RT0603FRE0734R8L Equivalent & Substitute Parts

Part Overview

The RT0603FRE0734R8L is a 34.8 Ohms ±1% thin film chip resistor in 0603 (1608 Metric) package format, rated for 0.1W power dissipation. Manufactured by YAGEO under the RT series, this component is actively produced and ROHS3 compliant. Substitute parts may be required due to inventory constraints, specific compliance requirements, or performance specifications that exceed the original component's tolerance and temperature coefficient ratings.

Substiute Parts

RT0603FRE0734R8L

YAGEOIn Stock: 1115RT0603FRE0734R8L Datasheet

Current PartRFQ

RP73PF1J34R8BTDF

TE Connectivity Passive ProductIn Stock: 6667RP73PF1J34R8BTDF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RT0603FRE0734R8L is permissible with the RP73PF1J34R8BTDF based on the following criteria:

Matching Parameters:

• Resistance value: 34.8 Ohms (identical)
• Package format: 0603 (1608 Metric) (identical)
• Composition: Thin Film (identical)
• Operating temperature range: -55°C ~ 155°C (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)
• Number of terminations: 2 (identical)

Enhanced Parameters in Substitute:

• Tolerance: ±0.1% (tighter than ±1%)
• Power rating: 0.167W (higher than 0.1W)
• Temperature coefficient: ±25ppm/°C (lower than ±50ppm/°C)

The substitute part maintains all critical mechanical and thermal compatibility while providing superior electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

RT0603FRE0734R8L (YAGEO): Select this part for applications requiring ROHS3 compliance and standard tolerance specifications. The component is actively produced with established supply availability.

RP73PF1J34R8BTDF (TE Connectivity): This substitute provides enhanced performance through tighter tolerance (±0.1% vs ±1%), higher power rating (0.167W vs 0.1W), and improved temperature stability (±25ppm/°C vs ±50ppm/°C). However, note that this part is RoHS non-compliant and REACH status is vendor undefined. Selection should be based on specific application requirements where enhanced electrical performance justifies the compliance trade-offs.

Frequently Asked Questions (FAQ)

Q: Can RP73PF1J34R8BTDF directly replace RT0603FRE0734R8L in all applications?

A: Direct replacement is mechanically and thermally compatible due to identical package format (0603), operating temperature range (-55°C ~ 155°C), and moisture sensitivity level. However, verify compliance requirements, as the substitute is RoHS non-compliant while the original is ROHS3 compliant.

Q: What are the key differences between these parts?

A: The substitute offers superior electrical performance with ±0.1% tolerance versus ±1%, higher power dissipation capability (0.167W vs 0.1W), and lower temperature coefficient (±25ppm/°C vs ±50ppm/°C). Physical dimensions are nearly identical with minimal variation.

Q: Are there any PCB layout considerations when substituting?

A: Both parts use the 0603 (1608 Metric) package with identical termination count and maximum seated height (0.022" / 0.55mm). Footprint compatibility is maintained. Minor dimensional differences (1.60mm vs 1.55mm length) do not affect standard 0603 land patterns.

Q: Which part should be selected for high-precision applications?

A: The RP73PF1J34R8BTDF is suitable for applications requiring tighter tolerance control and lower temperature coefficient drift. Verify compliance requirements before selection.

Q: What is the impact of the tolerance difference?

A: At 34.8 Ohms, the ±1% tolerance (RT0603FRE0734R8L) allows ±0.348 Ohms variation, while ±0.1% tolerance (RP73PF1J34R8BTDF) allows ±0.0348 Ohms variation. Select based on circuit accuracy requirements.