CEA-03-250UW-350 Strain Gauge Equivalent & Substitute Parts

Part Overview

The CEA-03-250UW-350 is a linear 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 0.250" (6.35mm) active length, 0.180" (4.57mm) active width, and 350 Ohms nominal resistance with ±5% strain measurement capability.

Due to its obsolete status, identifying functionally equivalent active production alternatives is necessary for ongoing system maintenance, repair, and new design implementations. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct compatibility without circuit redesign or recalibration.

Substiute Parts

MMF003241

Micro-Measurements (Division of Vishay Precision Group)In Stock: 894MMF003241 Datasheet

Current PartRFQ

MMF403975

Micro-Measurements (Division of Vishay Precision Group)In Stock: 1052MMF403975 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CEA-03-250UW-350 is based on strict equivalence of the following parameters:

Electrical Parameters:

• Resistance value: 350 Ohms
• Resistance tolerance: ±0.3%
• Strain range: ±5%

Mechanical Parameters:

• Pattern type: Linear
• Active length: 0.250" (6.35mm)
• Active width: 0.180" (4.57mm)
• Overall dimensions: 0.55" (14.0mm) length × 0.27" (6.9mm) width

Environmental Parameters:

• Operating temperature range: -100 ~ 350°F (-75 ~ 175°C)
• Moisture sensitivity level: 1 (Unlimited)

The substitute part MMF403975 maintains all specified electrical, mechanical, and environmental parameters. The primary distinction is product status: MMF403975 is in active production, whereas the original CEA-03-250UW-350 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution Criteria:

The MMF403975 (CEA-03-250UWA-350) is a direct functional equivalent to the obsolete MMF003241 (CEA-03-250UW-350). All electrical, mechanical, and environmental specifications are identical. The substitute part is currently in active production status, ensuring availability for procurement and supply chain continuity.

Selection Basis:

1. Electrical Equivalence: Both parts operate at 350 Ohms with ±0.3% tolerance and ±5% strain measurement range. No circuit modifications are required.

2. Mechanical Compatibility: Identical active dimensions (0.250" × 0.180"), overall pattern dimensions (0.450" × 0.180"), and overall envelope (0.55" × 0.27") ensure direct mounting compatibility without substrate redesign.

3. Environmental Compatibility: Identical operating temperature range (-100 ~ 350°F) and MSL rating (1 - Unlimited) confirm suitability for equivalent application environments.

4. Production Status: The substitute part's active production status provides long-term availability and supply reliability compared to the obsolete original part.

Implementation Consideration:

The packaging specification for the substitute part is listed as Bulk. Verify packaging requirements for your procurement process to ensure compatibility with receiving, storage, and handling procedures.

Frequently Asked Questions (FAQ)

Q1: Can MMF403975 be used as a direct replacement for MMF003241 without any modifications?

A: Yes. The MMF403975 (CEA-03-250UWA-350) maintains identical electrical specifications (350 Ohms, ±0.3% tolerance, ±5% strain range), mechanical dimensions (0.250" active length, 0.180" active width), and environmental operating parameters (-100 ~ 350°F). No circuit redesign, recalibration, or mounting modifications are required.

Q2: What is the primary difference between these two part numbers?

A: The CEA-03-250UW-350 (MMF003241) is obsolete and no longer manufactured. The CEA-03-250UWA-350 (MMF403975) is the active production equivalent. All technical specifications remain identical; the difference is production status and availability.

Q3: Are there any compatibility concerns with packaging?

A: The substitute part MMF403975 is specified as Bulk packaging. Confirm that Bulk packaging meets your receiving, storage, and handling requirements. If alternative packaging is needed, contact the manufacturer for available options.

Q4: Do the strain gauges require recalibration after substitution?

A: No recalibration is required. Both parts share identical resistance tolerance (±0.3%), strain range (±5%), and operating temperature specifications. Existing calibration data and measurement systems remain valid.

Q5: Are there any environmental or storage differences between the two parts?

A: No. Both parts have identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special moisture control requirements during storage or handling. Environmental operating limits are identical (-100 ~ 350°F).

Q6: Can multiple units be sourced from different batches without compatibility issues?

A: Yes. Both parts maintain ±0.3% resistance tolerance and identical electrical specifications. Gauges from different manufacturing batches are electrically and mechanically interchangeable within the specified tolerance range.