C2A-13-250LW-120 Equivalent & Substitute Parts

Part Overview

The MMF307485 C2A-13-250LW-120 is a linear strain gauge manufactured by Micro-Measurements (Division of Vishay Precision Group). This component is classified as obsolete and operates within a strain range of ±3% with a nominal resistance of 120 Ohms. The gauge features an active length of 0.250" (6.35mm) and active width of 0.100" (2.54mm), designed for precision stress and strain measurement applications across industrial and laboratory environments.

Due to its obsolete product status, locating replacement inventory from original manufacturing sources presents supply chain challenges. Identifying equivalent substitute parts ensures continuity in production, maintenance, and repair operations for systems currently utilizing this strain gauge configuration.

Substiute Parts

MMF307485

Micro-Measurements (Division of Vishay Precision Group)In Stock: 1256MMF307485 Datasheet

Current PartRFQ

MMF404430

Micro-Measurements (Division of Vishay Precision Group)In Stock: 1004MMF404430 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the C2A-13-250LW-120 strain gauge is determined by the following critical parameters:

Primary Substitution Criteria:

• Pattern Type: Linear configuration
• Resistance Value: 120 Ohms nominal
• Resistance Tolerance: ±0.6%
• Active Dimensions: 0.250" length × 0.100" width
• Operating Temperature Range: -60 ~ 180°F (-50 ~ 80°C)
• Strain Range Capability: ±3% minimum

Secondary Compatibility Factors:

• Moisture Sensitivity Level: MSL 1 (Unlimited)
• Manufacturer: Micro-Measurements (Vishay Precision Group)
• Series Compatibility: C2A series or equivalent linear gauge series

The substitute part MMF404430 (C4A-13 LINEAR) is identified as the manufacturer-recommended replacement. This substitution is based on functional equivalence within the Micro-Measurements product portfolio and continuity of supply from the original manufacturer.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The original MMF307485 C2A-13-250LW-120 carries an obsolete designation, indicating discontinued manufacturing and limited long-term availability. The manufacturer-recommended substitute MMF404430 C4A-13 maintains active product status, ensuring ongoing availability and manufacturing support.

Compliance and Certification: The substitute part MMF404430 is certified RoHS Compliant, meeting current environmental and regulatory requirements for electronic components in industrial applications. Both parts maintain MSL 1 (Unlimited) moisture sensitivity classification, indicating equivalent environmental stability.

Supply Chain Continuity: Selection of the manufacturer-recommended substitute ensures direct compatibility with Micro-Measurements product support infrastructure, technical documentation, and quality assurance protocols. Both components originate from the same manufacturer division, maintaining consistency in material composition, calibration standards, and performance characteristics.

Frequently Asked Questions (FAQ)

Q: What determines whether MMF404430 can substitute for MMF307485?

A: Substitution is based on matching critical electrical and mechanical parameters: linear pattern type, 120 Ohm resistance value, ±0.6% resistance tolerance, active dimensions of 0.250" × 0.100", operating temperature range of -60 ~ 180°F, and ±3% strain range capability. The manufacturer-recommended designation confirms functional equivalence.

Q: Why is the original MMF307485 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production of this specific model. The C2A series has been superseded by newer product lines such as the C4A series, which offer equivalent performance with improved manufacturing processes and compliance certifications.

Q: Are there dimensional compatibility concerns when substituting MMF404430 for MMF307485?

A: Dimensional specifications for the substitute part MMF404430 are not fully detailed in available data. Before final selection, verify that the C4A-13 configuration matches the required active length (0.250"), active width (0.100"), and overall pattern dimensions of the original C2A-13-250LW-120 gauge.

Q: Does the RoHS Compliance of MMF404430 affect compatibility?

A: RoHS Compliance of the substitute part indicates adherence to current environmental standards and does not negatively impact electrical or mechanical compatibility. This certification enhances suitability for applications subject to modern regulatory requirements.

Q: What is the significance of MSL 1 (Unlimited) for both parts?

A: MSL 1 (Unlimited) classification indicates both components have unlimited shelf life and do not require special moisture-controlled storage conditions. This ensures equivalent handling, storage, and deployment requirements across both the original and substitute parts.

Q: Should operating temperature range be verified for the substitute part?

A: Operating temperature range specifications for MMF404430 are not provided in available technical data. Confirm that the C4A-13 substitute maintains the -60 ~ 180°F (-50 ~ 80°C) operating range required by the original application before final component selection.