WR06X3003FTL Equivalent & Substitute Parts

Part Overview

The WR06X3003FTL is a 300 kOhms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Walsin Technology Corporation. This thick film resistor is designed for general-purpose applications requiring precision resistance values with tight tolerance specifications. The part is currently in active production status with 903 pieces available in original inventory. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

WR06X3003FTL

Walsin Technology CorporationIn Stock: 1008WR06X3003FTL Datasheet

Current PartRFQ

RC0603FR-07300KL

YAGEOIn Stock: 5000281RC0603FR-07300KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WR06X3003FTL are identified based on strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 300 kOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Equivalence Requirements:

• Package / Case: 0603 (1608 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance Requirements:

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The RC0603FR-07300KL from YAGEO meets all electrical, mechanical, and compliance criteria for direct substitution. Both parts share identical resistance, tolerance, power rating, temperature coefficient, and operating temperature specifications. Both are packaged in 0603 (1608 Metric) format with two terminations and are ROHS3 compliant with MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: WR06X3003FTL

The WR06X3003FTL is the specified component and remains the primary selection when available. This part is in active production status with established supply chain availability (903 pieces in stock). It is ROHS3 compliant and carries MSL 1 rating, suitable for unlimited moisture exposure conditions.

Substitute Part: RC0603FR-07300KL

The RC0603FR-07300KL from YAGEO is a direct electrical and mechanical equivalent. Both parts satisfy identical electrical specifications (300 kOhms ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C operating range) and are packaged in 0603 (1608 Metric) format. Both parts are ROHS3 compliant with MSL 1 rating. The RC0603FR-07300KL features moisture-resistant thick film composition and maintains a lower seated height (0.022" versus 0.024"), which may provide advantages in space-constrained applications. This substitute is in active production with substantial inventory availability (5,000,200 pieces). The primary difference is packaging format: the WR06X3003FTL is supplied in Tape & Reel format, while the RC0603FR-07300KL is available in Cut Tape and Digi-Reel® formats.

Both parts carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications, confirming regulatory equivalence for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-07300KL replace WR06X3003FTL in all applications?

A: Yes. Both parts meet identical electrical specifications (300 kOhms ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C), are packaged in 0603 (1608 Metric) format, and carry equivalent compliance certifications (ROHS3, MSL 1). The RC0603FR-07300KL is a direct substitute.

Q: What is the difference in seated height between these parts?

A: The WR06X3003FTL has a maximum seated height of 0.024" (0.60mm), while the RC0603FR-07300KL has a maximum seated height of 0.022" (0.55mm). The RC0603FR-07300KL is 0.002" lower, which may be beneficial in applications with tight vertical clearance constraints.

Q: Are there packaging differences between these parts?

A: Yes. The WR06X3003FTL is supplied in Tape & Reel (TR) packaging, while the RC0603FR-07300KL is available in Cut Tape (CT) and Digi-Reel® formats. Both packaging types are standard for 0603 chip resistors and do not affect component performance or compatibility on PCBs.

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

A: Yes. Both the WR06X3003FTL and RC0603FR-07300KL carry MSL 1 (Unlimited) rating, indicating they can be exposed to moisture without restrictions and do not require special storage or handling conditions.

Q: What is the temperature coefficient specification, and is it the same for both parts?

A: Both parts have a temperature coefficient of ±100ppm/°C, meaning the resistance value will change by a maximum of 100 parts per million for each degree Celsius change in operating temperature. This specification is identical for both parts.

Q: Are both parts RoHS compliant?

A: Yes. Both the WR06X3003FTL and RC0603FR-07300KL are ROHS3 compliant, confirming they meet the Restriction of Hazardous Substances directive requirements.

Q: What is the operating temperature range for these resistors?

A: Both parts operate across the temperature range of -55°C to 155°C, providing performance stability across industrial and commercial temperature environments.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Both parts are mechanically and electrically equivalent in 0603 (1608 Metric) package format with identical footprints and electrical characteristics. They can be used interchangeably on PCB assemblies without design modifications.