RT0603FRE073K74L Equivalent & Substitute Parts

Part Overview

The RT0603FRE073K74L is a 3.74 kOhms ±1% thin film chip resistor in 0603 (1608 Metric) package rated at 0.1W (1/10W) power dissipation. Manufactured by YAGEO under the RT series, this component is actively produced and ROHS3 compliant. Substitute parts are identified when design requirements demand improved tolerance, higher power ratings, automotive qualification, or enhanced environmental performance while maintaining the same resistance value and package footprint.

Substiute Parts

RT0603FRE073K74L

YAGEOIn Stock: 1067RT0603FRE073K74L Datasheet

Current PartRFQ

RT0603BRD073K74L

YAGEOIn Stock: 20199RT0603BRD073K74L Datasheet

UpgradeRFQ

RT0603BRE073K74L

YAGEOIn Stock: 10451RT0603BRE073K74L Datasheet

UpgradeRFQ

RT0603DRE073K74L

YAGEOIn Stock: 4144RT0603DRE073K74L Datasheet

UpgradeRFQ

6-2176088-1

TE Connectivity Passive ProductIn Stock: 15326-2176088-1 Datasheet

DirectRFQ

ERA-3AEB3741V

Panasonic Electronic ComponentsIn Stock: 5333ERA-3AEB3741V Datasheet

UpgradeRFQ

RG1608P-3741-B-T5

SusumuIn Stock: 29769RG1608P-3741-B-T5 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Compatibility Parameters:

• Resistance value: 3.74 kOhms (exact match required)
• Package: 0603 (1608 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Operating temperature range: -55°C to 155°C minimum (equal or better)
• RoHS compliance: ROHS3 Compliant (equal or better)
• Moisture sensitivity: MSL 1 (equal or better)

Allowable Variation Parameters:

• Tolerance: May be equal or tighter (±1% or better)
• Power rating: May be equal or higher (0.1W or greater)
• Temperature coefficient: May be equal or lower in absolute value (±50ppm/°C or better)
• Manufacturer: Different manufacturers permitted if all parameters meet criteria

Substitute parts are grouped by tolerance grade and power rating improvements, with additional qualifications noted where applicable.

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: RT0603BRE073K74L (YAGEO) provides tolerance improvement to ±0.1% while maintaining the original temperature coefficient specification and power rating. This part is suitable when tighter tolerance is required without additional environmental qualifications.

For Precision Analog Circuits: RT0603BRD073K74L (YAGEO) or RG1608P-3741-B-T5 (Susumu) offer both ±0.1% tolerance and ±25ppm/°C temperature coefficient, providing superior stability across the operating temperature range. RG1608P-3741-B-T5 adds anti-sulfur protection and AEC-Q200 automotive qualification.

For Higher Power Dissipation Requirements: 6-2176088-1 (TE Connectivity) increases power rating to 0.167W (1/6W) while maintaining ±0.1% tolerance and ±25ppm/°C temperature coefficient. This part accommodates applications requiring greater thermal headroom.

For Automotive and Harsh Environment Applications: ERA-3AEB3741V (Panasonic) and RG1608P-3741-B-T5 (Susumu) both carry AEC-Q200 automotive qualification. RG1608P-3741-B-T5 additionally provides anti-sulfur protection for corrosive environments.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and the -55°C to 155°C operating temperature range of the original component.

Frequently Asked Questions (FAQ)

Q: Can RT0603DRE073K74L replace RT0603FRE073K74L in all applications? A: RT0603DRE073K74L meets all mandatory compatibility parameters with ±0.5% tolerance, which is tighter than the original ±1%. It is electrically and mechanically compatible. Selection depends on circuit tolerance requirements; if ±1% tolerance is specified, ±0.5% is acceptable. If ±1% is the maximum allowable tolerance, verify circuit performance.

Q: What is the difference between RT0603BRD073K74L and RT0603BRE073K74L? A: Both offer ±0.1% tolerance improvement over the original part. RT0603BRD073K74L has ±25ppm/°C temperature coefficient, while RT0603BRE073K74L maintains ±50ppm/°C. RT0603BRD073K74L provides superior temperature stability for precision applications.

Q: Is 6-2176088-1 a direct replacement? A: 6-2176088-1 is mechanically and electrically compatible with identical resistance, tolerance, and package. The higher power rating (0.167W vs 0.1W) is a beneficial upgrade. Physical dimensions are nearly identical (1.55mm vs 1.60mm length, 0.50mm vs 0.55mm height), suitable for standard 0603 footprints.

Q: Can automotive-qualified parts be used in non-automotive applications? A: Yes. ERA-3AEB3741V and RG1608P-3741-B-T5 exceed the specifications of the original part and are fully compatible. Automotive qualification indicates enhanced reliability and environmental testing; these parts are suitable for any application requiring the RT0603FRE073K74L specifications.

Q: What does "anti-sulfur" mean on RG1608P-3741-B-T5? A: Anti-sulfur protection refers to resistance to hydrogen sulfide and other corrosive sulfur compounds in industrial and marine environments. This feature is beneficial in harsh environments but not required for standard applications.

Q: Are all substitute parts available in the same packaging format? A: Yes. All listed substitute parts are supplied in Tape & Reel (TR) packaging, matching the original RT0603FRE073K74L format for automated assembly compatibility.