2SD2137 Datasheet, PDF (3/3 Pages) Panasonic Semiconductor – Silicon NPN triple diffusion planar type(For power amplification)

Power Transistors
10000
1000
R_th(t) — t
Note: R_th was measured at Ta=25˚C and under natural convection.
(1) Without heat sink
(2) With a 50 × 50 × 2mm Al heat sink
100
(1)
(2)
10
1
0.1
10^–4
10^–3
10^–2
10^–1
1
10
10²
10³
10⁴
Time t (s)
2SD2137, 2SD2137A
3