PKC-136 STMicroelectronics, PKC-136 Datasheet - Page 3

• Manufacturer Part Number: PKC-136
• Description: DIODE TVS 160V/700V DO-15
• Manufacturer: STMicroelectronics
• Series: PKC-136r

Specifications of PKC-136

• Voltage - Clamping: 160V
• Technology: Mixed Technology
• Power (watts): 1.5W
• Number Of Circuits: 1
• Applications: Overload Protection
• Package / Case: DO-204AC, DO-15, Axial
• Mounting Style: Through Hole
• Breakdown Voltage Range: 150V To 170V
• Peak Pulse Current Ippm: 2.7A
• Diode Case Style: DO-15
• No. Of Pins: 2
• Power Dissipation Pd: 1.5W
• Termination Type: Axial Leaded
• Capacitance, Cd: 35pF
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Working: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-3138-3

THERMAL RESISTANCES
Note 1: Device mounted on a epoxy FR4 board of 35µm thickness
Lead Length: 10mm
Pad diameter: 4mm
Track width: 1mm
Track length: 25mm
The Rth
S(Cu) = 1.5cm
S(Cu) = 3.5cm
Fig. 3: Average power dissipation versus ambient
temperature.
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
Fig. 1: Peak pulse power versus exponential pulse
duration.
1.E+02
1.E+01
1.E+00
1.E-01
Symbol
0
R
P(W)
R
1.E-04
th(j-a)
th(j-l)
Pp(kW)
(j-a)
25
can be reduced by replacing the Cu track by plan:
Junction to leads
Junction to ambiant condition see note 1
1.E-03
Printed circuit board
2
2
/lead
/lead
Tamb =Tleads
50
1.E-02
Tamb(°C)
R
R
tp(ms)
th(j-a)
th(j-a)
75
1.E-01
= 65°C/W
= 60°C/W
100
L = 10mm
Parameter
1.E+00
Tj initial=25°C
125
1.E+01
150
Fig. 4: Variation of thermal impedance junction to
ambient versus pulse duration (printed circuit
board epoxy FR4)
1000.0
Fig. 2: Relative variation of peak pulse power
versus initial junction temperature.
110
100
100.0
90
80
70
60
50
40
30
20
10
10.0
0
1.0
0
1.E-02
%
Zth(j-a) (°C/W)
Free air
25
1.E-01
50
1.E+00
75
Tj(°C)
tp(s)
Value
105
40
100
1.E+01
125
1.E+02
PKC-136
150
°C/W
°C/W
Unit
1.E+03
3/5
175