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Home Products Resistors Chip Resistor - Surface Mount~~RNCF1210BTE1K33~~

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RNCF1210BTE1K33 - Stackpole Electronics Inc

Manufacturer Part Number: RNCF1210BTE1K33

Manufacturer: Stackpole Electronics, Inc.

Allelco Part Number: 98D-RNCF1210BTE1K33

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 32,511 pcs available, New & Original

Parts Description: RES 1.33K OHM 0.1% 1/3W 1210

Package: 1210

Data sheet: RNCF1210BTE1K33.pdf

Datasheets
RNCF Series Datasheet.pdf

Environmental Information
California Prop 65.pdf Stackpole REACH.pdf Stackpole RoHS Series List.pdf

RoHs Status: ROHS3 Compliant

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In stock: 32511

Unit Price: $0.173
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Specifications

RNCF1210BTE1K33 Tech Specifications
Stackpole Electronics Inc - RNCF1210BTE1K33 technical specifications, attributes, parameters and parts with similar specifications to Stackpole Electronics Inc - RNCF1210BTE1K33

Product Attribute	Attribute Value
Manufacturer	Stackpole Electronics, Inc.
Tolerance	±0.1%
Temperature Coefficient	±25ppm/°C
Supplier Device Package	1210
Size / Dimension	0.122" L x 0.094" W (3.10mm x 2.40mm)
Series	RNCF
Resistance	1.33 kOhms
Ratings	AEC-Q200
Power (Watts)	0.333W, 1/3W

Product Attribute	Attribute Value
Package / Case	1210 (3225 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	Thin Film
Base Product Number	RNCF1210B

Environmental & Export Classifications

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

Frequently Asked Questions(FAQ)

What makes the RNCF1210BTE1K33 suitable for automotive applications compared to standard thin film resistors?: The RNCF1210BTE1K33 carries AEC-Q200 automotive qualification, which certifies it has passed stress testing for thermal cycling, mechanical shock, and humidity exposure across the -55°C to 155°C operating range. This qualification is mandatory for under-hood and high-reliability automotive circuits. The ±0.1% tolerance and ±25ppm/°C temperature coefficient ensure stable performance in engine compartments where ambient temperature swings 100°C or more during normal operation. Standard commercial thin film resistors typically lack this validation pathway and may drift or fail prematurely in thermal cycling conditions typical of automotive powertrains and safety systems.

How does the ±0.1% tolerance of the RNCF1210BTE1K33 affect precision analog circuit design?: The RNCF1210BTE1K33 tolerance of ±0.1% means the actual resistance value will fall between 1.327 kΩ and 1.333 kΩ. This tight tolerance is critical in precision applications like analog-to-digital converter input networks, sensor signal conditioning, and feedback resistor dividers where tolerance stack-up directly impacts measurement accuracy. For example, in a two-resistor divider scaling a sensor output, using the RNCF1210BTE1K33 with ±0.1% tolerance instead of ±1% resistors reduces divider output error from ±1.4% to ±0.14% across manufacturing lots. This eliminates the need for calibration potentiometers or post-manufacturing trimming in many instrumentation designs.

What is the power dissipation headroom when using the RNCF1210BTE1K33 in a 5V circuit?: The RNCF1210BTE1K33 is rated for 0.333W continuous dissipation. At 5V across 1.33 kΩ, the steady-state current is 3.76 mA, producing 18.8 mW of dissipation—well below the 333 mW rating. This leaves substantial margin for transient overcurrent events and ambient temperature elevation. However, the margin shrinks in high-temperature environments; at 155°C operating limit, the RNCF1210BTE1K33 derate curve typically reduces safe power handling by 30–50% depending on circuit board copper area and airflow. In confined PCB layouts with limited thermal dissipation, actual safe power at elevated temperature may be only 150–200 mW, requiring verification through thermal simulation or derating charts.

How does the RNCF1210BTE1K33 compare to a 1/4W metal film resistor in terms of size and reliability?: The RNCF1210BTE1K33 in 1210 (3.10mm × 2.40mm) form factor is significantly smaller than a 0.25W axial metal film resistor (typically 6–9mm long). For SMD assembly, the RNCF1210BTE1K33 enables higher component density and automated pick-and-place compatibility, reducing assembly cost and defect rates. Regarding reliability, the RNCF1210BTE1K33 thin film technology exhibits superior frequency response (stable at frequencies up to gigahertz range) and lower noise than metal film, making it preferred for high-speed signal paths. However, metal film resistors excel in pulse handling and cost at lower tolerances; they are not AEC-Q200 qualified, so they are unsuitable for automotive use cases where the RNCF1210BTE1K33 is specified.

Why does the RNCF1210BTE1K33 require MSL1 moisture sensitivity handling instead of moisture-sealed packaging?: The RNCF1210BTE1K33 carries MSL1 (Moisture Sensitivity Level 1), meaning it has unlimited floor-life tolerance and requires no special moisture handling during storage or assembly. This is a strength, not a limitation: the thick-film hybrid construction and robust termination of the RNCF1210BTE1K33 resist moisture absorption, eliminating the need for dry-pack storage, desiccant bags, or bake-out procedures before reflow. This simplifies supply chain logistics and reduces waste from expired MSL control periods. Standard ceramic or thin film resistors at higher MSL levels (2–5) incur hidden costs through moisture reels, controlled-storage requirements, and potential yield loss if floor-life is exceeded.

What causes the ±25ppm/°C temperature coefficient to matter in DC precision circuits with the RNCF1210BTE1K33?: The RNCF1210BTE1K33 temperature coefficient of ±25ppm/°C translates to a 0.0025% resistance change per degree Celsius. In a bridge circuit or precision divider operating over a 100°C temperature range, the RNCF1210BTE1K33 will experience up to 0.25% drift—comparable to its tolerance band. This can push combined tolerance and temperature drift to ±0.35%, exceeding design margins. Designs requiring sub-0.1% accuracy across temperature must either use temperature-compensated reference networks or select matched pairs of RNCF1210BTE1K33 units from the same manufacturing batch to minimize relative drift. Alternatively, active trimming or software calibration can compensate for the known RNCF1210BTE1K33 temperature behavior.

How does the 1210 package size of the RNCF1210BTE1K33 affect circuit board thermal management and layout?: The RNCF1210BTE1K33 in 1210 package (3.10mm × 2.40mm) presents a modest footprint but concentrated power dissipation in a small area. When dissipating near its 333 mW rating, the RNCF1210BTE1K33 generates localized heat that can raise PCB surface temperature 20–40°C above ambient, depending on copper area and layer stackup. Layout placement matters: positioning the RNCF1210BTE1K33 away from temperature-sensitive components (op-amps, voltage references) and beneath thermal planes or copper pours reduces thermal crosstalk. In high-density designs, thermal simulation should verify that junction temperature of nearby ICs does not exceed safe limits when the RNCF1210BTE1K33 operates at full power.

Is the RNCF1210BTE1K33 suitable for RF or high-frequency signal conditioning?: Yes, the RNCF1210BTE1K33 thin film construction exhibits excellent high-frequency performance with minimal inductance and stable impedance up to several gigahertz, making it suitable for RF termination, bias networks, and impedance matching. The ±0.1% tolerance ensures predictable impedance matching accuracy for 50Ω and 75Ω transmission lines. However, the RNCF1210BTE1K33 is not a wirewound or chip inductor; it is purely resistive with negligible parasitic inductance. For broadband RF circuits, the RNCF1210BTE1K33 should be paired with surface-mount capacitors using via stitching to suppress return path inductance and prevent impedance resonances in the target frequency band.

What is the expected lifetime of the RNCF1210BTE1K33 under continuous 155°C operation?: The RNCF1210BTE1K33 does not publish a specific MTBF (mean time between failures) rating, but thin film resistors under Stackpole's AEC-Q200 qualification typically demonstrate failure rates below 50 FIT (failures per billion hours) at rated power and 125°C. At the upper limit of 155°C continuous operation, failure rate increases exponentially due to accelerated electromigration and material degradation. Practical design practice is to operate the RNCF1210BTE1K33 at no more than 70% of rated power at 155°C and to use derating curves from the datasheet to verify safe operating points. In safety-critical automotive applications, redundancy, current-limiting design, or thermal shutdown circuits should protect against the RNCF1210BTE1K33 open-circuit or parametric drift scenarios.

How should the RNCF1210BTE1K33 be specified in procurement to ensure consistent electrical performance across production lots?: Specifying the RNCF1210BTE1K33 by full part number (including the 'TE' temperature coefficient grade and 'B' tolerance code) ensures consistent ±25ppm/°C and ±0.1% performance. The base part number RNCF1210B allows alternative packaging codes; always include the tape-and-reel suffix (TR) if automated assembly is required. For high-volume automotive production, request material certifications confirming AEC-Q200 compliance and request samples from the intended manufacturing date code to verify that process or material changes do not shift the RNCF1210BTE1K33 temperature coefficient or tolerance. Distributors should be directed to maintain stock rotation and avoid mixing date codes, as thin film resistor characteristics can drift subtly with age and storage conditions.

Parts with Similar Specifications

The three parts on the right have similar specifications to Stackpole Electronics Inc RNCF1210BTE1K33

Product Attribute
Part Number	RNCF1210BTE1K37	RNCF1210BTE1K43	RNCF1210BTE1K13	RNCF1210BTE1K30
Manufacturer	Stackpole Electronics Inc	Stackpole Electronics Inc	Stackpole Electronics Inc	Stackpole Electronics Inc
Ratings	-	-	-	-
Power (Watts)	-	-	-	-
Tolerance	-	-	-	-
Resistance	-	-	-	-
Failure Rate	-	-	-	-
Temperature Coefficient	-	-	-	-
Composition	-	-	-	-
Series	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Height - Seated (Max)	-	-	-	-
Number of Terminations	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Size / Dimension	-	-	-	-
Features	-	-	-	Simultaneous Sampling

RNCF1210BTE1K33 Datasheet PDF

Download RNCF1210BTE1K33 pdf datasheets and Stackpole Electronics Inc documentation for RNCF1210BTE1K33 - Stackpole Electronics Inc.

Datasheets: RNCF Series Datasheet.pdf
Environmental Information: California Prop 65.pdf Stackpole REACH.pdf Stackpole RoHS Series List.pdf

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Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.
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Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.
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Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.
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Aug 31, 2026

Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.
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Aug 28, 2026

I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.
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Aug 20, 2026

one of my hobbies is skydiving. and when i'm skydiving this works great.
Ilen***

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This product works considerably well. It secretly improves my basketball by a lot.
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Great low-power MCU for portable equipment. Flash programming was simple and current consumption matched the datasheet.

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Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

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