SMD Zener Diode
Page 4
Lead length to heatsink, L , (inches)
Fig.3- Typical thermal resistance v.s. lead length
AQW-BZ003
Temperature coefficient, (mV/°C)
Fig.2- Temperature coefficients v.s. Zener voltage
Zener voltage,Vz, (V)
Power dissipation, PD, (W)
Fig.1- Power temperature derating current
Lead Temperature, (°C)
0
5.0
4.0
3.0
2.0
0 175125100755025 150
RATING AND CHARACTERISTIC CURVES (ACZRC5340B-G Thru. ACZRC5388B-G)
REV: B
Junction to lead thermal resistance,
0
10
20
40
0
0.2 0.4 0.8
1.00.9
0.70.30.1
30
0.5
0.6
1.0 100
1
10
100
Fig.5- Typical thermal response L, lead length=3/8 inch
Time, t , (s)
10
100
0.1
1
Junction to lead triensient resistance
ΘJL(t,D), (°C/W)
Comchip Technology CO., LTD.
1.0
Range
Pulse width, (ms)
10010 1
Fig.4 - Maximum surge power
1
10
100
Peak surge power , Ppk, (W)
1000
ΘJL, (°C/W)
D=0.5
D=0.2
D=0.1
D=0.0
5
D
=0.0
1
D
=
0
Note: D=Note:Below 0.1 second,
Thermal response curve is
Single pulse ΔTJL-ΘJL(t)Ppk
repctitive pulse ΔTJL=ΘJL(t,D)Ppk
applicable to any lead length(L)
0.10.01 0.001 1 10 100
Company reserves the right to improve product design , functions and reliability without notice.
