RC3216F4122CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F4122CS is a 41.2 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently in active production status with 723 pieces available in inventory.

Substitute parts are necessary when primary component availability is limited, supply chain disruptions occur, or design requirements mandate alternative qualified manufacturers. All substitute parts listed maintain electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

RC3216F4122CS

Samsung Electro-MechanicsIn Stock: 762RC3216F4122CS Datasheet

Current PartRFQ

CR1206-FX-4122ELF

Bourns Inc.In Stock: 25811CR1206-FX-4122ELF Datasheet

DirectRFQ

RC1206FR-0741K2L

YAGEOIn Stock: 101645RC1206FR-0741K2L Datasheet

DirectRFQ

CRCW120641K2FKEA

Vishay DaleIn Stock: 5241CRCW120641K2FKEA Datasheet

SimilarRFQ

ERJ-8ENF4122V

Panasonic Electronic ComponentsIn Stock: 47674ERJ-8ENF4122V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3216F4122CS is based on strict electrical and mechanical parameter matching:

Critical Matching Parameters:

• Resistance: 41.2 kOhms (exact value required)
• Tolerance: ±1% (no deviation permitted)
• Power Rating: 0.25W minimum (equal or higher acceptable)
• Package: 1206 (3216 Metric) form factor
• Composition: Thick Film technology

Secondary Compatibility Parameters:

• Temperature Coefficient: ±100ppm/°C (all substitutes match)
• Operating Temperature: -55°C to 155°C (all substitutes match)
• Moisture Resistance: Required feature (all substitutes include)
• RoHS Status: ROHS3 Compliant (all substitutes comply)
• MSL Rating: 1 (Unlimited) (all substitutes match)

All listed substitute parts meet these criteria. Substitutes are categorized as "Direct" (functionally identical, standard industrial use) or "Similar" (functionally identical with additional certifications such as automotive AEC-Q200 qualification).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Direct Substitutes):

CR1206-FX-4122ELF (Bourns Inc.) and RC1206FR-0741K2L (YAGEO) are direct functional equivalents with active product status. Both maintain identical electrical specifications and moisture-resistant thick film construction. YAGEO RC1206FR-0741K2L offers the highest inventory availability (101,585 pieces) and is recommended for high-volume applications requiring supply security.

Secondary Selection (Similar Substitutes with Automotive Qualification):

CRCW120641K2FKEA (Vishay Dale) includes AEC-Q200 automotive qualification while maintaining all standard electrical parameters. This part is suitable for applications requiring automotive-grade reliability certification. Inventory availability is 5,200 pieces.

Not Recommended for New Designs:

ERJ-8ENF4122V (Panasonic Electronic Components) carries "Not For New Designs" product status despite AEC-Q200 qualification and high inventory (47,611 pieces). This designation indicates the manufacturer is discontinuing the product line. Use only for legacy system maintenance or repair applications where no alternative exists.

Compliance Verification:

All recommended substitutes maintain ROHS3 compliance, REACH unaffected status, and MSL 1 (Unlimited) moisture sensitivity rating. All parts are classified under ECCN EAR99 and HTSUS 8533.21.0030.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC3216F4122CS with any 41.2 kOhm resistor in 1206 package?

A: No. The substitute must match all critical parameters: 41.2 kOhms resistance, ±1% tolerance, 0.25W power rating, thick film composition, and -55°C to 155°C operating range. Thin film or metal film resistors with different temperature coefficients are not acceptable substitutes.

Q: What is the difference between "Direct" and "Similar" substitute classifications?

A: Direct substitutes (CR1206-FX-4122ELF, RC1206FR-0741K2L) are functionally identical standard industrial components. Similar substitutes (CRCW120641K2FKEA, ERJ-8ENF4122V) include additional certifications such as AEC-Q200 automotive qualification, making them suitable for automotive applications but not required for general industrial use.

Q: Are the physical dimensions identical across all substitutes?

A: All substitutes use the 1206 (3216 Metric) package with length 0.126" (3.20mm) and width 0.063" (1.60mm). Height varies slightly: RC3216F4122CS 0.026" (0.66mm), CR1206-FX-4122ELF 0.030" (0.75mm), RC1206FR-0741K2L 0.026" (0.65mm), CRCW120641K2FKEA 0.024" (0.60mm), ERJ-8ENF4122V 0.028" (0.70mm). These variations are within standard PCB assembly tolerances and do not affect interchangeability.

Q: Why is ERJ-8ENF4122V marked "Not For New Designs"?

A: This designation indicates Panasonic has discontinued or is phasing out this product line. While the part remains available in inventory and functionally equivalent, it should not be specified for new product designs. Use only for maintenance, repair, or legacy system support.

Q: Which substitute offers the best supply chain security?

A: RC1206FR-0741K2L (YAGEO) with 101,585 pieces in inventory provides the highest availability. CR1206-FX-4122ELF (Bourns) with 25,773 pieces offers secondary supply security. Both are active products with no discontinuation notices.

Q: Can I use CRCW120641K2FKEA in non-automotive applications?

A: Yes. AEC-Q200 automotive qualification is a superset of standard industrial requirements. CRCW120641K2FKEA meets all specifications for general industrial use and is suitable for any application requiring the RC3216F4122CS.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronics manufacturing.