Beijing Silk Road Enterprise Management Services Co., Ltd.
| Type | Thick Film Resistor |
| Resistance | 4Ω |
| Power(Watts) | 30W |
| Temperature Coefficient | ±100ppm/℃ |
| Tolerance | ±1% |
| Operating Temperature | -50℃~+150℃ |
| Description | Thick Film Resistor 4Ω 30W ±100ppm/℃ ±1% TO-220-2 Through Hole Resistors RoHS |
| Mfr. Part # | PWR221T-30-4R00F |
| Package | TO-220-2 |
| Model Number | PWR221T-30-4R00F |
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Product Specification
| Type | Thick Film Resistor | Resistance | 4Ω |
| Power(Watts) | 30W | Temperature Coefficient | ±100ppm/℃ |
| Tolerance | ±1% | Operating Temperature | -50℃~+150℃ |
| Description | Thick Film Resistor 4Ω 30W ±100ppm/℃ ±1% TO-220-2 Through Hole Resistors RoHS | Mfr. Part # | PWR221T-30-4R00F |
| Package | TO-220-2 | Model Number | PWR221T-30-4R00F |
The Bourns PWR221T-30 Series is a high-power resistor featuring a TO-220 style housing with a ceramic backplane, designed for applications requiring current limiting, capacitor discharge, or current measurement. Constructed with thick film on alumina ceramic technology, this resistor offers low inductance and a high power rating of 30W @ 25C Case Temperature. It is AEC-Q200 and RoHS compliant, making it suitable for demanding applications in power supplies, motor drives, test and measurement, and rectifiers.
| Parameter | Value(s) |
|---|---|
| Resistance Range | 0.02 to 130 K |
| Power Rating @ 25 C Case Temperature | 30 W** |
| Tolerance | 1%***, 5% |
| TCR (0.100 <R<130.0K ) | 100 PPM/C |
| TCR (0.050 <R<0.100 ) | 300 PPM/C |
| TCR (0.020 <R<0.050 ) | 600 PPM/C |
| Thermal Resistance - Rthj | 4.2 C/W |
| Inductance | 0.1 H maximum |
| Operating Voltage | P*R with a maximum of 250 V |
| Dielectric Strength | 2 KV AC |
| Insulation Resistance | 10 G |
| Operating Temperature | -55 C to +150 C |
| Short Term Overload R | 0.25 % |
| Load Life (2000 hours at rated power) R | 1.0 % |
| Thermal Shock R | 0.5 % |
| Resistance to Soldering Heat R | 0.5 % |
| Vibration R | 0.25 % |
| Terminal Strength R | 0.2 % |
| Shock R | 0.5 % |
| Humidity (Steady State) R | 0.5 % |
| High Temperature Exposure R | 0.5 % |
| Power rating free to air (no heat sink) | 2.25 W |
| Power dissipation on FR4 board @ 25 C | 2.8 W |
| Model Number Example | PWR221T-30-10R0F |
| Part Marking Example | 221 30 R500 1% YYWW COSTA RICA |
*RoHS Directive 2015/863, Mar 31, 2015 and Annex.
** Power rating of 2.25 W when mounted free to air (no heat sink).
*** Available for most values. Check Popular Resistance Values table.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
>>300
Ecer Certification：
Verified Supplier
Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an... Company Profile Beijing Silk Road Enterprise Management Services Co.,Ltd. is a professional company focus on integrated circuit ic business. Beijing Silk Road will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining an...
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