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RSMF3JB5K10
Stackpole Electronics Inc
RES 5.1K OHM 5% 3W AXIAL
44993 Pcs New Original In Stock
5.1 kOhms ±5% 3W Through Hole Resistor Axial Flame Proof, Safety Metal Oxide Film
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5.0 / 5.0
- (324 Ratings)
RSMF3JB5K10
Product Overview
6706804
DiGi Electronics Part Number
RSMF3JB5K10-DGManufacturer
Stackpole Electronics Inc
RSMF3JB5K10
Description
RES 5.1K OHM 5% 3W AXIALInventory
44993 Pcs New Original In Stock
5.1 kOhms ±5% 3W Through Hole Resistor Axial Flame Proof, Safety Metal Oxide Film
Quantity
Minimum 1
Minimum 1
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RSMF3JB5K10 Technical Specifications
Category
Through Hole Resistors
Packaging
Bulk
Series
RSMF
Product Status
Active
Resistance
5.1 kOhms
Tolerance
±5%
Power (Watts)
3W
Composition
Metal Oxide Film
Features
Flame Proof, Safety
Temperature Coefficient
±200ppm/°C
Operating Temperature
-55°C ~ 235°C
Package / Case
Axial
Supplier Device Package
Axial
Size / Dimension
0.217" Dia x 0.591" L (5.50mm x 15.00mm)
Height - Seated (Max)
-
Number of Terminations
2
Failure Rate
-
Datasheet & Documents
HTML Datasheet
RSMF3JB5K10-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
Not Applicable
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8533.21.0090
Additional Information
Other Names
RSMF35.1K5%A
RSMF35.1KJA
RSMF 3 5.1K 5% A
RSMF35.1KJA-DG
RSMF35.1K5%A-DG
Standard Package
200
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
December 02, 2025
가격 경쟁력과 빠른 배송 서비스가 꼭 필요할 때마다 도움돼요.
December 02, 2025
Their packaging is environmentally aware, and the prices remain very appealing.
December 02, 2025
Prices at DiGi Electronics are unbeatable compared to other stores.
December 02, 2025
Their innovative packaging solutions are both sustainable and cost-effective.
December 02, 2025
DiGi Electronics’ diverse offerings make it easy to find innovative solutions.
December 02, 2025
I am extremely satisfied with how quickly DiGi Electronics processes my emergency orders.
December 02, 2025
Reliable, affordable, and durable — their products meet all my needs.
December 02, 2025
Always a positive experience thanks to their reasonable prices and friendly staff.
December 02, 2025
DiGi Electronics products are built with high standards, ensuring long-term satisfaction.
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Frequently Asked Questions (FAQ)
Can the RSMF3JB5K10 resistor be safely used in a high-temperature industrial control panel where ambient temperatures regularly exceed 150°C, and what derating considerations should I apply?
Yes, the RSMF3JB5K10 is rated for operation up to 235°C, making it suitable for high-temperature environments like industrial control panels. However, you must apply power derating above 70°C—Stackpole recommends reducing power dissipation linearly to zero at 235°C. At 150°C ambient, limit power to approximately 1.2W (40% of 3W) to ensure long-term reliability and prevent thermal runaway. Always maintain adequate airflow and avoid clustering with heat-sensitive components.
Is the RSMF3JB5K10 a direct replacement for a Vishay Dale RS03K5101F in a flame-proof safety circuit, and what certification or performance differences should I verify before swapping?
The RSMF3JB5K10 can serve as a functional replacement for the Vishay RS03K5101F due to matching 5.1kΩ ±5%, 3W, axial flame-proof metal oxide construction. However, verify that your application relies on UL or IEC flame-proof certifications—while both are safety-rated, the RSMF3JB5K10’s compliance is based on construction and testing per industry standards, not a specific UL file. Confirm mechanical fit (5.50mm x 15.00mm vs. Vishay’s 5.3mm x 13.5mm) and ensure the ±200ppm/°C tempco meets your thermal stability requirements.
What are the risks of using the RSMF3JB5K10 in a high-humidity outdoor environment without additional conformal coating, and how does its metal oxide film composition affect long-term stability?
Although the RSMF3JB5K10 is RoHS3 compliant and not moisture-sensitive (MSL Not Applicable), its axial leads and unsealed body make it vulnerable to corrosion and resistance drift in sustained high-humidity conditions (>85% RH). The metal oxide film offers better moisture resistance than carbon composition, but prolonged exposure can still cause oxidation at lead junctions or surface contamination. For outdoor use, apply conformal coating (e.g., silicone or acrylic) and consider hermetic sealing or selecting a molded resistor if condensation is likely.
How does the RSMF3JB5K10 perform under repetitive surge or overload conditions compared to a wirewound resistor like the Ohmite L25J3K0, and when should I avoid using it in pulse-heavy circuits?
The RSMF3JB5K10, being a metal oxide film resistor, handles moderate surges better than carbon film types but lacks the thermal mass and surge resilience of wirewound resistors like the Ohmite L25J3K0. It is not recommended for repetitive high-energy pulses (e.g., in capacitor discharge or inductive load switching) where peak power exceeds 10x rated wattage. For such applications, the wirewound alternative provides superior pulse handling. Use the RSMF3JB5K10 only in steady-state or low-duty-cycle transient environments, and always validate with worst-case thermal simulations.
Can I parallel two RSMF3JB5K10 resistors to achieve a 2.55kΩ, 6W solution in a space-constrained design, and what are the thermal coupling risks I need to mitigate?
Paralleling two RSMF3JB5K10 resistors yields approximately 2.55kΩ with a combined 6W capability, but thermal coupling significantly reduces real-world performance. If mounted closely (<10mm apart), mutual heating can raise individual resistor temperatures beyond safe limits, causing derating and potential drift. To mitigate, space them at least 15mm apart, use vertical mounting for natural convection, and ensure each sees unobstructed airflow. Monitor surface temps in prototype testing—never assume linear power summation without empirical validation under load.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
RSMF3JB5K10 CAD Models
Stackpole Electronics Inc RSMF3JB5K10 PCB symbols & footprints
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