M
PL
IA
N
Features
■
Fuses safely at 220/240 mains voltage
■
Resistance values as high as 2.2K ohms
■
Flame-proof silicone coating
■
Low TCR
■
RoHS compliant*
■
Agency approval:
T
This series is
not recommended for new designs.
*R
oH
S
CO
PWR4522 Fusible Power Resistors
General Introduction
The PWR4522A Series of axial leaded wirewound resistors in a flameproof silicone coating are designed to fuse under abnormal
conditions such as sudden surges in voltage or circuit malfunctions. The resistor will fuse instantly upon the application of 220/240
mains voltage without flame or incandescent particles.
Electrical Characteristics
Characteristic
Power
Resistance Range
Tolerance
Temperature Coefficient
Operating Temperature Range
Maximum Voltage
Fusing Point
Fusing Time
Model
PWR4522
3W
8.2 ohms to 2.2K ohms (E12)
5%
±90 PPM/°C
-55 °C to +350 °C
√P*R
16X Rated Power
45 Seconds Max.**
Agency Approval
Description
UL
File Number: E349323
UL Approved at 120 Vac
** The resistor will fuse safely if 220/240 mains voltage is applied. The time to fuse depends
on the resistance value.
Product Dimensions
38.0 ± 1.5
(1.50 ± 0.06)
11.5
(0.45)
MAX.
For Standard Values Used in Capacitors, Inductors, and Resistors, click here.
E
T
E
L
O
S
B
O
Materials
120
100
80
60
40
20
0
Resistor ................ Wirewound around a
ceramic core
Lead Frame .....................Tinned copper
Housing ............ Flameproof thermocoat
Power Derating Curve
5.5
(0.22)
MAX.
0.8 ±0.05
(0.03 ± 0.002)
DIMENSIONS:
MM
(INCHES)
Power (%)
0
50
100
150
200
250
300
350
Ambient Temperature (°C)
How to Order
PWR 4522 A S 8R20 J A
Model
PWR = Power Resistor
Package
4522 = Size (0.45 x 0.22 inches)
Pin Style
A = Axial Through-hole
Version
S = Safety Version (Fuses without flames or explosion when 220/240 mains voltage is applied)
Resistance Value
R<100 ohms
“R” represents decimal point
R≥100 ohms
First three digits are significant, fourth digit represents number of zeros to follow
Resistance Tolerance
J = ±5 %
Packaging
A = Ammo Pack (750 pcs. per pack)
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications 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 specific applications.
Applications
■
White goods
■
Inverters
■
Lighting
■
Metering
PWR4522 Fusible Power Resistors
Environmental Characteristics
Test
Dielectric Withstanding Voltage
Description
Based on limiting voltage x 2 for 60 seconds
-55 °C +0 °C/-3 °C to room temperature to
+200 °C +3 °C/-0 °C, 5 cycles, with minimum
15 minutes at each cycle
Five times rated power for 5 seconds
As per IEC 60068 – 2 -20
Specification
ΔR
± (1 % +0.05
Ω)
- No flashover, mechani-
cal damage, arcing or insulation breakdown
±(2.0 % +0.05
Ω)
±(2.0 % +0.05
Ω)
Must meet all requirements
Thermal Shock
Short Time Overload
Solderability
Resistance to Solder Heat
Dielectric Strength
Insulation Resistance
Humidity
Load Life
Packaging Specifications
E
T
E
L
O
S
B
O
Test voltage >2X maximum voltage for greater
than 1 minute
Test voltage greater than 500 V rms for one
minute
+40 ˚C at 93 % RH for 1000 hours no load
+5 ˚C
Rated continuous voltage for 1000 hours
1 hour on and 0.5 hours off at a test
temperature of +70 °C ±2 °C
±(2.0 % +0.05
Ω)
>1000 GΩ
±(5.0 % +0.05
Ω)
±(5.0 % +0.05
Ω)
Ammo Pack Box
Master Box
275 x 100 x 110
(10.8 x 3.94 x 4.33)
10.0 ± 0.5
(0.39 ± 0.02)
Immersion in solder +260 °C to +270 ˚C for 10
±(0.5 % +0.05
Ω)
±0.5 seconds
Quantity
Ammo
Pack
750
Master
Box
6000
450 x 290 x 330
(17.72 x 11.42 x 12.99)
MM
(INCHES)
DIMENSIONS:
63.0 ± 2.0
(2.5 ± 0.08)
75.0 ± 2.0
(2.95 ± 0.08)
6.0 ± 1.0
(0.24 ± 0.04)
REV. 12/1
Specifications 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 specific applications.
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