCP1608BDR2G offers improved specifications across all parameters.

Q: Is the NCP1608BDR2G suitable for applications originally designed for the IRS2500SPBF?

A: Yes. The NCP1608BDR2G operates in the same Critical Conduction Mode and supports the same supply voltage range as the original design. The improved electrical characteristics and extended operating temperature range make it suitable for existing applications.

Q: What is the significance of the lower startup current in the NCP1608BDR2G?

A: Lower startup current (24 µA vs. 50 µA) reduces power consumption during the initialization phase, improving overall system efficiency and reducing thermal stress on auxiliary power supplies.

Q: Does the NCP1608BDR2G meet current environmental compliance standards?

A: Yes. The NCP1608BDR2G is ROHS3 compliant and carries REACH Unaffected status, meeting current environmental regulations. The MSL 1 moisture sensitivity rating also provides superior reliability compared to the MSL 2 rating of the IRS2500SPBF.

Q: What packaging options are available for the NCP1608BDR2G?

A: The NCP1608BDR2G is supplied in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for both prototype and production volume requirements.