RP2012T-R22-F Equivalent & Substitute Parts

Part Overview

The RP2012T-R22-F is a 220 mOhms ±1% metal film chip resistor in 0805 (2012 Metric) package rated for 0.333W (1/3W) power dissipation. Manufactured by Susumu, this component is classified as obsolete product status. Due to its obsolete designation, sourcing equivalent or substitute parts from active product lines is necessary to ensure long-term component availability and supply chain continuity for new designs or production requirements.

Substiute Parts

RP2012T-R22-F

SusumuIn Stock: 980RP2012T-R22-F Datasheet

Current PartRFQ

RL1220S-R22-F

SusumuIn Stock: 5441RL1220S-R22-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RP2012T-R22-F is determined by strict equivalence across the following electrical and mechanical parameters:

• Resistance Value: 220 mOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 0.333W / 1/3W (exact match required)
• Package: 0805 (2012 Metric) (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected, MSL 1

The RL1220S-R22-F qualifies as a direct substitute based on these parameters. While the RL1220S-R22-F utilizes thin film composition with current sense features and improved temperature coefficient (0/+200ppm/°C versus 0/+350ppm/°C), it maintains full electrical and mechanical compatibility with the RP2012T-R22-F across all critical substitution criteria.

Parameter Comparison

Engineering Selection Recommendations

The RL1220S-R22-F is a direct functional equivalent to the RP2012T-R22-F for applications requiring 220 mOhms ±1% resistance in 0805 package format. Both components meet identical electrical specifications, dimensional requirements, and regulatory compliance standards (ROHS3, REACH Unaffected, MSL 1).

The RL1220S-R22-F offers the advantage of active product status, ensuring ongoing availability and supply chain support. The thin film composition with current sense designation and improved temperature coefficient (0/+200ppm/°C) provides enhanced performance characteristics compared to the metal film construction of the RP2012T-R22-F.

Both components are suitable for direct substitution in current sensing and precision resistor applications requiring low resistance values with tight tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can the RL1220S-R22-F replace the RP2012T-R22-F in existing designs?

A: Yes. The RL1220S-R22-F meets all electrical and mechanical specifications of the RP2012T-R22-F. Both components share identical resistance (220 mOhms), tolerance (±1%), power rating (0.333W), package (0805), operating temperature range (-55°C ~ 125°C), and regulatory compliance status.

Q: What is the difference between metal film and thin film composition?

A: The RP2012T-R22-F uses metal film construction, while the RL1220S-R22-F uses thin film construction. Both compositions achieve the required ±1% tolerance and 0.333W power rating. The RL1220S-R22-F thin film design includes current sense features and exhibits a lower temperature coefficient (0/+200ppm/°C versus 0/+350ppm/°C).

Q: Are the physical dimensions identical?

A: Yes. Both components are packaged in 0805 (2012 Metric) format with identical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.020" (0.50mm). They are mechanically interchangeable on PCB layouts.

Q: What is the significance of the RL1220S-R22-F active product status?

A: Active product status indicates ongoing manufacturing and availability. The RP2012T-R22-F is classified as obsolete, making the RL1220S-R22-F the recommended choice for new designs and long-term production requirements.

Q: Are both components RoHS compliant?

A: Yes. Both the RP2012T-R22-F and RL1220S-R22-F are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating and REACH Unaffected status.

Q: What applications are these resistors suitable for?

A: These 220 mOhms ±1% resistors are designed for current sensing and precision measurement applications requiring low resistance values with tight tolerance specifications in compact 0805 package form factor.