RC6432F3833CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F3833CS is a 383 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film resistor is designed for general-purpose applications requiring moisture resistance and operates across the temperature range of -55°C to 155°C. The component is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component requirements.

Key Parameters

Parameter	Value	Specification Type
Resistance Value	383 kOhms	Electrical
Tolerance	±1%	Electrical
Power Rating	1W	Electrical
Composition	Thick Film	Physical
Temperature Coefficient	±100ppm/°C	Electrical
Operating Temperature Range	-55°C to 155°C	Environmental
Package / Case	2512 (6432 Metric)	Mechanical
Size / Dimension	0.248" L x 0.126" W (6.30mm x 3.20mm)	Mechanical
RoHS Status	ROHS3 Compliant	Compliance
Moisture Sensitivity Level	1 (Unlimited)	Environmental

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F3833CS is determined by strict alignment of the following critical parameters:

Electrical Parameters (Must Match Exactly):

Resistance value: 383 kOhms
Tolerance: ±1%
Power rating: 1W
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C

Mechanical Parameters (Must Match):

Package format: 2512 (6432 Metric)
Composition: Thick Film
Termination count: 2

Compliance Parameters (Must Match or Exceed):

RoHS3 compliance
Moisture sensitivity level: 1 (Unlimited)

The CRCW2512383KFKEG manufactured by Vishay Dale meets all substitution criteria. Both components share identical electrical specifications, operate within the same temperature range, utilize thick film construction, and maintain equivalent mechanical dimensions within acceptable tolerances. Both components carry ROHS3 compliance and unlimited moisture sensitivity ratings.

Parameter Comparison

Parameter	RC6432F3833CS (Samsung)	CRCW2512383KFKEG (Vishay Dale)	Match Status
Resistance Value	383 kOhms	383 kOhms	Exact Match
Tolerance	±1%	±1%	Exact Match
Power Rating	1W	1W	Exact Match
Composition	Thick Film	Thick Film	Exact Match
Temperature Coefficient	±100ppm/°C	±100ppm/°C	Exact Match
Operating Temperature Range	-55°C to 155°C	-55°C to 155°C	Exact Match
Package / Case	2512 (6432 Metric)	2512 (6432 Metric)	Exact Match
Length	0.248" (6.30mm)	0.248" (6.30mm)	Exact Match
Width	0.126" (3.20mm)	0.124" (3.15mm)	Compatible
Height - Seated (Max)	0.026" (0.66mm)	0.028" (0.70mm)	Compatible
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Exact Match
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Exact Match
Product Status	Active	Active	Exact Match

Engineering Selection Recommendations

Both the RC6432F3833CS and CRCW2512383KFKEG are active production components with full ROHS3 compliance and unlimited moisture sensitivity ratings. Selection between these components should be based on:

Availability and Supply Chain: The CRCW2512383KFKEG (Vishay Dale) currently maintains higher inventory levels (2774 Pcs) compared to the RC6432F3833CS (1081 Pcs), which may influence procurement decisions for high-volume applications.

Packaging Format: The RC6432F3833CS is supplied in standard packaging, while the CRCW2512383KFKEG is available in Tape & Reel (TR) format, which is advantageous for automated assembly processes.

Automotive Qualification: The CRCW2512383KFKEG carries AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications where this certification is required.

Mechanical Tolerances: Dimensional variations between the two components are minimal and within acceptable PCB layout tolerances. The width difference of 0.002" (0.05mm) and height difference of 0.002" (0.04mm) do not impact functional performance or board-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CRCW2512383KFKEG directly replace the RC6432F3833CS in existing designs?

A: Yes. Both components share identical electrical specifications (383 kOhms ±1%, 1W, ±100ppm/°C), operate across the same temperature range (-55°C to 155°C), and utilize the 2512 (6432 Metric) package format. Mechanical dimensions are compatible within standard PCB layout tolerances.

Q: What is the significance of the AEC-Q200 rating on the CRCW2512383KFKEG?

A: AEC-Q200 is an automotive qualification standard. This certification is required only for applications in automotive or high-reliability environments. For general-purpose applications, this additional qualification does not provide functional advantage but confirms enhanced quality and reliability testing.

Q: Are there differences in moisture handling between these components?

A: Both components carry Moisture Sensitivity Level 1 (Unlimited), indicating they can be stored and handled without moisture bake-out requirements. No difference exists in moisture performance between the two parts.

Q: Does the Tape & Reel packaging of the CRCW2512383KFKEG affect compatibility?

A: Tape & Reel packaging is a supply format that facilitates automated assembly. It does not affect the component's electrical or mechanical performance. The actual component specifications remain identical to bulk packaging formats.

Q: What are the key parameters that must match for substitution?

A: Substitution requires exact matching of resistance value (383 kOhms), tolerance (±1%), power rating (1W), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), package format (2512), and composition (Thick Film). Compliance certifications must meet or exceed the original component requirements.

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