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HomeProductsResistorsThrough Hole ResistorsCPR03620R0KE31
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CPR03620R0KE31 - Vishay Dale

Manufacturer Part Number
CPR03620R0KE31
Manufacturer
Dale / Vishay
Allelco Part Number
98D-CPR03620R0KE31
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
46,570 pcs available, New & Original
Parts Description
RES 620 OHM 3W 10% RADIAL
Package
Radial Lead
Data sheet
CPR03620R0KE31.pdf

PCN Part Status Change

2.73KHz.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 46570
  • Unit Price: $0.998
  • Subtotal: $0.00

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The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

CPR03620R0KE31 Tech Specifications
Vishay Dale - CPR03620R0KE31 technical specifications, attributes, parameters and parts with similar specifications to Vishay Dale - CPR03620R0KE31

Product Attribute Attribute Value
Manufacturer Dale / Vishay
Tolerance ±10%
Temperature Coefficient ±400ppm/°C
Supplier Device Package Radial Lead
Size / Dimension 0.906' L x 0.375' W (23.00mm x 9.53mm)
Series CPR
Resistance 620 Ohms
Power (Watts) 3W
Product Attribute Attribute Value
Package / Case Radial
Package Bulk
Operating Temperature -65°C ~ 225°C
Number of Terminations 2
Height - Seated (Max) 0.375' (9.53mm)
Features Flame Proof, Safety
Failure Rate -
Composition Metal Oxide Film

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8533.21.0090

Frequently Asked Questions(FAQ)

What are the key differences between the CPR03620R0KE31 and other 3W metal oxide film resistors in terms of thermal performance at elevated temperatures?
The CPR03620R0KE31 is rated for continuous operation up to 225°C, which positions it above many general-purpose 3W resistors limited to 155–200°C. At maximum rated temperature, the 620 Ohm resistance will shift by approximately ±0.96 Ohms (±0.15% relative change) due to the ±400 ppm/°C temperature coefficient. This thermal stability is typical for metal oxide film construction and makes the CPR03620R0KE31 suitable for applications near power supply heat sinks, motor control circuits, or industrial environments where ambient temperatures exceed 100°C. The flame-proof design further reduces thermal runaway risk in fault conditions.
Can the CPR03620R0KE31 be used as a current-limiting resistor in high-frequency switching circuits, and what thermal management considerations apply?
Yes, the CPR03620R0KE31's 3W rating and metal oxide film construction make it suitable for current-limiting duty in switching topologies. At 3W dissipation (worst case), the resistor will carry approximately 0.078 A continuous (√(3W / 620Ω) ≈ 0.078 A). For high-frequency switching circuits, the CPR03620R0KE31 exhibits lower parasitic inductance than wirewound alternatives, reducing EMI and ringing. However, thermal management remains critical: in a 70°C ambient environment, continuous 3W operation will raise the resistor surface temperature roughly 60–90°C above ambient, pushing the CPR03620R0KE31 close to its 225°C maximum. PCB thermal relief planes and forced-air cooling are recommended for sustained high-power applications.
How does the ±10% tolerance of the CPR03620R0KE31 affect circuit performance in precision current-sensing applications?
The ±10% tolerance means the CPR03620R0KE31 actual resistance can range from 558 Ohms to 682 Ohms. In precision current-sensing circuits where the resistor acts as a transducer (e.g., in a 24 mA industrial loop or precision power supply feedback), this tolerance directly translates to ±10% measurement error without calibration. For example, a nominal 1V drop across the CPR03620R0KE31 at 1.61 mA could measure between 0.9V and 1.1V depending on tolerance stack-up. Designers requiring better accuracy should either select tighter-tolerance resistors (1% or 0.1%), implement post-manufacture sorting, or include calibration trimmers in parallel with the CPR03620R0KE31 to correct initial error.
What are the practical differences between using the CPR03620R0KE31 (radial lead) versus axial lead resistors in crowded PCB layouts?
The CPR03620R0KE31 radial configuration (0.906" L × 0.375" W body, 23.00 mm × 9.53 mm) places both leads at one end of the component, allowing it to mount closer to the board edge or adjacent components compared to axial resistors of equivalent power. This geometry reduces required PCB footprint by roughly 30–40% in length-constrained applications (e.g., edge connectors, narrow stripboard). However, radial mounting requires perpendicular board clearance beneath the body; axial resistors can lie flat. The CPR03620R0KE31's radial lead spacing also benefits wave soldering processes, offering better solder wetting and reduced bridging compared to tight-lead geometries.
Is the CPR03620R0KE31 suitable for load-bank and power-dissipation testing applications, and how should it be mounted?
Yes, the CPR03620R0KE31's 3W continuous rating, metal oxide film durability, and flame-proof construction make it well-suited for load-bank and dynamic testing roles. At full 3W dissipation, the CPR03620R0KE31 generates sustained heat and requires forced convection or thermal interface material (e.g., thermally conductive epoxy to an aluminum heat sink) to maintain reliable operation. The radial lead geometry facilitates mounting vertically on edge connectors or custom test harnesses. Designers should verify that adjacent components tolerate the CPR03620R0KE31's thermal output (typically 80–120°C surface temperature under continuous 3W load); thermal shielding may be needed near temperature-sensitive components such as capacitors or semiconductors.
How do the flame-proof and safety ratings of the CPR03620R0KE31 influence its use in automotive and medical device applications?
The flame-proof designation of the CPR03620R0KE31 indicates compliance with UL, IEC, and equivalent standards requiring self-extinguishing behavior after ignition source removal. This is critical in automotive (engine compartment) and medical device applications where component failure must not initiate secondary fires or electrical hazards. The CPR03620R0KE31's metal oxide film structure inherently provides this safety margin through rapid quenching of arc propagation. RoHS3 compliance further ensures the CPR03620R0KE31 meets regulated material restrictions in healthcare and consumer markets. For medical devices, the MSL 1 (unlimited moisture sensitivity level) rating means the CPR03620R0KE31 can be stored and deployed without desiccant packing or reflow window constraints, simplifying supply chain logistics.
What is the effective pulse power rating of the CPR03620R0KE31, and how does it differ from continuous 3W operation?
The CPR03620R0KE31 datasheet typically specifies 3W as the continuous power dissipation limit at 70°C ambient. Peak pulse power (microsecond to millisecond duration) can exceed 3W by 50–100% without permanent damage, provided duty cycle averaging remains below the continuous limit. For example, a 10 ms pulse at 5–6W dissipation (approximately 0.156 A peak into 620 Ohms) followed by extended off-time allows the CPR03620R0KE31 to cool and reset its thermal budget. Designers employing pulse duty cycles should model transient temperature rise using the CPR03620R0KE31's thermal time constant (typically 10–20 seconds to steady state in still air) and confirm that peak junction temperature remains below 225°C.
How should the CPR03620R0KE31 be integrated into power management circuits where thermal runaway or failure mode consequences are severe?
In mission-critical power management, the CPR03620R0KE31 should be protected by redundant current-limiting or fuse circuits upstream to prevent thermal runaway during fault conditions (short circuit, transient overload). The CPR03620R0KE31's ±400 ppm/°C positive temperature coefficient means resistance increases as temperature rises, providing inherent self-limiting behavior—but this feedback is slow (thermal time constant 10–20 seconds). Fast-acting electronic current limiters or thermal shutdown circuits external to the CPR03620R0KE31 are necessary for sub-second fault response. Additionally, thermal monitoring of the CPR03620R0KE31 via thermistor or infrared sensor allows predictive derating or circuit isolation before failure, extending system reliability in high-ambient or extreme-duty applications.
What are the long-term drift and aging characteristics of the CPR03620R0KE31 under continuous rated load?
Metal oxide film resistors including the CPR03620R0KE31 exhibit typical long-term drift of ±1–2% over 1000 operating hours at full rated power. This drift is cumulative with the initial ±10% manufacturing tolerance, meaning a CPR03620R0KE31 with worst-case initial tolerance (682 Ohms) could drift to approximately 695 Ohms (1.9% increase) after extended operation, totaling ~12% deviation from nominal. In precision applications requiring calibration stability, periodic re-verification or drift monitoring via series precision resistors is recommended. The CPR03620R0KE31's flame-proof, safety-rated construction provides excellent life under thermal stress compared to non-rated alternatives, but drift should be factored into long-life designs (>5 years continuous duty).
When comparing the CPR03620R0KE31 to wirewound 3W resistors, what are the trade-offs in EMI performance, frequency response, and reliability?
The CPR03620R0KE31 metal oxide film design exhibits significantly lower parasitic inductance (typically 5–15 nH) compared to wirewound 3W resistors (50–200 nH), making it superior for high-frequency circuits, RF filtering, and switching supplies where EMI must be minimized. The CPR03620R0KE31 frequency response remains flat to 100 MHz, whereas wirewound resistors exhibit resonances and impedance rise above 10 MHz. However, wirewound resistors typically offer tighter tolerance (1–5%) and superior pulse overload handling. The CPR03620R0KE31 is more vulnerable to mechanical shock and vibration due to its film construction but offers better thermal cycling endurance (−65 to +225°C range). For high-vibration applications (military, aerospace), wirewound may be preferred; for EMI-sensitive consumer and industrial designs, the CPR03620R0KE31 is the standard choice.
How does moisture ingress affect the CPR03620R0KE31, and what storage and deployment conditions ensure long-term reliability?
The CPR03620R0KE31's MSL 1 rating indicates no moisture sensitivity; the component can be stored at ambient humidity (up to 85% RH) indefinitely without degradation or reflow baking requirements. Unlike ceramic capacitors or advanced semiconductors, the CPR03620R0KE31's metal oxide film is inherently hydrophobic and unaffected by condensation or tropical storage environments. However, the radial lead terminations and solder joints remain subject to standard PCB corrosion mechanisms (galvanic, electromigration). In high-humidity deployment (marine, tropical), conformal coating over the CPR03620R0KE31 and solder joints extends longevity by 2–5×. The CPR03620R0KE31's temperature range (−65 to +225°C) supports extreme storage without freeze-thaw concerns, making it suitable for aerospace and outdoor telecommunications infrastructure.
What are the electromagnetic compatibility (EMC) considerations when designing with multiple CPR03620R0KE31 resistors in parallel or series configurations for high-current or precision applications?
Parallel CPR03620R0KE31 resistors for current distribution require careful layout to ensure balanced current sharing. Due to the ±10% tolerance, a pair of CPR03620R0KE31 units in parallel will see current imbalance proportional to resistance mismatch (worst case: 558 Ω vs. 682 Ω produces ~18% current imbalance). Matching resistors from the same production batch or selecting tighter-tolerance alternatives (1% grade) minimizes this effect. Series configurations for voltage dividers or high-impedance branches compound tolerance stacking: three CPR03620R0KE31 resistors in series exhibit combined tolerance up to ±10% of total resistance, not ±10% per stage. For EMC, parallel low-inductance paths via the CPR03620R0KE31's short radial leads and proper PCB return planes suppress common-mode noise. High-frequency decoupling capacitors placed near series resistor junctions further attenuate transients and reduce radiated emissions in switching circuits.
Can the CPR03620R0KE31 be soldered using lead-free reflow processes, and what are the thermal cycle reliability implications?
Yes, the CPR03620R0KE31 is fully compatible with lead-free (SAC305) reflow processes. The radial lead termination withstands standard reflow temperatures (peak 250°C, ramp rate 1–3°C/s) without degradation. However, lead-free solders exhibit higher melting points and reduced wetting compared to SnPb alloys, requiring slightly elevated reflow profiles. The CPR03620R0KE31's metal oxide film body tolerates brief exposure to 260°C without performance shift. Thermal cycle reliability (−40 to +125°C) of lead-free solder joints is generally equivalent to SnPb, though accelerated testing (IPC-TM-650) should be performed for critical applications. The CPR03620R0KE31's radial lead geometry reduces mechanical stress on solder joints compared to axial resistors, improving thermal cycle life in ruggedized products.

Parts with Similar Specifications

The three parts on the right have similar specifications to Vishay Dale CPR03620R0KE31

Product Attribute CPR03680R0KE31 CPR0362R00KE31 CPR03620R0KE14 CPR03620R0JE31
Part Number CPR03680R0KE31 CPR0362R00KE31 CPR03620R0KE14 CPR03620R0JE31
Manufacturer Vishay Dale Vishay Dale Vishay Dale Vishay Dale
Series - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Number of Terminations - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Composition - - - -
Features - - - Simultaneous Sampling
Size / Dimension - - - -
Temperature Coefficient - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Resistance - - - -
Failure Rate - - - -
Power (Watts) - - - -
Tolerance - - - -
Height - Seated (Max) - - - -

CPR03620R0KE31 Datasheet PDF

Download CPR03620R0KE31 pdf datasheets and Vishay Dale documentation for CPR03620R0KE31 - Vishay Dale.

Datasheets
Cylindrical Battery Holders.pdf
PCN Part Status Change
2.73KHz.pdf
HTML Datasheet
Cylindrical Battery Holders.pdf

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CPR03620R0KE31 Image

CPR03620R0KE31

Vishay Dale
98D-CPR03620R0KE31

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