ERT-D2FGL142S Equivalent & Substitute Parts

Part Overview

The ERT-D2FGL142S is an NTC thermistor manufactured by Panasonic Electronic Components, featuring a nominal resistance of 1.4kΩ at 25°C with a B25/50 value of 3900K. This disc-type temperature sensor is designed for through-hole mounting applications with a 5mm package diameter and 30mm lead wire length. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

ERT-D2FGL142S

Panasonic Electronic ComponentsIn Stock: 946ERT-D2FGL142S Datasheet

Current PartRFQ

MF11-0140005

CanthermIn Stock: 918MF11-0140005 Datasheet

SimilarRFQ

MF11-0140010

CanthermIn Stock: 1066MF11-0140010 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERT-D2FGL142S is determined by the following critical parameters:

• Resistance value at 25°C: 1.4kΩ (exact match required)
• Mounting type: Through hole configuration
• Package category: Disc form factor
• Operating temperature range: Must encompass or exceed the original -30°C to 60°C specification
• Power dissipation: Must meet or exceed 400 mW requirement
• Resistance tolerance: Acceptable within ±15% specification window

The identified substitute parts MF11-0140005 and MF11-0140010 satisfy these core substitution criteria. Both Cantherm alternatives maintain the 1.4kΩ nominal resistance, disc package geometry, and through-hole mounting configuration. The substitute parts extend the operating temperature range to -55°C to 125°C and increase maximum power dissipation to 500 mW, providing enhanced performance margins over the original specification.

Parameter Comparison

Engineering Selection Recommendations

Both MF11-0140005 and MF11-0140010 are active production parts from Cantherm and represent valid substitutes for the obsolete ERT-D2FGL142S. Selection between the two Cantherm alternatives depends on tolerance requirements for the specific application:

MF11-0140005 provides tighter resistance tolerance at ±5%, suitable for applications requiring higher accuracy in the 1.4kΩ nominal value. MF11-0140010 offers ±10% tolerance, appropriate for applications with broader tolerance windows.

Both substitute parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The extended operating temperature range (-55°C to 125°C) and increased power dissipation (500 mW) provide enhanced performance margins compared to the original specification. The slightly larger disc diameter (6.5mm versus 5mm) must be verified for mechanical fit within the target application's physical constraints.

Frequently Asked Questions (FAQ)

Q: Can MF11-0140005 and MF11-0140010 be used interchangeably with ERT-D2FGL142S?

A: Both Cantherm parts maintain the same 1.4kΩ nominal resistance and through-hole disc configuration. The primary difference is resistance tolerance: MF11-0140005 at ±5% versus MF11-0140010 at ±10%. Selection depends on the application's tolerance requirements. The slightly larger disc diameter (6.5mm) must be accommodated in the PCB layout.

Q: What is the impact of the larger disc diameter on mechanical compatibility?

A: The substitute parts feature a 6.5mm diameter disc compared to the original 5mm diameter. This dimensional change requires verification of the mounting hole spacing and surrounding component clearance in the target application. PCB layout modifications may be necessary.

Q: Are the substitute parts suitable for the full operating temperature range of the original?

A: Yes. The substitute parts operate from -55°C to 125°C, which exceeds the original -30°C to 60°C range. Applications operating within the original temperature window will function within the substitute parts' specifications.

Q: What are the compliance differences between the original and substitute parts?

A: The substitute parts carry ROHS3 compliance and REACH unaffected status. The original part's compliance status is not specified in available documentation. Current procurement standards typically require ROHS3 compliance, making the Cantherm alternatives preferable for new designs and ongoing support.

Q: How do the power dissipation ratings compare?

A: The original ERT-D2FGL142S is rated for 400 mW maximum power dissipation. Both substitute parts are rated for 500 mW, providing a 25% increase in power handling capability. This enhanced rating provides additional design margin for thermal management.