PMA Datasheet, PDF (1/2 Pages) PowerDynamics, Inc – HIGH CURRENT, SCREW MOUNT FILTER WITH IEC 60320 AC INLET SOCKET.

Precision Resistor Type PMA
Spec Sheet R501-1/2 01/99
Technical data
resistance range
tolerances
temperature coefficient tcr ( R > 20mOhm )
applicable temperature range
load capacity
thermal resistance to ambiente
dielectric withstanding voltage
inductance
stability
2mOhm - 500mOhm
1%, 5%
< ±30ppm/K ( 20°C to 60°C )
-55°C to +125°C
3W
Rth < 10K/W
100VAC
< 10nH
deviation <0.5% after 2,000h
Remarks:
- Standard resistance values according to E12 with the additional values of 2 and 5
- Minimum quantity of other values on request
This resistor has been developed especially for current
sense applications in SMD-power modules.
The PMA has been designed for flip-chip mounting on the
pc-board. All standard soldering processes like reflow-,
infrared-, vapor phase-, dip- and wave-soldering can be
used.
The heat which is generated by the measuring current is
conducted very efficiently to the pc-board via the heat
conductive substrate and the solder joints.
∆R/R₂₀ [%]
0.2
-40 -20
20 40 60 80 100 120
T [^oC]
-0.2
-0.4
Temperature dependence of the electrical resistance
of ISA-PLAN resistors
P / P _Nom
1
0.75
0.5
0.25
stability: 0.5%
reduced
stability: 1%
0 20 40 60 80 100 120 140
terminal temperature T_K / [^oC]
pad size (bottom view)
power derating curve
RHOPOINT COMPONENTS LTD
Holland Road, Hurst Green, Oxted, Surrey, RH8 9AX, ENGLAND
Tel: [phone], Fax: [phone], Email: [e-mail] Website: www.rhopointcomponents.com