FSGM0565RBUDTU Equivalent & Substitute Parts

Part Overview

The FSGM0565RBUDTU is an offline flyback converter IC manufactured by onsemi, designed for isolated power management applications. This device integrates an internal switch and operates at 66kHz switching frequency with 80W power capability. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing production and design continuity. Substitute parts must maintain identical electrical performance and mechanical compatibility while preferably offering active product status and improved compliance certifications.

Substiute Parts

FSGM0565RBUDTU

onsemiIn Stock: 828FSGM0565RBUDTU Datasheet

Current PartRFQ

FSGM0565RBLDTU

Fairchild SemiconductorIn Stock: 1344FSGM0565RBLDTU Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FSGM0565RBUDTU is determined by strict equivalence across the following critical parameters:

• Topology: Flyback converter architecture
• Output Isolation: Isolated configuration
• Voltage - Breakdown: 650V rating
• Voltage - Supply Range: 7.5V ~ 26V input
• Voltage - Start Up: 12V threshold
• Frequency - Switching: 66kHz operation
• Power Rating: 80W capability
• Duty Cycle: 70% maximum
• Operating Temperature Range: -40°C ~ 125°C (TJ)
• Package: TO-220-6 Full Pack with Formed Leads
• Mounting: Through Hole configuration
• Internal Switch: Integrated switch requirement
• Fault Protection: Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit

The FSGM0565RBLDTU meets all these criteria and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The FSGM0565RBLDTU is a direct parametric equivalent to the obsolete FSGM0565RBUDTU. Both devices share identical electrical specifications, switching characteristics, and thermal operating ranges. The substitute part offers the advantage of active product status, ensuring continued availability and supply chain reliability.

The FSGM0565RBLDTU carries ROHS3 compliance, providing enhanced environmental regulatory alignment compared to the main part. The REACH Affected status indicates regulatory substance tracking; this does not preclude use but requires compliance verification within your supply chain framework.

The difference in Moisture Sensitivity Level (MSL 1 versus MSL 3) reflects different manufacturing processes. MSL 3 with 168-hour floor life is standard for modern semiconductor manufacturing and does not impact functional performance in typical applications. Storage and handling procedures must follow the specified moisture sensitivity guidelines.

Both parts utilize identical TO-220-6 Full Pack with Formed Leads packaging and through-hole mounting, ensuring direct mechanical and electrical compatibility in existing PCB designs without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can FSGM0565RBLDTU directly replace FSGM0565RBUDTU in existing designs?

A: Yes. Both parts are parametrically equivalent across all critical electrical and mechanical specifications. No circuit modifications or PCB redesign is required. Pin configuration, package footprint, and electrical performance are identical.

Q: What is the significance of the different Moisture Sensitivity Levels?

A: MSL 1 (Unlimited) indicates the original part has no moisture sensitivity restrictions. MSL 3 (168 Hours) for the substitute requires that the component be used within 168 hours of package opening under controlled humidity conditions. This is a manufacturing and storage consideration, not a functional limitation. Standard moisture-controlled storage practices will satisfy this requirement.

Q: Does ROHS3 compliance on the substitute part affect compatibility?

A: No. ROHS3 compliance indicates the substitute part meets environmental restrictions on hazardous substances. This is a regulatory advantage and does not impact electrical or mechanical compatibility.

Q: Are there any differences in fault protection between the two parts?

A: No. Both parts provide identical fault protection: Current Limiting, Over Load, Over Temperature, Over Voltage, and Short Circuit protection.

Q: What is the difference between REACH Unaffected and REACH Affected status?

A: REACH Affected indicates the substitute part contains substances tracked under REACH regulations. This requires compliance documentation within your supply chain but does not affect the part's technical performance or compatibility. REACH Unaffected status on the original part indicates no tracked substances. Both statuses are compliant for use; your procurement process should verify REACH documentation as required by your regulatory framework.

Q: Can I use the FSGM0565RBLDTU in new designs?

A: Yes. The substitute part is active and recommended for new designs. It provides the same electrical performance as the obsolete original part with the added benefit of ongoing manufacturer support and supply availability.