PFS7329H PFC Controller IC Equivalent & Substitute Parts

Part Overview

The PFS7329H is a Power Factor Correction (PFC) controller IC manufactured by Power Integrations, operating in Continuous Conduction Mode (CCM). This device is part of the HiperPFS™ series and is designed for power management applications requiring PFC functionality in a 16-pin eSIP package.

The PFS7329H has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this controller.

Substiute Parts

PFS7329H

Power IntegrationsIn Stock: 2646PFS7329H Datasheet

Current PartRFQ

PFS7529H

Power IntegrationsIn Stock: 2030PFS7529H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PFS7329H 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: Minimum 10.2V compatibility required

Substitute Identification: The PFS7529H qualifies as a substitute part. Both devices share identical package specifications, mounting methodology, and operational mode. The PFS7529H maintains the same physical footprint and pin configuration, enabling direct board-level replacement. The PFS7529H features an extended supply voltage range (10.2V ~ 15V) and higher maximum operating temperature (150°C), providing broader application compatibility while maintaining backward compatibility with PFS7329H designs.

Parameter Comparison

Engineering Selection Recommendations

PFS7329H (Original Part): Product status is obsolete. This part remains available in current inventory (2540 pcs) but is no longer in active production. Selection of this part is appropriate only for legacy system maintenance or existing design support where supply is confirmed.

PFS7529H (Substitute Part): Product status is active with confirmed inventory availability (2000 pcs). This part is recommended for new designs and ongoing production requirements. The PFS7529H provides enhanced operational parameters including extended supply voltage range and higher maximum operating temperature, while maintaining identical package, pinout, and mounting specifications. Both parts carry equivalent regulatory compliance: RoHS Compliant, REACH Unaffected, and EAR99 classification.

The PFS7529H represents the current-generation equivalent within the HiperPFS™ series for CCM PFC controller applications requiring 16-pin eSIP packaging.

Frequently Asked Questions (FAQ)

Q: Can PFS7529H directly replace PFS7329H on existing PCBs?

A: Yes. Both parts utilize identical package specifications (16-SSIP, 13 Leads, Exposed Pad, Formed Leads), pinout configuration, and through-hole mounting methodology. Physical board-level replacement is direct without PCB modification.

Q: What are the key differences between PFS7329H and PFS7529H?

A: The primary differences are product status and operational parameter ranges. PFS7329H is obsolete; PFS7529H is active. PFS7529H supports extended supply voltage (10.2V ~ 15V versus 10.2V ~ 13.2V) and higher maximum operating temperature (150°C versus 125°C). Both operate in CCM mode within the HiperPFS™ series.

Q: Are there regulatory or compliance differences between these parts?

A: No. Both parts carry identical regulatory status: RoHS Compliant, REACH Unaffected, EAR99 classification, and HTSUS code 8542.39.0001. Moisture sensitivity level is equivalent at MSL 1 (Unlimited).

Q: Which part should be selected for new designs?

A: PFS7529H is the appropriate selection for new designs. It maintains active product status, confirmed supply availability, and provides enhanced operational parameter ranges compared to the obsolete PFS7329H.

Q: Is the switching frequency specification relevant to substitution?

A: The PFS7529H specifies switching frequency range (22kHz ~ 123kHz) while PFS7329H does not provide this specification. Both parts operate in Continuous Conduction Mode. Switching frequency capability does not affect package compatibility or direct substitution feasibility.