Enhanced Film Power MELF Resistor ( 3W 3.3ohm 5%)
EFP301J3R30TKZTR2K0
Power Resistor, SMD Resistor
Enhanced Film Power MELF Resistor (EFP), 3W 3.3ohm 5%, features an SMD-enabled structure with superior anti-surge capability, and offers much better power dissipation than chip resistors. In general usage, a chip resistor operates at around 20% to 30% of its rated power, while a MELF resistor operates at around 50% of its rated power. Therefore, the power density of a MELF resistor is approximately 2 times that of a chip resistor.
| Size | Power Rating | Tolerance(%) | TCR(PPM) | Resistance(Ω) | Package |
|---|---|---|---|---|---|
| 0411 | 3W | 5% | -- | 3.3 | 2K/Tape Reel |
Features
- High power handling
- Superior reliability and stability
- Heat dissipation is much better than chip resistor
- Stronger mechanical structure to endure vibration and thermal shock
- SMD enabled structure with excellent solderability
- Products meet RoHS requirements and do not contain substances of very high concern identified by European Chemicals Agency
Application
- Power Supply
- Telecommunication
- Medical
- Lighting
Single Surge Performance
Enhanced Film Power MELF Resistor-EFP series,is showing the surge performance from 1uS to 1S.
Surge Power Derating Curve
• Above graph is accurate for NON REPETITIVE applications operating in an ambient temperature of 70°C or less. For temperatures above
70°C, the graph power must be derated further by 1.18% per °C. • For applicable surge power in continuous-surge applications please see SURGE POWER DERATING CURVE above.
Suggested Pad Layout
Suggested pad layout for Enhanced Film Power MELF Resistor, EFP series
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Surge Resistant MELF Resistor-SRM
The Surge Resistant MELF Resistor features a power rating from 0.25W to 3W, with a resistance range from 0.1Ω to 2.2MΩ. It has the advantages of tight tolerance compared to other branded wire wound resistors, with ±1%~±5% tolerances, and maximum permissible surge voltage up to 10KV. It is equipped with higher levels of performance regarding inrush current or surge damage from the environment. It is AEC-Q200 certified and anti-sulfur. It has an SMD structure and the sizes are the same as flat chip resistors. It has been tested and certified according to DIN EN IEC 62368-1 (VDE 0868-1):2021-05 Anhang/Annex G.10; EN IEC 62368-1:2020+A11:2020 Anhang/Annex G.10 (except SRM204 type) with VDE license number 40043961 and VDE license number 40054118.
Fusible MELF Resistor-FM
Fusible MELF Resistor (FM) is an SMD-enabled structure with MELF 0207 size, featuring a power rating from 0.33W to 1W and a resistance range from 2.2 ohms to 10K ohms, which is better in heat dissipation than a chip resistor and stronger in mechanical structure to endure vibration and thermal shock. The fusible resistor is a special resistor made to protect every circuit.
Wire Wound Resistors-WA
Wire Wound Resistor(WA series)features a power rating from 0.5W to 8W and a resistance range from 100m ohm to 3.3K ohm. It can withstand large loads at high ambient temperatures with long-term stability. The resistor has a flameproof multi-layer coating equivalent to UL 94 V-0 and has undergone an overload test per UL 1412. The color code follows MIL & EIA standards. Additionally, it is equipped with special tin-plated electrolytic copper lead wires.
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Enhanced Film Power MELF Resistor
SMD enabled structure and high power in small packages, it's better in heat dissipation than chip resistor.
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