RC6432F181CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F181CS is a 180 Ohms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant. The part is currently Active in product status with 668 pieces in stock. Equivalent and substitute parts are identified when manufacturers discontinue production, when supply constraints occur, or when design requirements necessitate alternative qualified sources meeting identical electrical and mechanical specifications.

Substiute Parts

RC6432F181CS

Samsung Electro-MechanicsIn Stock: 700RC6432F181CS Datasheet

Current PartRFQ

RC2512FK-07180RL

YAGEOIn Stock: 14561RC2512FK-07180RL Datasheet

DirectRFQ

AC2512FK-07180RL

YAGEOIn Stock: 1998AC2512FK-07180RL Datasheet

UpgradeRFQ

CRCW2512180RFKEG

Vishay DaleIn Stock: 1941CRCW2512180RFKEG Datasheet

SimilarRFQ

ERJ-1TNF1800U

Panasonic Electronic ComponentsIn Stock: 5118ERJ-1TNF1800U Datasheet

SimilarRFQ

RMCF2512FT180R

Stackpole Electronics IncIn Stock: 37009RMCF2512FT180R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432F181CS are qualified based on strict electrical and mechanical parameter matching. All identified substitutes maintain the following critical specifications:

Electrical Parameters (Must Match):

• Resistance value: 180 Ohms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Must Match):

• Package type: 2512 (6432 Metric)
• Number of terminations: 2
• Composition: Thick Film
• Moisture resistance: Required

Compliance Parameters (Must Match):

• RoHS3 compliance
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status

Substitutes are categorized as Direct (functionally identical, different manufacturer), Upgrade (adds automotive AEC-Q200 qualification), or Similar (meets all core parameters with minor dimensional variations within tolerance).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Preferred for Standard Applications): RC2512FK-07180RL (YAGEO) is the direct functional equivalent to RC6432F181CS. Both parts are Active in product status, share identical electrical specifications, and maintain ROHS3 compliance. This substitute is suitable for applications where automotive qualification is not required. Inventory availability is significantly higher (14,518 pieces).

Upgrade Option (Automotive Applications): AC2512FK-07180RL (YAGEO), CRCW2512180RFKEG (Vishay Dale), and RMCF2512FT180R (Stackpole Electronics Inc) are Active products that add AEC-Q200 automotive qualification while maintaining all core electrical and mechanical parameters. These upgrades are appropriate for designs requiring automotive-grade reliability. RMCF2512FT180R offers the highest inventory level (36,958 pieces) among qualified alternatives.

Legacy Status (Not Recommended for New Designs): ERJ-1TNF1800U (Panasonic Electronic Components) meets all electrical and mechanical specifications and includes AEC-Q200 qualification. However, this part carries "Not For New Designs" product status and should not be selected for new development programs.

Dimensional Compatibility: All substitute parts fit the 2512 package envelope. Height variations (0.65mm to 0.70mm maximum seated height) are within standard PCB assembly tolerances and do not affect circuit performance or board layout.

Frequently Asked Questions (FAQ)

Q: Can RC2512FK-07180RL replace RC6432F181CS in existing designs? A: Yes. RC2512FK-07180RL is a direct equivalent meeting all electrical specifications (180 Ω ±1%, 1W, ±100ppm/°C, -55°C to 155°C), mechanical package (2512), and compliance requirements (ROHS3, MSL 1). No circuit redesign is required.

Q: What is the difference between RC2512FK-07180RL and AC2512FK-07180RL? A: Both are YAGEO products with identical electrical and mechanical specifications. AC2512FK-07180RL adds AEC-Q200 automotive qualification, making it suitable for automotive applications. RC2512FK-07180RL is the standard industrial version. Select AC2512FK-07180RL if automotive reliability requirements apply.

Q: Why is ERJ-1TNF1800U marked "Not For New Designs"? A: This designation indicates the manufacturer (Panasonic) has discontinued active development and support for this product line. While the part meets all technical specifications, it should not be selected for new product development. Use RMCF2512FT180R, AC2512FK-07180RL, or CRCW2512180RFKEG instead.

Q: Are there height differences between substitutes that affect PCB assembly? A: Seated height varies from 0.65mm to 0.70mm across substitutes. These variations are within standard SMD assembly tolerances and do not affect reflow soldering, component placement, or circuit performance. PCB design accommodates standard 2512 package height specifications.

Q: Which substitute offers the best supply availability? A: RMCF2512FT180R (Stackpole Electronics Inc) has the highest inventory at 36,958 pieces. This part is Active in product status and includes AEC-Q200 qualification, making it suitable for both standard and automotive applications.

Q: Do all substitutes maintain moisture resistance? A: Yes. All identified substitutes are thick film resistors with moisture-resistant construction and Moisture Sensitivity Level 1 (Unlimited), matching the original RC6432F181CS specification.

Q: Can I use an AEC-Q200 qualified part in a non-automotive application? A: Yes. AEC-Q200 qualification represents an enhanced reliability standard that exceeds standard industrial requirements. Using an AEC-Q200 part (AC2512FK-07180RL, CRCW2512180RFKEG, or RMCF2512FT180R) in non-automotive applications provides additional margin without penalty.