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Home Products Resistors Through Hole Resistors~~RNR55H2260BSRE6~~

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RNR55H2260BSRE6 - Vishay Dale

Manufacturer Part Number: RNR55H2260BSRE6

Manufacturer: Dale / Vishay

Allelco Part Number: 98D-RNR55H2260BSRE6

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 38,890 pcs available, New & Original

Parts Description: RES 226 OHM 1/8W .1% AXIAL

Package: Axial

Data sheet: RNR55H2260BSRE6.pdf

Datasheets
ERC (Military RNC/RNR) Series.pdf

RoHs Status

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Specifications

RNR55H2260BSRE6 Tech Specifications
Vishay Dale - RNR55H2260BSRE6 technical specifications, attributes, parameters and parts with similar specifications to Vishay Dale - RNR55H2260BSRE6

Product Attribute	Attribute Value
Manufacturer	Dale / Vishay
Tolerance	±0.1%
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, RNR55
Resistance	226 Ohms
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
Failure Rate	S (0.001%)
Composition	Metal Film
Base Product Number	RNR55

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 makes the RNR55H2260BSRE6 suitable for precision measurement circuits where 0.1% tolerance is required?: The RNR55H2260BSRE6 achieves ±0.1% tolerance through metal film construction, which provides superior stability compared to carbon composition resistors. At 226 Ohms, this tolerance translates to a resistance range of 225.774–226.226 Ohms, enabling designers to build measurement dividers, calibration networks, and gain-setting circuits without requiring post-trim adjustments. The ±50ppm/°C temperature coefficient further stabilizes performance across the -65°C to 175°C military operating range, making the RNR55H2260BSRE6 suitable for sensor conditioning and data acquisition front-ends where initial accuracy directly impacts system measurement uncertainty.

How does the RNR55H2260BSRE6 perform in high-reliability applications compared to commercial-grade resistors?: The RNR55H2260BSRE6 is manufactured to MIL-PRF-55182/01 standards with a 0.001% failure rate (S-level), which is 100–1000 times lower than typical commercial resistors rated at 0.1% per 1000 hours. This military-grade reliability comes from moisture-resistant construction, rigorous screening, and extended thermal cycling validation. For airborne, space, and defense applications, the RNR55H2260BSRE6 eliminates the need for derating calculations and redundancy that would otherwise be required with commercial components, reducing system-level risk in mission-critical signal paths.

Why is the 1/8W (0.125W) power rating appropriate for low-level signal conditioning, and what dissipation margins exist?: At 226 Ohms, the RNR55H2260BSRE6 can safely pass approximately 23.6 mA at full rated power before thermal stress becomes a design concern. In practical signal chains—such as transimpedance amplifier feedback networks or input dividers—actual current typically remains in the 1–10 mA range, leaving substantial margin. The 1/8W rating also ensures that the RNR55H2260BSRE6 operates well below the thermal runway threshold that would accelerate aging in precision thin-film resistors, preserving tolerance and temperature coefficient over decades of service in military and aerospace systems.

Can the RNR55H2260BSRE6 replace a carbon film resistor in an existing PCB layout, and what design considerations apply?: The RNR55H2260BSRE6 uses the same axial through-hole package format (0.094" diameter × 0.250" length) as most carbon film resistors rated 1/4W or smaller, making mechanical substitution straightforward. However, electrical behavior differs significantly: the RNR55H2260BSRE6 exhibits lower noise (typically <15 µV/V), negligible 1/f noise, and stable performance under high-frequency AC signals, whereas carbon film exhibits broadband noise that can degrade SNR in analog front-ends. If the original design operates below 10 kHz and does not stress tolerance or stability, a simple substitution may work; for precision or RF-coupled stages, re-qualification is necessary because the RNR55H2260BSRE6 may reveal previously masked signal-chain limitations.

What is the moisture sensitivity of the RNR55H2260BSRE6 in humid or salt-spray environments?: The RNR55H2260BSRE6 is designated as moisture-resistant, with no formal MSL (Moisture Sensitivity Level) assigned because military specifications assume conformal coating or potting in deployed systems. Bare RNR55H2260BSRE6 resistors exhibit superior corrosion resistance compared to carbon-based types due to the metal film structure and epoxy or ceramic outer layer. However, uncoated axial leads can experience corrosion if exposed to salt spray, high humidity, or thermal cycling with condensation over periods exceeding 1–2 years. For harsh maritime or chemical environments, encapsulation or selective coating of the RNR55H2260BSRE6 is recommended to preserve the ±0.1% tolerance.

How do the temperature coefficient and operating range of the RNR55H2260BSRE6 affect precision dividers used in data acquisition systems?: A ±50ppm/°C temperature coefficient on the RNR55H2260BSRE6 means that a 100°C temperature swing (from -25°C to +75°C ambient) can shift the 226 Ohm value by approximately ±1.13 Ohms, or ±0.5%. For a 10:1 precision divider constructed with matching RNR55H2260BSRE6 components, this shift remains proportional in both numerator and denominator resistors, partially self-canceling. However, if the divider spans from the RNR55H2260BSRE6 (226 Ω) to a different component series, drift becomes visible as a divider ratio error of ±0.3–0.5%, requiring software correction or active calibration in systems targeting ±1% overall accuracy. Military applications often mitigate this by housing dividers in thermally regulated enclosures or using matched resistor networks rated at ±25ppm/°C.

What is the long-term drift of the RNR55H2260BSRE6 under continuous operation at elevated temperature?: Military metal film resistors like the RNR55H2260BSRE6 are screened for initial resistance shift during 1000-hour burn-in at maximum rated temperature and power. Typical drift specifications are <0.5% over this screening interval. In service, continuous operation at 150°C (near the upper end of the -65°C to 175°C range) produces an additional 0.01–0.05% drift per 1000 hours, depending on stress levels and environment. For a 226 Ohm RNR55H2260BSRE6 operating at rated power continuously, expect a total shift of approximately ±1 Ohm over a 20-year lifetime, which remains within the original ±0.1% tolerance for most applications unless extremely tight gain accuracy is required across the entire product life.

How should the RNR55H2260BSRE6 be soldered in automated assembly to avoid thermal shock and lead corrosion?: The RNR55H2260BSRE6 has solderable axial leads suitable for wave and reflow soldering. Peak reflow temperature should not exceed 260°C for more than 10 seconds to avoid epoxy or adhesive degradation inside the axial package. During wave soldering, immersion time should be limited to 3–4 seconds to prevent moisture ingress and lead oxidation; preheating to 100–150°C helps reduce thermal shock on the metal film element. If board-level conformal coating is planned, apply coating after solder cure and thermal aging (minimum 24 hours post-assembly). For the RNR55H2260BSRE6 to maintain its military-grade reliability, assembly process windows should be documented and monitored; deviation beyond specified thermal profiles can compromise the internal moisture barrier and accelerate long-term drift.

What is the noise performance of the RNR55H2260BSRE6 in comparison to wirewound resistors used in precision transimpedance amplifier (TIA) input stages?: The RNR55H2260BSRE6 generates approximately 10–15 nV/√Hz of thermal noise at 1 kHz, derived from Johnson noise in the metal film. Wirewound resistors of equivalent resistance typically exhibit similar thermal noise but introduce inductive effects and lower-frequency noise components from mechanical vibration and eddy currents. For a TIA with 226 Ohm feedback resistance using the RNR55H2260BSRE6, total input-referred noise at 10 kHz bandwidth is approximately 150–200 nV RMS, meeting the noise floor of many data acquisition systems. Wirewound alternatives would offer slightly lower noise but add 10–50 nH of parasitic inductance, introducing peaking or instability in feedback loops unless compensation is redesigned; the RNR55H2260BSRE6 provides a better balance of noise, stability, and bandwidth for signal conditioning at frequencies above 100 Hz.

Is the RNR55H2260BSRE6 suitable for current-sensing applications in power distribution, and what are the thermal design constraints?: The RNR55H2260BSRE6 can function as a current-sense resistor, with a 226 Ohm value producing a 226 mV drop at 1 A of current, requiring a 0.125W power dissipation budget. This makes the RNR55H2260BSRE6 practical only for low-current sensing (typically <100 mA continuous) without active thermal management. At 500 mA continuous, dissipation reaches 56.5 mW, leaving limited margin before the junction temperature rises significantly above ambient. For higher currents, multi-element resistor networks or precision shunt resistors with lower resistance values are preferable. However, for low-current bias monitoring, precision analog loop feedback, or sensor excitation limiting, the RNR55H2260BSRE6 offers the combination of tight tolerance and stable temperature performance necessary to maintain loop stability and prevent thermal runaway in long-term military deployments.

How does RoHS non-compliance of the RNR55H2260BSRE6 affect sourcing and supply-chain qualification for military versus commercial programs?: The RNR55H2260BSRE6 is RoHS non-compliant because military specifications (MIL-PRF-55182/01) predate and supersede environmental directives; lead-based solder on the RNR55H2260BSRE6 terminations actually enhances long-term reliability by reducing tin whisker risk and improving mechanical fatigue resistance over 40+ year service lives. Defense and aerospace programs generally accept or require non-compliant components for this reason. Commercial programs using the RNR55H2260BSRE6 must obtain formal exemptions or declare RoHS deviations in bill-of-materials compliance matrices. Sourcing is therefore restricted to distributors maintaining military inventory; the RNR55H2260BSRE6 cannot be substituted with commercial alternatives without program-level approval and re-qualification testing, increasing design-in cycle time by 2–4 weeks.

What are the high-frequency limitations of the RNR55H2260BSRE6 in circuits operating above 1 MHz?: At frequencies above 1 MHz, the RNR55H2260BSRE6 exhibits inductive effects from the 0.250" axial lead length and the thin-film geometry, introducing approximately 2–5 nH of self-inductance. This creates a skin-effect resonance around 50–100 MHz, where impedance rises and phase angle deviates from purely resistive behavior. For precision RF circuits requiring stable 226 Ohm impedance above 10 MHz, surface-mount thick-film or chip resistor alternatives are necessary. However, for applications in the 100 kHz to 5 MHz range—such as filtering, coupling, or load resistances in frequency-response tuning networks—the RNR55H2260BSRE6 remains suitable because parasitic inductance contributes less than 0.5 Ohms of reactive impedance, negligible compared to component tolerances and circuit loss. Designers should verify resonance effects empirically rather than assuming purely resistive behavior when the RNR55H2260BSRE6 is used in impedance-critical RF applications.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vishay Dale RNR55H2260BSRE6

Product Attribute
Part Number	RNR55H2260BSRE5	RNR55H2260BSRE8	RNR55H2260BMRE6	RNR55H2260BSRE7
Manufacturer	Vishay Dale	Vishay Dale	Vishay Dale	Vishay Dale
Power (Watts)	-	-	-	-
Height - Seated (Max)	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Features	-	-	-	Simultaneous Sampling
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Composition	-	-	-	-
Failure Rate	-	-	-	-
Resistance	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Size / Dimension	-	-	-	-
Number of Terminations	-	-	-	-
Series	-	-	-	-
Temperature Coefficient	-	-	-	-
Tolerance	-	-	-	-

RNR55H2260BSRE6 Datasheet PDF

Download RNR55H2260BSRE6 pdf datasheets and Vishay Dale documentation for RNR55H2260BSRE6 - Vishay Dale.

Datasheets: ERC (Military RNC/RNR) Series.pdf

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