HF01B00DP-LF Equivalent & Substitute Parts

Part Overview

The HF01B00DP-LF is an offline switch flyback converter IC manufactured by Monolithic Power Systems Inc., designed for isolated power management applications. This component operates at switching frequencies up to 150kHz with a maximum power rating of 54W and features integrated fault protection including over-load, over-temperature, and over-voltage detection. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

HF01B00DP-LF

Monolithic Power Systems Inc.In Stock: 1028HF01B00DP-LF Datasheet

Current PartRFQ

HF500GP-30

Monolithic Power Systems Inc.In Stock: 1417HF500GP-30 Datasheet

MFR RecommendedRFQ

HF500GS-15

Monolithic Power Systems Inc.In Stock: 1100HF500GS-15 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HF01B00DP-LF is determined by the following critical parameters:

• Topology: Flyback converter architecture
• Output Isolation: Isolated configuration
• Voltage - Breakdown: 700V rating
• Package Compatibility: 8-DIP form factor with 7 leads for through-hole mounting
• Fault Protection: Over-load, over-temperature, and over-voltage protection
• RoHS Compliance: ROHS3 Compliant status

The substitute parts identified maintain these core electrical and mechanical characteristics. Variations in switching frequency, power rating, supply voltage range, and operating temperature are secondary parameters that may require circuit design evaluation based on specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

HF500GP-30 is the primary substitute for through-hole applications. This part maintains the 8-DIP package format, 700V breakdown voltage, and isolated flyback topology. Both parts are ROHS3 compliant. The HF500GP-30 is currently in active production status with extended operating temperature range (-40°C ~ 125°C) and includes short-circuit protection in addition to the over-load, over-temperature, and over-voltage protection present in the original part. Supply voltage range differs (12.5V ~ 24V versus 8V ~ 20V), and switching frequency is reduced to 25kHz with maximum power output of 45W.

HF500GS-15 is an alternative for applications where surface-mount technology is acceptable. This part shares the same topology, isolation, and breakdown voltage specifications. However, the 8-SOIC package represents a different form factor requiring PCB redesign. The power rating of 1.5W is significantly lower, limiting applicability to lower-power isolated converter designs. This part is also ROHS3 compliant and active in production.

Selection between HF500GP-30 and HF500GS-15 depends on mounting technology requirements and power delivery specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can HF500GP-30 directly replace HF01B00DP-LF without circuit modification?

A: Both parts share the 8-DIP through-hole package, 700V breakdown voltage, isolated flyback topology, and ROHS3 compliance. However, differences in supply voltage range (12.5V ~ 24V versus 8V ~ 20V), switching frequency (25kHz versus up to 150kHz), and maximum power output (45W versus 54W) may require circuit evaluation. Pin-level compatibility must be confirmed against the specific application schematic.

Q: Why is HF500GS-15 listed as a substitute if the power rating is only 1.5W?

A: HF500GS-15 meets the core electrical substitution criteria (topology, isolation, breakdown voltage, fault protection, compliance standards). However, the significantly lower power rating restricts its applicability to low-power isolated converter designs only. This part is suitable only for applications where 1.5W output power is sufficient.

Q: What is the impact of switching frequency differences between these parts?

A: The HF01B00DP-LF operates at up to 150kHz, while both HF500GP-30 and HF500GS-15 operate at 25kHz. Lower switching frequency affects transformer design, output filter requirements, and electromagnetic interference characteristics. Circuit redesign may be necessary to accommodate the reduced switching frequency.

Q: Are all three parts RoHS compliant?

A: Yes. HF01B00DP-LF, HF500GP-30, and HF500GS-15 are all ROHS3 compliant.

Q: What is the difference between the supply voltage ranges?

A: HF01B00DP-LF accepts 8V ~ 20V supply voltage, while HF500GP-30 and HF500GS-15 require 12.5V ~ 24V. Applications with supply voltages below 12.5V cannot use the HF500 series parts without additional input conditioning.