PFS7326H PFC Controller IC Equivalent & Substitute Parts

Part Overview

The PFS7326H is a Power Factor Correction (PFC) controller IC manufactured by Power Integrations, operating in Continuous Conduction Mode (CCM). This device is classified as a Power Management Integrated Circuit (PMIC) and is designed for applications requiring active power factor correction with CCM topology.

The PFS7326H carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and production requirements.

Substiute Parts

PFS7326H

Power IntegrationsIn Stock: 1405PFS7326H Datasheet

Current PartRFQ

PFS7526H

Power IntegrationsIn Stock: 757PFS7526H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PFS7326H is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Operational Mode: Continuous Conduction (CCM)
• Package Type: 16-SSIP, 13 Leads, Exposed Pad, Formed Leads (eSIP-16D)
• Mounting Type: Through Hole
• Manufacturer Series: HiperPFS™
• Supply Voltage Range: Overlap with 10.2V ~ 13.2V

Allowable Parameter Variations:

• Supply voltage upper limit may extend beyond 13.2V
• Operating temperature range may exceed -40°C ~ 125°C
• Switching frequency specifications may be defined (PFS7326H has no specified switching frequency)
• Product status may transition from Obsolete to Active

The PFS7526H qualifies as a direct substitute based on these criteria. Both devices share identical package specifications, mounting type, operational mode, and manufacturer series. The PFS7526H maintains backward compatibility while offering extended supply voltage range and operating temperature specifications.

Parameter Comparison

Engineering Selection Recommendations

For PFS7326H Replacement:

The PFS7526H is the qualified substitute for the obsolete PFS7326H. Selection of the PFS7526H is supported by the following engineering factors:

1. Product Status Transition: The PFS7526H maintains Active product status, ensuring continued manufacturer support, availability, and compliance updates. The PFS7326H Obsolete status creates supply chain risk and limits access to technical documentation updates.

2. Regulatory Compliance: Both devices maintain identical RoHS Compliance, REACH Unaffected status, and EAR99 ECCN classification. No regulatory re-qualification is required for the substitution.

3. Package and Mounting Compatibility: Identical 16-SSIP package specifications and Through Hole mounting type ensure direct mechanical and electrical compatibility without PCB redesign.

4. Operational Mode Alignment: Both devices operate in Continuous Conduction (CCM) mode within the HiperPFS™ series, maintaining functional equivalence for PFC applications.

5. Extended Operating Specifications: The PFS7526H provides extended supply voltage range (10.2V ~ 15V versus 10.2V ~ 13.2V) and extended operating temperature range (-40°C ~ 150°C versus -40°C ~ 125°C), offering improved design margin and thermal performance capability.

6. Moisture Sensitivity: Identical MSL-1 (Unlimited) rating eliminates moisture handling and storage requirement changes.

Frequently Asked Questions (FAQ)

Q: Can the PFS7526H be used as a direct replacement for the PFS7326H in existing designs?

A: Yes. The PFS7526H is a direct substitute. Both devices share identical package specifications (16-SSIP eSIP-16D), mounting type (Through Hole), operational mode (CCM), and manufacturer series (HiperPFS™). No PCB modifications are required.

Q: What are the key differences between PFS7326H and PFS7526H?

A: The primary differences are: (1) Product Status—PFS7326H is Obsolete while PFS7526H is Active; (2) Supply Voltage Range—PFS7526H extends to 15V versus 13.2V maximum; (3) Operating Temperature Range—PFS7526H extends to 150°C versus 125°C maximum; (4) Switching Frequency—PFS7526H specifies 22kHz ~ 123kHz operation.

Q: Does substitution require design re-qualification or testing?

A: Substitution is based on identical electrical and mechanical parameters within the specified ranges. Design re-qualification requirements are determined by individual application specifications and quality standards, not by the substitution parameters themselves.

Q: Are there any compliance or certification changes when switching from PFS7326H to PFS7526H?

A: No. Both devices maintain identical RoHS Compliance, REACH Unaffected status, EAR99 ECCN classification, and HTSUS code (8542.39.0001). No regulatory re-certification is required.

Q: What is the inventory status for these parts?

A: PFS7326H has 1,302 pieces in stock (Obsolete status). PFS7526H has 708 pieces in stock (Active status). Active product status provides better long-term availability assurance.

Q: Are the packaging formats different between these parts?

A: The PFS7326H is supplied without specified packaging format. The PFS7526H is supplied in Tube packaging. Both use identical 16-SSIP eSIP-16D package specifications. Packaging format does not affect electrical or mechanical compatibility.

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

A: Both PFS7326H and PFS7526H carry MSL-1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.