PCF0805R-1K50BI WELWYN Resistor (Resistor Chip) In Stock
WELWYN PCF0805R-1K50BI is a precision thin-film chip resistor with 1.5 kΩ resistance and an ultra-tight 0.1% tolerance in a compact 0805 package. Rated at 0.1 W power dissipation with a low temperature coefficient, it delivers stable performance for high-accuracy analog and measurement circuits. Available in tape-and-reel packaging for automated SMT assembly.
- Manufacturer
- WELWYN
- Package
- Resistor Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- PCF0805R-1K50BI Datasheet PDF
- Category
- Resistor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-tight 0.1% resistance tolerance for precision analog signal conditioning
- Thin-film construction enabling low TCR and stable 1.5 kΩ resistance over temperature
- Compact 0805 (2012 metric) package rated at 0.1 W power dissipation
- Tape-and-reel packaging compatible with high-volume automated SMT placement
Applications
The PCF0805R-1K50BI is suited for precision voltage dividers, feedback networks, and current-sensing circuits in instrumentation, medical devices, and telecommunications equipment. Its 0.1% tolerance ensures minimal measurement error in high-accuracy ADC reference and gain-setting applications. The 0805 package simplifies integration into compact PCB layouts where space and thermal performance are critical.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 0.1% tolerance of the PCF0805R-1K50BI compare to standard resistors for precision circuit design?
Standard thick-film resistors typically carry 1% or 5% tolerances, while the PCF0805R-1K50BI offers a 0.1% tolerance on its 1.5 kΩ resistance value. This ten-fold improvement in accuracy makes it suitable for precision voltage dividers, ADC reference networks, and differential amplifier gain-setting resistors where tight matching is essential.
What power rating applies to the PCF0805R-1K50BI and how does that affect thermal design in dense layouts?
The PCF0805R-1K50BI is rated at 0.1 W (100 mW) continuous power dissipation in the 0805 package. Designers should derate by approximately 50% above 70°C ambient to maintain long-term reliability, making it appropriate for low-power signal paths rather than power-carrying lines in compact PCB assemblies.
Which alternative resistance values does Welwyn offer in the PCF0805R series for design flexibility?
The Welwyn PCF0805R series includes resistance values spanning from 10 Ω to 1 MΩ, all sharing the same 0.1% tolerance and 0.1 W rating in the 0805 package. This breadth lets engineers select from E96 series values to populate precision resistor networks or replace multiple 1% parts with a single matched 0.1% component.
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About WELWYN
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