ERT-D2FGL332S Equivalent & Substitute Parts

Part Overview

The ERT-D2FGL332S is an NTC thermistor manufactured by Panasonic Electronic Components, featuring a 3.3kΩ resistance at 25°C with a B25/50 value of 4500K. This disc-type temperature sensor is designed for through-hole mounting applications with a 5mm package diameter. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

ERT-D2FGL332S

Panasonic Electronic ComponentsIn Stock: 719ERT-D2FGL332S Datasheet

Current PartRFQ

MF11-0330005

CanthermIn Stock: 837MF11-0330005 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERT-D2FGL332S is determined by the following critical parameters:

• Resistance Value: Must be 3.3kΩ at 25°C to maintain circuit design specifications
• Mounting Configuration: Through-hole mounting is required for PCB compatibility
• Package Geometry: Disc form factor with compatible physical dimensions
• Thermal Characteristics: B-value and operating temperature range must support the application's thermal response requirements
• Power Rating: Maximum power dissipation must meet or exceed 400 mW

The MF11-0330005 from Cantherm satisfies these core substitution criteria while offering enhanced specifications in certain parameters.

Parameter Comparison

Engineering Selection Recommendations

The MF11-0330005 serves as a direct functional substitute for the obsolete ERT-D2FGL332S based on the following factors:

• Identical Resistance Value: Both parts maintain 3.3kΩ at 25°C, ensuring circuit compatibility
• Enhanced Tolerance: The MF11-0330005 provides ±5% resistance tolerance compared to ±15%, improving measurement accuracy
• Expanded Operating Range: The -55°C ~ 125°C range of the MF11-0330005 exceeds the original -30°C ~ 60°C specification, supporting broader application environments
• Increased Power Rating: 500 mW dissipation capacity provides additional thermal margin over the 400 mW original specification
• Active Product Status: The MF11-0330005 is currently in active production, ensuring long-term availability and supply chain stability
• Regulatory Compliance: ROHS3 compliance certification meets current environmental standards

The B25/50 value difference (3950K vs 4500K) represents a 12.2% variation in thermal sensitivity. Applications requiring precise thermal response matching to the original 4500K specification should conduct thermal characterization testing to confirm suitability.

Frequently Asked Questions (FAQ)

Q: Can the MF11-0330005 be used as a direct drop-in replacement for the ERT-D2FGL332S?

A: The MF11-0330005 is functionally equivalent for applications where the core resistance value and through-hole mounting are the primary requirements. The package diameter difference (6.5mm vs 5mm) must be verified against PCB layout constraints. The B-value difference of 550K should be evaluated against thermal response requirements specific to your application.

Q: What is the significance of the B-value difference between these parts?

A: The B-value determines the thermistor's thermal sensitivity. The ERT-D2FGL332S has a B25/50 of 4500K, while the MF11-0330005 has 3950K. This 12.2% difference affects the rate of resistance change with temperature. Applications with strict thermal calibration requirements should account for this variation in system design.

Q: Does the improved tolerance of the MF11-0330005 affect compatibility?

A: The ±5% tolerance of the MF11-0330005 is tighter than the ±15% tolerance of the ERT-D2FGL332S. This represents an improvement that enhances measurement consistency and reduces circuit performance variation. No compatibility issues arise from this specification enhancement.

Q: Are there physical mounting considerations when substituting these parts?

A: The MF11-0330005 has a larger disc diameter (6.5mm) compared to the ERT-D2FGL332S (5mm). PCB layout and component spacing must accommodate this dimensional difference. Lead wire length specifications are not provided for the MF11-0330005, requiring verification against your assembly requirements.

Q: What compliance certifications should I verify for my application?

A: The MF11-0330005 carries ROHS3 compliance and REACH Unaffected status. If your application requires specific environmental or regulatory certifications beyond these, verify that the substitute part meets those additional requirements before implementation.