******************* * BUK9K52-60RA RC thermal model j-mb * Foster RC network which is an * approximate fit to the datasheet Zth curve * created 04/12/2020 10:30:31 ******************* * .SUBCKT BUK9K52-60RA_Zth TJ MB Rth1 TJ 1 7.020493E-03 Cth1 TJ 1 1.267199E-05 Rth2 1 2 1.674832E-02 Cth2 1 2 6.745543E-05 Rth3 2 3 0.1023498 Cth3 2 3 9.692845E-05 Rth4 3 4 0.2229176 Cth4 3 4 4.23919E-04 Rth5 4 5 0.681379 Cth5 4 5 1.921114E-03 Rth6 5 6 3.348773 Cth6 5 6 2.080596E-03 Rth7 6 7 0.264812 Cth7 6 7 7.454957E-02 Rth8 7 MB 3.995461E-02 Cth8 7 MB 4.772774 .ENDS *******************************