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HomeProductsResistorsChip Resistor - Surface MountRMCP0805FT69K8
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RMCP0805FT69K8 - Stackpole Electronics Inc

Manufacturer Part Number
RMCP0805FT69K8
Manufacturer
Stackpole Electronics, Inc.
Allelco Part Number
98D-RMCP0805FT69K8
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
46,937 pcs available, New & Original
Parts Description
RES 69.8K OHM 1% 1/3W 0805
Package
0805
Data sheet
-
RoHs Status
 
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In stock: 46937
  • Unit Price: $0.008
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.008 $0.01
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

RMCP0805FT69K8 Tech Specifications
Stackpole Electronics Inc - RMCP0805FT69K8 technical specifications, attributes, parameters and parts with similar specifications to Stackpole Electronics Inc - RMCP0805FT69K8

Product Attribute Attribute Value
Manufacturer Stackpole Electronics, Inc.
Tolerance ±1%
Temperature Coefficient ±100ppm/°C
Supplier Device Package 0805
Size / Dimension 0.079" L x 0.049" W (2.00mm x 1.25mm)
Series RMCP
Resistance 69.8 kOhms
Ratings AEC-Q200
Power (Watts) 0.333W, 1/3W
Product Attribute Attribute Value
Package / Case 0805 (2012 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 155°C
Number of Terminations 2
Height - Seated (Max) 0.026" (0.65mm)
Features Automotive AEC-Q200
Failure Rate -
Composition Thick Film

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
ECCN EAR99
HTSUS 8533.21.0030

Frequently Asked Questions(FAQ)

What makes the RMCP0805FT69K8 suitable for automotive applications compared to standard industrial resistors?
The RMCP0805FT69K8 carries AEC-Q200 qualification, which requires extensive reliability testing including thermal cycling, moisture resistance, and mechanical stress validation. Standard resistors typically undergo less rigorous automotive-specific screening. The RMCP0805FT69K8's MSL 1 rating (unlimited moisture sensitivity) and RoHS3 compliance eliminate reliability concerns in underfilled or potted automotive modules where temperature excursions between -55°C and 155°C are common. This qualification path is mandatory for safety-critical circuits in engine control units, transmission modules, or body electronics where component failure could trigger functional degradation or warranty claims.
How does the ±1% tolerance of the RMCP0805FT69K8 affect precision analog signal conditioning circuits?
In signal conditioning applications, the RMCP0805FT69K8's ±1% tolerance establishes a 698 Ohm to 698 Ohm resistive range around the nominal 69.8 kΩ value. For transimpedance amplifier configurations or current-to-voltage conversion stages, this tolerance directly impacts output scaling accuracy. When paired with a precision op-amp (typically ±0.1% accuracy), the RMCP0805FT69K8 becomes the limiting accuracy component, introducing up to ±1% gain error in the analog chain. Design approaches include selecting resistor pairs from the same manufacturing batch for the RMCP0805FT69K8 to maintain ratio accuracy, or accepting the ±1% specification and compensating through firmware calibration in digitized signal paths.
Why is the 0805 package size of the RMCP0805FT69K8 preferred over 0603 in automotive engine bay designs?
The RMCP0805FT69K8's 0805 form factor (2.00mm × 1.25mm) provides measurable advantages over 0603 packages in high-vibration environments. Larger solder pad geometry reduces stress concentration during thermal cycling and mechanical shock, lowering solder joint fatigue failures. At 0.333W power rating, the RMCP0805FT69K8 also dissipates heat over greater surface area than equivalent 0603 thick-film designs, reducing localized board temperature rise. Under engine bay conditions with ambient temperatures approaching 125°C, the improved thermal dissipation of the RMCP0805FT69K8 extends component life and reduces parametric drift. Manufacturability improves as well—0805 pads accommodate typical automotive assembly tolerances more forgivingly than 0603, reducing rework rates in high-volume production.
What is the practical current limit when using the RMCP0805FT69K8 in voltage divider networks?
The RMCP0805FT69K8's 0.333W rating at maximum operating temperature (155°C) establishes a theoretical current limit of approximately 2.17mA under DC conditions. However, practical design should operate at 50–60% of rated power to maintain component reliability and manage temperature rise on the PCB. This means typical operating current through the RMCP0805FT69K8 in a voltage divider should stay below 1.3mA. In high-impedance biasing networks for sensors or ADC inputs, this constraint is rarely reached. However, in pull-up or pull-down configurations on digital logic lines or precision measurement circuits, designers must verify actual current draw. For example, a 5V to 3.3V logic-level conversion using the RMCP0805FT69K8 as the pull-down element requires calculation to ensure dissipation remains within safe operating margins.
How does the temperature coefficient of the RMCP0805FT69K8 (±100ppm/°C) impact long-term circuit performance across automotive temperature ranges?
The RMCP0805FT69K8's ±100ppm/°C temperature coefficient produces a total resistance change of approximately ±14 ppm per degree Celsius. Across the full -55°C to 155°C automotive operating range, total drift reaches ±1.4%, which combines additively with the ±1% manufacturing tolerance. In precision applications like sensor signal conditioning or feedback networks in power management circuits, this temperature-dependent drift must be accounted for. Designs using the RMCP0805FT69K8 in ratio-critical applications (such as precision feedback dividers) benefit from pairing two RMCP0805FT69K8 resistors from the same manufacturing lot, which ensures their temperature coefficients track closely, partially canceling drift. In single-resistor applications, temperature compensation through reference networks or digital calibration may be necessary for circuits requiring better than ±2% performance stability over temperature.
Can the RMCP0805FT69K8 be used in high-frequency RF or signal integrity applications?
The RMCP0805FT69K8 is a thick-film resistor optimized for DC and low-frequency operation. Its frequency response characteristics are not specified in automotive-grade datasheets, but thick-film construction inherently exhibits parasitic inductance and capacitance. At frequencies above a few hundred kilohertz, the RMCP0805FT69K8 introduces impedance variations and potential signal distortion. For RF biasing, termination, or high-speed digital applications, thin-film resistor alternatives provide superior high-frequency performance. The RMCP0805FT69K8 remains suitable for DC biasing networks, analog low-pass filter implementations, and general power management applications where signal bandwidth is limited to DC–100kHz ranges typical in automotive sensor and control circuits.
What are the moisture and soldering reliability concerns specific to the RMCP0805FT69K8 in potted or underfilled module assemblies?
The RMCP0805FT69K8 carries MSL 1 rating, indicating unlimited moisture sensitivity and no shelf-life restrictions. This eliminates moisture-induced failures commonly seen in higher MSL components when exposed to humidity before reflow soldering. However, potting or underfilling compounds can apply mechanical stress to the RMCP0805FT69K8 leads during thermal cycling. Thick-film resistors like the RMCP0805FT69K8 are more brittle than thin-film types, making them susceptible to cracking under cyclic stress from differential thermal expansion. Design practices include ensuring the RMCP0805FT69K8 placement avoids areas of maximum mechanical stress, using soft potting compounds with lower modulus, or positioning the component to allow stress relief. AEC-Q200 qualification of the RMCP0805FT69K8 includes testing under these conditions, but field assembly environments (potting outside controlled conditions) may not replicate test parameters.
How should the RMCP0805FT69K8 be selected when designing voltage dividers for ADC input scaling in automotive sensor interfaces?
The RMCP0805FT69K8's ±1% tolerance and ±100ppm/°C temperature coefficient make it suitable for ADC input scaling where absolute accuracy is managed through firmware calibration. A typical sensor interface dividing a 0–12V signal to 0–3.3V range would use the RMCP0805FT69K8 as one element in a ratio pair. The combined tolerance and temperature drift (approximately ±2% across temperature) align well with modern automotive ADC accuracy capabilities (10–12 bit resolution, ±0.5–1% linearity). To optimize the RMCP0805FT69K8 selection, pair it with a second resistor from the same manufacturer lot and manufacturing date code to ensure temperature coefficient matching. Verify that total voltage across the RMCP0805FT69K8 does not exceed safe operating limits under fault conditions; for a 69.8 kΩ resistor, dissipation approaches rated limits at approximately 150V DC, well above typical automotive circuit voltages.
What design considerations apply when using multiple RMCP0805FT69K8 resistors in series for high-voltage applications?
Stacking RMCP0805FT69K8 resistors in series for high-voltage applications distributes voltage stress and thermal load. Each RMCP0805FT69K8 can safely handle voltages up to the point where power dissipation approaches 0.333W. Connecting multiple units in series multiplies the total resistance (two RMCP0805FT69K8 in series yields 139.6 kΩ) while distributing dissipation across components. However, tolerance stacking becomes significant—two RMCP0805FT69K8 resistors with ±1% tolerance produce combined tolerance of approximately ±1.4% due to independent variation. In precision voltage divider or bias networks requiring matched resistance, this tolerance stacking necessitates selection of paired components or post-assembly trimming. Thermal management improves with series configurations since current (and thus heat per unit) remains constant while distributed across multiple packages.
How does the RMCP0805FT69K8 compare to film or wirewound alternatives for precision measurement circuits?
The RMCP0805FT69K8 is a thick-film resistor offering standard ±1% tolerance and ±100ppm/°C drift. Thin-film resistors provide superior accuracy (±0.1% or better) and lower temperature coefficients (±25ppm/°C typical), but are significantly more expensive and often limited to smaller package geometries. Wirewound resistors deliver excellent precision and low temperature coefficients but introduce parasitic inductance problematic for AC applications or high-frequency circuits. For automotive sensor signal conditioning where firmware calibration is standard practice, the RMCP0805FT69K8 offers excellent cost-to-performance balance. In applications requiring better than ±1% absolute accuracy without calibration, thin-film resistors justify the cost premium. The RMCP0805FT69K8 is the pragmatic choice for production-volume automotive designs where design-in simplicity, availability, and cost control are balanced against moderate precision requirements.
What is the expected lifespan and failure rate of the RMCP0805FT69K8 under continuous automotive operating conditions?
The RMCP0805FT69K8 datasheet does not publish explicit failure rate figures, but AEC-Q200 qualification includes accelerated life testing at elevated temperatures (typically 155°C junction temperature) over 1,000 hours with minimal resistance shift. Field data from automotive applications suggests thick-film resistors like the RMCP0805FT69K8 exhibit very low failure rates when operated below 70% of rated power and within specified temperature ranges. Failure mechanisms in automotive service typically involve mechanical stress (vibration-induced solder joint cracking) rather than resistive element degradation. The RMCP0805FT69K8's design life in typical automotive modules (engine control units, transmission electronics) extends beyond 10 years under normal operating conditions. Accelerated aging studies show resistance drift of less than ±0.5% over 10 years at 125°C continuous operation, suggesting the RMCP0805FT69K8 will maintain functional performance throughout vehicle service life if mechanical integrity is preserved.
Why should the RMCP0805FT69K8 be stored with specific moisture and temperature controls before assembly?
Although the RMCP0805FT69K8 carries MSL 1 rating (unlimited shelf life), storage conditions still affect solder joint reliability. Thick-film resistors like the RMCP0805FT69K8 are manufactured with nickel-chrome resistive elements and terminations that can oxidize over time in high-humidity environments. Storage at room temperature (20–25°C) and low relative humidity (below 60%) preserves termination plating quality and ensures optimal solder wetting during reflow. The RMCP0805FT69K8's gold or silver terminations are less susceptible to corrosion than base-metal alternatives, but extended storage in high-humidity conditions can still compromise solderability. If the RMCP0805FT69K8 has been stored in humid environments or above 40°C, baking at 110–125°C for 2–4 hours before assembly removes absorbed moisture from the component substrate, preventing solder-joint voids and ensuring long-term mechanical integrity in potted or thermal-cycled applications.

Parts with Similar Specifications

The three parts on the right have similar specifications to Stackpole Electronics Inc RMCP0805FT69K8

Product Attribute RMCP0805FT6K80 RMCP0805FT69R8 RMCP0805FT6K81 RMCP0805FT698K
Part Number RMCP0805FT6K80 RMCP0805FT69R8 RMCP0805FT6K81 RMCP0805FT698K
Manufacturer Stackpole Electronics Inc Stackpole Electronics Inc Stackpole Electronics Inc Stackpole Electronics Inc
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Power (Watts) - - - -
Temperature Coefficient - - - -
Failure Rate - - - -
Height - Seated (Max) - - - -
Resistance - - - -
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Size / Dimension - - - -
Features - - - Simultaneous Sampling
Composition - - - -
Tolerance - - - -
Number of Terminations - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Ratings - - - -

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RMCP0805FT69K8 Image

RMCP0805FT69K8

Stackpole Electronics Inc
98D-RMCP0805FT69K8

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