RR1220P-3243-D-M Equivalent & Substitute Parts

Part Overview

The RR1220P-3243-D-M is a 324 kOhms ±0.5% thin film chip resistor manufactured by Susumu in the 0805 (2012 Metric) package format. This component is rated for 0.1W (1/10W) power dissipation and operates across a temperature range of -55°C to 125°C. The part is currently in active production status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent resistance values, package formats, and electrical ratings are available from alternative manufacturers. Substitution becomes necessary due to inventory availability, supply chain optimization, or specific application requirements such as enhanced tolerance specifications or automotive-grade certifications.

Substiute Parts

RR1220P-3243-D-M

SusumuIn Stock: 915RR1220P-3243-D-M Datasheet

Current PartRFQ

ERA-6AEB3243V

Panasonic Electronic ComponentsIn Stock: 20875ERA-6AEB3243V Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RR1220P-3243-D-M is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 324 kOhms
• Package format: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature coefficient: ±25ppm/°C
• Number of terminations: 2
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Allowable Variations:

• Tolerance: May be equal to or tighter (lower) than ±0.5%
• Power rating: May be equal to or greater than 0.1W
• Operating temperature maximum: May be equal to or higher than 125°C
• Operating temperature minimum: May be equal to or lower than -55°C

The ERA-6AEB3243V from Panasonic Electronic Components qualifies as a direct substitute based on these criteria. It maintains identical resistance, package, composition, and temperature coefficient specifications while offering improved tolerance (±0.1% versus ±0.5%) and higher power rating (0.125W versus 0.1W).

Parameter Comparison

Engineering Selection Recommendations

The ERA-6AEB3243V represents a functionally compatible substitute for the RR1220P-3243-D-M. Both components maintain active production status and full ROHS3 compliance.

The ERA-6AEB3243V offers enhanced specifications in two areas:

1. Tolerance Specification: The ±0.1% tolerance of the ERA-6AEB3243V is tighter than the ±0.5% tolerance of the RR1220P-3243-D-M. This provides improved accuracy for precision circuit applications.

2. Power Dissipation: The ERA-6AEB3243V is rated for 0.125W compared to 0.1W for the RR1220P-3243-D-M, allowing operation in applications with higher power requirements.

3. Temperature Range: The ERA-6AEB3243V extends the maximum operating temperature to 155°C versus 125°C for the RR1220P-3243-D-M.

4. Automotive Certification: The ERA-6AEB3243V carries AEC-Q200 automotive qualification, suitable for automotive and high-reliability applications.

The ERA-6AEB3243V is suitable for direct replacement in applications where the RR1220P-3243-D-M is currently specified, provided that the 0.024" (0.60mm) maximum seated height is compatible with the PCB assembly process and design constraints.

Frequently Asked Questions (FAQ)

Q: Can the ERA-6AEB3243V replace the RR1220P-3243-D-M in all applications?

A: The ERA-6AEB3243V is electrically and mechanically compatible with the RR1220P-3243-D-M for direct substitution. The primary consideration is the seated height difference: 0.024" (0.60mm) for the ERA-6AEB3243V versus 0.020" (0.50mm) for the RR1220P-3243-D-M. Verify that this height variation is acceptable for your PCB assembly process and design layout.

Q: What is the significance of the ±0.1% tolerance on the ERA-6AEB3243V compared to the ±0.5% tolerance on the RR1220P-3243-D-M?

A: The ±0.1% tolerance specification on the ERA-6AEB3243V provides tighter resistance accuracy. For a 324 kOhms resistor, this represents a tolerance band of ±324 Ohms compared to ±1,620 Ohms for the ±0.5% specification. Applications requiring precise resistance values benefit from this tighter tolerance.

Q: Are both parts suitable for high-temperature applications?

A: The RR1220P-3243-D-M operates to 125°C maximum, while the ERA-6AEB3243V operates to 155°C maximum. For applications requiring operation above 125°C, the ERA-6AEB3243V is the appropriate selection.

Q: What does AEC-Q200 certification on the ERA-6AEB3243V indicate?

A: AEC-Q200 is an automotive industry standard qualification for passive components. The ERA-6AEB3243V meets this specification, making it suitable for automotive applications and other high-reliability environments where component qualification is required.

Q: Are the package dimensions identical between these two parts?

A: Both parts use the 0805 (2012 Metric) package with identical length and width dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm). The seated height differs slightly: 0.020" (0.50mm) for the RR1220P-3243-D-M and 0.024" (0.60mm) for the ERA-6AEB3243V. This height difference is within typical PCB assembly tolerances but should be verified for space-constrained designs.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes, both the RR1220P-3243-D-M and ERA-6AEB3243V carry MSL 1 (Unlimited) moisture sensitivity level, indicating no moisture sensitivity restrictions for storage or handling.

Q: Are both parts RoHS compliant?

A: Yes, both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.