PWR221T-30-4R70J Bourns Inc., PWR221T-30-4R70J Datasheet
PWR221T-30-4R70J
Manufacturer Part Number
PWR221T-30-4R70J
Description
RES 4.70 OHM 5% 30W TO-220
Manufacturer
Bourns Inc.
Series
PWR221T-30r
Datasheet
1.PWR221T-30-8R20F.pdf
(2 pages)
Specifications of PWR221T-30-4R70J
Tolerance
±5%
Temperature Coefficient
±100ppm/°C
Resistance (ohms)
4.7
Number Of Terminations
2
Package / Case
TO-220-2
Power (watts)
30W
Composition
Thick Film
Features
Current Sense, Pulse Withstanding
Size / Dimension
0.410" L x 0.125" W (10.41mm x 3.18mm)
Height
0.760" (19.30mm)
Resistance
4.7 Ohms
Power Rating
30 Watts
Termination Style
Radial
Voltage Rating
2 KVolts
Operating Temperature Range
- 55 C to + 150 C
Dimensions
10.41 mm W x 16.26 mm L x 3.18 mm H
Lead Spacing
5.08 mm
Product
Thick Film Resistors Leaded
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PWR221T-30-4R70J
Manufacturer:
BOURNS/伯恩斯
Quantity:
20 000
** Power rating of 2.25 W when mounted free to air (no heat sink).
*** Available for most values. Check Standard Resistance Values table.
Bourns
current limiting, capacitor discharge or current measurement circuits in power supplies for telecom and industrial applications.
Parameter
Resistance (See table of standard values)
Power Rating @ 25 ˚C Case Temperature
Tolerance
TCR
Thermal Resistance - R thj
Inductance
Operating Voltage
Dielectric Strength
Insulation Resistance
Operating Temperature
Parameter
Short Term Overload (2x Pr for R < 2 Ω,
1.6 x Pr for R ≥ 2 Ω, V < 1.5 x Operating Voltage)
Load Life (2000 hours at rated power)
Thermal Shock (-55 ˚C to 155 ˚C, 5 cycles)
Resistance to Soldering Heat (10 seconds at 270 ˚C)
Vibration (20 G 10-2000 Hz .06 ” D.A.)
Terminal Strength (MIL-STD-202, Method 211
Test A1)
Shock (Saw Tooth: 100 g/6 ms)
Humidity (Steady State) 1000 hrs. 85 °C/85 % RH
High Temperature Exposure
(100 hrs - 40 % Pr @ +125 °C)
Derating Curve
General Information
Electrical & Thermal Characteristics
Reliability Characteristics
0.100 Ω<R<130.0K Ω
0.050 Ω<R<0.100 Ω
0.020 Ω<R<0.050 Ω
®
PWR221T-30 Series is a TO-220 style power resistor made using thick fi lm on alumina ceramic technology. It is used in
100
120
80
60
40
20
0
25
35
45
55
65
Case Temperature (°C)
75
85
PWR221T-30 Series Power Resistor
Features
■
■
■
■
■
95
TO-220 housing
Low inductance
Ceramic backplane
High power rating
RoHS compliant*
105
Specifi cation
ΔR
ΔR
ΔR
ΔR ±0.5 %
ΔR ±0.25 %
ΔR ±0.2 %
ΔR ±0.5 %
ΔR ±0.5 %
ΔR ±0.5 %
Value(s)
0.02 Ω to 130 KΩ
30 W**
±1 %***,
±100 PPM/˚C
±300 PPM/˚C
±600 PPM/˚C
4.2 ˚C/W
0.1 µH maximum
√P*R with a maximum of 250 V
2 KV AC
10 GΩ
-55 ˚C to +150 ˚C
115 125 135 145 150
±0.25 %
±1.0 %
±0.5 %
±5 %
Customers should verify actual device performance in their specifi c applications.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Applications
■
■
■
■
Resistor .................................. Thick fi lm
Substrate ......................Alumina (AL203)
Housing ........................................Epoxy
Pins ....................Tinned Copper (Sn/Cu)
Flammability ........Conforms to UL-94V0
............................................50 pcs./tube
*** 5 % Tolerance
MANUFACTURER'S
Power supplies
Motor drives
Test and measurement
Rectifi ers
Code
R020
R050
R100
R500
R750
1R00
1R50
2R00
2R20
2R50
3R00
3R30
4R70
5R00
7R50
8R20
10R0
15R0
Typical Part Marking
Material Characteristics
Packaging
Standard Resistance Values
Specifi cations are subject to change without notice.
TRADEMARK
RESISTANCE
Resistance
CODE
0.02***
0.05***
Value
0.75
0.1
0.5
1.5
2.2
2.5
3.3
4.7
7.5
8.2
10
15
1
2
3
5
COSTA RICA
221
R500 1%
Code
20R0
30R0
33R0
47R0
50R0
56R0
75R0
1000
2000
3300
4700
7500
1001
3301
1002
3002
1003
1303
902
30
Resistance
MODEL
NUMBER
TOLERANCE
DATE CODE
COUNTRY
OF ORIGIN
100000
130000
10000
33000
Value
7500
1000
3300
100
200
330
470
20
30
33
47
50
56
75
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PWR221T-30-4R70J Summary of contents
Page 1
... General Information ® Bourns PWR221T-30 Series is a TO-220 style power resistor made using thick fi alumina ceramic technology used in current limiting, capacitor discharge or current measurement circuits in power supplies for telecom and industrial applications. Electrical & Thermal Characteristics Parameter Resistance (See table of standard values) Power Rating @ 25 ˚ ...
Page 2
... PWR221T-30 Series Power Resistor Product Dimensions 10.41 ± 0.25 (.410 ± .010) 3.18 ± 0 (.125 ± .004) DIA. 12.7 ± 1.27 (.500 ± .050) 5.08 ± 0.25 (.200 ± .010) Pulse Power Rating 100 10 1 0.1 0. Overload Duration in Seconds 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 ...