MCR18ERTF3241 Equivalent & Substitute Parts

Part Overview

The MCR18ERTF3241 is a 3.24 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) surface mount package manufactured by Rohm Semiconductor. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct board-level replacement without design modification.

Substiute Parts

MCR18ERTF3241

Rohm SemiconductorIn Stock: 740MCR18ERTF3241 Datasheet

Current PartRFQ

CRCW12063K24FKEA

Vishay DaleIn Stock: 15659CRCW12063K24FKEA Datasheet

DirectRFQ

ERJ-8ENF3241V

Panasonic Electronic ComponentsIn Stock: 103801ERJ-8ENF3241V Datasheet

DirectRFQ

RC1206FR-073K24L

YAGEOIn Stock: 67860RC1206FR-073K24L Datasheet

DirectRFQ

RMCF1206FT3K24

Stackpole Electronics IncIn Stock: 5375RMCF1206FT3K24 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

• Resistance value: 3.24 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W (exact match required)
• Package: 1206 (3216 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• RoHS3 compliance (required for regulatory equivalence)
• MSL rating: 1 (Unlimited) (exact match required)

All four substitute parts meet these criteria and are electrically and mechanically interchangeable with the MCR18ERTF3241.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendations (Active Status):

CRCW12063K24FKEA (Vishay Dale) and RC1206FR-073K24L (YAGEO) are preferred substitutes due to active product status and full availability. Both maintain identical electrical and mechanical specifications with ROHS3 compliance. CRCW12063K24FKEA includes automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade reliability. RC1206FR-073K24L features moisture-resistant construction, appropriate for high-humidity environments.

RMCF1206FT3K24 (Stackpole Electronics Inc) is an active alternative with automotive AEC-Q200 qualification and equivalent performance characteristics.

Secondary Recommendation (Not For New Designs):

ERJ-8ENF3241V (Panasonic Electronic Components) carries "Not For New Designs" status and should be used only for legacy system maintenance or repair applications where supply continuity from existing inventory is prioritized.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts be used interchangeably on the same PCB?

A: Yes. All substitute parts share identical resistance value (3.24 kOhms), tolerance (±1%), power rating (0.25W), package (1206), and operating temperature range (-55°C ~ 155°C). They are electrically and mechanically interchangeable without PCB redesign.

Q: What is the difference between automotive-qualified and standard versions?

A: CRCW12063K24FKEA and RMCF1206FT3K24 carry AEC-Q200 automotive qualification, indicating compliance with automotive reliability and environmental stress testing standards. Standard versions (RC1206FR-073K24L) meet general industrial requirements. Selection depends on application requirements.

Q: Why is ERJ-8ENF3241V marked "Not For New Designs"?

A: This designation indicates the manufacturer has transitioned the product to end-of-life status. While electrically equivalent and currently in stock, it should not be selected for new product development. Use only for repair or legacy system support.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within the 1206 package specification. Length ranges from 0.120" to 0.126", width from 0.061" to 0.063", and height from 0.024" to 0.028". These variations remain within standard 1206 footprint tolerances and do not affect PCB compatibility.

Q: Do all parts meet RoHS3 compliance?

A: Yes. All listed parts, including the original MCR18ERTF3241, are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.