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## Can you please share the Thermal Resistance Theta JC (Rjc), Theta JB (Rjb), Theta JA (Rja) & Maximum junction temperature value for part# S25FL128LAGNFV010 of WSON 5 x 6 package?

Thanks and Regards,

Jaiganesh, S

Solved! Go to Solution.

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Hi Jaiganesh,

I checked internally for your request and the updates values are as follows -

- Theta JA – 31.6 ℃/W
- Theta JB – 7.5 ℃/W
- Theta JC – 23.9 ℃/W

Best Regards,

Apurva

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Hi Jaiganesh,

Thank you for contacting Cypress Semiconductor.

You can calculate maximum operating junction temperature of our devices using below formula.

**Tj = Theta Ja * P + Ta**

Tj: Junction temperature

Theta Ja: Junction to ambient thermal resistance

P: Power consumption of the device (VCC (max) * ICC (max)).

Ta: Ambient temperature

Please see Theta Ja values for the requested device below -

**Theta Ja: 32 °C/W**

Please note that we do not provide the Theta JB and Theta JC values for our devices.

You can go through the following AN for more detailed information - https://www.cypress.com/file/210756/download

Best Regards,

Apurva

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Thanks for your quick response. I would like to inform you that we are planning to use your product (S25FL128LAGNFV010 of WSON 5 x 6 package) in one of our electronic equipment. To perform the thermal analysis to check the component temperature in operating conditions, we need thermal resistance value Rjc & Rjb. Please let me know if there is any way to get the information.

Thanks and Regards,

Jaiganesh, S

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I have seen that resistance values (Rjb & Rjc) of your product shared in CYPRESS community. Please see the below link.

Kindly let me know if there is any way to get the resistance information of part# S25FL128LAGNFV010 of WSON 5 x 6 package.

Thanks and Regards,

Jaiganesh,S

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Hi Jaiganesh,

I checked internally for your request and the updates values are as follows -

- Theta JA – 31.6 ℃/W
- Theta JB – 7.5 ℃/W
- Theta JC – 23.9 ℃/W

Best Regards,

Apurva