Equivalent & Substitute Parts for RMCS1206FT1R00

Part Overview

The RMCS1206FT1R00 is a 1 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This anti-sulfur resistor is designed for general-purpose applications requiring precision resistance in compact surface-mount form factors. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and package compatibility align with the main part's core parameters, enabling direct replacement in circuit designs.

Substiute Parts

RMCS1206FT1R00

Stackpole Electronics IncIn Stock: 701RMCS1206FT1R00 Datasheet

Current PartRFQ

RMCF1206FT1R00

Stackpole Electronics IncIn Stock: 456872RMCF1206FT1R00 Datasheet

MFR RecommendedRFQ

AF1206FR-071RL

YAGEOIn Stock: 5827AF1206FR-071RL Datasheet

UpgradeRFQ

AC1206FR-071RL

YAGEOIn Stock: 59639AC1206FR-071RL Datasheet

MFR RecommendedRFQ

CRCW12061R00FNEA

Vishay DaleIn Stock: 43160CRCW12061R00FNEA Datasheet

MFR RecommendedRFQ

RC1206FR-071RL

YAGEOIn Stock: 500462RC1206FR-071RL Datasheet

MFR RecommendedRFQ

RLP73K2B1R0FTDF

TE Connectivity Passive ProductIn Stock: 2408RLP73K2B1R0FTDF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of the following parameters:

• Resistance value: 1 Ohms
• Tolerance: ±1%
• Package / Case: 1206 (3216 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±200ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts are grouped into two categories based on power rating compatibility:

Category A: Direct Substitutes (0.25W / 1/4W Rating) Parts with identical power rating to the main part, differing only in manufacturer, series designation, or additional features (automotive qualification, moisture resistance).

Category B: Higher Power Rating (0.5W / 1/2W Rating) Parts with elevated power dissipation capability while maintaining all other electrical and mechanical specifications. These provide enhanced thermal performance for applications requiring additional margin.

Parameter Comparison

Engineering Selection Recommendations

Category A Direct Substitutes (0.25W Rating):

RMCF1206FT1R00 (Stackpole Electronics Inc) is manufacturer-recommended for applications requiring automotive-grade qualification. This part maintains identical electrical and mechanical specifications to the main part while adding AEC-Q200 certification.

AF1206FR-071RL (YAGEO) combines anti-sulfur protection with automotive AEC-Q200 qualification, providing enhanced environmental robustness for demanding applications.

AC1206FR-071RL (YAGEO) adds moisture-resistant characteristics alongside automotive AEC-Q200 certification, suitable for humidity-sensitive environments.

CRCW12061R00FNEA (Vishay Dale) provides automotive AEC-Q200 qualification with established supply chain availability.

RC1206FR-071RL (YAGEO) offers moisture-resistant thick film construction without automotive qualification, suitable for general industrial applications requiring environmental protection.

Category B Higher Power Rating (0.5W):

RLP73K2B1R0FTDF (TE Connectivity Passive Product) doubles the power dissipation capability to 0.5W while maintaining all other electrical parameters. This part is designated for current-sense applications and provides thermal margin for high-current circuit paths. Selection of this part requires verification that circuit board layout and thermal management accommodate the higher power rating.

Frequently Asked Questions (FAQ)

Q: Can I use a 0.5W rated resistor (RLP73K2B1R0FTDF) as a direct replacement for the 0.25W main part?

A: Yes, from an electrical and mechanical standpoint. The 0.5W part maintains identical resistance, tolerance, temperature coefficient, and package dimensions. However, verify that your circuit design does not depend on the specific thermal characteristics of the 0.25W part. Higher power rating components may exhibit different thermal behavior in the same footprint.

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

A: Anti-sulfur protection addresses corrosion from sulfur-containing environmental contaminants. Moisture-resistant construction protects against humidity ingress. These are distinct environmental protection mechanisms; a part may have one, both, or neither feature depending on application requirements.

Q: Are all substitute parts automotive-qualified?

A: No. Only RMCF1206FT1R00, AF1206FR-071RL, AC1206FR-071RL, and CRCW12061R00FNEA carry AEC-Q200 automotive qualification. RC1206FR-071RL and RLP73K2B1R0FTDF do not have automotive certification. Select automotive-qualified parts only for applications requiring this compliance.

Q: Do all substitute parts have the same physical dimensions?

A: All parts use the 1206 (3216 Metric) package. Minor dimensional variations exist within tolerance: length ranges from 0.122" to 0.126", width from 0.061" to 0.063", and height from 0.024" to 0.028". These variations remain within standard PCB footprint tolerances for 1206 components.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry this rating, eliminating moisture sensitivity as a selection constraint.

Q: Can I mix different manufacturers' parts in the same production run?

A: Yes, all substitute parts meet identical electrical specifications and package standards. However, verify with your quality and supply chain procedures regarding multi-source component usage in production assemblies.