FS: 0.1%, 0.25%, 0.5% - precise matched IRFP240/IRFP9240 - diyAudio
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Old 21st January 2017, 12:57 PM   #1
gnomcat is offline gnomcat  Bulgaria
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Join Date: Jun 2006
Location: Sofia
Default FS: 0.1%, 0.25%, 0.5% - precise matched IRFP240 / IRFP9240

This is limited quantity of 100% original, genuine Vishay Siliconix IRFP240 / IRFP9240.

This is a sets of precise matched (Vgs) IRFP240 and IRFP9240 power audio mosfet.
They are matched only P to P Channel and N to N channel.
The difference between P and N type is up to 120mV (typically 50-60mV).

Measurement Condition:
room temperature: 26.4 degrees Celsius
Id: 220mA
t measurement: 45 sec.


The measurement is performed in an air-conditioned room with a constant temperature. On the place of measurement no air flow from air onditioners. For power supply I use two modified super Jung regulators made by me (in Matrix shassis). After placing the measurement transistor into socket with button starts a timer. The drain current is 220mA. The timer is set to 45 seconds. On 45th second the timer stops and Vgs value remains stored in Agilent 34410A. After resetting the timer and clearing stored value of Vgs, begins measure the next transistor.

0.1% matched set: the measured tolerance is up to 1mV-2mV per type, but I guarantee up to 4mV for safety (< 0.1%).

0.25% matched set: the measured tolerance is up to 6mV-7mV per type, but I guarantee up to 10mV for safety (< 0.25%).

0.5% matched set: the measured tolerance is up to 10mV-15mV per type, but I guarantee up to 20mV for safety (< 0.5%).



Prices:

1. 4 pieces 0.1% matched transistors (2xIRFP240/2xIRFP9240) - EUR13 + EUR5 shipping

2. 8 pieces 0.1% matched transistors (4xIRFP240/4xIRFP9240) - EUR28 + EUR5 shipping

3. 16 pieces 0.1% matched transistors (8xIRFP240/8xIRFP9240) - EUR69 + EUR7 shipping

4. 24 pieces 0.1% matched transistors (12xIRFP240/12xIRFP9240) - EUR110 + EUR9 shipping

5. 40 pieces 0.1% matched transistors (20xIRFP240/20xIRFP9240) - EUR220 + EUR12 shipping
__________________________________________________ ___

6. 40 pieces 0.25% matched transistors (20xIRFP240/20xIRFP9240) - EUR170 + EUR12 shipping

7. 80 pieces 0.25% matched transistors (40xIRFP240/40xIRFP9240) - EUR360 + EUR16 shipping

8. 96 pieces 0.25% matched transistors (48xIRFP240/48xIRFP9240) - EUR440 + EUR18 shipping
__________________________________________________ ______

8. 96 pieces 0.5% matched transistors (48xIRFP240/48xIRFP9240) - EUR350 + EUR18 shipping

For more info look my ebay listings (ne3nauko). Prices here are lower.

I have and some measured and matched genuine Toshiba 2SK389BL and 2SJ109BL.

To contact me: PM
Payment by PayPal. I pay PayPal fee. This is a private sale. No commercial invoice.
Attached Images
File Type: jpg IRFP.jpg (394.8 KB, 154 views)
File Type: jpg matching.jpg (282.7 KB, 150 views)
File Type: jpg Vishay.jpg (249.8 KB, 147 views)
File Type: jpg 1.jpg (466.4 KB, 147 views)
File Type: jpg 3.jpg (545.0 KB, 149 views)
File Type: jpg photo.jpg (231.3 KB, 68 views)

Last edited by gnomcat; 21st February 2017 at 07:55 PM. Reason: title edit
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Old 26th January 2017, 05:31 AM   #2
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Location: Belgium the land of chocolate
What about 2 x 6 IRFP240 ?
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Old 26th January 2017, 06:45 PM   #3
gnomcat is offline gnomcat  Bulgaria
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Join Date: Jun 2006
Location: Sofia
0.1% matched - 2 separate sets x 6 pcs IRFP240: EUR46 + EUR5 shipping
0.1% matched - 1 set x 12 pcs IRFP240: EUR55 + EUR5 shipping

0.25% matched - 2 separate sets x 6 pcs IRFP240: EUR34 + EUR5 shipping
0.25% matched - 1 set x 12 pcs IRFP240: EUR43 + EUR5 shipping
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