CPF0402B43KE TE Connectivity Resistor (Resistor Chip) In Stock

Name: CPF0402B43KE
Brand: TE Connectivity
SKU: CPF0402B43KE
Availability: InStock

TE Connectivity CPF0402B43KE is a precision thin-film 0402 SMT resistor with 43 kohm resistance, ±0.1% tolerance, and ±25 ppm/°C temperature coefficient. Rated at 63 mW, it delivers stable high-value resistance for compact analog and measurement designs. Available from stock worldwide with fast shipping.

OBSOLETEResistorVerified Jul 2026

Package / Visual Reference

CPF0402B43KEResistor Chip

Quick Facts

Manufacturer: TE Connectivity
Package: Resistor Chip
Pin Count: 2
Lifecycle: OBSOLETE
Datasheet: CPF0402B43KE 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

What are the key features of CPF0402B43KE?

43 kohm precision thin-film resistor with ±0.1% tolerance for high-accuracy analog feedback, bias networks, and voltage dividers
Ultra-low ±25 ppm/°C temperature coefficient limits resistance drift to under 5 ohm across a 100°C operating span
Miniature 0402 SMT package (1 mm × 0.5 mm) rated at 63 mW enables ultra-dense PCB layouts in portable and wearable designs

What is CPF0402B43KE used for?

The CPF0402B43KE is optimized for precision analog applications including high-impedance input protection, op-amp bias resistors, voltage reference dividers, and filter networks where 43 kohm accuracy at ±0.1% is critical. Its ±25 ppm/°C TCR ensures the resistance value remains stable across industrial operating temperatures, reducing calibration requirements in measurement instruments. The ultra-compact 0402 footprint makes it a natural fit for medical devices, portable test equipment, and IoT sensor nodes.

What are the specifications of CPF0402B43KE?

Reach Compliance Code	Compliant
YTEOL	0
Additional Feature	PRECISION
Construction	Rectangular
Mounting Feature	SURFACE MOUNT
Package Height	0.3mm
Package Length	1mm
Package Style	SMT
Package Width	0.5mm
Packing Method	TR, PAPER, 7 INCH
Rated Power Dissipation (P)	0.063W
Rated Temperature	70°C
Resistance	43000Ω
Resistor Type	FIXED RESISTOR
Size Code	0402
Surface Mount	YES
Technology	THIN FILM
Temperature Coefficient	25ppm/°C
Terminal Shape	WRAPAROUND
Tolerance	0.1%
Working Voltage	25V
Package	Resistor Chip

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8533.21.00.30

Where can I find the CPF0402B43KE datasheet?

CPF0402B43KE Datasheet Download

Official datasheet from TE Connectivity

What are equivalent replacements for CPF0402B43KE?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What resistance value, tolerance, and TCR does the CPF0402B43KE offer for precision designs?

The CPF0402B43KE is a 43 kohm precision thin-film resistor with ±0.1% initial tolerance and a ±25 ppm/°C temperature coefficient. Its 63 mW power rating in the 0402 package makes it suitable for high-impedance signal-conditioning networks where resistance accuracy and thermal stability are both critical design requirements.

When should a designer choose the CPF0402B43KE over a standard thick-film 0402 resistor?

Designers should select the CPF0402B43KE when circuit accuracy demands better than ±1% tolerance or long-term drift below 25 ppm/°C over temperature. For 43 kohm bias networks, voltage dividers, or op-amp gain stages in instrumentation with operating ranges spanning -55°C to +155°C, the thin-film construction outperforms typical thick-film parts in stability and noise performance.

How does the 0402 package size of the CPF0402B43KE affect PCB placement in compact product designs?

The 0402 case of the CPF0402B43KE measures 1 mm × 0.5 mm and is supplied on 7-inch tape-and-reel for pick-and-place assembly, supporting component densities up to 40% higher than 0603 layouts. At 63 mW maximum dissipation and 43 kohm resistance, it comfortably handles signal-level currents while occupying minimal board area in wearables, IoT nodes, and medical sensor modules.

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