RMCS0805FT3K83 Equivalent & Substitute Parts

Part Overview

The RMCS0805FT3K83 is a 3.83 kOhms ±1% 0.125W chip resistor in 0805 (2012 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor features anti-sulfur composition and is designed for general-purpose applications requiring precision resistance values. The part is currently active in production with 643 units in stock. Equivalent and substitute parts are identified when applications require alternative sourcing due to inventory constraints, supply chain considerations, or specific performance certifications such as automotive qualification.

Substiute Parts

RMCS0805FT3K83

Stackpole Electronics IncIn Stock: 730RMCS0805FT3K83 Datasheet

Current PartRFQ

RMCF0805FT3K83

Stackpole Electronics IncIn Stock: 38616RMCF0805FT3K83 Datasheet

MFR RecommendedRFQ

CRCW08053K83FKEA

Vishay DaleIn Stock: 31972CRCW08053K83FKEA Datasheet

MFR RecommendedRFQ

ERJ-6ENF3831V

Panasonic Electronic ComponentsIn Stock: 73773ERJ-6ENF3831V Datasheet

MFR RecommendedRFQ

RC0805FR-073K83L

YAGEOIn Stock: 34852RC0805FR-073K83L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS0805FT3K83 is determined by strict adherence to the following electrical and mechanical parameters:

• Resistance Value: 3.83 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 0.125W / 1/8W (exact match required)
• Package: 0805 (2012 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)
• RoHS Compliance: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All identified substitute parts meet these core electrical and mechanical specifications. Variations in physical dimensions (height, length, width) and additional certifications (such as AEC-Q200 automotive qualification) do not disqualify parts from substitution when the primary functional parameters are identical.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with ROHS3 compliance and identical core electrical specifications. Selection among these alternatives should be based on the following factors:

RMCF0805FT3K83 (Stackpole Electronics Inc): Manufacturer-recommended substitute from the same manufacturer. Features automotive AEC-Q200 qualification, providing enhanced reliability for automotive and harsh environment applications. Inventory availability is significantly higher at 38,559 units.

CRCW08053K83FKEA (Vishay Dale): Automotive AEC-Q200 qualified thick film resistor with the lowest seated height (0.020" / 0.50mm), suitable for space-constrained PCB layouts. Inventory availability is 31,959 units.

ERJ-6ENF3831V (Panasonic Electronic Components): Automotive AEC-Q200 qualified alternative with the highest seated height (0.028" / 0.70mm). Highest inventory availability at 73,697 units.

RC0805FR-073K83L (YAGEO): Moisture-resistant thick film resistor without automotive certification. Seated height matches the original part at 0.024" (0.60mm). Inventory availability is 34,758 units.

Frequently Asked Questions (FAQ)

Q: Can RMCF0805FT3K83 be used as a direct replacement for RMCS0805FT3K83?

A: Yes. Both parts share identical electrical specifications (3.83 kOhms, ±1%, 0.125W, ±100ppm/°C, -55°C ~ 155°C operating range) and package format (0805). The primary difference is the addition of automotive AEC-Q200 qualification in the RMCF variant, which does not prevent substitution in general-purpose applications.

Q: What is the significance of AEC-Q200 certification on substitute parts?

A: AEC-Q200 is an automotive qualification standard indicating enhanced reliability testing and performance validation for automotive environments. Parts with this certification (RMCF0805FT3K83, CRCW08053K83FKEA, ERJ-6ENF3831V) meet additional stress and reliability requirements. This certification does not restrict use in non-automotive applications.

Q: Are there physical dimension differences that affect PCB layout?

A: Yes. Seated height varies among substitutes: CRCW08053K83FKEA (0.020"), RMCS0805FT3K83 and RC0805FR-073K83L (0.024"), RMCF0805FT3K83 (0.026"), and ERJ-6ENF3831V (0.028"). For applications with tight vertical clearance constraints, CRCW08053K83FKEA offers the lowest profile. Length and width remain constant at 0.079" × 0.049" (2.00mm × 1.25mm) across all parts.

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

A: Anti-sulfur composition (RMCS0805FT3K83) provides protection against sulfur contamination in high-sulfur environments. Moisture-resistant features (RC0805FR-073K83L) provide protection against moisture ingress. Both are thick film resistors with identical electrical performance. Selection depends on environmental exposure conditions.

Q: Can these parts be used interchangeably in existing designs?

A: All listed parts are mechanically and electrically interchangeable for the 0805 package footprint. PCB layout considerations apply only to seated height variations. No design modifications are required for electrical substitution.