RMCS1206FT133K Equivalent & Substitute Parts

Part Overview

The RMCS1206FT133K is a 133 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 is designed for general-purpose applications requiring precision resistance values with tight tolerance specifications. The part is currently in active production status with 664 units available in inventory.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements necessitate alternative feature sets such as automotive qualification or enhanced moisture resistance.

Substiute Parts

RMCS1206FT133K

Stackpole Electronics IncIn Stock: 677RMCS1206FT133K Datasheet

Current PartRFQ

CR1206-FX-1333ELF

Bourns Inc.In Stock: 20014CR1206-FX-1333ELF Datasheet

MFR RecommendedRFQ

CRCW1206133KFKEA

Vishay DaleIn Stock: 15967CRCW1206133KFKEA Datasheet

MFR RecommendedRFQ

ERJ-8ENF1333V

Panasonic Electronic ComponentsIn Stock: 43099ERJ-8ENF1333V Datasheet

MFR RecommendedRFQ

RC1206FR-07133KL

YAGEOIn Stock: 50411RC1206FR-07133KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCS1206FT133K is determined by strict equivalence across the following parameters:

• Resistance value: 133 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W / 1/4W (exact match required)
• Package: 1206 (3216 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 four substitute parts meet these core electrical and mechanical requirements. Variations in physical dimensions (length, width, height) and feature enhancements (moisture resistance, automotive qualification) do not affect functional substitutability within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are electrically and mechanically equivalent to the RMCS1206FT133K and meet the core substitution criteria. Selection among alternatives should be based on the following factors:

CR1206-FX-1333ELF (Bourns Inc.) is recommended for applications requiring moisture-resistant thick film construction with active product status and high inventory availability (19960 units).

CRCW1206133KFKEA (Vishay Dale) is recommended for automotive applications requiring AEC-Q200 qualification with active product status and substantial inventory (15926 units).

ERJ-8ENF1333V (Panasonic Electronic Components) provides automotive AEC-Q200 qualification and the highest inventory availability (43011 units) but carries a "Not For New Designs" product status designation, limiting its suitability for new development programs.

RC1206FR-07133KL (YAGEO) is recommended for applications requiring moisture-resistant thick film construction with active product status and the highest inventory availability (50344 units). This part is supplied in Cut Tape (CT) & Digi-Reel® packaging rather than standard Tape & Reel format.

Frequently Asked Questions (FAQ)

Q: Can I substitute any of these parts for the RMCS1206FT133K without circuit redesign?

A: Yes. All four substitute parts meet identical electrical specifications (133 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C operating range) and are packaged in the same 1206 (3216 Metric) form factor. Direct substitution is possible without circuit modification.

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

A: Anti-sulfur construction (RMCS1206FT133K) protects against sulfur contamination in high-sulfur environments. Moisture-resistant construction (CR1206-FX-1333ELF, RC1206FR-07133KL) provides enhanced protection against moisture ingress. Both are thick film resistors with identical electrical performance.

Q: Are the automotive-qualified parts (CRCW1206133KFKEA, ERJ-8ENF1333V) suitable for non-automotive applications?

A: Yes. Automotive AEC-Q200 qualification represents an additional quality and reliability standard. These parts exceed the requirements of general-purpose applications and are fully compatible with non-automotive circuits.

Q: Why is ERJ-8ENF1333V marked "Not For New Designs"?

A: This product status indicates that while the part remains available in inventory, the manufacturer recommends using alternative parts for new design programs. Existing designs using this part may continue production, but new applications should select from parts with "Active" status.

Q: What is the significance of packaging type differences (Tape & Reel vs. Cut Tape)?

A: Tape & Reel (TR) packaging is optimized for automated assembly processes. Cut Tape (CT) & Digi-Reel® packaging (RC1206FR-07133KL) is suitable for both manual and automated assembly but may require different handling in high-volume production environments. Electrical and mechanical performance are identical.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed, including the primary RMCS1206FT133K, are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.