About the KK Disc Fast Thyristor
The KK Disc Fast Thyristor is part of the ELEHPD Thyristor And Rectifier range. KK Disc Fast Thyristor from the ELEHPD Thyristor And Rectifier range. ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.
Typical applications
- Industrial control panels and PLC power rails
- LED drivers, signage and display power
- Battery charging and DC backup systems
- Motor drives, welding sets and rectifier assemblies
- Instrumentation and test equipment
How to specify the right Thyristor And Rectifier
- Size the output current with at least 20-30 % headroom over the load
- Check the input range covers the local supply, including brown-outs
- Confirm the enclosure and cooling method for the panel temperature
- Verify the protection set: over-current, over-voltage, thermal and short circuit
Specifications
![]()
| 快速晶闸管 Fast Thyristors (KK Disc model) |
|
型号
Type
|
VDRMVRRM |
IT(AV) |
tq |
dV/dt |
di/dt |
IDRMIRRM |
IGT |
VGT |
IH |
VTM/ITM |
RTH(j-hs) |
Tjm |
安装力 |
外形
Outline
（Fig） |
|
|
THS55℃ |
100℃ |
|
|
|
25℃ |
|
|
|
|
V |
A |
μs |
V/μs |
A/μs |
mA |
mA |
V |
mA |
V/A |
℃/W |
℃ |
KN |
|
KK200A |
600-2500 |
200 |
16-35 |
500 |
200 |
30 |
40-250 |
0.9-2.5 |
20-400 |
2.9/600 |
0.065 |
115 |
5.3-10 |
5/19 |
|
KK300A |
600-2500 |
300 |
16-35 |
500 |
200 |
30 |
40-250 |
0.9-2.5 |
20-400 |
2.8/900 |
0.055 |
115 |
5.3-10 |
20 |
|
KK400A |
600-2500 |
400 |
16-35 |
500 |
300 |
40 |
40-250 |
0.9-2.5 |
20-400 |
2.8/1200 |
0.040 |
115 |
10-20 |
2/7/21 |
|
KK500A |
600-2500 |
500 |
16-35 |
500 |
300 |
50 |
40-250 |
0.9-2.5 |
20-400 |
3.15/1500 |
0.035 |
115 |
15-20 |
2,7,21 |
|
KK600A |
600-2500 |
600 |
16-35 |
500 |
300 |
50 |
40-300 |
0.9-3.0 |
20-400 |
3.15/1800 |
0.032 |
115 |
15-20 |
1/8 |
|
KK800A |
600-2500 |
800 |
16-35 |
500 |
300 |
60 |
40-300 |
0.9-3.0 |
20-500 |
3.15/2400 |
0.030 |
115 |
18-25 |
1/8 |
|
KK1000A |
600-2500 |
1000 |
16-35 |
500 |
500 |
80 |
40-300 |
0.9-3.0 |
20-500 |
3.15/3000 |
0.024 |
115 |
19-26 |
9 |
|
KK1200A |
600-2500 |
1200 |
16-35 |
500 |
500 |
100 |
40-300 |
0.9-3.0 |
20-500 |
3.15/3000 |
0.022 |
115 |
21-30 |
10/11 |
|
KK1500A |
600-2500 |
1500 |
16-35 |
500 |
500 |
120 |
40-300 |
0.9-3.5 |
20-500 |
3.15/3000 |
0.020 |
115 |
21-30 |
10/11 |
|
KK1800A |
600-2500 |
1800 |
16-35 |
500 |
500 |
120 |
40-400 |
0.9-4.0 |
20-800 |
3.15/4000 |
0.017 |
115 |
27-34 |
12/13 |
|
KK2000A |
600-2500 |
2000 |
40-80 |
500 |
600 |
160 |
40-450 |
0.9-4.5 |
20-1000 |
3.15/4000 |
0.016 |
115 |
30-40 |
12/13/14/15 |
|
KK2500A |
600-2500 |
2500 |
40-80 |
500 |
600 |
200 |
40-450 |
0.9-4.5 |
20-1000 |
3.15/5000 |
0.011 |
115 |
35-47 |
12/13/14/15 |
|
KK3000A |
600-2500 |
3000 |
40-80 |
500 |
600 |
250 |
40-450 |
0.9-4.5 |
20-1000 |
3.15/5000 |
0.009 |
115 |
70-85 |
12/13/14/15 |
| 特点 |
典型应用 |
说明 |
| ■ 全扩散工艺 |
■ 逆变器 |
■ IGT、VGT、IH为25℃测试值，除非另作说明， |
| ■ 平板型陶瓷管封装 |
■ 斩波器 |
参数表中其它参数皆为在Tjm下的测试值 |
| ■ 分布式放大门极结构 |
■ 感应加热 |
■ I2t=I2TSM×tw/2:tw=正弦半波电流底宽。 |
| ■ 优良的动态特性 |
■ 各种类型的强迫换流器 |
在50Hz下，I2t=0.005I2TSM(A2S) |
| ■ 低开关损耗 |
|
■ 当使用在电流为60Hz情况下： |
| ■ 双面冷却 |
|
ITSM(8.3ms)=ITSM(10ms)×1.066,Tj=Tjm |
| ■ 快速开关性能 |
|
I2t(8.3ms)=I2t(10ms)×0.943,Tj=Tjm |
| |
|
■ 门极引线：白色或无色 |
| |
|
阴极引线（需要时）：红色 | | |
![]()
Frequently asked questions about the KK Disc Fast Thyristor
How much headroom should I leave on the power rating?
For continuous industrial duty plan on 20-30 % headroom above the measured load. For loads with high inrush, such as motors or capacitive input, allow more and check the surge rating rather than only the average current.
Do these units accept 110 V and 230 V mains?
Input ranges are model-specific and shown in the specification table. Where a wide-range input is available it is stated; otherwise send your mains voltage and we will match the model.
What protection features are built in?
Typical protection covers short circuit, over-current, over-voltage and thermal shutdown. The exact set is listed per model in the specification table above.
Can you supply matching DIN-rail or enclosed versions?
Open-frame, enclosed and DIN-rail variants exist across this family. Send the model you are working from and we will confirm the equivalent mounting option.
Further reading
