HF920BGS-Z Equivalent & Substitute Parts

Part Overview

The HF920BGS-Z is an active, isolated offline flyback converter PMIC manufactured by Monolithic Power Systems Inc. This 900V breakdown voltage device operates at fixed frequency up to 150kHz with integrated switching capability, designed for low-power isolated power supply applications requiring EMI optimization. The part is housed in a 14-SOIC-11 surface mount package and is RoHS3 compliant.

Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or equivalent functional performance across identical electrical and mechanical specifications.

Substiute Parts

HF920BGS-Z

Monolithic Power Systems Inc.In Stock: 1044HF920BGS-Z Datasheet

Current PartRFQ

HF920BGS-P

Monolithic Power Systems Inc.In Stock: 1179HF920BGS-P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The HF920BGS-Z and its identified substitute operate within the same parametric classification for offline flyback converter PMICs. Substitution eligibility is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Voltage breakdown rating: 900V
• Switching frequency capability: Up to 150kHz
• Power handling: 10 W
• Supply voltage range: 10V ~ 24V
• Startup voltage: 4 V
• Duty cycle: 83%
• Isolation topology: Isolated output
• Integrated switching: Internal switch present
• Fault protection suite: Current Limiting, Over Load, Over Temperature, Short Circuit

Mechanical Equivalence Criteria:

• Package type: 14-SOIC-11 surface mount
• Physical dimensions: 0.154" width, 3.90mm
• Mounting technology: Surface mount

Compliance Equivalence Criteria:

• RoHS3 compliance
• Moisture sensitivity level: MSL 2 (1 Year)
• Product status: Active

Substitute parts must match all parameters listed above without deviation. No parameter relaxation or tolerance interpretation is applied.

Parameter Comparison

Engineering Selection Recommendations

Both HF920BGS-Z and HF920BGS-P are active products from Monolithic Power Systems Inc. with identical electrical, mechanical, and compliance specifications. Selection between these parts is based on availability and supply chain requirements rather than functional differentiation.

HF920BGS-Z is suitable for applications where this specific part number is specified or preferred in design documentation.

HF920BGS-P is suitable as a direct substitute when HF920BGS-Z availability is constrained. Both parts carry identical RoHS3 compliance and REACH unaffected status, ensuring regulatory equivalence in end-use applications.

The 14-SOIC-11 surface mount package is identical across both parts, requiring no PCB layout modifications. Moisture sensitivity level MSL 2 (1 Year) applies uniformly to both variants.

Frequently Asked Questions (FAQ)

Q: Can HF920BGS-P be used as a direct replacement for HF920BGS-Z in production?

A: Yes. Both parts are parametrically identical across all electrical specifications (900V breakdown, 10W power, 150kHz switching frequency, isolated flyback topology), mechanical packaging (14-SOIC-11), and compliance certifications (RoHS3, REACH unaffected). No design changes are required.

Q: Are there any differences in the 14-SOIC-11 package between these parts?

A: No. Both parts use identical 14-SOIC (0.154", 3.90mm Width) surface mount packaging with 11 leads. PCB footprints, solder reflow profiles, and handling procedures are identical.

Q: Do both parts have the same fault protection capabilities?

A: Yes. Both HF920BGS-Z and HF920BGS-P include identical fault protection: Current Limiting, Over Load, Over Temperature, and Short Circuit protection.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 125°C junction temperature (TJ), suitable for industrial and extended temperature applications.

Q: Are there any supply voltage differences between these parts?

A: No. Both parts accept supply voltage in the range of 10V ~ 24V (Vcc/Vdd) with identical 4V startup voltage and 83% duty cycle specifications.

Q: Do both parts require identical PCB layout considerations?

A: Yes. Identical package type, pin count, and electrical specifications mean both parts use the same PCB layout. No design modifications are necessary when substituting between HF920BGS-Z and HF920BGS-P.

Q: What is the moisture sensitivity level for storage and handling?

A: Both parts carry MSL 2 (1 Year) rating, requiring standard moisture control during storage and a maximum of one year shelf life under controlled conditions before use.