AC01 Datasheet, PDF (2/24 Pages) NXP Semiconductors – Cemented wirewound resistors

BCcomponents
Product specification
Cemented wirewound resistors AC01/03/04/05/07/10/15/20
FEATURES
• High power dissipation in
small volume
• High pulse load handling
capabilities.
APPLICATIONS
• Ballast switching
• Shunt in small electric motors
• Power supplies.
DESCRIPTION
The resistor element is a resistive wire
which is wound in a single layer on a
ceramic rod. Metal caps are pressed
over the ends of the rod.
The ends of the resistance wire and the
leads are connected to the caps by
welding. Tinned copper-clad iron
leads with poor heat conductivity are
employed permitting the use of
relatively short leads to obtain stable
mounting without overheating the
solder joint.
The resistor is coated with a green
silicon cement which is not resistant to
aggressive fluxes. The coating is
non-flammable, will not drip even at
high overloads and is resistant to most
commonly used cleaning solvents, in
accordance with “MIL-STD-202E,
method 215” and “IEC 60068-2-45”.
QUICK REFERENCE DATA
DESCRIPTION
Resistance range
Resistance tolerance
Maximum permissible body temperature
Rated dissipation at T_amb = 40 °C
Rated dissipation at T_amb = 70 °C
Climatic category (IEC 60 068)
Basic specification
Stability after:
load, 1000 hours
climatic tests
short time overload
VALUE
AC01 AC03
0.1 Ω= 0.1 Ω
to
to
2.4 kΩ= 5.1 kΩ
1W 3W
0.9 W 2.5 W
AC04
0.1 Ω
to
6.8 kΩ
4W
3.5 W
AC05 AC07
0.1 Ω
to
10 kΩ
0.1 Ω
to
15 kΩ
±5%; E24 series
350 °C
5W 7W
4.7 W 5.8 W
40/200/56
IEC 60115-1
AC10 AC15
0.68 Ω 0.82 Ω
to
to
27 kΩ 39 kΩ
10 W 15 W
8.4 W 12.5 W
AC20
1.2 Ω
to
56 kΩ
20 W
16 W
∆R/R max.: ±5% + 0.1 Ω
∆R/R max.: ±1% + 0.05 Ω
∆R/R max.: ±2% + 0.1 Ω
2000 Oct 20
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