RP2012S-330-F Equivalent & Substitute Parts

Part Overview

The RP2012S-330-F is a 33 Ohm ±1% metal film chip resistor rated at 0.333W (1/3W) in 0805 (2012 Metric) surface mount package. This component is manufactured by Susumu and is classified as obsolete product status. The part is designed for precision current limiting and signal conditioning applications requiring tight tolerance specifications and stable temperature performance.

Due to obsolete product status, equivalent substitute parts with active availability are necessary to maintain design continuity and ensure supply chain reliability for new production runs and ongoing support.

Substiute Parts

RP2012S-330-F

SusumuIn Stock: 822RP2012S-330-F Datasheet

Current PartRFQ

RL1220S-330-F

SusumuIn Stock: 16424RL1220S-330-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RP2012S-330-F is based on electrical and mechanical parameter equivalence within the 0805 chip resistor category. The following parameters determine substitution validity:

Electrical Parameters:

• Resistance value: 33 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.333W / 1/3W (exact match required)
• Temperature coefficient: 0 / +200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)

Mechanical Parameters:

• Package / Case: 0805 (2012 Metric) (exact match required)
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm) (exact match required)
• Height - Seated (Max): 0.020" (0.50mm) (exact match required)
• Number of terminations: 2 (exact match required)

Compliance Parameters:

• RoHS3 Compliant (required)
• Moisture Sensitivity Level 1 (required)
• REACH Unaffected (required)

The RL1220S-330-F meets all electrical, mechanical, and compliance requirements for direct substitution. The primary difference is composition (thin film versus metal film) and active product status, which does not affect functional equivalence within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

The RL1220S-330-F is a direct functional equivalent to the RP2012S-330-F for applications requiring 33 Ohm ±1% precision resistors in 0805 surface mount package format. Selection of the RL1220S-330-F is supported by the following factors:

Product Status: The RL1220S-330-F maintains active product status with 16,361 pieces in current inventory, ensuring supply chain continuity compared to the obsolete RP2012S-330-F.

Electrical Equivalence: All critical electrical parameters are identical, including resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. These parameters determine functional performance in circuit applications.

Mechanical Compatibility: Physical dimensions, package type, and termination count are identical, enabling direct board-level substitution without PCB redesign or assembly process modification.

Compliance Certification: Both parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, satisfying regulatory and environmental requirements.

Composition Difference: The RL1220S-330-F uses thin film construction with current sense capability, compared to metal film construction in the main part. This composition difference does not affect electrical performance within the specified parameter tolerances and operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the RL1220S-330-F be used as a direct replacement for the RP2012S-330-F on existing PCBs?

A: Yes. The RL1220S-330-F is mechanically and electrically equivalent. Identical package type (0805), physical dimensions, and termination configuration enable direct board-level substitution without PCB modification.

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

A: Both compositions meet the specified electrical parameters (33 Ohms ±1%, 0.333W, 0 / +200ppm/°C temperature coefficient, -55°C ~ 125°C operating range). The thin film construction in the RL1220S-330-F includes current sense capability. Functional performance within the specified parameter set is equivalent.

Q: Are there packaging differences between these parts?

A: The RP2012S-330-F is supplied in bulk packaging, while the RL1220S-330-F is supplied in Tape & Reel (TR) format. Both formats contain identical components. Tape & Reel packaging is standard for automated assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RP2012S-330-F and RL1220S-330-F are ROHS3 compliant, REACH unaffected, and rated MSL 1 (unlimited moisture sensitivity level). Regulatory and environmental requirements are identical.

Q: Why is the RP2012S-330-F listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The RL1220S-330-F provides equivalent functionality with active availability and ongoing manufacturer support.

Q: Can the RL1220S-330-F be used in high-precision current sensing applications?

A: The RL1220S-330-F is specified with current sense capability. It meets the tolerance (±1%) and temperature coefficient (0 / +200ppm/°C) requirements for precision current measurement applications within the 33 Ohm, 0.333W parameter set.

Q: What is the inventory status of the RL1220S-330-F?

A: The RL1220S-330-F has 16,361 pieces in current stock, providing reliable supply availability for production requirements.