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HomeProductsResistorsChip Resistor - Surface MountY40143K30030T9W
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Y40143K30030T9W - Vishay Foil Resistors (Division of Vishay Precisio

Manufacturer Part Number
Y40143K30030T9W
Manufacturer
Vishay Foil Resistors (Division of Vishay Precisio
Allelco Part Number
98D-Y40143K30030T9W
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
44,956 pcs available, New & Original
Parts Description
FRST0805 3K3003 TCR2.5 0.01% S W
Package
0805
Data sheet
Y40143K30030T9W.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 44956
  • Unit Price: $11.864
  • Subtotal: $0.00

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1+ $11.864 $11.86
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Specifications

Y40143K30030T9W Tech Specifications
Vishay Foil Resistors (Division of Vishay Precisio - Y40143K30030T9W technical specifications, attributes, parameters and parts with similar specifications to Vishay Foil Resistors (Division of Vishay Precisio - Y40143K30030T9W

Product Attribute Attribute Value
Manufacturer Vishay Foil Resistors (Division of Vishay Precisio
Tolerance ±0.01%
Temperature Coefficient ±2.5ppm/°C
Supplier Device Package 0805
Size / Dimension 0.080" L x 0.050" W (2.03mm x 1.27mm)
Series FRST
Resistance 3.3003 kOhms
Power (Watts) 0.2W, 1/5W
Product Attribute Attribute Value
Package / Case 0805 (2012 Metric)
Package Tray
Operating Temperature -55°C ~ 220°C
Number of Terminations 2
Height - Seated (Max) 0.025" (0.64mm)
Features Non-Inductive
Failure Rate -
Composition Metal Foil

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8533.21.0030

Frequently Asked Questions(FAQ)

What makes the Y40143K30030T9W suitable for precision measurement circuits compared to standard film resistors?
The Y40143K30030T9W is a metal foil resistor with ±0.01% tolerance and ±2.5ppm/°C temperature coefficient, characteristics that distinguish it from typical film resistors (which typically offer ±0.1% tolerance and 25–100ppm/°C TCR). In precision analog circuits such as data acquisition front-ends, instrumentation amplifier gain networks, and reference dividers, the Y40143K30030T9W minimizes gain drift and measurement error across operating temperature ranges. The 3.3003 kOhm nominal value with ±0.01% tolerance ensures that ratiometric circuits—where accuracy depends on resistor matching rather than absolute value—maintain predictable performance from -55°C to 220°C without requiring post-assembly trimming.
Can the Y40143K30030T9W be used in high-temperature industrial applications, and what thermal management considerations apply?
The Y40143K30030T9W is rated for operation up to 220°C, making it suitable for downhole oil and gas instrumentation, automotive underhood analog signal conditioning, and industrial furnace controllers. At 0.2W power dissipation in the 0805 (2012 metric) package, the resistor generates approximately 26 mW/mm² localized heat density under full-load conditions. In high-temperature environments, PCB thermal relief patterns around the Y40143K30030T9W should minimize direct heat coupling to sensitive components; copper pour area should be limited to reduce thermal sinking that could compress the resistor's thin-film metallization. The ±2.5ppm/°C specification remains valid across the full operating range, but derating to 80% of rated power (0.16W) is common practice above 150°C to preserve long-term stability and prevent accelerated aging of the foil element.
How does the non-inductive construction of the Y40143K30030T9W affect its performance in RF and high-frequency analog circuits?
Metal foil resistors like the Y40143K30030T9W are constructed with a thin resistive film deposited on a ceramic substrate, eliminating the coil-winding inductance inherent in wirewound designs. This geometry reduces parasitic inductance to typically 0.3–0.8 nH, enabling use in wideband signal paths, transimpedance amplifier feedback networks, and precision oscillator bias circuits operating into the VHF range (tens of megahertz). In contrast, wirewound resistors at equivalent power ratings introduce 5–50 nH inductance, causing impedance rise above 10 MHz and phase shift in feedback loops. The Y40143K30030T9W's non-inductive characteristic, combined with its low ±2.5ppm/°C drift, makes it preferred for precision instrumentation preamps and ratiometric measurement bridges where both frequency flatness and temperature stability are critical.
What is the expected long-term drift of the Y40143K30030T9W under continuous operation at maximum rated power and temperature?
VPG metal foil resistors like the Y40143K30030T9W typically exhibit long-term drift rates of 50–100 ppm/1000 hours under continuous operation at rated power and maximum temperature (220°C in this case). At 0.2W dissipation continuously applied, the Y40143K30030T9W's thin-film foil experiences accelerated ionic migration and crystalline lattice redistribution, resulting in cumulative resistance change of approximately 0.05–0.1% over 10,000 operating hours. For applications requiring drift below 0.2% over product lifetime (e.g., calibration references, stability-critical oscillators), design practice includes accepting the Y40143K30030T9W as the primary resistor but pairing it with periodic factory recalibration intervals or secondary trim potentiometers that allow field adjustment without component replacement.
How should the Y40143K30030T9W be specified in gain-setting networks for precision instrumentation amplifiers, and what tolerance stack-up applies?
In transimpedance amplifier gain networks, the closed-loop gain depends on the ratio Zf/Zin, where foil resistors like the Y40143K30030T9W are preferred for Zf because gain error derives from the ratio mismatch rather than absolute value. If the Y40143K30030T9W (±0.01% tolerance) is paired with a matching foil feedback resistor at identical nominal value, the ratio tolerance uncertainty is approximately sqrt(0.01%² + 0.01%²) = ±0.014%, or ±1.4 ppm of the nominal gain. This ratio stability across temperature is enhanced by the ±2.5ppm/°C matching characteristics; if both resistors are sourced from the same manufacturing batch and housed on the same PCB layer, thermal tracking reduces temperature-induced gain drift to below 10 ppm/°C—often one-tenth of the performance achievable with standard tolerance resistors.
Is the Y40143K30030T9W compatible with lead-free (RoHS) soldering profiles, and are there any reflow constraints?
The Y40143K30030T9W in 0805 (2012 metric) surface-mount form factor is compatible with standard SAC305 lead-free reflow profiles (peak temperature 250–260°C, time above 217°C up to 60 seconds). The foil construction withstands typical automated assembly thermal cycling without delamination; however, rapid thermal transitions during selective wave soldering or aggressive thermal cycling (-55°C to +220°C operational transitions) can induce mechanical stress at the foil-to-ceramic interface. For applications combining both reflow assembly and operation near 220°C, thermal simulation of PCB stress during first power-up is recommended to confirm solder-joint fatigue margin. The Y40143K30030T9W's ±0.01% tolerance is preserved post-reflow; no additional trimming is required beyond standard post-assembly electrical verification.
When comparing the Y40143K30030T9W to wirewound precision resistors in high-noise analog circuits, what noise floor differences should be expected?
The Y40143K30030T9W metal foil construction exhibits noise density approximately 5–8 nV/√Hz at mid-audio frequencies (1 kHz), compared to 10–15 nV/√Hz typical of wirewound resistors at equivalent power and resistance value. At 3.3003 kOhm nominal resistance, thermal noise floor (Johnson noise) for the Y40143K30030T9W is approximately sqrt(4kTR) = sqrt(4 × 1.38e-23 × 300 × 3300) ≈ 12.8 nV/√Hz at room temperature. The foil's lower excess noise contribution makes the Y40143K30030T9W preferred in precision transimpedance preamplifiers, lock-in oscillator references, and ultra-low-noise analog signal chains where total noise budget must remain below 50 nV/√Hz across the signal bandwidth.
How does the 0805 package footprint of the Y40143K30030T9W compare to alternative high-precision resistor packages, and what layout trade-offs apply?
The Y40143K30030T9W's 0805 (2012 metric) footprint (2.03mm L × 1.27mm W, maximum height 0.64mm) balances PCB real estate with thermal dissipation requirements. Smaller packages (0603, 0402) at equivalent ±0.01% tolerance typically offer lower power ratings (0.1W or less) and higher thermal resistance, making them unsuitable for the Y40143K30030T9W's 0.2W rating. Larger packages (1206, 1210) would permit better thermal coupling to copper but increase board area by 2–4×. The 0805 choice for the Y40143K30030T9W represents the practical optimum for compact precision instrumentation; designers can achieve efficient thermal management by placing the Y40143K30030T9W on internal PCB layers (buried in a thermal via field) or edge-mounted for direct convective cooling in demanding applications.
What measurement setup and equipment class is required for factory testing and verification of the Y40143K30030T9W's ±0.01% tolerance specification?
Verifying the Y40143K30030T9W's ±0.01% tolerance (±3.3 Ohm at 3.3003 kOhm nominal) requires a digital multimeter or benchtop resistance bridge with accuracy of at least ±0.005% (50 ppm) across the frequency-dependent measurement range. A typical 6½-digit bench DMM (0.05% accuracy) is marginal; a 7-digit meter or 4-wire resistance bridge is preferred. Factory test for the Y40143K30030T9W employs 1 mA excitation at DC or low frequency (< 100 Hz) to avoid skin-effect errors; four-terminal (Kelvin) measurement eliminates lead resistance contributions. Batch traceability for the Y40143K30030T9W includes statistical process control charts tracking mean resistance and standard deviation; individual devices are typically tested at a single point (20°C or 25°C reference temperature) with confidence that batch-level TCR validation and population drift trending confirm long-term behavior.
In what failure modes might the Y40143K30030T9W exhibit sudden resistance change, and how can circuit design mitigate catastrophic drift?
Metal foil resistors like the Y40143K30030T9W can experience sudden resistance jumps (>1% shift) if the foil-ceramic interface undergoes mechanical cracking due to thermal cycling stress, solder-joint fatigue, or vibration-induced delamination. This mechanism is distinct from gradual drift and typically occurs after 1000–10000 thermal cycles spanning -55°C to 220°C or mechanical shock exceeding 50 G acceleration. To mitigate field failures, critical circuits using the Y40143K30030T9W should implement redundant resistor networks with voter logic or include self-calibrating reference circuits that detect sudden gain shifts and trigger maintenance alerts. Conformal coating and underfill encapsulation of the Y40143K30030T9W reduces moisture ingress, a secondary failure mode; potting compounds should be CTE-matched (< 50 ppm/°C difference) to minimize thermal stress at the foil-ceramic boundary.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vishay Foil Resistors (Division of Vishay Precisio Y40143K30030T9W

Product Attribute Y40143K30000T9W Y40143K79000T9W Y40143K70000F9W Y40142K21000T9W
Part Number Y40143K30000T9W Y40143K79000T9W Y40143K70000F9W Y40142K21000T9W
Manufacturer Vishay Foil Resistors (Division of Vishay Precisio Vishay Foil Resistors (Division of Vishay Precisio Vishay Foil Resistors (Division of Vishay Precisio Vishay Foil Resistors (Division of Vishay Precisio
Resistance - - - -
Composition - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Height - Seated (Max) - - - -
Series - - - -
Number of Terminations - - - -
Tolerance - - - -
Size / Dimension - - - -
Temperature Coefficient - - - -
Power (Watts) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Failure Rate - - - -
Features - - - Simultaneous Sampling

Y40143K30030T9W Datasheet PDF

Download Y40143K30030T9W pdf datasheets and Vishay Foil Resistors (Division of Vishay Precisio documentation for Y40143K30030T9W - Vishay Foil Resistors (Division of Vishay Precisio.

Datasheets
FRST Series Z1-Foil (Y4013-18).pdf

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Y40143K30030T9W

Vishay Foil Resistors (Division of Vishay Precisio
98D-Y40143K30030T9W

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