K0900GURP

更新时间： 2024-02-21 13:27:31

品牌	Logo	应用领域
力特 - LITTELFUSE		双向触发二极管高压
页数	文件大小	规格书
7页	181K
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K0900GURP 数据手册

Sidac

Data Sheets

(a) Circuit

(b) Waveforms

SIDAC

≥ V

DC(IN)

- V

≤

max

≥

min

H (MIN)

Figure E9.15 Relaxation Oscillator Using a Sidac

Input

Voltage

t_w≈ 3 ms

V_CEMonitor

(See Note A)

0 V

t_w

(See Note B)

R_BB1

5 V

Collector

Current

0.63 A

100 mH

100 ms

2N6127

(or equivalent)

150 Ω

TIP-47

Input

50 Ω

Sidac V_BO

R_BB2

I_CMonitor

50 Ω

_CC= 20 V

100 Ω

Collector

Voltage

V_BB2=0

R_S= 0.1 Ω

10 V

V_BB1=10 V

V_CE(sat)

Test Circuit

Voltage and Current Waveforms

Note A: Input pulse width is increased until I

= 0.63 A.

Note B: Sidac (or Diac or series of Diacs) chosen so that V

is just below V rating of transistor to be protected.

CEO

The Sidac (or Diac) eliminates a reverse breakdown of the transistor in inductive switching circuits where otherwise the

transistor could be destroyed.

Figure E9.16 Sidac Added to Protect Transistor for Typical Transistor Inductive Load Switching Requirements

H.V.

Step-up

Transformer

Ballast

K2401F1

0.1 – 0.15 µF

220 V / 240 V

50 / 60 Hz

Metal

Halide

Lamp

5 – 6µH

5.6K – 8.2K

0.22 – 0.33µF

Figure E9.17 Typical Metal Halide Ignitor Circuit

http://www.littelfuse.com

+1 972-580-7777

E9 - 6

Thyristor Product Catalog

1...3 4 567

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