RMCS1206FT316K Equivalent & Substitute Parts

Part Overview

The RMCS1206FT316K is a 316 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor features anti-sulfur construction and operates across -55°C to 155°C. The part is currently active in production. Equivalent and substitute parts are necessary to address supply chain flexibility, design optimization for specific environmental requirements, and compliance with automotive or high-voltage applications.

Key Parameters

Parameter	Value
Resistance	316 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
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT316K is determined by strict equivalence across the following parameters:

Resistance value: 316 kOhms
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 substitute parts listed meet these core electrical and mechanical requirements. Variations in physical dimensions (length, width, height) within standard 1206 tolerances and differences in secondary features (anti-sulfur vs. moisture resistant vs. automotive AEC-Q200 qualification) do not affect functional substitutability for standard applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Features	Product Status	RoHS3
RMCS1206FT316K	Stackpole Electronics Inc	316 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Anti-Sulfur	Active	Yes
CR1206-FX-3163ELF	Bourns Inc.	316 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	Yes
CRCW1206316KFKEA	Vishay Dale	316 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	Yes
ERJ-8ENF3163V	Panasonic Electronic Components	316 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Not For New Designs	Yes
KTR18EZPF3163	Rohm Semiconductor	316 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, High Voltage	Active	Yes
RC1206FR-07316KL	YAGEO	316 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	Yes

Engineering Selection Recommendations

All substitute parts are electrically and mechanically equivalent to the RMCS1206FT316K for standard applications. Selection among these alternatives should be based on the following criteria:

For Active Production Designs: CR1206-FX-3163ELF (Bourns), CRCW1206316KFKEA (Vishay Dale), KTR18EZPF3163 (Rohm), and RC1206FR-07316KL (YAGEO) are all active products and suitable for new designs.

For Automotive Applications: CRCW1206316KFKEA (Vishay Dale), ERJ-8ENF3163V (Panasonic), and KTR18EZPF3163 (Rohm) carry AEC-Q200 automotive qualification. KTR18EZPF3163 additionally provides high-voltage capability.

For High-Voltage Applications: KTR18EZPF3163 (Rohm) is specified with high-voltage features.

For Moisture-Sensitive Environments: CR1206-FX-3163ELF (Bourns) and RC1206FR-07316KL (YAGEO) are rated as moisture resistant.

Legacy Designs: ERJ-8ENF3163V (Panasonic) is marked "Not For New Designs" and should be replaced in new production with an active alternative.

Frequently Asked Questions (FAQ)

Q: Can I substitute any of these parts for the RMCS1206FT316K without circuit redesign?

A: Yes. All listed substitute parts meet the core electrical specifications (316 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C) and are packaged in 1206 (3216 Metric) with identical termination configuration. No circuit redesign is required for functional substitution.

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

A: Anti-sulfur construction (RMCS1206FT316K) protects against sulfur-containing atmospheric corrosion. Moisture-resistant construction (CR1206-FX-3163ELF, RC1206FR-07316KL) provides protection against moisture ingress. Both are valid for general industrial applications; selection depends on the specific environmental exposure of the end application.

Q: Are the physical dimensions identical across all parts?

A: Physical dimensions vary slightly within standard 1206 tolerances. Length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), width from 0.061" to 0.063" (1.55mm to 1.60mm), and height from 0.024" to 0.030" (0.60mm to 0.75mm). These variations are within standard PCB footprint tolerances and do not affect interchangeability.

Q: Should I use the automotive AEC-Q200 qualified parts for non-automotive applications?

A: Automotive AEC-Q200 qualified parts (CRCW1206316KFKEA, ERJ-8ENF3163V, KTR18EZPF3163) meet stringent reliability and qualification standards and are suitable for any application. Their use in non-automotive designs provides additional assurance of quality and reliability.

Q: Why is ERJ-8ENF3163V marked "Not For New Designs"?

A: This designation indicates that Panasonic has discontinued active development and promotion of this part number. While functionally equivalent and currently in stock, it should not be selected for new product designs. Use CR1206-FX-3163ELF, CRCW1206316KFKEA, KTR18EZPF3163, or RC1206FR-07316KL instead.

Q: Are all parts REACH compliant?

A: Yes. All listed parts are REACH Unaffected, indicating compliance with REACH regulations.

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