ROHM QST6 User Guide and Manual
Summary
The QST6 Transistor is a high-performance semiconductor component designed primarily for low-frequency amplification and driving applications. This comprehensive technical manual provides engineers with essential absolute maximum ratings, detailed electrical characteristics (including hFE, fT, and saturation voltages), and performance curves necessary for reliable circuit design. It is an ideal resource for electronic designers requiring robust, stable transistor solutions in various signal processing circuits.
Page 1 Text Content
Transistors
Low frequency amplifier QST6
Application External dimensions (Unit : mm)
Low frequency amplifier Driver
Features 1) A collector current is large. 2) VCE(sat) : max. −180m V At IC= −1A / IB= −50m A
Each lead has same dimensions
Abbreviated symbol : T06
Absolute maximum ratings (Ta=25°C) Equivalent circuit
Parameter Symbol Limits Unit (4 (5 (6
Collector-base voltage VCBO −15 (4)(5)(6)
Collector-emitter voltage VCEO −12
Emitter-base voltage VEBO −6 IC −2
Collector current
ICP −4
Power dissipation PC
Junction temperature Tj °C Range of storage temperature Tstg −55 to +150 °C ∗1 Single pulse, PW=1ms ∗2 Each Termminal Mounted on a Recommended Mounted on a 25mm×25mm× 0.8mm ceramic substrate∗3
Electrical characteristics (Ta=25°C)
Parameter Symbol Min. Typ. Max. Unit Conditions
Collector-base breakdown voltage BVCBO −15 IC=−10µA
Collector-emitter breakdown voltage BVCEO −12 IC=−1m A
Emitter-base breakdown voltage BVEBO −6 IE=−10µA
Collector cutoff current ICBO −100 n A VCB=−15V
Emitter cutoff current IEBO −100 n A VEB=−6V
Collector-emitter saturation voltage VCE(sat) −120 −180 m V IC=−1A, IB=−50m A DC current gain h FE VCE=−2V, IC=−200m A Transition frequency f T MHz VCE=−2V, IE=200m A, f=100MHz
Collector output capacitance Cob p F VCB=−10V, IE=0A, f=1MHz
∗ Pulsed
Rev.A 1/2
Page Summary Contents For ROHM QST6 User Guide and Manual
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 3 |
| File Size | 64.96 KB |
| Published | June 21, 2026 |
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Frequently Asked Questions
What type of equipment is this transistor safest for use with?
It is designed for ordinary electronic equipment, like audio-visual or office-automation devices.
What are the absolute maximum limits for collector current and power dissipation?
The collector current (IC) must not exceed -2A, and power dissipation (Pc) must remain below 500 mW.
If I use this transistor in a critical safety device, what steps should I take?
You must consult a sales representative before using it if the malfunction affects life-sustaining equipment like medical or aerospace machinery.