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HomeProductsResistorsThrough Hole ResistorsRLR07C1783FSRE6
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RLR07C1783FSRE6 - Vishay Dale

Manufacturer Part Number
RLR07C1783FSRE6
Manufacturer
Dale / Vishay
Allelco Part Number
98D-RLR07C1783FSRE6
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
30,506 pcs available, New & Original
Parts Description
RES 178K OHM 1% 1/4W AXIAL
Package
Axial
Data sheet
RLR07C1783FSRE6.pdf
RoHs Status
 
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Our certification
In stock: 30506
  • Unit Price: $0.434
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.434 $0.43
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

RLR07C1783FSRE6 Tech Specifications
Vishay Dale - RLR07C1783FSRE6 technical specifications, attributes, parameters and parts with similar specifications to Vishay Dale - RLR07C1783FSRE6

Product Attribute Attribute Value
Manufacturer Dale / Vishay
Tolerance ±1%
Temperature Coefficient ±100ppm/°C
Supplier Device Package Axial
Size / Dimension 0.090" Dia x 0.250" L (2.29mm x 6.35mm)
Series Military, MIL-PRF-39017/01, RLR07
Resistance 178 kOhms
Power (Watts) 0.25W, 1/4W
Package / Case Axial
Product Attribute Attribute Value
Package Tape & Reel (TR)
Operating Temperature -65°C ~ 150°C
Number of Terminations 2
Height - Seated (Max) -
Features Military, Moisture Resistant, Weldable
Failure Rate S (0.001%)
Composition Metal Film
Base Product Number RLR07

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 RLR07C1783FSRE6 suitable for military and aerospace applications compared to commercial-grade resistors?
The RLR07C1783FSRE6 is manufactured to MIL-PRF-39017/01 specifications, which mandate stringent quality control, extended environmental testing, and traceability documentation required by defense contractors. The metal film construction combined with moisture-resistant properties ensures stable performance across the -65°C to 150°C operating range without the drift typically seen in carbon composition alternatives. The weldable terminations on the RLR07C1783FSRE6 also enable direct integration into sealed assemblies, a critical requirement when component replacement or rework is impossible after potting or hermetic packaging.
How does the ±100ppm/°C temperature coefficient of the RLR07C1783FSRE6 affect circuit performance across its full operating range?
The 178 kOhm nominal value of the RLR07C1783FSRE6 can drift approximately ±14.2 ohms over the 215°C operating span from -65°C to 150°C. In precision analog circuits such as integrators, Howland current pumps, or ratio-critical dividers, this translates to cumulative error that may require active trimming or thermal compensation networks. For the RLR07C1783FSRE6 in RF biasing or DC reference applications, the temperature coefficient becomes negligible; however, in precision measurement frontends where 178 kOhm sets a time constant or gain factor, designers should verify whether post-calibration or drift budgeting is necessary.
Can the RLR07C1783FSRE6 be used in high-vibration or high-shock environments without risk of joint failure?
The RLR07C1783FSRE6 employs axial leads with solder or weld terminations suitable for through-hole mounting on rigid PCBs. Axial resistor construction provides mechanical compliance during thermal cycling and vibration due to lead flexibility, reducing fatigue-induced crack initiation compared to surface-mount alternatives. However, the RLR07C1783FSRE6 requires mechanical support or conformal coating in extreme shock environments (>10G sustained) to prevent lead bending at the solder joint. Potting or encapsulation is recommended when the RLR07C1783FSRE6 is deployed in avionics or munitions applications.
What is the practical difference in reliability between the RLR07C1783FSRE6 and a standard commercial 1% metal film resistor?
The RLR07C1783FSRE6 specifies a failure rate of 0.001% (1 FIT), derived from MIL-HDBK-217 modeling under controlled manufacturing and screening conditions. Commercial resistors rarely publish failure rate data; when they do, typical values range from 0.1% to 1% annually depending on stress and temperature. The RLR07C1783FSRE6 achieves lower failure rates through incoming inspection, electrical testing at temperature extremes, and destructive physical analysis sampling. In a system requiring 20+ year operational life with minimal field returns, the RLR07C1783FSRE6 justifies cost premium; in consumer applications with 5-year lifecycles, the reliability advantage becomes marginal.
How does moisture resistance in the RLR07C1783FSRE6 compare to conformal coating protection?
The RLR07C1783FSRE6 features inherent moisture-resistant construction—typically a combination of epoxy-resin body coating and sealed leads—that meets MIL-PRF-39017/01 salt-fog and humidity testing without additional process steps. Conformal coating (acrylic, urethane, or parylene) protects the PCB assembly comprehensively but adds process complexity, cost, and potential rework difficulty. The RLR07C1783FSRE6 alone is suitable for sealed enclosures or low-humidity environments; however, in outdoor or marine applications, conformal coating over the RLR07C1783FSRE6 and surrounding circuitry provides redundant protection and is often mandated by procurement specifications.
Is the RLR07C1783FSRE6 suitable for audio or precision analog applications where 1% tolerance is marginal?
The ±1% tolerance of the RLR07C1783FSRE6 is typical for precision metal film resistors and is adequate for most audio coupling, filtering, and gain-setting applications where component matching is more critical than absolute accuracy. In a stereo crossover or mic preamp, the RLR07C1783FSRE6 paired with a 1% capacitor usually achieves frequency response flatness within ±0.5dB across the audio band. For precision instrumentation requiring <0.1% accuracy—such as precision Howland pumps, log-antilog converters, or trimmed references—the RLR07C1783FSRE6 alone is insufficient; designers must cascade the RLR07C1783FSRE6 with thin-film trimmers or use active calibration to meet tighter tolerances.
What are the lead-time and sourcing implications of the RLR07C1783FSRE6 military specification?
Military-qualified components including the RLR07C1783FSRE6 typically carry longer lead times (8–16 weeks) and limited supplier networks compared to commercial alternatives. The RLR07C1783FSRE6 is subject to defense contract regulations, ITAR considerations, and traceability requirements that restrict distributor inventory and require certified documentation trails. Designers should verify that the RLR07C1783FSRE6 is available in both commercial and government supply chains, and that supplier commitments align with program production schedules. In rapid prototyping or low-volume military programs, the RLR07C1783FSRE6 may represent a critical long-lead-time component.
How should the RLR07C1783FSRE6 be mounted and soldered to avoid mechanical or thermal stress?
The RLR07C1783FSRE6 is a 0.25W axial resistor with modest thermal mass and lead geometry designed for wave soldering or selective reflow at temperatures typical for through-hole assembly (250–260°C peak). Hand soldering of the RLR07C1783FSRE6 is acceptable provided dwell time is minimized (<3 seconds per lead) and iron temperature is kept below 400°C to avoid epoxy resin degradation. The RLR07C1783FSRE6 should be mounted perpendicular or parallel to the PCB surface with clearance from high-temperature components; in dense layouts, the RLR07C1783FSRE6 may require post-solder potting support if subjected to thermal shock or mechanical stress during assembly.
What thermal de-rating considerations apply to the RLR07C1783FSRE6 in high-ambient-temperature environments?
The RLR07C1783FSRE6 is rated for 0.25W continuous dissipation at 70°C ambient; above this temperature, power rating is typically derated by 1–1.5mW per °C depending on mounting conditions and airflow. In a 120°C environment, the practical power limit for the RLR07C1783FSRE6 drops to approximately 0.15–0.18W. Designers should calculate worst-case circuit current through the RLR07C1783FSRE6 and verify that resistive heating does not exceed the derated limit, as over-dissipation accelerates drift and reduces reliability margin. In thermal design, the RLR07C1783FSRE6 should be positioned away from other heat-generating components and, if possible, oriented to enhance convective cooling.
Can the RLR07C1783FSRE6 replace commercial 1% resistors in legacy designs without design review?
While the RLR07C1783FSRE6 is electrically and physically compatible with standard commercial 1% metal film resistors of the same footprint, substitution should be accompanied by verification of supply chain qualification and design authority approval. The RLR07C1783FSRE6 may carry different thermal characteristics, moisture sensitivity profile, or EMI/RFI performance depending on specific manufacturing lot and source. For production designs, the RLR07C1783FSRE6 should be formally qualified through environmental testing (thermal cycling, salt-fog, vibration) and destructive physical analysis before incorporating into critical assemblies.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vishay Dale RLR07C1783FSRE6

Product Attribute RLR07C1783FSR36 RLR07C1783FSRE8 RLR07C1783FSRE5 RLR07C1783FSRE7
Part Number RLR07C1783FSR36 RLR07C1783FSRE8 RLR07C1783FSRE5 RLR07C1783FSRE7
Manufacturer Vishay Dale Vishay Dale Vishay Dale Vishay Dale
Power (Watts) - - - -
Height - Seated (Max) - - - -
Features - - - Simultaneous Sampling
Base Product Number - DAC34H84 MAX500 ADS62P42
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Series - - - -
Number of Terminations - - - -
Composition - - - -
Tolerance - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Size / Dimension - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Temperature Coefficient - - - -
Failure Rate - - - -
Resistance - - - -

RLR07C1783FSRE6 Datasheet PDF

Download RLR07C1783FSRE6 pdf datasheets and Vishay Dale documentation for RLR07C1783FSRE6 - Vishay Dale.

Datasheets
ERL (Military RLR).pdf
PCN Design/Specification
Mil-PRF-39017, RLR05,7 Failure Rate 27/Jun/2016.pdf Mil-PRF-39017, Military type RLR05 & RLR07 Amendme.pdf
PCN Assembly/Origin
RLR07 Failure Rate Notification 05/Oct/2017.pdf

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In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
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
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
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RLR07C1783FSRE6 Image

RLR07C1783FSRE6

Vishay Dale
98D-RLR07C1783FSRE6

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

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