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Toshiba Semiconductor TTC008(Q) — Discrete Semiconductors
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Toshiba Semiconductor / Discrete Semiconductors

Toshiba TTC008(Q) NPN transistor, 285V 1.5A TO-251

MPN TTC008(Q)
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Toshiba Semiconductor TTC008(Q) NPN transistor, 285 V Vceo, 1.5 A Ic, 1.1 W Pd, TO-251-3 Short Leads (IPak, TO-251AA), PW-MOLD2, Through Hole, Bulk.

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[SPEC] Essential Parameters Snapshot Full Specifications (11)
Package / Case TO-251-3 Short Leads, IPak, TO-251AA

Full Technical Specifications

11 Parameters
TTC008(Q) specifications
Parameter / AttributeSpecification / Value
MountingThrough Hole
FET typeNPN
Voltage - collector emitter breakdown285 V
Current - collector (Ic)1.5 A
Current - collector cutoff10µA (ICBO)
DC current gain (hFE) (Min) @ ic, vce80 @ 1mA, 5V
Power - max1.1 W
Operating temperature150°C (TJ)
PackageBulk
CaseTO-251-3 Short Leads, IPak, TO-251AA
Vce saturation (Max) @ ib, ic1V @ 62.5mA, 500mA
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Technical Details & Description

285 V NPN in a TO-251-3 leaded package

The TTC008(Q) is a 285 V, 1.5 A NPN transistor in a TO-251-3 Short Leads (IPak, TO-251AA) through-hole package, designated PW-MOLD2 by Toshiba. It is rated for 1.1 W maximum power dissipation at a junction temperature up to 150 °C.

Gain and saturation at low drive

Vce(sat) is specified at 1 V max with Ib = 62.5 mA and Ic = 500 mA, meaning it can saturate hard enough to keep conduction losses under 0.5 W at that point. Collector cutoff current (ICBO) is 10 µA max — leakage is low enough that it will not pull a load resistor in a high-impedance off-state circuit.

Frequently asked questions

What is TTC008(Q)'s package and mounting type?

The TTC008(Q) comes in a TO-251-3 Short Leads (IPak, TO-251AA) through-hole package, designated PW-MOLD2 by Toshiba. It ships in bulk.

What is the closest functional second-source to TTC008(Q)?

The TTC004B,Q is a close peer — same NPN polarity, same 1.5 A collector current rating, same TO-251-3 package, and a similar 160 V Vceo (vs 285 V for the TTC008). The TTC008 offers a higher breakdown voltage, while the TTC004 has a 10 W power rating versus 1.1 W. Pinout is the same, so it drops into the same board layout, but the voltage and power differences matter for the design margin.

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