Temperature sensor for your ALU Heatbed MK3

• Manufacturer: Epcos
• Partno: 57621C104J62
• Type: Thermistor - NTC
• Resistance: 100 kOhm
• Beta Value (B_25/50): 3870K
• Beta Value (B_25/85): 3930K
• Beta Value (B_25/100): 3950K
• R/T table no.: 4901
• Power Rating: 200 mW
• Tolerance: 5 %
• Termination Style: SMD/SMT
• Operating Temperature Range: - 55 C to + 125 C
• Current Rating: 0.1 mA
• Package/Case: 1206

 In Marlin the closest matching thermistor tables is 1 or 5

The excact calculated data for Marlin in case you'd like to modify thermistortables.h

{270*OVERSAMPLENR ,155 },
{293*OVERSAMPLENR ,150 },
{319*OVERSAMPLENR ,145 },
{346*OVERSAMPLENR ,140 },
{375*OVERSAMPLENR ,135 },
{405*OVERSAMPLENR ,130 },
{437*OVERSAMPLENR ,125 },
{470*OVERSAMPLENR ,120 },
{505*OVERSAMPLENR ,115 },
{540*OVERSAMPLENR ,110 },
{575*OVERSAMPLENR ,105 },
{611*OVERSAMPLENR ,100 },
{647*OVERSAMPLENR ,95 },
{682*OVERSAMPLENR ,90 },
{717*OVERSAMPLENR ,85 },
{750*OVERSAMPLENR ,80 },
{781*OVERSAMPLENR ,75 },
{811*OVERSAMPLENR ,70 },
{838*OVERSAMPLENR ,65 },
{863*OVERSAMPLENR ,60 },
{886*OVERSAMPLENR ,55 },
{907*OVERSAMPLENR ,50 },
{925*OVERSAMPLENR ,45 },
{941*OVERSAMPLENR ,40 },
{955*OVERSAMPLENR ,35 },
{967*OVERSAMPLENR ,30 },
{977*OVERSAMPLENR ,25 },
{986*OVERSAMPLENR ,20 },
{993*OVERSAMPLENR ,15 },
{999*OVERSAMPLENR ,10 },
{1004*OVERSAMPLENR ,5 },
{1008*OVERSAMPLENR ,0 }