PFS726EG Equivalent & Substitute Parts

Part Overview

The PFS726EG is a Power Factor Correction (PFC) controller IC manufactured by Power Integrations, operating in Continuous Conduction Mode (CCM) with a switching frequency range of 24kHz to 95kHz. This device is packaged in a 7-lead eSIP format with through-hole mounting and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from the HiperPFS™ series are available to maintain design continuity and ensure supply chain availability for applications requiring PFC control functionality.

Substiute Parts

PFS726EG

Power IntegrationsIn Stock: 791PFS726EG Datasheet

Current PartRFQ

PFS7626H

Power IntegrationsIn Stock: 1351PFS7626H Datasheet

SimilarRFQ

PFS7636H

Power IntegrationsIn Stock: 1316PFS7636H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PFS726EG are identified based on the following critical parameters that determine functional equivalence:

Substitution Criteria:

• Operating Mode: Continuous Conduction (CCM) operation required
• Switching Frequency Range: Overlap or extended range capability within 22kHz to 123kHz spectrum
• Supply Voltage Range: Compatibility with 10V to 15V input specifications
• Operating Temperature Range: Maintained at -40°C to 125°C
• Mounting Type: Through-hole configuration with formed leads
• Regulatory Compliance: RoHS Compliant, REACH Unaffected status

The substitute parts PFS7626H and PFS7636H belong to the HiperPFS™-4 series and maintain CCM operation with extended switching frequency capabilities. Both substitutes support the required supply voltage range and thermal operating window. The primary difference from the main part is the package format upgrade from 7-SSIP to 16-SSIP, which provides additional leads and functionality while maintaining through-hole mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

PFS7626H and PFS7636H are suitable substitutes for the obsolete PFS726EG based on the following factors:

1. Product Status Alignment: Both substitute parts maintain active product status, ensuring long-term availability and supply chain continuity compared to the obsolete PFS726EG.

2. Regulatory Compliance: All three parts maintain identical RoHS Compliant and REACH Unaffected certifications, satisfying regulatory requirements for equivalent component selection.

3. Functional Compatibility: The substitute parts operate in CCM mode with overlapping switching frequency ranges (22kHz minimum vs. 24kHz minimum for the main part) and extended upper frequency capability (123kHz vs. 95kHz). The supply voltage range of the substitutes (10.2V ~ 15V) encompasses the main part's requirement (10V ~ 12V).

4. Thermal Performance: Operating temperature range remains constant at -40°C to 125°C across all three parts, maintaining thermal design compatibility.

5. Mechanical Mounting: Through-hole mounting with formed leads is preserved across all parts, supporting existing PCB designs with potential package footprint modifications required due to the transition from 7-SSIP to 16-SSIP format.

Frequently Asked Questions (FAQ)

Q: Can PFS7626H and PFS7636H directly replace PFS726EG without PCB modifications?

A: Both substitute parts maintain through-hole mounting with formed leads and identical operating temperature ranges. However, the package format changes from 7-SSIP (eSIP-7G) to 16-SSIP (eSIP-16D), requiring PCB footprint verification and potential layout adjustments. Pin configuration differences must be evaluated against application schematics.

Q: What is the primary reason for substituting the PFS726EG?

A: The PFS726EG is classified as obsolete. The PFS7626H and PFS7636H are active products from the HiperPFS™-4 series, providing guaranteed long-term availability and supply chain stability.

Q: Are the switching frequency ranges compatible between the main part and substitutes?

A: Yes. The PFS726EG operates at 24kHz to 95kHz, while both substitutes operate at 22kHz to 123kHz. The substitute range encompasses the main part's frequency band with extended upper capability.

Q: Do the substitute parts support the same supply voltage as the PFS726EG?

A: The PFS726EG requires 10V to 12V supply voltage. The substitutes support 10.2V to 15V, which encompasses the main part's voltage range with extended upper tolerance.

Q: What are the differences between PFS7626H and PFS7636H?

A: Both parts share identical electrical specifications, operating modes, frequency ranges, voltage ratings, and temperature ranges. They are functionally equivalent substitutes for the PFS726EG.

Q: Are moisture sensitivity levels equivalent across all three parts?

A: Yes. All three parts maintain MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions for storage and handling.