RC2012F5R1CS Equivalent & Substitute Parts Reference

Part Overview

The RC2012F5R1CS is a 5.1 Ohm ±1% 0.125W thick film chip resistor manufactured by Samsung Electro-Mechanics in 0805 (2012 Metric) package format. This component is classified as Active product status with moisture resistant characteristics and unlimited moisture sensitivity level (MSL 1). The part is ROHS3 compliant and REACH unaffected, suitable for general industrial and consumer applications requiring precision resistive elements in compact surface-mount form factors.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate specific application requirements such as automotive qualification or enhanced temperature coefficient performance.

Substiute Parts

RC2012F5R1CS

Samsung Electro-MechanicsIn Stock: 874RC2012F5R1CS Datasheet

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KTR10EZPF5R10

Rohm SemiconductorIn Stock: 12314KTR10EZPF5R10 Datasheet

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RMCF0805FT5R10

Stackpole Electronics IncIn Stock: 75655RMCF0805FT5R10 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC2012F5R1CS are qualified based on the following electrical and mechanical parameters:

Core Substitution Criteria:

• Resistance value: 5.1 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.125W / 1/8W (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Operating temperature range: -55°C ~ 155°C (minimum requirement)
• Termination count: 2 (exact match required)
• RoHS compliance: ROHS3 Compliant (minimum requirement)
• Moisture sensitivity: MSL 1 or better (minimum requirement)

Substitute Parts Identified:

1. KTR10EZPF5R10 (Rohm Semiconductor) – Automotive AEC-Q200 qualified variant with enhanced temperature coefficient (±100ppm/°C)
2. RMCF0805FT5R10 (Stackpole Electronics Inc) – Automotive AEC-Q200 qualified variant with standard temperature coefficient (±200ppm/°C)

Both substitute parts meet all core electrical and mechanical requirements and maintain full compatibility with the original RC2012F5R1CS specification envelope.

Parameter Comparison

Engineering Selection Recommendations

RC2012F5R1CS (Samsung Electro-Mechanics) – Primary Selection

Use the original RC2012F5R1CS for applications requiring moisture-resistant thick film construction with standard temperature coefficient performance. This part is suitable for general industrial and consumer electronics where automotive qualification is not required. Active product status ensures continued availability and manufacturing support.

KTR10EZPF5R10 (Rohm Semiconductor) – Enhanced Temperature Stability Selection

Select KTR10EZPF5R10 when automotive AEC-Q200 qualification is required and superior temperature coefficient performance (±100ppm/°C) is necessary for precision circuit applications. This substitute provides the tightest temperature coefficient specification among available options while maintaining full electrical and mechanical compatibility. Suitable for automotive and industrial applications demanding enhanced thermal stability.

RMCF0805FT5R10 (Stackpole Electronics Inc) – Automotive Qualified Selection

Select RMCF0805FT5R10 when automotive AEC-Q200 qualification is required with standard temperature coefficient performance (±200ppm/°C). This substitute offers the highest inventory availability (75,587 pieces in stock) and represents a cost-effective automotive-qualified alternative. Suitable for automotive and industrial applications where AEC-Q200 compliance is mandatory.

All three parts maintain identical electrical performance within specified tolerances, identical mechanical form factor, and equivalent environmental compliance ratings.

Frequently Asked Questions (FAQ)

Q: Can KTR10EZPF5R10 or RMCF0805FT5R10 be used as direct replacements for RC2012F5R1CS on existing PCBs?

A: Yes. Both substitute parts are mechanically and electrically identical to the RC2012F5R1CS. They share the same 0805 (2012 Metric) package dimensions (0.079" L x 0.049" W, 0.026" max height), identical resistance value (5.1 Ohms ±1%), identical power rating (0.125W), and identical termination configuration (2 terminations). No PCB layout modifications are required.

Q: What is the difference between the temperature coefficients of these three parts?

A: Temperature coefficient defines resistance change per degree Celsius across the operating temperature range. RC2012F5R1CS has ±300ppm/°C, KTR10EZPF5R10 has ±100ppm/°C (superior stability), and RMCF0805FT5R10 has ±200ppm/°C (intermediate stability). For precision analog circuits operating across wide temperature ranges, lower temperature coefficient values provide better resistance stability.

Q: Are the substitute parts suitable for automotive applications?

A: KTR10EZPF5R10 and RMCF0805FT5R10 are both AEC-Q200 qualified, making them suitable for automotive applications. The RC2012F5R1CS does not carry automotive qualification. If automotive compliance is required, select either KTR10EZPF5R10 or RMCF0805FT5R10.

Q: What does MSL 1 (Unlimited) moisture sensitivity level mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage, handling, or assembly. All three parts carry MSL 1 rating, eliminating moisture-related supply chain constraints.

Q: Which substitute part has the best inventory availability?

A: RMCF0805FT5R10 (Stackpole Electronics Inc) has the highest inventory with 75,587 pieces in stock, compared to KTR10EZPF5R10 with 12,278 pieces and RC2012F5R1CS with 861 pieces.

Q: Are all three parts ROHS3 compliant?

A: Yes. RC2012F5R1CS, KTR10EZPF5R10, and RMCF0805FT5R10 are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.