D998 Datasheet PDF – 120V, 10A, NPN Transistor, 2SD998 – KEC

This is one of the transistor types.

Part Number : D998

Function : 10A, 120V, NPN TRANSISTOR

Package : TO-3P(H)IS Type

Manufacturers : KEC

Image :

D998 datasheet

Description

This is 120V, 10A, Triple Diffused NPN Transistor.

Features :

1. Recommended for 45 ~ 50W Audio Frequency Amplifier Output Stage.
2. Complementary to KTB778.
3. Complement to type 2SB778

Pinouts for D998

D998 transistor

Maximum Rating ( Ta = 25°C )

1. Collector-Base Voltage : Vcbo = 120V
2. Collector-Emitter Voltage : Vceo = 120V
3. Emiiter-Base Voltage : Vebo = 5V
4. Collector Current : Ic = 10A
5. Base Current : Ib = 1.0A
6. Collector Power Dissipation : Pc = 80W
7. Junction Temperature : Tj = 150°C
8. Storage Temperature : Tsg = -55 ~ +150°C

 

Application :

1. High Power Amplifier

Other data sheets within the file : KTD998, 2SB778

D998 Datasheet

D998 pdf

 

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KIA494P Datasheet – PWM CONTROLLER IC – KEC

The KIA494P is controller ic.

Part Number : KIA494P

Function : PWM CONTROLLER IC / ( = TL494)

Package : DIP 16 Pin Type

Manufacturers : KEC

Image :
KIA494P KEC

Description :

The KIA494AP, KIA494AF incorporates on a single monolithic chip all the functions required in the construction of a pulse-width-modulation control circuit. Designed primarily for power supply control, this device offers the systems engineer the flexibility to tailor the power supply control circuitry to a specific application. The KIA494AP/AF contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V, 5%-precision requlator, and output-control circuits.

The error amplifiers exhibit a common-mode voltage range from -0.3V to Vcc -2V. The dead-time control comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator may be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it may drive the common circuits in synchronous multiple-rail power supplies.

The uncommitted output transistors provide either common-emitter or emitter-follower output capability. The KIA494AP / KIA494AF provides for push-pull or single-ended output operation, which may be selected through the output-control function. The architecture of this device prohibits the possibility of either output being pulse twice during push-pull operation.

KIA494P Datasheet KIA494AP

 

Reference PDF : https://www.ti.com/lit/ds/symlink/tl494.pdf

Reference Site : http://integral.rv.ua/st4.html

KIA494P Datasheet PDF