CPF0603B31K6E1 TE Connectivity Resistor (Resistor Chip) In Stock
TE Connectivity CPF0603B31K6E1 is a precision thin film SMD resistor with 31.6 kΩ resistance value, ±0.1% tolerance, and 25 ppm/°C temperature coefficient in 0603 package. Features high-precision thin film construction delivering stable resistance performance in medical, instrumentation, and industrial calibration circuits. RoHS and REACH compliant, supplied in 1000-unit tape-and-reel for automated SMT assembly.
- Manufacturer
- TE Connectivity
- Package
- Resistor Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- CPF0603B31K6E1 Datasheet PDF
- Category
- Resistor
- Temp Range
- -55.0°C to 155.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 31.6 kΩ thin film resistor with ±0.1% tolerance and 25 ppm/°C TCR provides precision resistance stability within 3.16 ohm across the full operating temperature range
- Thin film construction achieves superior noise performance (excess noise < -30 dB) and long-term stability better than ±0.25% over 10,000 hours at rated power
- 0603 package (1.55 x 0.8 x 0.45 mm) enables high-density precision resistor placement in medical, industrial instrumentation, and analog signal chain designs
Applications
The CPF0603B31K6E1 is designed for precision analog signal conditioning circuits, feedback networks in operational amplifier designs, and precision voltage dividers in medical diagnostic equipment and industrial calibration instruments where ±0.1% resistance accuracy is mandatory. Its 25 ppm/°C temperature coefficient ensures that resistance drift remains below 0.08% across a 30°C ambient temperature change, making it suitable for data acquisition front ends, bridge sensor networks, and precision ADC reference circuits. The thin film construction also provides excellent long-term stability in automated test equipment (ATE), laboratory instruments, and avionics signal processing boards requiring stable 31.6 kΩ resistance over extended service life.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 14 Weeks, 3 Days |
| YTEOL | 14 |
| Additional Feature | PRECISION |
| Construction | Rectangular |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 0.45mm |
| Package Length | 1.55mm |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Package Width | 0.8mm |
| Packing Method | TR |
| Physical Dimension | 1.55mm x .8mm x .45mm |
| Rated Power Dissipation (P) | 0.063W |
| Rated Temperature | 70°C |
| Resistance | 31600Ω |
| Resistor Type | FIXED RESISTOR |
| Size Code | 0603 |
| Surface Mount | YES |
| Technology | THIN FILM |
| Temperature Coefficient | 25ppm/°C |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Shape | WRAPAROUND |
| Tolerance | 0.1% |
| Working Voltage | 50V |
| Package | Resistor Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.21.00.30 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What resistance value and tolerance does the CPF0603B31K6E1 offer for precision analog designs?
The CPF0603B31K6E1 provides 31.6 kΩ resistance with ±0.1% tolerance, meaning the actual resistance is guaranteed between 31,568 ohm and 31,632 ohm, making it suitable for precision feedback networks, voltage dividers, and gain-setting resistors in instrumentation amplifiers and ADC reference circuits.
How does the 25 ppm/°C TCR of the CPF0603B31K6E1 compare to standard thick film resistors?
At 25 ppm/°C, the CPF0603B31K6E1 changes resistance by only 0.79 ohm per 1°C change, approximately 4x to 8x more stable than standard thick film resistors rated at 100 to 200 ppm/°C, enabling precision circuits to maintain ±0.1% system accuracy across a 40°C operating temperature window.
What is the typical lead time for the CPF0603B31K6E1 and how should procurement planners account for it?
The CPF0603B31K6E1 has a factory lead time of approximately 14 weeks and 3 days, which is typical for precision thin film resistors. Procurement teams for medical or industrial designs should plan orders at least 4 months ahead or maintain safety stock of 1,000-unit reels to avoid production line delays.
Which precision circuit topologies benefit most from using the CPF0603B31K6E1 at 31.6 kΩ?
Precision circuit topologies that benefit most include voltage dividers targeting E96 standard resistor ratios, gain-setting networks in instrumentation amplifiers operating at ±15V supplies, ADC anti-aliasing filter RC networks, and bridge completion resistors in load cell or strain gauge interfaces where 31.6 kΩ E96 value provides exact ratio matching within ±0.1%.
What packaging format is the CPF0603B31K6E1 supplied in and how does it support high-volume SMT production?
The CPF0603B31K6E1 is supplied in a 1,000-unit tape-and-reel format compatible with standard 0603 feeder tracks on automated pick-and-place machines, enabling high-volume SMT reflow soldering at 260°C peak temperature with consistent component orientation and minimal placement errors across precision analog PCB assemblies.
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