Semiconductors
&
Integrated Circuits,
PolySwitch
PPTC Resettable Fuses
(Over-Load Protection)
Possibly the Simplest and Easiest way to
protect your circuits from current over-load and short-circuit
occurrences.
 Whether it’s a new device you are building
or simply wish to add extra protection to your household or lab / trade
equipment -
these self –resetting fuses
are absolute “must have” components in your arsenal.
These
Thermistor Fuses have very low resistance in a normal conductive state
but once
tripped they quickly change to a high-resistance -
non-conductive state. They will stay in
tripped state until the device is turned off. Once the power is
switched off
the PPTC Thermistor returns to it’s normal conductive state.
RUEF
Series : 30 Volt Maximum Continuous
Voltage ;
All- 100A Maximum Fault Current
All values are given at 20C ambient
Temperature.
* Thermal De-Rating: the Holding Current
will decrease by approximately 3% at 40C Ambient Temperature
|
RUEF series -Body Markings:
|
UF110
|
UF185
|
UF300
|
UF400
|
UF500
|
UF700
|
UF900
|
GBU600
|
|
Holding Current* IH:
|
1.1A
|
1.85A
|
3A
|
4A
|
5A
|
7A
|
9A
|
6A
|
|
Tripping Current IT:
|
2.2A
|
3.7A
|
6A
|
8A
|
10A
|
14A
|
18A
|
12A
|
|
Typical Power
Dissipation PD:
|
0.7w
|
1w
|
2w
|
2.5w
|
3w
|
3.8w
|
4.2w
|
3.5w
|
|
Maximum Time-To-Trip -
@ at a given testing
current :
|
6.6
sec@
5.5A
|
8.7
sec@
9.2A
|
10.8
sec
@15A
|
12.7
sec
@20A
|
14.5
sec
@25A
|
17.5
sec
@35A
|
20
sec
@45A
|
|
|
Typical Resistance
at 20C Minimum – Maximum (Ohms)
|
0.07
to 0.1
|
0.03
to 0.06
|
0.02
To
0.05
|
0.01
to
0.03
|
0.01
to
0.03
|
0.005
to 0.02
|
0.005
to 0.01
|
0.005
-0.020
|
|
Maximum Resistance
1 Hour After Tripping: R1max (Ohms)
|
0.17
|
0.09
|
0.08
|
0.05
|
0.05
|
0.03
|
0.02
|
|
|
Physical Dimensions(approx):
|
5.5x11
x2mm
|
9x12
x2mm
|
10x14
x2.3mm
|
13x16
x2.3mm
|
13x21
x2.3mm
|
18x21
x2.5mm
|
23x25
x2.5mm
|
18x22
x2mm
|
|
Lead spacing :
|
5.5mm
|
9.5mm
|
9.5mm
|
|
Lead Size mm2 (AWG)
|
0.205mm2 (24)
|
0.52mm2
( 20 )
|
|
|
Price 1 – 5 pcs
|
0.60$
|
0.60$
|
0.60$
|
0.70$
|
0.80$
|
1.00$
|
1.20$
|
1.00$
|
|
Price 6 – 20 pcs
|
0.40$
|
0.45$
|
0.50$
|
0.52$
|
0.57$
|
0.70$
|
0.95$
|
0.80$
|
|
Price
21 – 100 pcs
|
0.33$
|
0.34$
|
0.37$
|
0.42$
|
0.45$
|
0.54$
|
0.70$
|
0.70$
|
RUSBF
Series : 60 / 72 Volt Maximum Continuous
Voltage
; All- 40A
Maximum Fault Current
Lead Spacing : 5mm
All values are given at 20C ambient
Temperature.
|
RUSBF
series -Body Markings :
|
XF010 (60v)
|
XF030 (72v)
|
XF050 (60v)
|
|
Holding
Current* IH:
|
0.1A
|
0.3A
|
0.5A
|
|
Tripping
Current IT:
|
0.2A
|
0.6A
|
1A
|
|
Typical
Power Dissipation PD:
|
0.38w
|
0.49w
|
2w
|
|
Maximum
Time-To-Trip -
@ at
a given testing current :
|
4 sec
@0.5A
|
3 sec
@1.5A
|
2.5
sec
@0.77A
|
|
Typ.Resistance Min – Max (Ohms)
|
2.5
to 4.5
|
0.88
to 1.33
|
0.5
to 0.77
|
|
Maximum
Resistance 1 Hour
After
Tripping : R1max (Ohms)
|
7.5
|
2.1
|
1.17
|
|
Physical
Dimensions (approx) :
|
4x5x2mm
|
5.5x6x2mm
|
6x7x2mm
|
Price :
1-5pcs – 0.60$ 6-20pcs
– 0.45$ 21-100pcs –
0.36$
RF250
Series : 250 Volt Maximum Continuous
Voltage ; Lead Spacing : 5mm
All values are given at 20C ambient
Temperature.
|
RF-250
series -Body Markings :
|
XF010 (60v)
|
XF030 (72v)
|
250 RF400
|
|
Holding
Current* IH:
|
90mA
|
145mA
|
400mA
|
|
Tripping
Current IT:
|
180mA
|
290mA
|
800mA
|
|
Physical
Dimensions (approx) :
|
5x6x3.6mm
|
6x7x3mm
|
8x8x2.8mm
|
Price : 1-5pcs – 0.70$
6-20pcs – 0.55$
21-100pcs – 0.42$
- ==============================================================
Heat-Shrinking
Flexible Polyolefin,
Flame-Retardant
Tubing
Very neat
and convenient way to insulate and secure things
like wires, terminals and anything else you can imagine…
Just cut a
desired length of this material, put it on and
apply heat from a heat-gun or hair-dryer, (or a flame). The HeatShrink will shrink in size and will tightly form
itself around the object.
These heat
shrinking tubes will reduce at least 50% in size
after applying heat (approximately 135 Degrees C)
Below is a
list of sizes and colours available in our
assortment :
The sizes
given are the diameters in the initial un-shrunk
state.
Diameter
Colour
available price
per meter
3mm
Clear
$
0.21 /m
5mm
Clear
$
0.34 /m
6mm
Black
$
0.52 /m
10mm
Black RGBY
$
0.57 /m
14mm
Black
RGBY
$
0.81 /m
20mm
Black Clear RGBY
$ 1.60 /m
23mm
Clear (heavy)
$
2.40 /m
25mm
Black
$
2.40 /m
35mm
Clear RGBY
$
3.30 /m
40mm
Black RGBY
$
3.90 /m
45mm
Clear (heavy)
$
5.00 /m
3mm Heat /Fire –Resistant Composite Insulating
Sleeve
300 C0 $
0.60 per metre.
For orders
over 10 metres(per size) or $20 dollars(in
total) there will be a further 20%
discount.
For orders
over 50 metres(per size) or $100 dollars(in
total) the discount will be 33%
|
