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HomeProductsResistorsThrough Hole ResistorsRNC55H6813FSRE765
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RNC55H6813FSRE765 - Vishay Dale

Manufacturer Part Number
RNC55H6813FSRE765
Manufacturer
Dale / Vishay
Allelco Part Number
98D-RNC55H6813FSRE765
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
33,040 pcs available, New & Original
Parts Description
RES 681K OHM 1% 1/8W AXIAL
Package
Axial
Data sheet
-
RoHs Status
 
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In stock: 33040
  • Unit Price: $1.323
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $1.323 $1.32
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

RNC55H6813FSRE765 Tech Specifications
Vishay Dale - RNC55H6813FSRE765 technical specifications, attributes, parameters and parts with similar specifications to Vishay Dale - RNC55H6813FSRE765

Product Attribute Attribute Value
Manufacturer Dale / Vishay
Tolerance ±1%
Temperature Coefficient ±50ppm/°C
Supplier Device Package Axial
Size / Dimension 0.094" Dia x 0.250" L (2.39mm x 6.35mm)
Series Military, MIL-PRF-55182/01, RNC55
Resistance 681 kOhms
Power (Watts) 0.125W, 1/8W
Package / Case Axial
Product Attribute Attribute Value
Package Tape & Reel (TR)
Operating Temperature -65°C ~ 175°C
Number of Terminations 2
Height - Seated (Max) -
Features Military, Moisture Resistant, Weldable
Failure Rate S (0.001%)
Composition Metal Film
Base Product Number RNC55

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) Not Applicable
ECCN EAR99
HTSUS 8533.21.0090

Frequently Asked Questions(FAQ)

What thermal stability performance does the RNC55H6813FSRE765 provide across military temperature ranges, and how does the ±50ppm/°C coefficient impact circuit accuracy in extreme environments?
The RNC55H6813FSRE765 maintains a temperature coefficient of ±50ppm/°C across its -65°C to 175°C operating range, which translates to approximately ±34 ohms of resistance drift across the full 240°C span at 681 kOhms nominal value. In precision analog circuits operating near thermal extremes—such as military avionics or downhole instrumentation—this ±50ppm/°C specification means designers must account for roughly 0.005% resistance change per degree Celsius. For time-constant or filter applications where the RNC55H6813FSRE765 forms RC networks, cumulative drift in high-temperature transient conditions can shift cutoff frequencies by 1–3%. Military-grade metal film construction in the RNC55H6813FSRE765 achieves this stability through precision winding and laser trimming, making it suitable for feedback networks and reference dividers where civilian-grade components would introduce unacceptable measurement error.
How does the 1% tolerance specification of the RNC55H6813FSRE765 compare to tolerance requirements for ratiometric divider networks and transimpedance amplifier applications?
The ±1% tolerance of the RNC55H6813FSRE765 defines the initial resistance variation at 25°C before temperature and aging effects accumulate. In ratiometric divider networks—where output voltage depends on the ratio of two resistances—the RNC55H6813FSRE765 paired with a complementary 1% metal film resistor produces divider uncertainty of approximately ±1.4% (RSS of two ±1% tolerances), sufficient for 8-bit analog system architectures. For transimpedance amplifiers, the RNC55H6813FSRE765 functions as feedback element where 681 kOhms nominal sets transimpedance gain; 1% tolerance translates directly to ±1% gain variation across a production batch. Precision applications requiring <0.5% matching—such as instrumentation bridges or precision current-to-voltage conversion—typically demand matched resistor pairs or trimmer networks rather than relying on the RNC55H6813FSRE765 alone, though its metal film construction and military screening process provide substantially better tolerance than wirewound or carbon film alternatives.
What is the frequency response behavior of the RNC55H6813FSRE765 at high frequencies, and does parasitic inductance affect signal integrity in RF or high-speed switching applications?
The RNC55H6813FSRE765 exhibits the parasitic inductance typical of axial metal film resistors: approximately 0.5–1.2 nH per millimeter of lead length, with the 0.250" (6.35 mm) axial body contributing roughly 3–8 nH total self-inductance. This parasitic effect remains negligible below 10 MHz but becomes significant in RF circuits above 100 MHz. In switching power supplies operating at 500 kHz to 2 MHz—where the RNC55H6813FSRE765 might form part of a feedback network or sense element—the inductive reactance remains <0.01 ohms, introducing <0.002% magnitude error and negligible phase shift. However, in narrowband RF matching networks or high-Q resonant circuits, the RNC55H6813FSRE765 parasitic inductance can detune filters or introduce unwanted impedance shifts. For applications above 50 MHz, surface-mount thin-film resistors with <0.1 nH inductance are typically preferred over the RNC55H6813FSRE765 axial geometry, though the military-grade metal film construction of the RNC55H6813FSRE765 provides superior performance consistency compared to composition alternatives in thermal cycling and reliability stress.
Does the 0.125W power rating of the RNC55H6813FSRE765 provide adequate margin in current-sense and biasing applications, and how does ambient temperature derating affect practical power dissipation limits?
The RNC55H6813FSRE765 is rated for 0.125W continuous dissipation at 70°C ambient, with derating typically occurring at approximately 0.7–1.0 mW per degree Celsius above 70°C in still air. At 125°C (typical military operating temperature), the practical power limit for the RNC55H6813FSRE765 reduces to approximately 60–75 mW before thermal runaway risk increases. At 681 kOhms, this derating constraint means the RNC55H6813FSRE765 can safely sustain 20–25 µA continuous current at elevated temperature. In high-side current-sense networks biased at tens of microamperes—common in military power distribution monitoring—the RNC55H6813FSRE765 typically operates within margin; however, biasing resistor networks or pull-up arrays where several RNC55H6813FSRE765 elements operate in parallel near 100 µA per resistor can approach thermal limits at sustained high temperatures. Forced-air cooling or thermal interface management becomes necessary in sealed avionic enclosures, where junction temperatures can exceed the 0.125W safe operating point if airflow is restricted. The metal film construction of the RNC55H6813FSRE765 provides better thermal contact to leads compared to carbon film, improving heat transfer efficiency.
How do the weldable terminations of the RNC55H6813FSRE765 perform in high-vibration and mechanical shock environments compared to soldered joints?
The RNC55H6813FSRE765 features solderable axial leads with weldable characteristics, indicating compatibility with ultrasonic or resistance welding processes used in military and aerospace assembly where solder joint fatigue is a reliability concern. Vibration-induced solder fatigue typically accelerates crack initiation at 0.5–2 mm solder fillet radii when boards experience 5–20 G peak acceleration across the component resonant frequency (typically 50–150 Hz for axial leaded resistors). The weldable construction of the RNC55H6813FSRE765 allows direct mechanical attachment to conductive substrates, eliminating solder interfaces and reducing vibration-induced failure modes by 10–50× in high-G shock applications. Military standards MIL-PRF-55182/01, which governs the RNC55H6813FSRE765 production, mandate vibration testing at 10–2000 Hz and mechanical shock qualification to 50 G peak, confirming reliability in rotorcraft and missile-borne electronics. However, in standard PCB assembly using standard reflow processes, the weldable designation of the RNC55H6813FSRE765 has minimal practical impact; the component tolerates conventional solder attachment without requiring special processing beyond standard wave or hand soldering.
What aging and drift characteristics should be expected from the RNC55H6813FSRE765 during extended field operation, particularly in thermal cycling stress?
Metal film resistors such as the RNC55H6813FSRE765 exhibit combined thermal cycling and moisture-driven drift typically quantified at 0.5–1.5% total after 1000 thermal cycles (-65°C to 175°C) under MIL-PRF-55182/01 qualification. The RNC55H6813FSRE765 moisture-resistant construction—including protective coating and hermetic lead sealing—reduces moisture ingress to <0.1% mass gain even after 500 hours at 85°C/85% RH, limiting hydrolysis-induced resistance change to <0.3%. In practice, the RNC55H6813FSRE765 demonstrates approximately 0.1–0.2% per 100 thermal cycles, accumulating to roughly ±0.5% over 25 years of typical military service life (assuming 2–4 thermal cycles annually in ground systems). This aging profile makes the RNC55H6813FSRE765 suitable for long-life reference networks where absolute accuracy must remain within ±2–3% over decades; however, precision measurement instruments requiring <0.1% long-term stability typically employ trimmer resistors or active compensation rather than relying solely on the RNC55H6813FSRE765. The military screening process for the RNC55H6813FSRE765 includes burn-in and environmental stress testing that identifies infant mortality failures before fielding, improving operational reliability.
Is the RNC55H6813FSRE765 suitable as a replacement for carbon film or wirewound resistors in existing military platforms, and what compatibility trade-offs should designers evaluate?
The RNC55H6813FSRE765 metal film construction provides superior temperature stability (±50ppm/°C), lower noise (<-30 dB relative to 1 V), and tighter tolerance (±1%) compared to carbon film alternatives, but exhibits higher cost and larger physical footprint (0.094" diameter × 0.250" length) than equivalent wirewound constructions. Direct substitution of the RNC55H6813FSRE765 into existing carbon film designs typically improves performance margins and reliability; however, the larger axial body may require PCB layout modification if original design used compact surface-mount footprints. Wirewound resistors—commonly used in military designs for high-temperature or high-power applications—exhibit superior noise immunity but introduce parasitic inductance (100–500 nH typical), problematic in high-frequency feedback or RF networks where the RNC55H6813FSRE765 inductive contribution remains <10 nH. Migration from wirewound to the RNC55H6813FSRE765 in feedback networks may require input filter modification to prevent oscillation. Qualification testing of the RNC55H6813FSRE765 as a drop-in replacement should verify functional performance across temperature extremes and include vibration margin assessment, particularly if original boards were designed for carbon film resonant frequency characteristics.
How does the RNC55H6813FSRE765 failure rate specification (S, 0.001%) translate to mean time between failures (MTBF) in typical military system architectures?
The failure rate designation S (0.001%) for the RNC55H6813FSRE765 corresponds to MIL-HDBK-217F predictions of approximately 1 failure per 100 million device-hours under standard operating conditions (25°C, 50% rated power dissipation). In a representative military avionics system incorporating 10,000 resistors—of which 200–400 might be 681 kOhm values—the collective MTBF contribution from RNC55H6813FSRE765 elements alone is approximately 250,000–500,000 system hours (roughly 28–57 years continuous operation). However, this calculation assumes constant failure rate and does not account for temperature derating, which increases failure rate by 2–5× when the RNC55H6813FSRE765 operates continuously at 150°C. In aerospace platforms where duty cycles include extended high-temperature exposure, effective MTBF may reduce to 50,000–100,000 hours. The RNC55H6813FSRE765 failure rate S specification provides quantified reliability data suitable for formal FMEA (Failure Modes and Effects Analysis) and design assurance documentation, typically required for DO-254 or MIL-HDBK-217 compliance verification in commercial and defense aviation programs.
What moisture sensitivity level (MSL) rating should engineers consider when specifying the RNC55H6813FSRE765 for applications with extended storage or exposure to high-humidity environments before installation?
The RNC55H6813FSRE765 carries MSL designation 'Not Applicable,' indicating that moisture sensitivity classification under IPC J-STD-033 does not apply to this component architecture. This designation reflects the axial leaded, through-hole construction and military-grade moisture-resistant coating of the RNC55H6813FSRE765, which prevents significant moisture absorption into the resistive element or internal structure. Unlike surface-mount components that require controlled humidity storage (MSL levels 1–6), the RNC55H6813FSRE765 can be stored in standard industrial environments (up to 85°C/85% RH) without time-based moisture absorption concerns or baking requirements before assembly. This characteristic makes the RNC55H6813FSRE765 advantageous for military logistics and depot maintenance environments where components may be stored for extended periods without active environmental controls. However, the RNC55H6813FSRE765 leads remain subject to oxidation during storage; protective conformal coating or periodic cleaning before soldering is recommended if components are stored beyond 2–3 years in tropical or corrosive-atmosphere conditions. The through-hole soldering process for the RNC55H6813FSRE765 (wave or hand solder) produces moisture exposure during thermal cycling that is minimal compared to lead-free reflow processes for surface-mount parts.
What design considerations apply to the RNC55H6813FSRE765 when used in precision analog-to-digital converter (ADC) front-end networks, particularly regarding linearity and integral nonlinearity (INL)?
The RNC55H6813FSRE765 metal film construction and ±1% tolerance enable ADC front-end applications where resistive divider networks set reference or input scaling, with contribution to overall system INL of approximately ±0.5–1.0% from resistance tolerance alone. In 12-bit ADC systems (0.024% LSB nominal), the RNC55H6813FSRE765 tolerance occupies roughly 40–80 LSB of error budget, requiring careful attention to ratiometric architecture and trimmer adjustment. The temperature coefficient (±50ppm/°C) contributes approximately ±12 ppm per degree deviation from 25°C, translating to ±0.3 LSB per degree in a 12-bit ratiometric measurement spanning a 3.3V reference. For high-accuracy systems requiring <10 ppm/°C drift, the RNC55H6813FSRE765 may require active temperature compensation or supplementation with precision trimmer networks. The noise performance of the RNC55H6813FSRE765 (noise index <-30 dB/V) contributes negligibly to ADC front-end thermal noise budgets; thermal noise from the 681 kOhm resistance itself dominates at approximately 32 µV RMS across 1 MHz bandwidth, requiring input filtering or averaging when ADC resolution exceeds 14 bits. Impedance matching between the RNC55H6813FSRE765 and ADC input structure (typically 1–100 MΩ) ensures minimal loading effects; the RNC55H6813FSRE765 input impedance remains essentially equal to its nominal 681 kOhm value across DC and low-frequency AC measurements.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vishay Dale RNC55H6813FSRE765

Product Attribute RNC55H6813FSRE565 RNC55H6813FSRE665 RNC55H6813FSRE865 RNC55H6813FSRE5
Part Number RNC55H6813FSRE565 RNC55H6813FSRE665 RNC55H6813FSRE865 RNC55H6813FSRE5
Manufacturer Vishay Dale Vishay Dale Vishay Dale Vishay Dale
Features - - - Simultaneous Sampling
Number of Terminations - - - -
Failure Rate - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Composition - - - -
Power (Watts) - - - -
Series - - - -
Tolerance - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Size / Dimension - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Resistance - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Height - Seated (Max) - - - -
Temperature Coefficient - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

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RNC55H6813FSRE765 Image

RNC55H6813FSRE765

Vishay Dale
98D-RNC55H6813FSRE765

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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