CEA-13-125UR-350 Rectangular Rosette Strain Gauge Equivalent & Substitute Parts

Part Overview

The CEA-13-125UR-350 is a rectangular rosette strain gauge manufactured by Micro-Measurements (Division of Vishay Precision Group). This component is classified as obsolete, with 842 units currently in stock. The gauge features a ±5% strain range, 350 Ohms resistance, and operates across a temperature range of -100 to 350°F (-75 to 175°C). Due to its obsolete status, identifying active equivalent parts is essential for ongoing production requirements and long-term supply chain planning.

Substiute Parts

MMF003145

Micro-Measurements (Division of Vishay Precision Group)In Stock: 899MMF003145 Datasheet

Current PartRFQ

MMF404269

Micro-Measurements (Division of Vishay Precision Group)In Stock: 1106MMF404269 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Mandatory Matching Parameters:

• Pattern Type: Rectangular Rosette
• Strain Range: ±5%
• Resistance: 350 Ohms
• Resistance Tolerance: ±0.4%
• Active Length: 0.125" (3.18mm)
• Active Width: 0.060" (1.52mm)
• Overall Pattern Length: 0.300" (7.62mm)
• Overall Pattern Width: 0.560" (14.22mm)
• Overall Length: 0.42" (10.7mm)
• Overall Width: 0.62" (15.7mm)
• Operating Temperature Range: -100 to 350°F (-75 to 175°C)
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part MMF404269 maintains identical electrical and mechanical specifications while offering active product status, ensuring continued availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The MMF404269 (CEA-13-125URA-350) is the direct equivalent substitute for the obsolete CEA-13-125UR-350 (MMF003145). Both components share identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: MMF404269 is active and currently in production, while MMF003145 is obsolete.

For new designs and ongoing production requirements, MMF404269 is the appropriate selection. The active status ensures long-term availability, supply chain stability, and access to manufacturer support. Both components carry identical compliance certifications (ECCN: EAR99; HTSUS: 9031.80.8085) and moisture sensitivity ratings.

The packaging difference (bulk for MMF404269 versus unspecified for MMF003145) does not affect functional compatibility and relates only to procurement and inventory management considerations.

Frequently Asked Questions (FAQ)

Q: Can MMF404269 be used as a direct replacement for MMF003145?

A: Yes. MMF404269 is a direct equivalent substitute. All electrical parameters (strain range, resistance, resistance tolerance, operating temperature range) and mechanical dimensions (active length, active width, overall pattern dimensions) are identical between the two parts.

Q: What is the primary reason to transition from MMF003145 to MMF404269?

A: MMF003145 is classified as obsolete, while MMF404269 is an active product. Transitioning to MMF404269 ensures continued supply availability, manufacturer support, and long-term production viability.

Q: Are there any functional differences between these two strain gauges?

A: No functional differences exist. Both components are rectangular rosette strain gauges with ±5% strain range, 350 Ohms resistance, and identical dimensional specifications. The designation change from "UR" to "URA" reflects product line evolution rather than functional modification.

Q: Does packaging affect the substitution?

A: Packaging (bulk for MMF404269) does not affect functional compatibility or electrical performance. Packaging differences relate to procurement quantities and inventory management only.

Q: Are both parts suitable for the same temperature range applications?

A: Yes. Both MMF003145 and MMF404269 operate across the identical temperature range of -100 to 350°F (-75 to 175°C).

Q: What is the moisture sensitivity rating for these components?

A: Both components carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.