MMF003247 Strain Gauge Equivalent & Substitute Parts

Part Overview

The MMF003247 is a linear strain gauge manufactured by Micro-Measurements (Division of Vishay Precision Group). This component is classified as obsolete, making identification of suitable substitutes necessary for ongoing applications and new designs. The gauge features a 350 Ohm resistance with ±5% strain range capability and is designed for precision measurement applications requiring stable performance across a wide operating temperature range.

Substiute Parts

MMF003247

Micro-Measurements (Division of Vishay Precision Group)In Stock: 945MMF003247 Datasheet

Current PartRFQ

MMF403929

VPG Micro-MeasurementsIn Stock: 1132MMF403929 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MMF003247 is determined by strict equivalence across the following critical parameters:

• Resistance Value: 350 Ohms (exact match required)
• Resistance Tolerance: ±0.3% (exact match required)
• Strain Range: ±5% (exact match required)
• Pattern Type: Linear (exact match required)
• Active Dimensions: 0.250" length × 0.180" width (exact match required)
• Operating Temperature Range: -100 ~ 350°F (-75 ~ 175°C) (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The substitute part MMF403929 meets all critical electrical and mechanical parameters required for direct substitution with the obsolete MMF003247.

Parameter Comparison

Engineering Selection Recommendations

The MMF403929 is the manufacturer-recommended substitute for the obsolete MMF003247. Both components are manufactured by the same organization (Micro-Measurements/VPG) and share identical electrical specifications and operating characteristics.

Product Status Consideration: The MMF003247 is obsolete, while MMF403929 maintains active production status. This ensures continued availability and supply chain reliability for new designs and ongoing production requirements.

Compliance Status: Both parts maintain RoHS compliance. The MMF403929 carries ROHS3 certification and is REACH Unaffected, meeting current regulatory requirements for electronic components.

Dimensional Compatibility: All critical active dimensions and overall length are identical. The overall width of MMF403929 (0.56" / 14.2mm) is marginally larger than MMF003247 (0.27" / 6.9mm), which does not affect electrical performance or functional compatibility in standard mounting configurations.

Electrical Equivalence: Resistance value, tolerance, strain range, and operating temperature specifications are identical, ensuring direct functional substitution without circuit redesign or recalibration.

Frequently Asked Questions (FAQ)

Q: Can MMF403929 be used as a direct replacement for MMF003247?

A: Yes. MMF403929 is the manufacturer-recommended substitute. All critical electrical parameters (350 Ohm resistance, ±0.3% tolerance, ±5% strain range) and operating specifications (-100 ~ 350°F temperature range) are identical.

Q: What is the difference between these two strain gauges?

A: The primary differences are product status and packaging. MMF003247 is obsolete; MMF403929 is in active production. MMF403929 has a marginally larger overall width (0.56" vs 0.27") but identical active dimensions and electrical characteristics.

Q: Are there any compliance differences?

A: Both parts are RoHS compliant. MMF403929 carries ROHS3 certification and is REACH Unaffected, representing current regulatory compliance standards.

Q: Does the wider overall width of MMF403929 affect mounting?

A: No. The active measurement area dimensions are identical. The overall width difference does not impact electrical performance or standard mounting applications.

Q: What inventory status should I expect?

A: MMF003247 has 869 pieces in stock (obsolete status). MMF403929 has 1067 pieces in stock with active production status, ensuring better long-term availability.

Q: Are these parts from different manufacturers?

A: No. Both are manufactured by Micro-Measurements, a division of Vishay Precision Group. MMF403929 is marketed under the VPG Micro-Measurements brand designation.