Switching planar p-n-p silicon transistor for use in secondary power sources and switching devices. 2T505A transistor is built in metal case with glass insulators and flexible pins. Mass <= 2g.
Electrical parameters
Static collector-to-base current gain at Ucb=10 V, Ie=0.5A: T=+25 oC T=+125 oC, not less than T=-60 oC, not less than | 25…120*…140* 18 15 |
Beta cutoff at Ucb=10 V, Ie=0.05 A | 20…30*…40* MHz |
Critical voltage at Ie=10 A, ti=300 µs, Q = 100, not less than rating value | 250 V 270 V |
Collector-to-emitter saturation voltage at Ic= 0.5 A, Ib= 0.1 A | 0.15…0.7…1.8 V |
Base-to-emitter saturation voltage at Ic= 0.5 A, Ib= 0.1 A | 1.35…1.6…1.8 V |
Collector-to-base breakdown voltage at Icb0 = 0.5 mA, not less than rating value | 300 V 320 V |
Base-to-emitter breakdown voltage at Ibe=0.5 mA, not less than rating value | 5 V 6* V |
Turn-on delay at Uce=40V, Ic=0.2 A, Ib=0.02 A | 0.2*…0.25*…0.3 µs |
Turn-off delay at Uce=40V, Ic=0.2 A, Ib=0.02 A | 1.7*…2.7*…3.5 µs |
Discharge delay at Uce=40V, Ic=0.2 A, Ib=0.02 A | 0.7*…1.6*…2.6 µs |
Collector reverse current, not more than: T=+25 oC at Ucb=300 V T=+125 oC at Ucb=250 V | 100 µA 500 µA |
Emitter reverse current at Ueb=5V, not more than | 100 µA |
Collector capacitance at Ucb= 5 V | 27*…50*…70 pF |
Emitter capacitance at Ueb = 0.5 V | 320*…420*…500 pF |
Operational limits
Collector-to-base continuous voltage1 | 300 V |
Collector-to-emitter continuous voltage1 Rbe= 100 Ohm Rbe= ∞ | 300 V 250 V |
Emitter-to-base continuous voltage | 5 V |
Collector continuous current2 | 1 A |
Collector impulse current3 at ti = 2 µs, Q = 2 | 0.5 A |
Collector continuous dissipated power at Tc=-60…+25 oC with heatsink without heatsink | 5 W 1 W |
Thermal junction-to-ambient resistance | 150 oC/W |
Junction temperature | +175 oC |
Ambient air temperature | -60…Tk=+125 oC |
1 rate of reverse voltage rise dU/dt≤150 V/µs
2 without collector continuous dissipated power value surpassing
3 at Q > 2 use the following formula for current: Ici max= Ici max * Q A
4 at Tk> +25 oC maximum collector continuous dissipated power backs-off straight to 2 W with heatsink and 0.4 W without heatsink