CEA-13-125UT-350 Strain Gauge Equivalent & Substitute Parts

Part Overview

The CEA-13-125UT-350 is a Tee Rosette strain gauge manufactured by Micro-Measurements (Division of Vishay Precision Group). This component is classified as obsolete, indicating it is no longer in active production. The gauge features a ±5% strain range with 350 Ohms resistance and is designed for applications requiring three-axis strain measurement in a tee rosette configuration.

Due to its obsolete status, identifying equivalent substitute parts is essential for maintaining system compatibility and ensuring continued availability for repair, replacement, and new design implementations. The substitute identified maintains functional equivalence while offering active product status and improved availability.

Substiute Parts

MMF003157

Micro-Measurements (Division of Vishay Precision Group)In Stock: 947MMF003157 Datasheet

Current PartRFQ

MMF403956

Micro-Measurements (Division of Vishay Precision Group)In Stock: 1238MMF403956 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CEA-13-125UT-350 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Pattern Type: Tee Rosette configuration for three-axis strain measurement
• Strain Range: ±5% nominal accuracy
• Resistance: 350 Ohms nominal value
• Resistance Tolerance: ±0.4% precision class
• Active Dimensions: 0.125" (3.18mm) length and 0.165" (4.19mm) width per section
• Operating Temperature Range: -100 ~ 350°F (-75 ~ 175°C) continuous operation capability
• Moisture Sensitivity Level: MSL 1 (Unlimited) for storage and handling

The substitute part MMF403956 maintains identical electrical specifications and active gauge dimensions. Dimensional variations in overall pattern and overall length are within acceptable mechanical tolerances for mounting and integration. The substitute transitions from obsolete to active product status, ensuring long-term supply chain viability.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: MMF403956

The MMF403956 is the direct equivalent substitute for the CEA-13-125UT-350. This substitution is supported by:

1. Electrical Equivalence: Identical resistance (350 Ohms), tolerance (±0.4%), and strain range (±5%) ensure drop-in compatibility with existing measurement circuits and data acquisition systems.

2. Mechanical Compatibility: Active gauge dimensions (0.125" × 0.165") and overall envelope dimensions are identical or within acceptable tolerances for existing mounting fixtures and substrate designs.

3. Thermal Performance: Identical operating temperature range (-100 ~ 350°F) maintains performance specifications across all intended application environments.

4. Product Status Advantage: Transition from obsolete to active product status ensures continued availability, supply chain stability, and access to manufacturer technical support.

5. Compliance: Both parts maintain MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints for storage, handling, or deployment.

Frequently Asked Questions (FAQ)

Q: Can MMF403956 be used as a direct replacement for CEA-13-125UT-350 in existing assemblies?

A: Yes. The MMF403956 maintains identical electrical specifications (350 Ohms, ±0.4% tolerance, ±5% strain range) and active gauge dimensions (0.125" × 0.165"). Overall pattern dimensions vary by 0.002" (0.06mm) in length, which is within standard mechanical tolerances for strain gauge mounting applications.

Q: What is the significance of the product status change from Obsolete to Active?

A: The transition to active status indicates the substitute part is in current production. This ensures long-term availability, consistent manufacturing quality, and access to manufacturer technical documentation and support resources.

Q: Are there any packaging differences between the main part and substitute?

A: The main part (CEA-13-125UT-350) is specified with standard packaging, while the substitute (MMF403956) is supplied in Bulk packaging. Both maintain identical component specifications and performance characteristics.

Q: Does the Tee Rosette pattern remain unchanged in the substitute?

A: Yes. Both parts feature identical Tee Rosette configuration for three-axis strain measurement. The active gauge dimensions per section (0.125" × 0.165") are identical, ensuring equivalent measurement sensitivity and spatial resolution.

Q: Are there any temperature or environmental performance differences?

A: No. Both parts operate across the identical temperature range (-100 ~ 350°F / -75 ~ 175°C) and maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating equivalent environmental performance.

Q: What is the inventory status for the substitute part?

A: MMF403956 has 1,158 pieces in new original stock, compared to 906 pieces for the obsolete main part. The substitute offers improved availability for immediate procurement.