FC0603E1000FST1 Equivalent & Substitute Parts

Part Overview

The FC0603E1000FST1 is a 100 Ohms ±1% thin film chip resistor in 0603 (1608 Metric) package rated for 0.125W (1/8W) power dissipation. This component is designed for RF and high-frequency applications with a temperature coefficient of ±25ppm/°C and operating range of -55°C to 155°C. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are maintained while offering alternative tolerance grades or improved performance characteristics within the same package and thermal parameters.

Substiute Parts

FC0603E1000FST1

Vishay Dale Thin FilmIn Stock: 765FC0603E1000FST1 Datasheet

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FC0603E1000BTBST1

Vishay Dale Thin FilmIn Stock: 4994FC0603E1000BTBST1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FC0603E1000FST1 is determined by strict adherence to the following critical parameters:

• Resistance value must remain 100 Ohms
• Package must be 0603 (1608 Metric) with identical physical dimensions
• Power rating must be 0.125W (1/8W) minimum
• Composition must be thin film
• Temperature coefficient must be ±25ppm/°C
• Operating temperature range must span -55°C to 155°C
• RoHS3 compliance must be maintained
• Moisture Sensitivity Level must be 1 (Unlimited)

Tolerance grade may vary provided the substitute part meets or exceeds the tolerance specification of the main part. The FC0603E1000BTBST1 qualifies as a direct substitute with improved tolerance performance (±0.1% versus ±1%).

Parameter Comparison

Engineering Selection Recommendations

Both the FC0603E1000FST1 and FC0603E1000BTBST1 are Active status components manufactured by Vishay Dale and maintain full ROHS3 compliance. The FC0603E1000BTBST1 provides improved tolerance performance at ±0.1% compared to the ±1% tolerance of the FC0603E1000FST1, while maintaining identical electrical and mechanical specifications. Selection between these parts depends on circuit tolerance requirements and application precision demands. Both parts are suitable for RF and high-frequency applications within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can FC0603E1000BTBST1 be used as a direct replacement for FC0603E1000FST1?

A: Yes. The FC0603E1000BTBST1 is a direct substitute. It maintains identical resistance value, power rating, package dimensions, thermal characteristics, and compliance certifications. The improved tolerance specification (±0.1% versus ±1%) makes it suitable for applications requiring higher precision.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the 0603 (1608 Metric) package with dimensions of 0.064" L x 0.032" W (1.63mm x 0.81mm) and maximum seated height of 0.033" (0.84mm). PCB layout and assembly processes remain unchanged.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both the FC0603E1000FST1 and FC0603E1000BTBST1 are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited) and operate across the identical temperature range of -55°C to 155°C with ±25ppm/°C temperature coefficient.

Q: What is the primary difference between these substitute parts?

A: The primary difference is tolerance grade. The FC0603E1000BTBST1 offers ±0.1% tolerance compared to the ±1% tolerance of the FC0603E1000FST1. All other electrical and mechanical parameters remain identical.

Q: Are both parts suitable for RF and high-frequency applications?

A: Yes. Both parts are thin film composition resistors specifically designed for RF and high-frequency applications with identical performance characteristics in this category.