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HomeProductsResistorsChip Resistor - Surface MountRN73R2ETTD2841F25
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RN73R2ETTD2841F25 - KOA Speer Electronics, Inc.

Manufacturer Part Number
RN73R2ETTD2841F25
Manufacturer
KOA Speer Electronics, Inc.
Allelco Part Number
98D-RN73R2ETTD2841F25
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
47,077 pcs available, New & Original
Parts Description
RESISTOR THIN FILM 1210 SIZE 1%
Package
1210
Data sheet
RN73R2ETTD2841F.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 47077
  • Unit Price: $0.151
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.151 $0.15
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

RN73R2ETTD2841F25 Tech Specifications
KOA Speer Electronics, Inc. - RN73R2ETTD2841F25 technical specifications, attributes, parameters and parts with similar specifications to KOA Speer Electronics, Inc. - RN73R2ETTD2841F25

Product Attribute Attribute Value
Manufacturer KOA Speer Electronics, Inc.
Tolerance ±1%
Temperature Coefficient ±25ppm/°C
Supplier Device Package 1210
Size / Dimension 0.126" L x 0.098" W (3.20mm x 2.50mm)
Series RN73R
Resistance 2.84 kOhms
Ratings AEC-Q200
Power (Watts) 0.25W, 1/4W
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) 0.028" (0.70mm)
Features Automotive AEC-Q200, Moisture Resistant
Composition Thin Film
Base Product Number RN73R2E

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 RN73R2ETTD2841F25 suitable for automotive applications versus standard industrial resistors?
The RN73R2ETTD2841F25 carries AEC-Q200 qualification, which requires compliance with automotive reliability standards including thermal cycling, humidity resistance, and extended operating range validation. The combination of ±1% tolerance, ±25ppm/°C temperature coefficient, and moisture-resistant thin film construction ensures stable 2.84 kOhm performance across the -55°C to 155°C automotive temperature envelope. Standard industrial resistors typically lack this environmental validation and humidity resistance, making them unsuitable for underhood or high-vibration automotive environments where the RN73R2ETTD2841F25 is designed to operate.
How does the 0.25W power rating of the RN73R2ETTD2841F25 constrain circuit design in high-current sensing applications?
The RN73R2ETTD2841F25 dissipates maximum 0.25W continuously, which at 2.84 kOhms yields a safe operating current of approximately 9.4mA under worst-case conditions. For current-sensing circuits, this limits practical sensing to sub-10mA applications; higher current paths would require parallel-resistor configurations or lower resistance values. Designers must account for transient current spikes, as the RN73R2ETTD2841F25 lacks active pulse-handling specs beyond its steady-state rating. In contrast, larger package resistors (1812 or 2512) offer 0.5W or higher, doubling headroom for sensing networks without layout redesign.
Why does the RN73R2ETTD2841F25 maintain ±1% tolerance across full temperature range while many 1210 resistors drift beyond specification?
The RN73R2ETTD2841F25 achieves stable tolerance through thin-film construction, which produces more uniform resistive material than thick-film rivals. The ±25ppm/°C temperature coefficient means a 100°C swing induces only ±0.25% drift from nominal 2.84 kOhms, well within the ±1% tolerance budget. Thick-film 1210 resistors typically exhibit ±100ppm/°C or higher, compounding to ±1% drift alone across automotive temperature ranges. This stability makes the RN73R2ETTD2841F25 suitable for precision analog circuits—voltage dividers, filter networks, timing references—where cumulative tolerance stack-up would otherwise violate system specifications.
What is the difference between the RN73R2ETTD2841F25 moisture resistance and standard MSL-3 resistors in humid automotive storage?
The RN73R2ETTD2841F25 is rated MSL-1 (Unlimited moisture sensitivity level), meaning it can be stored or transported indefinitely without drying ovens or desiccant packaging. Standard industrial resistors often carry MSL-3 ratings, requiring moisture baking before soldering and restricting shelf life after packaging opening. In automotive supply chains with extended inventory cycles or humid warehouse conditions, the RN73R2ETTD2841F25 eliminates reflow failures caused by popcorning (vapor-induced substrate fracture). This reduces rework and qualification risk, particularly in contract manufacturing environments where MSL-3 compliance adds measurable operational overhead.
Can the RN73R2ETTD2841F25 replace 1206-size resistors in space-constrained PCB designs?
The RN73R2ETTD2841F25 uses a 1210 (3225 metric) package measuring 3.20mm × 2.50mm, which is larger in both length and width than a 1206 (3.2mm × 1.6mm). Lateral space constraints make direct substitution impossible without routing redesign. However, the RN73R2ETTD2841F25's 0.28-inch length and 0.098-inch width may fit in layouts originally designed for 0805 or smaller resistors if mounting density is not critical. Conversely, if a 1210 footprint already exists, upgrading from a 1206 2.84 kOhm resistor to the RN73R2ETTD2841F25 gains the AEC-Q200 rating and improved tolerance without functional risk.
How does the ±25ppm/°C specification of the RN73R2ETTD2841F25 affect precision analog filter cutoff frequency stability?
In an RC low-pass filter using the RN73R2ETTD2841F25 with a matched capacitor, the 2.84 kOhm resistance drifts ±0.25% over a 100°C excursion due to ±25ppm/°C coefficient. The cutoff frequency f_c = 1/(2πRC) scales directly with R, so a 0.25% resistance change produces a 0.25% frequency shift. For a nominal 10 kHz filter, this represents a ±25 Hz drift—often acceptable for anti-alias or noise-rejection stages. Capacitors with 5–10% temperature coefficients typically dominate system drift, but the RN73R2ETTD2841F25 ensures resistive contribution remains negligible, enabling predictable filter performance across -55°C to 155°C automotive operating range without secondary trimming networks.
What reflow and thermal-shock robustness should be expected from the RN73R2ETTD2841F25 in engine-bay mounting locations?
AEC-Q200 qualification of the RN73R2ETTD2841F25 mandates validation through thermal-shock cycles (-40°C to +155°C, typically 15 cycles minimum) and highly accelerated life testing (HALT) profiles. The 0.70mm seated height and robust thin-film adhesion minimize flex-induced solder-joint fatigue compared to thicker resistors. Engine-bay underhood environments subject the RN73R2ETTD2841F25 to continuous thermal cycling (diurnal swings of 80–100°C) plus vibration; the combination tests solder integrity and internal element bond strength. While the RN73R2ETTD2841F25 is qualified for these stresses, designs should avoid routing high-vibration traces directly under the component and maintain 0.125-inch minimum clearance from high-temperature sources (exhaust runners) to prevent localized overheat beyond the rated 155°C maximum.
How should the RN73R2ETTD2841F25 be selected versus thin-film metal-film alternatives in precision DC bias networks?
The RN73R2ETTD2841F25 and comparable metal-film resistors both achieve ±1% tolerance and ±25ppm/°C stability in 1210 packages. Metal-film devices often exhibit slightly lower noise (typically <10µV/V vs. 5µV/V for thin-film), but practical circuit noise is usually dominated by downstream amplifiers or reference voltages in automotive applications. The RN73R2ETTD2841F25 distinguishes itself through explicit AEC-Q200 automotive qualification and moisture resistance (MSL-1), whereas metal-film alternatives commonly carry industrial ratings only. For non-automotive precision networks, metal-film resistors may offer cost advantages; automotive and safety-critical circuits benefit from the RN73R2ETTD2841F25's validated reliability pedigree.
What soldering profile and rework procedures optimize long-term reliability for the RN73R2ETTD2841F25 in production?
The RN73R2ETTD2841F25 withstands standard lead-free reflow profiles (peak 260°C, time above 217°C ≤60 seconds) without degradation. The 0.70mm maximum seated height and 2-termination design provide excellent solder-joint accessibility and minimize thermal gradients during reflow. Rework is feasible with localized hot-air rework tools (320–350°C, 30–45 seconds) if performed no more than twice per component. Repeated thermal cycling during rework stresses the resistive element and solder interface; beyond two rework cycles, the RN73R2ETTD2841F25 should be replaced to maintain AEC-Q200 compliance. IPC-A-610 Class 2 soldering requirements (fillet inspections, no voids exceeding 25% of joint area) ensure long-term reliability in automotive duty cycles.
Does the RN73R2ETTD2841F25 require derating for continuous operation near 155°C upper limit?
The RN73R2ETTD2841F25 is rated 0.25W at 70°C ambient, with no explicit derating curve provided in most datasheets. At 155°C, practical thermal headroom is significantly reduced; assuming linear derating approximation, usable power drops to roughly 0.15W or less at upper-temperature limit. Circuit designs should avoid sustained power dissipation near 0.25W in underhood locations where ambient temperature approaches 125–155°C. Instead, use the RN73R2ETTD2841F25 in signal paths, bias networks, or low-power sensing (milliwatt range) at elevated temperatures. Critical high-current applications should employ larger packages (1812) or parallel configurations of multiple RN73R2ETTD2841F25 units to maintain margin and ensure long-term reliability under stress.
How do RoHS3 and REACH compliance of the RN73R2ETTD2841F25 simplify automotive supply-chain documentation?
The RN73R2ETTD2841F25 carries RoHS3 (lead-free, halogen-free) and REACH Unaffected status, eliminating need for exemption requests or substance declarations in EU and North American automotive supply chains. OEMs and Tier-1 suppliers avoid material compliance audits and can use the RN73R2ETTD2841F25 directly in platforms targeting worldwide markets without dual-sourcing or redesign. ECCN EAR99 classification confirms non-regulated status for export purposes, simplifying logistics. Competitors lacking REACH certification often require case-by-case environmental review, adding procurement delays. The RN73R2ETTD2841F25's pre-certified status accelerates design approval and reduces time-to-market for new automotive control modules and sensor interfaces.
What failure modes should be monitored during accelerated life testing of circuits using the RN73R2ETTD2841F25?
Primary degradation mechanisms for the RN73R2ETTD2841F25 include resistance drift (typically <1% over 1000 hours at rated conditions), solder-joint fatigue under thermal cycling, and moisture-induced substrate cracking in high-humidity environments (mitigated by MSL-1 rating). AEC-Q200 testing monitors resistance shift using 4-point measurement at 0%, 50%, and 100% of HALT duration; acceptable limits are ±3% from baseline. Secondary failures occur if the RN73R2ETTD2841F25 is thermally or mechanically overstressed beyond datasheet limits—solder-joint cracking manifests as intermittent open-circuit faults in production units exposed to excess vibration. End-of-life designs should include redundancy (dual-path bias networks) or monitoring (parametric test points) to catch RN73R2ETTD2841F25 degradation before system failure.

Parts with Similar Specifications

The three parts on the right have similar specifications to KOA Speer Electronics, Inc. RN73R2ETTD2841F25

Product Attribute RN73R2ETTD2841C25 RN73R2ETTD2841F50 RN73R2ETTD2841D25 RN73R2ETTD2842B50
Part Number RN73R2ETTD2841C25 RN73R2ETTD2841F50 RN73R2ETTD2841D25 RN73R2ETTD2842B50
Manufacturer KOA Speer Electronics, Inc. KOA Speer Electronics, Inc. KOA Speer Electronics, Inc. KOA Speer Electronics, Inc.
Resistance - - - -
Size / Dimension - - - -
Series - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Composition - - - -
Power (Watts) - - - -
Height - Seated (Max) - - - -
Ratings - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Features - - - Simultaneous Sampling
Temperature Coefficient - - - -
Number of Terminations - - - -
Tolerance - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

RN73R2ETTD2841F25 Datasheet PDF

Download RN73R2ETTD2841F25 pdf datasheets and KOA Speer Electronics, Inc. documentation for RN73R2ETTD2841F25 - KOA Speer Electronics, Inc..

Datasheets
RN73R Type Thin Film Datasheet.pdf
HTML Datasheet
RN73R Type Thin Film Datasheet.pdf

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    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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RN73R2ETTD2841F25 Image

RN73R2ETTD2841F25

KOA Speer Electronics, Inc.
98D-RN73R2ETTD2841F25

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