Datasheet
Z302 BV 20088
Vishay Draloric
www.vishay.com
90
Document Number 21020
Revision 02-Aug-02
For technical questions, contact ww1resistors@vishay.com
FEATURES
• Can operate as both a normal resistor and as a fuse .
• Fuses when overloaded by more than 100 times the rated
power
• Ceramic core
• Non flammable cement coating
• Mainly designed to customer requirements
ORDERING INFORMATION
Axial Cemented, Fusible, Wirewound Resistors
Z302 100R ± 5% BV 20088
MODEL RESISTANCE VALUE TOLERANCE PACKAGING
Ω± %
STANDARD ELECTRICAL SPECIFICATIONS
MODEL POWER STANDARD NOMINAL TEMPERATURE MAXIMUM MAXIMUM PERMISSIBLE FUSING
RATING TOLERANCE RESISTANCE
1)
COEFFICIENT PEAK PEAK l
2
x t VALUE
3)
l
2
x t VALUE
3)
P
40°C
(max) (typical) (typical) ENERGY
2)
POWER
2)
@ 40°C@ 40°C
W (max) ± % Ω ppm/°C Ws (max) W (max) A
2
s (min) A
2
s (min)
Z302 BV 20088 3 10 15 100 to 180 1.07 1875 0.07 0.27
5
Notes:
1)
Ambient temperature = 23°C
2)
Ambient temperature = 40°C
3)
Ambient temperature = 100°C
CHARACTERISTICS OF FUSIBLE RESISTORS
Fusible resistors are capable of acting as both a regular resistor and as a fuse when abnormal current comes in. Since the two
functions are performed by only one component the cost is lower.
The Z302 BV 20088 fuses when overloaded at more than 100 times the rated power. In line-powered devices, these fusible
resistors can be used to act as a fuse when malfunction occurs and line voltage drops across the resistor.
To prevent flames or explosion when fusing, the device has an inflammable construction with high dielectric strength. After fusing
the resistance value will be more than 100k ohm to realize sufficient circuit break. The components are mainly designed specifically
to customer requirements.
APPLICATIONS FOR FUSIBLE RESISTORS
• POWER SUPPLIES
• ENERGY SAVING LAMPS
• BATTERY CHARGES