WTB: EU/LT need stable 2.77k [SOLVED]

[rolkinas]

Hello,
I am looking for stable throughole 2.77k 0.125W - 0.25W resistor. Something like PTF56 series. will be used to repair Keithley 237 input attenuator.
Resistor tempco preferably not more than 5ppm/C
Looked in Farnell, Mouser, Avnet, Digikey, RS, TME, Distrilec, but unfortunately they have no stock of 2.77K . Only lead time of approx 20 weeks+
Let me know if you have one to sell !

[doktor pyta]

https://www.ebay.com/itm/2-87K-0-1-2ppm-0-5W-Very-High-Precision-Vishay-SFERNICE-Foil-resistor-RS92NA/182560470324?hash=item2a8173b534:g:-x0AAOSwCQZZC2ou
+ something in parallel


or


https://www.ebay.com/itm/2-49K-0-01-2ppm-0-5W-Very-High-Precision-Vishay-SFERNICE-Foil-resistor-RS92N/183259254308?hash=item2aab1a4e24:g:ouAAAOSwiHZbFktX
+ something in series

Additional resistors will have much less influence on overall precision/ tempco.

Best Regards BR

[andy3055]

2.74k/10ppm: https://www.mouser.com/ProductDetail/Vishay-Dale/PTF562K7400BYEB?qs=%2Fha2pyFadujqQRmiEONUX%2FpLKCFDHq9KKSMewnrNylQ%3D

2.8k/5ppm:https://www.mouser.com/ProductDetail/Vishay-Dale/PTF562K8000BZEK?qs=sGAEpiMZZMu61qfTUdNhG3EzrPz99APheBob8yPzMNs%3D

[rolkinas]

Thanks everyone for reply.
Just ordered 2.8k vishay. Unit needs calibration anyway (:

[andy3055]

If you need 2.77k, you can series parallel two sets of them.