B59202J0135B010 EPCOS Inc, B59202J0135B010 Datasheet - Page 4

• Manufacturer Part Number: B59202J0135B010
• Description: THERMISTOR PTC 56 OHMS 650V
• Manufacturer: EPCOS Inc
• Type: PTCr

Specifications of B59202J0135B010

• R @ 25°c: 56 Ohm
• Current - Steady State Max: 25A
• Tolerance: ±30%
• Lead Spacing: 0.400" (10.16mm)
• Mounting Style: Through Hole
• Screening Level: Automotive
• Resistance @ 25c: 56Ohm
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 125C
• Resistance: 56 Ohms
• Termination Style: Radial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Diameter: -
• R @ Current: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 495-3450; B59202J 135B 10; B59202J135B10

Calculation of the number of required PTC elements
Number of required PTC elements (connected in parallel) as function of capacitance and charging
voltage of smoothing or DC link capacitor:
N
C
V
C
T
T
In case of large N values the resulting resistance of the parallel PTC network might be too low for
effective limitation of the charging current. In this case a combination of series and parallel
connected PTC thermistors can be used.
Please read Cautions and warnings and
Important notes at the end of this document.
Self-protecting power resistors
PTC thermistors in plastic case
ref
A,max
th
Number of required PTC thermistors connected in parallel
Capacitance of smoothing or DC link capacitor in F
Charging voltage of capacitor in V
Heat capacity in J/K
Reference temperature of PTC in C
Expected maximum ambient temperature in C
Page 4 of 7
J201, J202, J204