RT0603FRE0721R5L Equivalent & Substitute Parts

Part Overview

The RT0603FRE0721R5L is a 21.5 Ohm thin film chip resistor manufactured by YAGEO in the 0603 (1608 Metric) package format. This component is rated for 0.1W power dissipation with ±1% tolerance and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and performance optimization options while maintaining functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

RT0603FRE0721R5L

YAGEOIn Stock: 1072RT0603FRE0721R5L Datasheet

Current PartRFQ

RP73PF1J21R5BTDF

TE Connectivity Passive ProductIn Stock: 2063RP73PF1J21R5BTDF Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT0603FRE0721R5L are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters:

• Resistance value: 21.5 Ohms (exact match required)
• Package format: 0603 (1608 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Operating temperature range: -55°C to 155°C minimum (equal or exceeding range)
• RoHS3 compliance: Required for regulatory compatibility

Mechanical Parameters:

• Package / Case: 0603 (1608 Metric)
• Number of Terminations: 2
• Height - Seated (Max): 0.022" (0.55mm) or less

The RP73PF1J21R5BTDF qualifies as a substitute part by meeting all critical electrical and mechanical parameters while offering enhanced performance characteristics in tolerance and temperature coefficient specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the RT0603FRE0721R5L and RP73PF1J21R5BTDF maintain Active product status and full RoHS3 compliance, qualifying them for equivalent use in applications requiring 21.5 Ohm 0603 thin film resistors. The RP73PF1J21R5BTDF offers enhanced performance through tighter tolerance (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), with increased power rating (0.167W versus 0.1W). Selection between these parts depends on application-specific requirements for tolerance precision, thermal stability, and power dissipation margins. Both parts satisfy identical mechanical constraints and regulatory requirements for standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the RP73PF1J21R5BTDF directly replace the RT0603FRE0721R5L in existing designs?

A: Yes. Both parts share identical resistance value (21.5 Ohms), package format (0603), composition (thin film), operating temperature range (-55°C to 155°C), and physical dimensions within tolerance. The substitute part is mechanically and electrically compatible for direct PCB substitution.

Q: What are the key differences between these two parts?

A: The RP73PF1J21R5BTDF provides superior tolerance (±0.1% versus ±1%), lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), and higher power rating (0.167W versus 0.1W). The RT0603FRE0721R5L offers standard performance specifications suitable for general-purpose applications.

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

A: The RP73PF1J21R5BTDF is better suited for precision applications due to its ±0.1% tolerance and ±25ppm/°C temperature coefficient. The RT0603FRE0721R5L with ±1% tolerance is appropriate for standard tolerance requirements.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts carry identical Moisture Sensitivity Level (MSL 1 - Unlimited), indicating equivalent handling and storage requirements with no special moisture control measures necessary.

Q: Are there any compliance or certification differences?

A: Both parts maintain ROHS3 compliance and carry EAR99 ECCN classification. No compliance or certification differences exist between the two parts.