Data Sheet

ManualsBrandsTDK ManualsPTC ThermistorsTDK B59886-C120-A70 PTC thermistor 1500 Ω 1 pc(s)

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Table Of Contents

Cover

Symbols and terms

Symbol Term

A

Area

C

Capacitance

C

th

Heat capacity

f

Frequency

I

Current

I

max

Maximum current

I

R

Rated current

I

res

Residual current

I

PTC

PTC current

I

r

Residual currrent

I

r,oil

Residual currrent in oil (for level sensors)

I

r,air

Residual currrent in air (for level sensors)

I

RMS

Root-mean-square value of current

I

S

Switching current

I

Smax

Maximum switching current

LCT

Lower category temperature

N

Number (integer)

N

c

Operating cycles at V

max

, charging of capacitor

N

f

Switching cycles at V

max

, failure mode

P

Power

P

25

Maximum power at 25 °C

P

el

Electrical power

P

diss

Dissipation power

R

G

Generator internal resistance

R

min

Minimum resistance

R

R

Rated resistance @ rated temperature T

R

∆R

R

Tolerance of R

R

R

P

Parallel resistance

R

PTC

PTC resistance

R

ref

Reference resistance

R

S

Series resistance

R

25

Resistance at 25 °C

R

25,match

Resistance matching per reel/ packing unit at 25 °C

∆R

25

Tolerance of R

25

Overcurrent protection

Leaded disks, coated, 380 V up to 500 V

Page 7 of 10Please read Cautions and warnings and

Important notes at the end of this document.