The known hard to get parts of J2 are the semisouth and 2SJ74.
I have both of them, but 2SJ74 are waiting to be matched.
You can get the Semisouth R100 now or wait for me to finish matching my 2SJ74, which should take one month or so.
UPDATES:
The following items should be available after 1st May
Toshiba 2SK170-GR tape same price as 170BL/V, $1 donation for every 100 pcs sold. Free shipping with min 100pc purchase
NS LME49830TB chipamp $15/pair(2 piece), $0.50 donation for every pair sold
AD1862N-K DAC $40/ea, $1 donation for every piece sold
Free shipping for all order over $50.
Taking orders now.
I have both of them, but 2SJ74 are waiting to be matched.
You can get the Semisouth R100 now or wait for me to finish matching my 2SJ74, which should take one month or so.
UPDATES:
The following items should be available after 1st May
Toshiba 2SK170-GR tape same price as 170BL/V, $1 donation for every 100 pcs sold. Free shipping with min 100pc purchase
NS LME49830TB chipamp $15/pair(2 piece), $0.50 donation for every pair sold
AD1862N-K DAC $40/ea, $1 donation for every piece sold
Free shipping for all order over $50.
Taking orders now.
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I'm thinking about $6/pair (1 piece each of J74 & K170), $12/quad(2 each).
Matching will be guaranteed to be <10mV for quad, but typically it will be <5mV.
Free shipping for orders of $50 or above.
Matched J74 only pair or quad will cost more, as 2SK170 is practically "free" when compared to 2SJ74.
I'm also planning to donate $0.25 for every 2 pcs of matched J74.
Matching will be guaranteed to be <10mV for quad, but typically it will be <5mV.
Free shipping for orders of $50 or above.
Matched J74 only pair or quad will cost more, as 2SK170 is practically "free" when compared to 2SJ74.
I'm also planning to donate $0.25 for every 2 pcs of matched J74.
Thanks Zhou!
Hello Zhou,
I just wanted to let you know that the JFETs arrived yesterday, I just picked them up at the local post office. Awesome packaging!
For all intents and purposes I now have a lifetime supply of 2sk170, sweet, now to find some money for the upcoming 2sj74's....
Thanks very much,
Scott
Hello Zhou,
I just wanted to let you know that the JFETs arrived yesterday, I just picked them up at the local post office. Awesome packaging!
For all intents and purposes I now have a lifetime supply of 2sk170, sweet, now to find some money for the upcoming 2sj74's....
Thanks very much,
Scott
Kerafol Keratherm Red 86/83 Isolators TO-247 is here.
Fits TO-247 and TO-264, that includes IRFP240/9240, Toshiba 2SK1530 and all the common big power device.
Shown in 3rd image are Toshiba 2SK1530 and SemiSouth R550.
Price $1 each, sold in multiples of 4s only.
As usual, free shipping for order > $50 or with purchase of any free shipping items.
Fits TO-247 and TO-264, that includes IRFP240/9240, Toshiba 2SK1530 and all the common big power device.
Shown in 3rd image are Toshiba 2SK1530 and SemiSouth R550.
Price $1 each, sold in multiples of 4s only.
As usual, free shipping for order > $50 or with purchase of any free shipping items.
Attachments
Jfet shipped today:
normundss K170BL*100 donation:$1
name_hase K170BL*100 R100*4 donation:$3
donation from this shipment: $4
Donation pending from last time: $75
Current donation pending: $79
I will wait for the amount to reach $100 before actually donating it to the forum, this will reduce the amount that goes to paypal.
normundss K170BL*100 donation:$1
name_hase K170BL*100 R100*4 donation:$3
donation from this shipment: $4
Donation pending from last time: $75
Current donation pending: $79
I will wait for the amount to reach $100 before actually donating it to the forum, this will reduce the amount that goes to paypal.
Hi HaflerFreak,
I'm sorry that I have been rather busy for the month of Apr, plus my HP/Agilent power supply is giving me some problems, thus need to get it replace before more matching work can proceed.
I'm holding on to a full box of 2SJ74 and much more K170, so it will take me quite some time to match them.
I will try to get them matched by early June.
Don't worry, once they are released you will definitely be served.
I'm sorry that I have been rather busy for the month of Apr, plus my HP/Agilent power supply is giving me some problems, thus need to get it replace before more matching work can proceed.
I'm holding on to a full box of 2SJ74 and much more K170, so it will take me quite some time to match them.
I will try to get them matched by early June.
Don't worry, once they are released you will definitely be served.
new parts in:
Toshiba 2SK170-GR unmatched cut-tape, same price as GR and V grade, can mix and match in min 50 pcs each.
AD1865N-K $45 first piece, $40 per additional piece, $1/pc donatin, Free shipping
National Semi ChipAMP LME49830TB, $7.50/each, $0.25/pc donation.
Toshiba 2SK170-GR unmatched cut-tape, same price as GR and V grade, can mix and match in min 50 pcs each.
AD1865N-K $45 first piece, $40 per additional piece, $1/pc donatin, Free shipping
National Semi ChipAMP LME49830TB, $7.50/each, $0.25/pc donation.
Attachments
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An update to the list of items available now and coming soon:
Available now:
Toshiba 2SK170-GR unmatched cut-tape
Toshiba 2SK170-V unmatched cut-tape
Toshiba 2SJ103-BL unmatched bulk
Toshiba 2SK369-BL unmatched cut-tape
Semisouth SiC JFET SJEP120R100 matched
Semisouth SiC JFET SJEP170R550, late April
Kerafol Keratherm Red Isolators (TO-247/264), $1 each, multple of 4 only
Analog Device DAC AD1865N-K, $45 1st piece, $40 per additional piece, $1/pc donatin, Free shipping
National Semi ChipAMP LME49830TB, $7.50/each, $0.25/pc donation.
Stock available, but waiting to be matched
Toshiba 2SK1530-Y/2SJ201-Y, Next week maybe
2SJ74-BL matched, late May (J74 to be sold as matched only, both with itself and with 2SK170)
On the way:
Renesas lateral MOSFET 2SJ1058-E/2SJ162-E, early June
Vishay IRFP240PBF/IRFP9240 matched, mid Aug
Toshiba 2SK246-BL, mid June
Toshiba 2SK170-GR, TBA
Vishay IRF610/9610PBF matched, late Oct
Vishay IRFP044PBF matched, late Oct
Alps RK27 Dual 20kohm, TBA
Alps RK27 Quad 50kohm, TBA
Kemet/Evox Rifa PEH169 105degC 100mC 40V, TBA
Available now:
Toshiba 2SK170-GR unmatched cut-tape
Toshiba 2SK170-V unmatched cut-tape
Toshiba 2SJ103-BL unmatched bulk
Toshiba 2SK369-BL unmatched cut-tape
Semisouth SiC JFET SJEP120R100 matched
Semisouth SiC JFET SJEP170R550, late April
Kerafol Keratherm Red Isolators (TO-247/264), $1 each, multple of 4 only
Analog Device DAC AD1865N-K, $45 1st piece, $40 per additional piece, $1/pc donatin, Free shipping
National Semi ChipAMP LME49830TB, $7.50/each, $0.25/pc donation.
Stock available, but waiting to be matched
Toshiba 2SK1530-Y/2SJ201-Y, Next week maybe
2SJ74-BL matched, late May (J74 to be sold as matched only, both with itself and with 2SK170)
On the way:
Renesas lateral MOSFET 2SJ1058-E/2SJ162-E, early June
Vishay IRFP240PBF/IRFP9240 matched, mid Aug
Toshiba 2SK246-BL, mid June
Toshiba 2SK170-GR, TBA
Vishay IRF610/9610PBF matched, late Oct
Vishay IRFP044PBF matched, late Oct
Alps RK27 Dual 20kohm, TBA
Alps RK27 Quad 50kohm, TBA
Kemet/Evox Rifa PEH169 105degC 100mC 40V, TBA
Jfet shipped today:
dsdjoy R100*4 Keratherm*8 donation:$2
bango AD1865N-K donation:$1
prakit 2sk170-V *100 donation:$1
LBHajdu R100*4 donation:$2
donation from this shipment: $6
Donation pending from last time: $79
Current donation pending: $85
I will wait for the amount to reach $100 before actually donating it to the forum, this will reduce the amount that goes to paypal.
Come on guys, close to the $100 mark!
dsdjoy R100*4 Keratherm*8 donation:$2
bango AD1865N-K donation:$1
prakit 2sk170-V *100 donation:$1
LBHajdu R100*4 donation:$2
donation from this shipment: $6
Donation pending from last time: $79
Current donation pending: $85
I will wait for the amount to reach $100 before actually donating it to the forum, this will reduce the amount that goes to paypal.
Come on guys, close to the $100 mark!
Toshiba 2SK1530 2SJ201 are available for sale!
Price as follow:
Value match: $14/pair(1 each), $7/pc for 2SK1530, $8/pc for 2SJ201
Precision match: $16/pair(1 each), $8/pc for 2SK1530, $9/pc for 2SJ201
P-N match: $24/pair(1 each)
Free shipping for order >$50.
I will donate $0.50/pair (or per 2 pcs) to the forum.
Matching standard
Matching are done by connecting the Drain and Gate, Vgs measured at Id=500mA after temperature stabilise.
Value match: All N FET matched with N FET, P FET matched with P FET, no matching between N and P. Matched to <50mV for group size<25 (25 pairs, 25*K1530, or 25*J201).
Precision match: All N FET matched with N FET, P FET matched with P FET, no matching between N and P. Matched to <10mV for group size<10, or <20mV for group size<25.
P-N match: Matching between N and P as well, Matched to <10mV for 8 pairs or less, ask for availability.
All 2SK1530 and 2SJ201 are sourced from Toshiba authrised distributor in Singapore.
I will recommend the German made Kerafol Keratherm Red 86/83 Isolators TO-247 $1/ea to go with the Toshiba FET, they are high performance and easy to use. Much better than sil-pad or mica.
Price as follow:
Value match: $14/pair(1 each), $7/pc for 2SK1530, $8/pc for 2SJ201
Precision match: $16/pair(1 each), $8/pc for 2SK1530, $9/pc for 2SJ201
P-N match: $24/pair(1 each)
Free shipping for order >$50.
I will donate $0.50/pair (or per 2 pcs) to the forum.
Matching standard
Matching are done by connecting the Drain and Gate, Vgs measured at Id=500mA after temperature stabilise.
Value match: All N FET matched with N FET, P FET matched with P FET, no matching between N and P. Matched to <50mV for group size<25 (25 pairs, 25*K1530, or 25*J201).
Precision match: All N FET matched with N FET, P FET matched with P FET, no matching between N and P. Matched to <10mV for group size<10, or <20mV for group size<25.
P-N match: Matching between N and P as well, Matched to <10mV for 8 pairs or less, ask for availability.
All 2SK1530 and 2SJ201 are sourced from Toshiba authrised distributor in Singapore.
I will recommend the German made Kerafol Keratherm Red 86/83 Isolators TO-247 $1/ea to go with the Toshiba FET, they are high performance and easy to use. Much better than sil-pad or mica.
Hi Zoufang,
Just to confirm, a balanced F5 would need (4)x2sj201 + (4)x2sk1530 all matched for a total of $96, correct?
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