RC6432F1783CS 178 kOhm 1% 1W Chip Resistor 2512 Equivalent & Substitute Parts

Part Overview

The RC6432F1783CS is a 178 kOhm ±1% 1W thick film chip resistor in 2512 (6432 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with moisture resistant characteristics suitable for general industrial applications. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across different manufacturers while preserving the same functional performance in circuit designs.

Substiute Parts

RC6432F1783CS

Samsung Electro-MechanicsIn Stock: 887RC6432F1783CS Datasheet

Current PartRFQ

AC2512FK-07178KL

YAGEOIn Stock: 4771AC2512FK-07178KL Datasheet

UpgradeRFQ

CRCW2512178KFKEG

Vishay DaleIn Stock: 2756CRCW2512178KFKEG Datasheet

SimilarRFQ

ERJ-1TNF1783U

Panasonic Electronic ComponentsIn Stock: 1145ERJ-1TNF1783U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC6432F1783CS is determined by strict equivalence of the following parameters:

Critical Electrical Parameters:

• Resistance value: 178 kOhms
• Tolerance: ±1%
• Power rating: 1W
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Critical Mechanical Parameters:

• Package type: 2512 (6432 Metric)
• Composition: Thick Film
• Number of terminations: 2
• Moisture Sensitivity Level: 1 (Unlimited)

Compliance Parameters:

• RoHS3 Compliant status
• REACH Unaffected status

All identified substitute parts maintain these exact specifications. Variations in physical dimensions (length, width, height) within standard manufacturing tolerances do not affect functional substitution. Packaging format differences (Tape & Reel versus standard packaging) represent logistical variations only and do not impact electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status):

AC2512FK-07178KL (YAGEO) and CRCW2512178KFKEG (Vishay Dale) are both Active product status components with full electrical and mechanical equivalence to the RC6432F1783CS. Both parts carry AEC-Q200 automotive qualification in addition to the base specifications. Selection between these two parts is determined by supply chain availability and packaging requirements (Tape & Reel format).

Secondary Selection (Legacy Status):

ERJ-1TNF1783U (Panasonic Electronic Components) maintains complete electrical and mechanical equivalence but carries "Not For New Designs" product status. This part is suitable for replacement applications, field service, and legacy system maintenance only. New circuit designs should not incorporate this part number.

Compliance Basis:

All four parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for industrial and commercial applications. The RC6432F1783CS provides moisture resistant features; substitute parts AC2512FK-07178KL and CRCW2512178KFKEG explicitly include moisture resistant specifications, while ERJ-1TNF1783U does not document this feature in the provided data.

Frequently Asked Questions (FAQ)

Q: Can AC2512FK-07178KL replace RC6432F1783CS in existing designs?

A: Yes. AC2512FK-07178KL maintains identical electrical specifications (178 kOhms ±1%, 1W, ±100ppm/°C, -55°C ~ 155°C) and mechanical compatibility (2512 package, 2 terminations, MSL 1). Physical dimensions vary within standard manufacturing tolerances and do not affect circuit performance or PCB layout compatibility.

Q: What is the difference between the substitute parts?

A: All substitute parts share identical electrical and mechanical specifications. Differences exist only in: (1) Manufacturer identity, (2) Product status (AC2512FK-07178KL and CRCW2512178KFKEG are Active; ERJ-1TNF1783U is Not For New Designs), (3) Packaging format (some supplied in Tape & Reel), and (4) Physical dimension tolerances within standard ranges.

Q: Is ERJ-1TNF1783U suitable for new product designs?

A: No. ERJ-1TNF1783U carries "Not For New Designs" status and should be used only for replacement, repair, and legacy system applications. New designs must use AC2512FK-07178KL or CRCW2512178KFKEG.

Q: Do physical dimension variations affect PCB layout?

A: No. All parts use the 2512 (6432 Metric) package standard. Dimension variations (length 0.248" to 0.252", width 0.122" to 0.126", height 0.026" to 0.028") fall within standard manufacturing tolerances and do not require PCB footprint redesign.

Q: Are all substitute parts automotive qualified?

A: AC2512FK-07178KL and CRCW2512178KFKEG carry AEC-Q200 automotive qualification. RC6432F1783CS and ERJ-1TNF1783U do not document automotive qualification in the provided specifications.

Q: What is the moisture sensitivity difference?

A: All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Handling and storage requirements are identical across all parts.