RT0603FRE079K31L Equivalent & Substitute Parts

Part Overview

The RT0603FRE079K31L is a 9.31 kOhms ±1% thin film chip resistor in 0603 (1608 Metric) package manufactured by YAGEO. This surface-mount device is rated for 0.1W (1/10W) power dissipation with operating temperature range of -55°C to 155°C. The part is ROHS3 compliant and carries MSL Level 1 (Unlimited) moisture sensitivity rating. As an active product with 672 units in stock, equivalent and substitute parts are available for applications requiring improved tolerance specifications, enhanced automotive qualification, or alternative sourcing.

Substiute Parts

RT0603FRE079K31L

YAGEOIn Stock: 766RT0603FRE079K31L Datasheet

Current PartRFQ

RT0603BRD079K31L

YAGEOIn Stock: 1440RT0603BRD079K31L Datasheet

UpgradeRFQ

RT0603DRE079K31L

YAGEOIn Stock: 2463RT0603DRE079K31L Datasheet

UpgradeRFQ

9-2176088-7

TE Connectivity Passive ProductIn Stock: 20339-2176088-7 Datasheet

DirectRFQ

ERA-3AEB9311V

Panasonic Electronic ComponentsIn Stock: 78839ERA-3AEB9311V Datasheet

UpgradeRFQ

RG1608P-9311-B-T5

SusumuIn Stock: 10118RG1608P-9311-B-T5 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT0603FRE079K31L is determined by the following critical parameters:

• Resistance Value: Must be 9.31 kOhms (exact match required)
• Package Type: Must be 0603 (1608 Metric) for PCB footprint compatibility
• Composition: Thin film construction maintains electrical performance characteristics
• Operating Temperature Range: Must support -55°C to 155°C minimum
• RoHS Compliance: ROHS3 compliance required for regulatory alignment

Substitute parts are grouped into two categories:

Upgrade Substitutes (Improved Tolerance): RT0603BRD079K31L, RT0603DRE079K31L, ERA-3AEB9311V, and RG1608P-9311-B-T5 offer tighter tolerance specifications (±0.1% or ±0.5%) compared to the original ±1%, with maintained or improved temperature coefficients.

Direct Equivalent: 9-2176088-7 (TE Connectivity) provides equivalent electrical performance with identical tolerance and temperature coefficient, with higher power rating (1/6W vs 1/10W).

Parameter Comparison

Engineering Selection Recommendations

For Standard Applications: RT0603DRE079K31L (YAGEO) provides a mid-tolerance option (±0.5%) with maintained temperature coefficient performance and highest inventory availability (2366 units), suitable for general-purpose circuit applications.

For Precision Applications: RT0603BRD079K31L (YAGEO), ERA-3AEB9311V (Panasonic), or RG1608P-9311-B-T5 (Susumu) offer ±0.1% tolerance with improved ±25ppm/°C temperature coefficient. ERA-3AEB9311V provides the largest inventory (78783 units) and carries AEC-Q200 automotive qualification. RG1608P-9311-B-T5 adds anti-sulfur protection with AEC-Q200 rating.

For Higher Power Dissipation: 9-2176088-7 (TE Connectivity) delivers 0.167W (1/6W) power rating with ±0.1% tolerance and ±25ppm/°C temperature coefficient, suitable for applications requiring increased thermal headroom within the 0603 package footprint.

For Automotive Applications: ERA-3AEB9311V and RG1608P-9311-B-T5 both carry AEC-Q200 qualification, meeting automotive reliability standards. RG1608P-9311-B-T5 additionally features anti-sulfur protection for enhanced environmental resistance.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical package dimensions for direct PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can RT0603BRD079K31L replace RT0603FRE079K31L directly?

A: Yes. Both parts share identical 9.31 kOhms resistance, 0603 package, 0.1W power rating, and -55°C to 155°C operating range. RT0603BRD079K31L offers improved ±0.1% tolerance and ±25ppm/°C temperature coefficient compared to the original ±1% and ±50ppm/°C specifications.

Q: What is the difference between RT0603DRE079K31L and RT0603BRD079K31L?

A: Both are YAGEO thin film 0603 resistors with 9.31 kOhms resistance and 0.1W power rating. RT0603BRD079K31L provides ±0.1% tolerance with ±25ppm/°C temperature coefficient. RT0603DRE079K31L provides ±0.5% tolerance with ±50ppm/°C temperature coefficient. Selection depends on circuit tolerance requirements.

Q: Is 9-2176088-7 compatible with the original part?

A: Yes, for footprint and electrical function. The TE Connectivity part maintains 9.31 kOhms resistance, 0603 package, and -55°C to 155°C operating range. It offers higher power rating (0.167W vs 0.1W), ±0.1% tolerance, and ±25ppm/°C temperature coefficient. Physical dimensions are 0.061" L x 0.031" W versus 0.063" L x 0.031" W for the original.

Q: Why choose ERA-3AEB9311V over other substitutes?

A: ERA-3AEB9311V combines ±0.1% tolerance, ±25ppm/°C temperature coefficient, AEC-Q200 automotive qualification, and exceptional inventory availability (78783 units). It is suitable for precision applications requiring automotive-grade reliability.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive electronics council standard certifying component reliability for automotive applications. ERA-3AEB9311V and RG1608P-9311-B-T5 carry this qualification, indicating suitability for automotive circuit designs.

Q: Does RG1608P-9311-B-T5 offer advantages over other ±0.1% options?

A: RG1608P-9311-B-T5 combines ±0.1% tolerance, ±25ppm/°C temperature coefficient, AEC-Q200 automotive qualification, and anti-sulfur protection. The anti-sulfur feature provides enhanced environmental resistance in corrosive atmospheres. Height is 0.020" (0.50mm) versus 0.022" (0.55mm) for other options.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (RT0603BRD079K31L, RT0603DRE079K31L, 9-2176088-7, ERA-3AEB9311V, RG1608P-9311-B-T5) carry ROHS3 compliance certification and MSL Level 1 (Unlimited) moisture sensitivity rating.