RMCF1206FT237K Equivalent & Substitute Parts

Part Overview

The RMCF1206FT237K is a 237 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This automotive-grade thick film resistor meets AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently active in production with 954 units in stock.

Substitute parts become necessary due to supply constraints, manufacturing discontinuation, or design flexibility requirements. All listed alternatives maintain identical electrical specifications and package dimensions, ensuring direct functional equivalence in circuit applications.

Key Parameters

Parameter	Value
Resistance	237 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

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

Resistance value: 237 kOhms
Tolerance: ±1%
Power rating: 0.25W
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Number of terminations: 2
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: 1 (Unlimited)

All substitute parts listed meet these criteria. Physical dimensions (length, width, height) may vary within acceptable tolerances for 1206 package specifications. Product status and feature sets (automotive AEC-Q200, moisture resistance, high voltage) are noted for selection purposes but do not disqualify substitution based on core electrical parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op. Temp Range (°C)	Product Status	Features	Inventory (Pcs)
RMCF1206FT237K	Stackpole Electronics Inc	237 kOhms	±1%	0.25	1206	±100	-55 ~ 155	Active	Automotive AEC-Q200	954
CR1206-FX-2373ELF	Bourns Inc.	237 kOhms	±1%	0.25	1206	±100	-55 ~ 155	Active	Moisture Resistant	19723
CRCW1206237KFKEA	Vishay Dale	237 kOhms	±1%	0.25	1206	±100	-55 ~ 155	Active	Automotive AEC-Q200	14448
ERJ-8ENF2373V	Panasonic Electronic Components	237 kOhms	±1%	0.25	1206	±100	-55 ~ 155	Not For New Designs	Automotive AEC-Q200	85117
KTR18EZPF2373	Rohm Semiconductor	237 kOhms	±1%	0.25	1206	±100	-55 ~ 155	Active	Automotive AEC-Q200, High Voltage	14511
MCR18ERTF2373	Rohm Semiconductor	237 kOhms	±1%	0.25	1206	±100	-55 ~ 155	Discontinued at DiGi Electronics	None	4188
RC1206FR-07237KL	YAGEO	237 kOhms	±1%	0.25	1206	±100	-55 ~ 155	Active	Moisture Resistant	8683

Engineering Selection Recommendations

For new designs and active production, prioritize parts with Active product status: RMCF1206FT237K (Stackpole), CR1206-FX-2373ELF (Bourns), CRCW1206237KFKEA (Vishay Dale), KTR18EZPF2373 (Rohm), and RC1206FR-07237KL (YAGEO).

For automotive applications requiring AEC-Q200 certification, select from RMCF1206FT237K, CRCW1206237KFKEA, ERJ-8ENF2373V, or KTR18EZPF2373. The KTR18EZPF2373 offers additional high voltage capability if required by circuit design.

Avoid MCR18ERTF2373 (discontinued at DiGi Electronics) and ERJ-8ENF2373V (not for new designs) for new product development. These parts remain available in inventory but lack active manufacturing support.

CR1206-FX-2373ELF and RC1206FR-07237KL provide moisture-resistant construction, suitable for applications with elevated humidity exposure or harsh environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can I substitute any of these parts directly into a circuit designed for RMCF1206FT237K?

A: Yes. All listed parts share identical electrical specifications (237 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C) and 1206 package dimensions. Physical height variations (0.024" to 0.030" maximum seated height) fall within standard 1206 package tolerances and do not affect PCB assembly or circuit function.

Q: Which substitute offers the best long-term availability?

A: CRCW1206237KFKEA (Vishay Dale) and KTR18EZPF2373 (Rohm) show the highest inventory levels (14448 and 14511 units respectively) and active product status, indicating sustained manufacturing support.

Q: Are moisture-resistant variants necessary for my application?

A: Moisture-resistant variants (CR1206-FX-2373ELF and RC1206FR-07237KL) provide enhanced protection in high-humidity environments or applications with extended storage in non-controlled conditions. Standard thick film resistors (RMCF1206FT237K, CRCW1206237KFKEA) are suitable for typical indoor electronics with MSL 1 rating.

Q: What is the difference between automotive AEC-Q200 and standard thick film resistors?

A: AEC-Q200 certified parts (RMCF1206FT237K, CRCW1206237KFKEA, ERJ-8ENF2373V, KTR18EZPF2373) meet automotive industry reliability and qualification standards. These are required for automotive applications. Non-automotive variants lack this certification but maintain identical electrical performance for general industrial and consumer electronics.

Q: Can I use ERJ-8ENF2373V or MCR18ERTF2373 in new designs?

A: ERJ-8ENF2373V carries "Not For New Designs" status and MCR18ERTF2373 is discontinued at DiGi Electronics. While electrically equivalent and currently in stock, these parts lack active manufacturing support. Use only for legacy product maintenance or when no alternative is available.

Q: Does KTR18EZPF2373 high voltage capability affect standard circuit operation?

A: No. High voltage capability is an additional feature that does not alter standard electrical performance. KTR18EZPF2373 operates identically to other 237 kOhms ±1% 0.25W resistors in standard applications and provides enhanced voltage handling for high-voltage circuit designs.

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