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Home Products Resistors Through Hole Resistors~~RNC55H7500DSRE8~~

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RNC55H7500DSRE8 - Vishay Dale

Name: Vishay Dale RNC55H7500DSRE8
Brand: Vishay Dale
SKU: RNC55H7500DSRE8
Price: 1.031 USD
Availability: InStock
Rating: 5 (9 reviews)

Manufacturer Part Number: RNC55H7500DSRE8

Manufacturer: Dale / Vishay

Allelco Part Number: 98D-RNC55H7500DSRE8

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 35,748 pcs available, New & Original

Parts Description: RES 750 OHM 0.5% 1/8W AXIAL

Package: Axial

Data sheet: RNC55H7500DSRE8.pdf

Datasheets
ERC (Military RNC/RNR) Series.pdf

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Specifications

RNC55H7500DSRE8 Tech Specifications
Vishay Dale - RNC55H7500DSRE8 technical specifications, attributes, parameters and parts with similar specifications to Vishay Dale - RNC55H7500DSRE8

Product Attribute	Attribute Value
Manufacturer	Dale / Vishay
Tolerance	±0.5%
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	750 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, 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 makes the RNC55H7500DSRE8 suitable for military and aerospace applications compared to standard commercial resistors?: The RNC55H7500DSRE8 is manufactured to MIL-PRF-55182/01 specification, which imposes rigorous qualification and screening requirements absent in commercial resistor lines. The military-grade construction includes moisture-resistant metal film composition and weldable terminations, enabling reliable performance in high-reliability environments where component failure rates must remain predictable. The RNC55H7500DSRE8 carries a failure rate specification of S (0.001%), meaning it demonstrates documented long-term reliability suitable for systems where field replacement or maintenance is restricted or costly. The ±50ppm/°C temperature coefficient and wide operating range (-65°C to 175°C) ensure stable performance across demanding thermal cycling and altitude exposure conditions typical of aerospace platforms.

How does the ±0.5% tolerance of the RNC55H7500DSRE8 affect circuit tuning and filter design accuracy?: The ±0.5% tolerance specification of the RNC55H7500DSRE8 represents a significantly tighter tolerance band than general-purpose film resistors (typically ±1% or ±5%), enabling direct use in precision analog circuits without the need for post-assembly calibration or hand-selection. In filter applications, the 750 ohm nominal value combined with ±0.5% tolerance allows predictable corner frequency accuracy within 0.5% of design intent; for example, in an RC low-pass filter where the RNC55H7500DSRE8 sets the time constant, passband ripple and attenuation slope remain within engineered specifications without trimmer compensation. This precision is particularly valuable in multi-stage filter designs where tolerance stack-up across multiple resistors could otherwise produce unacceptable deviation; the RNC55H7500DSRE8 reduces cumulative tolerance contribution per stage, enabling tighter system-level performance budgets.

Why is the 1/8W (0.125W) power rating of the RNC55H7500DSRE8 limiting in high-frequency or pulsed circuit applications?: The RNC55H7500DSRE8 is rated for continuous DC or low-frequency operation at 0.125W dissipation. In pulsed or RF applications, peak instantaneous power can significantly exceed average power; a circuit delivering 0.5W pulses at 25% duty cycle averages 0.125W but subjects the RNC55H7500DSRE8 to thermal stress beyond datasheet assumptions, reducing component lifespan and increasing failure probability. Additionally, at frequencies above 100 kHz, the physical dimensions and axial lead geometry of the RNC55H7500DSRE8 introduce inductive reactance (estimated 1–2 nH per mm of lead length), progressively degrading the effective 750 ohm resistance. High-frequency applications benefit from surface-mount resistors with lower parasitic inductance; the RNC55H7500DSRE8 is optimized for DC bias networks, precision analog signal paths, and low-frequency compensation rather than wideband or pulsed environments.

Can the RNC55H7500DSRE8 be used as a drop-in replacement for commercial-grade 750 ohm resistors in legacy designs?: The RNC55H7500DSRE8 can functionally replace standard 750 ohm resistors in most circuit topologies, but design and procurement implications differ substantially. The RNC55H7500DSRE8 meets or exceeds the performance envelope of commercial alternatives in temperature stability (±50ppm/°C), tolerance (±0.5%), and long-term drift characteristics, making it a conservative upgrade choice. However, the RNC55H7500DSRE8 is supplied only in tape-and-reel military packaging, typically requiring minimum order quantities and lead times incompatible with low-volume or prototyping workflows. Cost per unit is materially higher than commercial metal film resistors. The RNC55H7500DSRE8 is appropriate for design refresh only if the application requires military qualification, documented traceability, or environmental robustness; for non-critical legacy applications, standard commercial 750 ohm resistors at ±1% tolerance remain functionally adequate and more accessible.

How does moisture resistance affect the long-term reliability of the RNC55H7500DSRE8 in humid or corrosive environments?: The moisture-resistant construction of the RNC55H7500DSRE8 incorporates protective coatings and sealed termination geometry that reduce absorption of atmospheric moisture into the resistive film. In high-humidity environments (>85% RH, sustained), standard film resistors experience gradual resistance drift and increased leakage current as moisture migrates into the substrate. The RNC55H7500DSRE8 demonstrates significantly reduced susceptibility to this failure mode; testing under MIL-PRF-55182/01 humidity cycling protocols confirms drift remains within 0.5% specification limits after 10+ moisture-saturation cycles. In marine or industrial corrosive atmospheres, the weldable metal terminations of the RNC55H7500DSRE8 resist oxidation and maintain solderability over extended storage periods, whereas bare copper leads on commercial resistors corrode and become difficult to solder. The RNC55H7500DSRE8 is therefore preferred for uncontrolled storage environments, outdoor installations, or systems expected to operate for 10+ years without environmental controls.

What is the practical difference between the ±50ppm/°C temperature coefficient of the RNC55H7500DSRE8 and a standard 100ppm/°C film resistor over a 100°C temperature swing?: Temperature coefficient determines how much resistance value changes per degree Celsius. Over a 100°C temperature excursion, the RNC55H7500DSRE8 exhibits a maximum drift of 0.5% (750 ohm × ±50ppm/°C × 100°C = ±3.75 ohms). A standard 100ppm/°C resistor would drift 1.0% under identical conditions (±7.5 ohms from 750 ohms). In bias and reference networks, this difference is often negligible; however, in precision analog front-ends (e.g., transimpedance amplifiers, logarithmic detectors, or precision current mirrors), the RNC55H7500DSRE8's tighter temperature tracking reduces output error drift. For example, in a precision current-to-voltage converter where the RNC55H7500DSRE8 sets the transimpedance gain, a 0.5% temperature drift produces approximately 0.5% output variation vs. 1.0% for a standard resistor. Over military operating ranges (-65°C to 175°C, a 240°C span), the cumulative drift of the RNC55H7500DSRE8 remains within 1.2%, enabling stable gain and offset performance without temperature compensation.

Why does the RNC55H7500DSRE8 require weldable terminations rather than standard soldered leads in certain aerospace or automotive applications?: Weldable terminations on the RNC55H7500DSRE8 allow direct fusion bonding to circuit boards or integrated assemblies without relying on solder, which can reflow, crack, or degrade under sustained vibration or thermal cycling. Automotive powertrains and aerospace vibration environments (up to 20G in some cases) can induce solder fatigue and intermittent connection failures within 2–5 years; weldable leads eliminate this failure mode by creating a metallurgical bond superior to mechanical soldering. Additionally, certain aerospace and military standards (e.g., MIL-A-38534) restrict or prohibit solder in high-reliability circuits due to potential tin whisker growth and joint degradation under thermal stress. The RNC55H7500DSRE8's weldable construction satisfies these restrictive qualification profiles. For designers bound by MIL-STD-1773 (hybrid microcircuit requirements) or working on vehicles subject to thermal shock (-40°C to +125°C, repeated), the weldable RNC55H7500DSRE8 provides a documented alternative to soldered interconnects, extending field reliability to 20+ year service intervals.

How does the axial lead geometry of the RNC55H7500DSRE8 influence circuit layout and parasitic inductance in precision analog designs?: The RNC55H7500DSRE8 is supplied in axial lead configuration (0.094" diameter, 0.250" length), which introduces approximately 1–2 nanohenries of lead inductance per millimeter of lead length. In DC circuits and audio-frequency applications (<10 kHz), this parasitic inductance is negligible. However, in precision analog-to-digital converter input networks or high-resolution measurement circuits operating at frequencies >100 kHz, the RNC55H7500DSRE8's lead inductance can interact with parasitic capacitance, creating resonant peaks or frequency-dependent impedance variations. For example, in a 1 MHz current-sense amplifier input, the RNC55H7500DSRE8 appears as 750 ohms plus ~5 ohms of inductive reactance, producing a ~0.7% effective impedance shift. Designers should route leads directly to ground planes and minimize loop area to reduce coupling. In high-frequency or high-speed applications (>1 MHz switching, >100 MHz signal paths), surface-mount thick-film or thin-film resistors offer superior high-frequency performance; the RNC55H7500DSRE8 remains optimized for low-frequency analog precision, compensation networks, and bias circuits.

What storage and shelf-life considerations apply to the RNC55H7500DSRE8 in tape-and-reel packaging?: The RNC55H7500DSRE8 is supplied in military tape-and-reel packaging designed for controlled storage environments. Although the component itself exhibits excellent long-term stability, extended storage in high-humidity, high-temperature, or thermally cycled conditions can degrade the adhesive tape and expose leads to oxidation. Manufacturer guidance specifies storage below 30°C and 60% RH for optimal shelf-life; under these conditions, the RNC55H7500DSRE8 maintains full performance specifications for 5+ years from date of manufacture (visible on packaging labels). Storage in unsealed environments or uncontrolled warehouses accelerates oxidation of weldable terminations, potentially compromising solderability or weldability after 2–3 years. The RNC55H7500DSRE8 should be transferred to dry-box storage (silica gel desiccant) upon receipt if lead times exceed 6 months between procurement and assembly. For high-reliability programs subject to traceability audits, date codes and manufacturing lot numbers printed on tape-and-reel packaging must be recorded and cross-referenced with qualification documentation; component age and storage history directly impact compliance verification.

How does the RNC55H7500DSRE8 compare to thin-film chip resistors in achieving high precision and temperature stability in miniaturized circuits?: The RNC55H7500DSRE8 and thin-film surface-mount resistors (e.g., 0805 or 0603 packages) both achieve ±0.5% or better tolerance and temperature coefficients near ±25–50ppm/°C. The RNC55H7500DSRE8 occupies significantly more board space (0.250" length vs. 2 mm for 0805 chips) and requires through-hole assembly, incompatible with high-density surface-mount workflows. However, the RNC55H7500DSRE8 offers two distinct advantages: (1) direct military qualification under MIL-PRF-55182/01 with published failure rates and documented lot traceability, versus generic commercial datasheet claims for chip resistors, and (2) weldable lead construction enabling assembly into hybrid circuits or direct bonding into integrated component packages without solder. For space-constrained, non-military designs, thin-film chip resistors are superior; the RNC55H7500DSRE8 is appropriate for legacy through-hole designs, military/aerospace applications requiring formal qualification, or hybrid microcircuit assembly where weldable leads are mandatory or advantageous.

What failure modes or degradation mechanisms is the RNC55H7500DSRE8 rated to withstand under MIL-PRF-55182/01 qualification?: MIL-PRF-55182/01 qualification of the RNC55H7500DSRE8 includes rigorous screening for resistance to thermal cycling (-65°C to +175°C, minimum 10 cycles), humidity exposure (85% RH, elevated temperature, minimum 1000 hours), mechanical shock (15G, 11 ms half-sine), and steady-state vibration (10–500 Hz, 5G acceleration). The RNC55H7500DSRE8 is tested to verify that measured resistance remains within ±0.5% specification and insulation resistance exceeds 1000 megohms after each stress. High-temperature aging (500 hours at 175°C) is used to accelerate long-term drift prediction; the RNC55H7500DSRE8 demonstrates that resistance change under accelerated aging remains <0.1% per 1000 hours, projecting stable performance over 20+ year mission intervals. Solder reflow and lead solderability are validated under MIL-STM-13949 protocols; the weldable terminations of the RNC55H7500DSRE8 maintain weldability specifications after thermal cycling, ensuring assembly reliability. However, the RNC55H7500DSRE8 is not rated for direct immersion in liquid or sustained exposure to corrosive chemicals beyond humid salt-spray environments; applications requiring hermetic sealing or chemical resistance require specialized packaging variants.

Can the RNC55H7500DSRE8 meet RoHS compliance requirements in modern procurement specifications?: The RNC55H7500DSRE8 is marked as RoHS non-compliant in current manufacturer documentation, meaning the component may contain materials (lead, cadmium, hexavalent chromium, or other restricted substances) at concentrations exceeding EU RoHS Directive 2011/65/EU thresholds. This restriction limits procurement of the RNC55H7500DSRE8 into new commercial or consumer product designs operating in RoHS-regulated markets (EU, California, China). However, RoHS compliance is often waived for military, aerospace, and medical applications under exemptions granted to regulated industries; procurement teams should verify exemption applicability with prime contractors or regulatory affairs departments before committing designs to the RNC55H7500DSRE8. For programs requiring full RoHS compliance, alternative 750 ohm resistors with RoHS-compliant construction exist in commercial or industrial grades, though they typically lack military qualification and lower failure rate specifications. The non-compliance status of the RNC55H7500DSRE8 is therefore a secondary concern in military contexts but a primary disqualifier for new commercial product designs targeting global markets.

What is the practical significance of the S (0.001%) failure rate specification of the RNC55H7500DSRE8 in reliability prediction and system MTBF calculations?: The S (0.001%) failure rate specification of the RNC55H7500DSRE8 is derived from MIL-HDBK-217 reliability modeling standards and represents the predicted proportion of components expected to fail per 1000 operating hours under defined environmental and thermal conditions. A failure rate of 0.001% per 1000 hours translates to 10 failures per million operating hours (FIT), enabling system-level MTBF (mean time between failures) calculations. For example, a circuit containing 100 RNC55H7500DSRE8 resistors operating continuously would accumulate approximately 1000 FIT (100 × 10), projecting an MTBF of ~1 million hours (114 years) for the resistor population alone. In space, aerospace, or mission-critical applications where downtime is economically or operationally prohibitive, the documented failure rate of the RNC55H7500DSRE8 enables engineers to allocate reliability margin and justify component selection in formal failure analysis (FMEA) and reliability block diagrams. Standard commercial resistors typically lack published failure rate data or carry generic estimates 5–10x higher than the RNC55H7500DSRE8, making the RNC55H7500DSRE8 a traceable choice for regulatory audits and engineering justification documents in regulated industries.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vishay Dale RNC55H7500DSRE8

Product Attribute
Part Number	RNC55H7500BSRE865	RNC55H7500BSRE8	RNC55H7500DSRE5	RNC55H7500DSRE7
Manufacturer	Vishay Dale	Vishay Dale	Vishay Dale	Vishay Dale
Number of Terminations	-	-	-	-
Height - Seated (Max)	-	-	-	-
Temperature Coefficient	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Composition	-	-	-	-
Tolerance	-	-	-	-
Features	-	-	-	Simultaneous Sampling
Size / Dimension	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Failure Rate	-	-	-	-
Power (Watts)	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Series	-	-	-	-
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Resistance	-	-	-	-

RNC55H7500DSRE8 Datasheet PDF

Download RNC55H7500DSRE8 pdf datasheets and Vishay Dale documentation for RNC55H7500DSRE8 - Vishay Dale.

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

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