MF52F503F3950 - Equivalent & Substitute Parts

Part Overview

The MF52F503F3950 is an NTC thermistor manufactured by Cantherm, featuring a nominal resistance of 50kΩ at 25°C with a B-value of 3950K. This component is classified as a Temperature Sensor in the Bead package configuration and is ROHS3 Compliant. The part is currently Active in product status with 692 pieces in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required for applications where the primary part is unavailable or when production requirements necessitate alternative sourcing.

Substiute Parts

MF52F503F3950

CanthermIn Stock: 722MF52F503F3950 Datasheet

Current PartRFQ

B57560G0503F000

EPCOS - TDK ElectronicsIn Stock: 1781B57560G0503F000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for NTC thermistor sensors is determined by the following critical parameters: nominal resistance value at 25°C, resistance tolerance, B-value characteristics, operating temperature range, maximum power dissipation rating, and mounting configuration. The substitute part B57560G0503F000 shares the primary electrical characteristics of 50kΩ nominal resistance at 25°C with ±1% tolerance and 50mW maximum power dissipation. Both parts operate as Through Hole mounted Bead configuration sensors. The B-value specification differs between parts (MF52F503F3950 specified at B25/50=3950K versus B57560G0503F000 with B25/85=3992K and B25/100=4006K), but both maintain ±1% B-value tolerance. The substitute part extends the maximum operating temperature to 200°C compared to 125°C for the primary part. Both parts are ROHS3 Compliant and carry EAR99 ECCN classification.

Parameter Comparison

Engineering Selection Recommendations

Both the MF52F503F3950 and B57560G0503F000 are Active status components with ROHS3 compliance and EAR99 ECCN classification, suitable for industrial temperature sensing applications. Selection between these parts should be based on operational temperature requirements: the MF52F503F3950 is appropriate for applications with maximum operating temperatures up to 125°C, while the B57560G0503F000 accommodates extended temperature operation up to 200°C. The identical 50kΩ resistance value and 50mW power rating ensure functional compatibility in circuits designed for the primary part specification. The B57560G0503F000 provides higher inventory availability at 1704 pieces compared to 692 pieces for the MF52F503F3950, and features glass-encapsulated Bead construction versus standard Bead packaging. Both parts maintain ±1% resistance and B-value tolerances.

Frequently Asked Questions (FAQ)

Q: What determines if a thermistor can substitute for the MF52F503F3950? A: The primary substitution criteria are identical nominal resistance at 25°C (50kΩ), matching resistance tolerance (±1%), compatible B-value tolerance (±1%), equivalent or higher maximum operating temperature, and matching or exceeding power dissipation rating (50mW). Mounting configuration must be Through Hole Bead type.

Q: How do the B-value specifications differ between these parts? A: The MF52F503F3950 specifies B25/50 = 3950K. The B57560G0503F000 specifies B25/85 = 3992K and B25/100 = 4006K. Both maintain ±1% B-value tolerance. The B-value defines the thermistor's temperature-resistance relationship and must be considered for applications requiring precise temperature coefficient matching.

Q: Does the glass-encapsulated Bead configuration of B57560G0503F000 affect compatibility? A: The glass-encapsulated Bead construction of the B57560G0503F000 provides enhanced mechanical protection and moisture resistance compared to standard Bead packaging. This difference does not prevent electrical substitution but may affect physical characteristics and environmental resilience in specific applications.

Q: Why does the B57560G0503F000 have a wider operating temperature range? A: The B57560G0503F000 is rated for -55°C to 200°C operation compared to -55°C to 125°C for the MF52F503F3950. This extended range is a design characteristic of the EPCOS component family and should be verified against application requirements; extended ratings do not compromise performance within the MF52F503F3950's specified temperature window.

Q: Are there any regulatory or compliance differences? A: Both components are ROHS3 Compliant, REACH Unaffected, and carry EAR99 ECCN classification. No compliance barriers exist for substitution purposes.