IR2156SPBF Equivalent & Substitute Parts

Part Overview

The IR2156SPBF is a ballast controller IC manufactured by Infineon Technologies, designed for fluorescent lamp ballast applications operating in the 36kHz to 44kHz frequency range. This surface-mount device in 14-SOIC packaging provides the control logic necessary for electronic ballast circuits with a supply voltage range of 10.5V to 16.5V.

The IR2156SPBF is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing production, maintenance, and design continuity. Active alternatives with identical electrical and mechanical specifications are available to ensure uninterrupted component sourcing.

Substiute Parts

IR2156SPBF

Infineon TechnologiesIn Stock: 820IR2156SPBF Datasheet

Current PartRFQ

IR2156STRPBF

Infineon TechnologiesIn Stock: 17150IR2156STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IR2156SPBF is determined by strict equivalence across the following critical parameters:

• Device Type & Function: Ballast Controller with identical control architecture
• Operating Frequency: 36kHz ~ 44kHz range
• Electrical Specifications: Supply voltage 10.5V ~ 16.5V, supply current 10 mA
• Package & Pinout: 14-SOIC surface-mount package with identical mechanical dimensions (0.154", 3.90mm width)
• Temperature Range: -25°C ~ 125°C operating window
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected status

The IR2156STRPBF is classified as a manufacturer-recommended substitute, sharing the identical base product number (IR2156) and meeting all electrical and mechanical requirements for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

The IR2156STRPBF is the designated manufacturer-recommended substitute for the discontinued IR2156SPBF. Both parts share identical electrical specifications, package geometry, and regulatory compliance certifications. The IR2156STRPBF maintains active product status with significantly higher inventory availability (17,100 pcs vs. 781 pcs), ensuring reliable sourcing for production and replacement applications.

Selection of the IR2156STRPBF is appropriate for all applications previously designed with the IR2156SPBF, as no electrical or mechanical modifications to the circuit board or firmware are required. Both devices are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the IR2156STRPBF be used as a direct replacement for the IR2156SPBF?

A: Yes. The IR2156STRPBF is the manufacturer-recommended substitute with identical electrical specifications, operating frequency range, supply voltage requirements, temperature range, and 14-SOIC package dimensions. No circuit modifications are necessary.

Q: What is the difference between the IR2156SPBF and IR2156STRPBF part numbers?

A: Both parts share the base product number IR2156 and are manufactured by Infineon Technologies. The suffix designations indicate different packaging and distribution formats. The IR2156SPBF is discontinued, while the IR2156STRPBF is actively produced and available in Cut Tape and Digi-Reel packaging options.

Q: Are there any compatibility concerns with PCB layout or thermal management?

A: No. Both parts use the identical 14-SOIC surface-mount package with matching pin assignments, mechanical dimensions (0.154" width, 3.90mm), and thermal characteristics. Existing PCB designs require no modification.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both the IR2156SPBF and IR2156STRPBF have an MSL rating of 3 with a 168-hour floor life. Standard moisture control procedures during storage and handling apply to both devices.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the IR2156SPBF and IR2156STRPBF are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.