RP2012T-R68-F Equivalent & Substitute Parts

Part Overview

The RP2012T-R68-F is a 680 mOhms ±1% metal film chip resistor rated at 0.333W (1/3W) in 0805 (2012 Metric) package format manufactured by Susumu. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure procurement availability for applications requiring this resistance value and power rating specification.

Substiute Parts

RP2012T-R68-F

SusumuIn Stock: 959RP2012T-R68-F Datasheet

Current PartRFQ

RL1220S-R68-F

SusumuIn Stock: 64906RL1220S-R68-F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RP2012T-R68-F is determined by strict equivalence across the following parameters:

• Resistance Value: 680 mOhms exact match required
• Tolerance: ±1% specification maintained
• Power Rating: 0.333W (1/3W) minimum requirement
• Package Format: 0805 (2012 Metric) physical compatibility
• Operating Temperature Range: -55°C ~ 125°C minimum coverage
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected status

The substitute part RL1220S-R68-F meets all mandatory electrical and mechanical parameters. Composition differs between metal film (RP2012T) and thin film (RL1220S), with the thin film variant offering improved temperature coefficient performance. Both parts maintain identical package dimensions, termination count, and regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

The RL1220S-R68-F serves as the direct substitute for the obsolete RP2012T-R68-F. Both components are manufactured by Susumu and maintain identical electrical specifications for resistance, tolerance, and power rating. The substitute part is currently in active production status with significantly higher inventory availability (64,890 pieces versus 869 pieces).

The RL1220S-R68-F employs thin film composition technology compared to the metal film construction of the RP2012T-R68-F. This composition difference results in a superior temperature coefficient of 0 / +200ppm/°C versus 0 / +350ppm/°C, providing enhanced stability across the full operating temperature range of -55°C to 125°C.

Both parts maintain identical physical dimensions, package format (0805 / 2012 Metric), and regulatory compliance certifications (ROHS3 Compliant, REACH Unaffected). Moisture sensitivity level remains at MSL 1 (Unlimited) for both variants, indicating no special handling requirements during storage or assembly.

Frequently Asked Questions (FAQ)

Q: Can RL1220S-R68-F directly replace RP2012T-R68-F in existing designs?

A: Yes. Both components share identical resistance value (680 mOhms), tolerance (±1%), power rating (0.333W), package format (0805), and operating temperature range (-55°C ~ 125°C). Physical dimensions and termination configuration are identical, enabling direct substitution without PCB layout modifications.

Q: What is the primary difference between these two parts?

A: The RP2012T-R68-F uses metal film composition while the RL1220S-R68-F uses thin film composition. The thin film variant provides improved temperature coefficient performance (0 / +200ppm/°C versus 0 / +350ppm/°C), resulting in better resistance stability across temperature variations.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the RP2012T-R68-F and RL1220S-R68-F are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards for electronic component manufacturing and use.

Q: What is the packaging difference between these parts?

A: The RP2012T-R68-F is supplied in standard packaging format, while the RL1220S-R68-F is supplied in Tape & Reel (TR) format. Both maintain identical component dimensions and electrical specifications. Tape & Reel packaging is standard for high-volume production environments.

Q: Why is the RP2012T-R68-F classified as obsolete?

A: The RP2012T-R68-F has reached end-of-life status in Susumu's product portfolio. The RL1220S-R68-F represents the active production equivalent, offering improved performance characteristics and continued manufacturing support.

Q: Are there any thermal or electrical performance differences in circuit operation?

A: Both parts operate identically within the specified -55°C ~ 125°C temperature range at 0.333W power rating. The improved temperature coefficient of the RL1220S-R68-F provides marginally better resistance stability under temperature cycling, though both meet the ±1% tolerance specification across the full operating range.

Q: What is the moisture sensitivity classification for these resistors?

A: Both components are classified as MSL 1 (Unlimited), indicating no moisture sensitivity concerns. These parts require no special desiccant packaging or moisture bake-out procedures prior to assembly.