ERJ-MFBAF20MX Equivalent & Substitute Parts

Part Overview

The ERJ-MFBAF20MX is a 20 mOhms ±1% metal foil chip resistor in 0402 (1005 Metric) package rated for 0.333W (1/3W) power dissipation. Designed for current sense applications with moisture-resistant construction, this component operates across -55°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent components to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

ERJ-MFBAF20MX

Panasonic Electronic ComponentsIn Stock: 1140ERJ-MFBAF20MX Datasheet

Current PartRFQ

LVT04R0200FER

OhmiteIn Stock: 134155LVT04R0200FER Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERJ-MFBAF20MX is determined by strict equivalence across the following parameters:

• Resistance value: 20 mOhms
• Tolerance: ±1%
• Power rating: 0.333W minimum
• Package: 0402 (1005 Metric)
• Composition: Metal foil or metal element construction
• Application suitability: Current sense capability
• Compliance: ROHS3 certification
• Moisture sensitivity: MSL 1 or better

The substitute part LVT04R0200FER meets all these criteria. Both components share identical electrical specifications and physical package dimensions, with the substitute offering active product status and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The LVT04R0200FER is a direct functional equivalent for the ERJ-MFBAF20MX. Both components satisfy identical electrical and mechanical requirements for 20 mOhm current sense applications in 0402 package format.

Selection of the LVT04R0200FER is supported by:

• Active product status ensuring long-term availability and supply chain continuity
• ROHS3 compliance matching the original component
• MSL 1 rating providing unlimited moisture sensitivity protection
• Identical resistance, tolerance, and power rating specifications
• Identical physical package dimensions enabling direct PCB layout compatibility
• Extended operating temperature range (-55°C to 155°C) providing broader thermal margin

The substitute component exhibits lower temperature coefficient (±100ppm/°C versus ±150ppm/°C) and reduced seated height (0.014" versus 0.016"), both favorable characteristics for precision current sensing applications.

Frequently Asked Questions (FAQ)

Q: Can LVT04R0200FER be used as a direct replacement for ERJ-MFBAF20MX in existing designs?

A: Yes. Both components share identical resistance (20 mOhms), tolerance (±1%), power rating (0.333W), and 0402 package dimensions. Physical footprint compatibility is confirmed with the substitute component's seated height of 0.014" fitting within the original 0.016" specification.

Q: What is the primary reason for substitution?

A: The ERJ-MFBAF20MX is classified as obsolete. The LVT04R0200FER maintains active product status, ensuring continued availability for production and field replacement requirements.

Q: Are there compliance differences between the two parts?

A: No. Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Compliance certifications are equivalent.

Q: How do the temperature coefficients compare?

A: The LVT04R0200FER exhibits ±100ppm/°C versus the ERJ-MFBAF20MX at ±150ppm/°C. The substitute's lower temperature coefficient provides improved stability across the operating temperature range, particularly beneficial for precision current sensing circuits.

Q: What is the operating temperature difference?

A: The ERJ-MFBAF20MX operates -55°C to 125°C. The LVT04R0200FER extends to -55°C to 155°C, providing 30°C additional high-temperature margin. This expanded range does not create incompatibility; it represents enhanced capability.

Q: Are the physical dimensions identical?

A: Lateral dimensions are identical (0.039" L x 0.022" W). The substitute's seated height is 0.014" compared to 0.016" for the original, representing a 0.002" reduction that remains within standard PCB assembly tolerances.