English
Language : 

SI4974DY Datasheet, PDF (8/9 Pages) Vishay Siliconix – Dual N-Channel 30-V (D-S) MOSFET
Si4974DY
Vishay Siliconix
CHANNEL-2 TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted
2
1
Duty Cycle = 0.5
0.2
0.1
0.1
0.05
0.02
Single Pulse
0.01
10-4
10-3
2
1
Duty Cycle = 0.5
Notes:
PDM
t1
t2
1. Duty Cycle, D =
t1
t2
2. Per Unit Base = R thJA = 90 °C/W
3. T JM - TA = PDMZthJA(t)
4. Surface Mounted
10-2
10-1
1
10
100
600
Square Wave Pulse Duration (s)
Normalized Thermal Transient Impedance, Junction-to-Ambient
0.2
0.1
0.1
0.05
0.02
Single Pulse
0.01
10-4
10-3
10-2
10-1
1
10
Square Wave Pulse Duration (s)
Normalized Thermal Transient Impedance, Junction-to-Foot
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see www.vishay.com/ppg?73052.
www.vishay.com
8
Document Number: 73052
S09-0228-Rev. D, 09-Feb-09