RMCS1206FT825R Equivalent & Substitute Parts

Part Overview

The RMCS1206FT825R is a 825 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur variant is currently active in production with 820 pieces in stock. Substitute parts become necessary when the original part experiences supply constraints, extended lead times, or when design requirements call for alternative certifications such as automotive AEC-Q200 qualification or enhanced moisture resistance features.

Key Parameters

Parameter	Value
Resistance	825 Ohms
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
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT825R is determined by strict equivalence across the following parameters:

Resistance value: 825 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Termination count: 2
RoHS3 compliance
MSL rating: 1 (Unlimited)

All listed substitute parts meet these core electrical and mechanical parameters. Variations in physical dimensions (length, width, height) and additional certifications (such as AEC-Q200 automotive qualification or moisture resistance features) do not disqualify substitution but represent available options for specific application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Operating Temp (°C)	Features	Product Status	Inventory (Pcs)
RMCS1206FT825R	Stackpole Electronics Inc	825 Ω	±1%	0.25	1206	±100	-55 ~ 155	Anti-Sulfur	Active	820
RMCF1206FT825R	Stackpole Electronics Inc	825 Ω	±1%	0.25	1206	±100	-55 ~ 155	Automotive AEC-Q200	Active	27195
AC1206FR-07825RL	YAGEO	825 Ω	±1%	0.25	1206	±100	-55 ~ 155	Automotive AEC-Q200, Moisture Resistant	Active	8251
CR1206-FX-8250ELF	Bourns Inc.	825 Ω	±1%	0.25	1206	±100	-55 ~ 155	Moisture Resistant	Active	13098
CRCW1206825RFKEA	Vishay Dale	825 Ω	±1%	0.25	1206	±100	-55 ~ 155	Automotive AEC-Q200	Active	16608
ERJ-8ENF8250V	Panasonic Electronic Components	825 Ω	±1%	0.25	1206	±100	-55 ~ 155	Automotive AEC-Q200	Not For New Designs	9778
RC1206FR-07825RL	YAGEO	825 Ω	±1%	0.25	1206	±100	-55 ~ 155	Moisture Resistant	Active	177594

Engineering Selection Recommendations

For direct replacement in existing designs, RMCF1206FT825R (Stackpole Electronics Inc) is the primary recommendation as it maintains the same manufacturer lineage with enhanced automotive AEC-Q200 qualification and significantly higher inventory availability (27,195 pieces).

For applications requiring automotive qualification, AC1206FR-07825RL (YAGEO) and CRCW1206825RFKEA (Vishay Dale) both provide AEC-Q200 certification with active product status. AC1206FR-07825RL adds moisture resistance capability, while CRCW1206825RFKEA offers the lowest seated height (0.024 inches).

For non-automotive applications prioritizing moisture resistance and maximum inventory, RC1206FR-07825RL (YAGEO) provides 177,594 pieces in stock with active product status.

ERJ-8ENF8250V (Panasonic Electronic Components) carries "Not For New Designs" status and should be avoided for new development projects despite adequate inventory levels.

Frequently Asked Questions (FAQ)

Q: Can RMCF1206FT825R replace RMCS1206FT825R in existing assemblies?

A: Yes. Both parts share identical electrical specifications (825 Ω ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C operating range) and 1206 package footprint. RMCF1206FT825R adds automotive AEC-Q200 qualification without compromising compatibility.

Q: What is the difference between anti-sulfur and moisture-resistant variants?

A: Anti-sulfur protection (RMCS1206FT825R) addresses sulfur contamination in specific environments. Moisture-resistant variants (AC1206FR-07825RL, CR1206-FX-8250ELF, RC1206FR-07825RL) provide enhanced protection against humidity exposure. Both meet MSL 1 (Unlimited) moisture sensitivity requirements.

Q: Are all substitute parts suitable for automotive applications?

A: No. Only RMCF1206FT825R, AC1206FR-07825RL, CRCW1206825RFKEA, and ERJ-8ENF8250V carry AEC-Q200 automotive qualification. CR1206-FX-8250ELF and RC1206FR-07825RL lack this certification.

Q: What is the significance of "Not For New Designs" status?

A: ERJ-8ENF8250V is in mature/end-of-life phase. While currently available, Panasonic does not recommend this part for new product development. Existing designs may continue using available inventory, but new designs should select from active-status alternatives.

Q: Do physical dimension variations affect PCB layout compatibility?

A: All parts use the 1206 (3216 Metric) package with identical footprint dimensions. Seated height variations (0.024" to 0.030") are within standard PCB assembly tolerances and do not require layout modifications.

Q: Which substitute offers the best inventory availability?

A: RC1206FR-07825RL (YAGEO) provides maximum availability with 177,594 pieces in stock, followed by RMCF1206FT825R with 27,195 pieces.

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