Shindengen Electric Manufacturing Co., Ltd. (headquartered in Otemachi, Chiyoda-ku, Tokyo, Japan),
has developed and begun mass-producing in March 2009 the "K series" of 600 V fast recovery diodes (hereafter FRDs), ideal for current threshold mode PFC.
- The top class of efficiency for threshold PFC
- High IFSM resistance; first in the industry to guarantee tp = 1 ms
- Rich lineup (3 A to 30 A, single or center-tapped)
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1．Overview
We have developed a new series of FRDs ideal for current threshold mode PFC, the "K series". Through tests pursuing optimal values for trr (reverse recovery time) and VF(forward voltage), we have reduced case warming values by as much as 5 deg. Thus, we have improved efficiency compared to other companies' similar products and achieved environmental performance at the industry's top class. We have also achieved high reliability, guaranteed at high IFSM, as well as running ahead of the industry by putting into effect a tp = 1 ms guarantee, and otherwise have made a series that offers environmental performance along with safety and ease.
We shall continue to develop power device products responsive to customers' needs and to contribute to the protection of the global environment through high-efficiency devices.
2．Features
- Peak reverse voltage （VRM）600V
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Fig. 1 (ex.) SF10K60M peak surge current resistance |
- Output current（IO）3 A to 30 A
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- Junction temperature （Tj）150℃ guaranteed
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- Forward voltage（VF） 1.5V max.
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- Reverse recovery time (trr) 100ns max.
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- High IFSM; first in the industry to guarantee tp = 1 ms
IFSM-tp characteristic diagram included (see Fig. 1)
*Wave form observation of rush voltage allows judgment of whether it falls in the guarantee
based on the characteristic diagram at the right |
- Attains high efficiency (see Fig. 2)
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- Packages
TO-220 (full mold)
Lineup includes center tap for interleaved PFC
(see Fig. 3 for form diagrams) |
3．Warming Comparison
Fig. 2: Rise in case temperature |
4．Product Chart
| Product name |
Tj[℃] |
IO[A] |
VRM[V] |
VF(max.) [V] |
trr(max.)[ns] |
IFSM※[A] |
Form |
Notes |
| SF3K60M |
150 |
3 |
600 |
1.5 |
80 |
210 |
FTO-220AG |
Single |
| SF5K60M |
5 |
85 |
379 |
| SF8K60M |
8 |
90 |
473 |
| SF10K60M |
10 |
95 |
569 |
| SF10KC60M |
10 |
85 |
379 |
Center tap |
| SF20KC60M |
20 |
95 |
569 |
| S20K60T |
20 |
95 |
890 |
MTO-3PT |
Single |
| S30K60T |
30 |
100 |
1320 |
| ※IFSM :Pulse width 1 ms sine wave, non-repeating, Tj=25℃ |
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| FTO-220AG (Single) | FTO-220AG (center tap) | MTO-3PT (Single) |
Fig. 3: Form diagrams
5．Main Applications
- Current threshold mode PFC (rectifier)
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- Flyback power (secondary-side rectifiers)
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- DC-DC converters (rectifiers)
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- Other kinds of power circuits, etc.
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6．Production Plants
7．Production
8．Prices (sample)
- SF5K60M
| ： | 100yen |
- SF8K60M
| ： | 130yen |
- SF10K60M
| ： | 150yen |
- SF10KC60M
| ： | 150yen |
- SF20KC60M
| ： | 200yen |
9．Minimum Order Quantity
10．Contact
| Shindengen Electric Manufacturing Co., Ltd. |
| Electronic Device Div. Group Sales Marketing Dept. |
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| * Listed information were update on August 27th, 2009. |
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