Features
■ TO-220 housing
■ Low inductance
■ Ceramic backplane
■ High power rating
■ AEC-Q200 qualifi ed
■ RoHS compliant*
Applications
■ Power supplies
■ Motor drives
■ Test and measurement
■ Rectifi ers
Electrical & Thermal Characteristics
PWR221T-30 Series Power Resistor
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
General Information
Bourns® PWR221T-30 Series is a TO-220 style power resistor made using thick fi lm on alumina ceramic technology. It is used in
current limiting, capacitor discharge or current measurement circuits in power supplies for telecom and industrial applications.
Parameter Value(s)
Resistance (See Popular Resistance Values table) 0.02 Ω to 130 KΩ
Power Rating @ 25 ˚C Case Temperature 30 W**
Tolerance ±1 %***, ±5 %
TCR
0.100 Ω<R<130.0K Ω
0.050 Ω<R<0.100 Ω
0.020 Ω<R<0.050 Ω
±100 PPM/˚C
±300 PPM/˚C
±600 PPM/˚C
Thermal Resistance - Rthj 4.2 ˚C/W
Inductance 0.1 μH maximum
Operating Voltage √P*R with a maximum of 250 V
Dielectric Strength 2 KV AC
Insulation Resistance 10 GΩ
Operating Temperature -55 ˚C to +150 ˚C
Material Characteristics
Resistor ...................................Thick fi lm
Substrate ..................... Alumina (AL203)
Housing ........................................Epoxy
Pins....................Tinned Copper (Sn/Cu)
Flammability ........ Conforms to UL-94V0
Reliability Characteristics
Parameter Specifi cation
Short Term Overload (2x Pr for R < 2 Ω,
1.6 x Pr for R ≥ 2 Ω, V < 1.5 x Operating Voltage) ΔR ±0.25 %
Load Life (2000 hours at rated power) ΔR ±1.0 %
Thermal Shock (-55 ˚C to 155 ˚C, 5 cycles) ΔR ±0.5 %
Resistance to Soldering Heat (10 seconds at
270 ˚C) ΔR ±0.5 %
Vibration (20 G 10-2000 Hz .06 ” D.A.) ΔR ±0.25 %
Terminal Strength (MIL-STD-202, Method 211
Test A1) ΔR ±0.2 %
Shock (Saw Tooth: 100 g/6 ms) ΔR ±0.5 %
Humidity (Steady State) 1000 hrs. 85 °C/85 % RH ΔR ±0.5 %
High Temperature Exposure
(100 hrs - 40 % Pr @ +125 °C) ΔR ±0.5 %
Packaging
............................................ 50 pcs./tube
** Power rating of 2.25 W when mounted free to air (no heat sink).
*** Available for most values. Check Popular Resistance Values table.
Typical Part Marking
221 30
R500 1%
902
COSTA RICA
MANUFACTURER'S
TRADEMARK
MODEL
NUMBER
RESISTANCE
CODE TOLERANCE
DATE CODE
COUNTRY
OF ORIGIN
221 30
25R0 1%
018
COSTA RICA
Popular Resistance Values
Code Resistance
Value Code Resistance
Value
R020 0.02 Ω*** 1000 100 Ω
R025 0.025 Ω*** 1200 120 Ω
R030 0.03 Ω*** 1500 150 Ω
R033 0.033 Ω*** 2000 200 Ω
R040 0.04 Ω*** 2500 250 Ω
R050 0.05 Ω*** 3000 300 Ω
R075 0.075 Ω*** 3300 330 Ω
R100 0.1 Ω 4000 400 Ω
R150 0.15 Ω 4700 470 Ω
R200 0.2 Ω 5000 500 Ω
R250 0.25 Ω 5600 560 Ω
R300 0.3 Ω 7500 750 Ω
R330 0.33 Ω 1001 1.0 KΩ
R400 0.4 Ω 1501 1.5 KΩ
R500 0.5 Ω 2001 2.0 KΩ
R750 0.75 Ω 2501 2.5 KΩ
1R00 1 Ω 3001 3.0 KΩ
1R50 1.5 Ω 3301 3.3 KΩ
2R00 2 Ω 4001 4.0 KΩ
2R50 2.5 Ω 5001 5.0 KΩ
3R00 3 Ω 7501 7.5 KΩ
3R30 3.3 Ω 1002 10 KΩ
4R00 4 Ω 1502 15 KΩ
5R00 5 Ω 2002 20 KΩ
7R50 7.5 Ω 2502 25 KΩ
8R00 8 Ω 3002 30 KΩ
10R0 10 Ω 3302 33 KΩ
12R0 12 Ω 4002 40 KΩ
15R0 15 Ω 4702 47 KΩ
20R0 20 Ω 5002 50 KΩ
25R0 25 Ω 5602 56 KΩ
27R0 27 Ω 6802 68 KΩ
30R0 30 Ω 7502 75 KΩ
33R0 33 Ω 8202 82 KΩ
40R0 40 Ω 1003 100 KΩ
47R0 47 Ω 1153 115 KΩ
50R0 50 Ω 1203 120 KΩ
56R0 56 Ω 1253 125 KΩ
75R0 75 Ω 1303 130 KΩ
*** 5 % Tolerance
*RoHS COMPLIANT
& AEC-Q200 QUALIFIED
10.41 ± 0.25
(.410 ± .010)
C
L
8.38 ± 0.25
(.330 ± .010)
CERAMIC
3.18 ± 0.1
(.125 ± .004)
DIA.
1.38 ± 0.25
(.054 ± .010)
3.18 ± 0.25
(.125 ± .010)
3.18 ± 0.25
(.125 ± .010)
2.92 ± 0.25
(.115 ± .010)
CERAMIC
2.54 ± 0.25
(.100 ± .010)
12.7 ± 1.27
(.500 ± .050)
16.26 ± 0.25
(.640 ± .010)
9.14 ± 0.25
(.360 ± .010)
CERAMIC
0.72 ± 0.12
(.029 ± .005) 1.03 ± 0.25
(.041 ± .010)
5.08 ± 0.25
(.200 ± .010)
1.02 ± 0.25
(.040 ± .010)
CERAMIC
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
PWR221T-30 Series Power Resistor
Pulse Power Rating
The energy absorbed by the resistor expressed in Joules can be calculated by
multiplying the peak power of the pulse in watts times the length of the pulse in
seconds.
The energy should not exceed the limits shown in the graph. The overload voltage
should not exceed 1.5 times the maximum operating voltage.
Product Dimensions
PWR 221 T - 30 - 10R0 F
Model
PWR = Power
Resistor
Package
220 = TO-220 Style
Pin Style
T = Through-hole
Power
30 = 30 W
Resistance Value
<100 ohms ... “R” represents decimal
point (examples: 7R50 =
7.5 Ω; R500 = 0.5 Ω)
≥100 ohms .... First three digits are
signifi cant, fourth digit
represents number of
zeros to follow (exam-
ples: 2000 = 200 ohms;
3002 = 30K ohms)
Absolute Tolerance
J = 5 %
F = 1 %
How to Order
Energy in Joules
Overload Duration in Seconds
10
100
1
0.1
0.01
10-6 10-5 10-4 10-3 10-2
DIMENSIONS: MM
(INCHES)
TOLERANCE: ± 0.38 UNLESS OTHERWISE NOTED
(0.015)
REV. 05/15
Derating Curve
Power Ratio (%)
Case Temperature (°C)
100
80
120
60
40
20
025 35 755545 95 105
65 85 115 125 135 145 150
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
PWR221T-30 Series Power Resistor
Asia-Pacifi c: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
EMEA: Tel: +36 88 520 390 • Fax: +36 88 520 211
The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Bourns:
PWR221T-30-1000F PWR221T-30-1000J PWR221T-30-1001F PWR221T-30-1001J PWR221T-30-1002F
PWR221T-30-1002J PWR221T-30-1003F PWR221T-30-1003J PWR221T-30-10R0F PWR221T-30-10R0J
PWR221T-30-1303F PWR221T-30-1303J PWR221T-30-15R0F PWR221T-30-15R0J PWR221T-30-1R00F
PWR221T-30-1R00J PWR221T-30-1R50F PWR221T-30-1R50J PWR221T-30-2000F PWR221T-30-2000J
PWR221T-30-20R0F PWR221T-30-20R0J PWR221T-30-2R00F PWR221T-30-2R00J PWR221T-30-2R20F
PWR221T-30-2R20J PWR221T-30-2R50F PWR221T-30-2R50J PWR221T-30-3002F PWR221T-30-3002J
PWR221T-30-30R0F PWR221T-30-30R0J PWR221T-30-3300F PWR221T-30-3300J PWR221T-30-3301F
PWR221T-30-3301J PWR221T-30-33R0F PWR221T-30-33R0J PWR221T-30-3R00F PWR221T-30-3R00J
PWR221T-30-3R30F PWR221T-30-3R30J PWR221T-30-4700F PWR221T-30-4700J PWR221T-30-47R0F
PWR221T-30-47R0J PWR221T-30-4R70F PWR221T-30-4R70J PWR221T-30-50R0F PWR221T-30-50R0J
PWR221T-30-56R0F PWR221T-30-56R0J PWR221T-30-5R00F PWR221T-30-5R00J PWR221T-30-7500F
PWR221T-30-7500J PWR221T-30-75R0F PWR221T-30-75R0J PWR221T-30-7R50F PWR221T-30-7R50J
PWR221T-30-8R20F PWR221T-30-8R20J PWR221T-30-R020J PWR221T-30-R050J PWR221T-30-R100J
PWR221T-30-R500F PWR221T-30-R500J PWR221T-30-R750F PWR221T-30-R750J PWR221T-30-R100F
PWR221T-30-25R0F PWR221T-30-1200F PWR221T-30-12R0F PWR221T-30-1501F PWR221T-30-1502F
PWR221T-30-2001F PWR221T-30-2002F PWR221T-30-2501F PWR221T-30-2502F PWR221T-30-3000F
PWR221T-30-3001F PWR221T-30-4000F PWR221T-30-4001F PWR221T-30-4002F PWR221T-30-40R0F
PWR221T-30-4702F PWR221T-30-4R00F PWR221T-30-5000F PWR221T-30-5001F PWR221T-30-5600F
PWR221T-30-7501F PWR221T-30-8R00F PWR221T-30-R030J PWR221T-30-R033J PWR221T-30-R040J
PWR221T-30-R150F PWR221T-30-R200F PWR221T-30-R250F PWR221T-30-R300F PWR221T-30-R330F
