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Specifications
Type:
Thick Film Resistor
Resistance:
200mΩ
Power(Watts):
50W
Temperature Coefficient:
±100ppm/℃
Tolerance:
±1%
Operating Temperature:
-55℃~+150℃
Mfr. Part #:
PWR221T-50-R200F
Package:
TO-220
Key Attributes
Model Number:
PWR221T-50-R200F
Product Description
Product Overview
The Bourns PWR221T-30 Series is a TO-220 style power resistor manufactured using thick film on alumina ceramic technology. Designed for current limiting, capacitor discharge, and current measurement circuits, this resistor is ideal for power supplies in telecom and industrial applications, as well as motor drives, test and measurement equipment, and rectifiers. It features a low inductance, ceramic backplane, high power rating, and is AEC-Q200 and RoHS compliant.
Product Attributes
- Brand: Bourns
- Series: PWR221T-30
- Housing: TO-220 style
- Technology: Thick film on alumina ceramic
- Substrate Material: Alumina (AL2O3)
- Housing Material: Epoxy
- Pin Material: Tinned Copper (Sn/Cu)
- Flammability: Conforms to UL-94V0
- Moisture Sensitivity Level: 1
- ESD Classification (HBM): 3B
- Packaging: 50 pcs./tube
- Compliance: AEC-Q200 compliant, RoHS compliant*
- Origin: COSTA RICA
Technical Specifications
| 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 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 Air) | 2.25 W |
| Power Derating (Free Air) | 2.8 W at 25 C (mounted on double-sided copper board) |
Popular Resistance Values
| Code | Resistance Value | Code | Resistance Value |
|---|---|---|---|
| R020 | 0.02 *** | 1000 | 100 |
| R025 | 0.025 *** | 1200 | 120 |
| R030 | 0.03 *** | 1500 | 150 |
| R033 | 0.033 *** | 2000 | 200 |
| R040 | 0.04 *** | 2500 | 250 |
| R050 | 0.05 *** | 3000 | 300 |
| R075 | 0.075 *** | 3300 | 330 |
| R100 | 0.1 | 4000 | 400 |
| R150 | 0.15 | 4700 | 470 |
| R200 | 0.2 | 5000 | 500 |
| R250 | 0.25 | 5600 | 560 |
| R300 | 0.3 | 7500 | 750 |
| R330 | 0.33 | 1001 | 1.0 K |
| R400 | 0.4 | 1501 | 1.5 K |
| R500 | 0.5 | 2001 | 2.0 K |
| R750 | 0.75 | 2501 | 2.5 K |
| 1R00 | 1 | 3001 | 3.0 K |
| 1R50 | 1.5 | 3301 | 3.3 K |
| 2R00 | 2 | 4001 | 4.0 K |
| 2R50 | 2.5 | 5001 | 5.0 K |
| 3R00 | 3 | 7501 | 7.5 K |
| 3R30 | 3.3 | 1002 | 10 K |
| 4R00 | 4 | 1502 | 15 K |
| 5R00 | 5 | 2002 | 20 K |
| 7R50 | 7.5 | 2502 | 25 K |
| 8R00 | 8 | 3002 | 30 K |
| 10R0 | 10 | 3302 | 33 K |
| 12R0 | 12 | 4002 | 40 K |
| 15R0 | 15 | 4702 | 47 K |
| 20R0 | 20 | 5002 | 50 K |
| 25R0 | 25 | 5602 | 56 K |
| 27R0 | 27 | 6802 | 68 K |
| 30R0 | 30 | 7502 | 75 K |
| 33R0 | 33 | 8202 | 82 K |
| 40R0 | 40 | 1003 | 100 K |
| 47R0 | 47 | 1153 | 115 K |
| 50R0 | 50 | 1203 | 120 K |
| 56R0 | 56 | 1253 | 125 K |
| 75R0 | 75 | 1303 | 130 K |
Product Dimensions
| Dimension | Value (mm) | Value (inches) |
|---|---|---|
| Length (CL) | 10.41 0.25 | (.410 .010) |
| Length (LC) | 8.38 0.25 | (.330 .010) |
| Diameter (CERAMIC) | 3.18 0.1 | (.125 .004) |
| Pin Diameter | 1.38 0.25 | (.054 .010) |
| Pin Width | 3.18 0.25 | (.125 .010) |
| Pin Width | 3.18 0.25 | (.125 .010) |
| Pin Width | 2.92 0.25 | (.115 .010) |
| Pin Width (CERAMIC) | 2.54 0.25 | (.100 .010) |
| Overall Length | 12.7 1.27 | (.500 .050) |
| Overall Length | 15.62 0.25 | (.615 .010) |
| Overall Length | 16.26 0.25 | (.640 .010) |
| Overall Width | 9.14 0.25 | (.360 .010) |
| Pin Diameter (CERAMIC) | 0.72 0.12 | (.029 .005) |
| Pin Diameter | 1.03 0.25 | (.041 .010) |
| Pin Width | 5.08 0.25 | (.200 .010) |
| Pin Width | 1.02 0.25 | (.040 .010) |
How to Order Example
PWR221T-30-10R0F
- Model: PWR = Power Resistor
- Package: 221 = TO-220 Style
- Pin Style: T = Through-hole
- Power: 30 = 30 W
- Resistance Value: <100 ohms: R represents decimal point (e.g., 7R50 = 7.5 ; R500 = 0.5 ); 100 ohms: First three digits are significant, fourth digit represents number of zeros (e.g., 2000 = 200 ohms; 3002 = 30K ohms)
- Absolute Tolerance: J = 5 %; F = 1 %
Part Marking Example
221 30 R500 1% YYWW COSTA RICA
- Manufacturer's Trademark
- Model Number
- Resistance Code
- Tolerance
- Date Code
- Country of Origin
2410301800_BOURNS-PWR221T-50-R200F_C7030192.pdf
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