14

NTC SMD Thermistors

With Nickel Barrier Termination NB 21 - NB 23

Types

NB 21

NB 23

IEC SIZE : 0603

IEC SIZE : 0402

Terminations

Nickel Barrier

Marking

On packaging only

Climatic category

40/125/56

Operating temperature

-55°C to +150°C

Tolerance on Rn (25°C)

±5%, ±10%, ±20%

Maximum dissipation at 25°C

0.07 W

0.06 W

Thermal dissipation factor

1 mW/°C

0.8 mW/°C

Thermal time constant

4 s

3 s

Chip thermistors are high quality and low cost devices

especially developed for surface mounting applications. They

are widely used for temperature compensation but can also

achieve temperature control of printed circuits.

A nickel barrier metallization provides outstanding qualities of

solderability and enables this chip to meet the requirements

of the most severe soldering processes.

APPLICATIONS

• LCD compensation

• Battery packs

• Mobile phones

• CD players

• Heating systems

• Air-conditioning systems

• Temperature control of Switch Mode Power Supplies

• Compensation of pressure sensors

• Protection of power transistors in various electronic circuits

1.6 (.063) 0.2 (.008)

0.8 (.031)

±0.2 (.008)

0.8 (.031)

±0.2 (.008)

0.2 (.008) min

0.2 (.008) min

1.0 ± 0.1 (0.04 ± 0.004)

0.40 ± 0.1

(0.02 ±0.004)

0.60 (0.024) max

0.25 (0.10) min

0.25 (0.10) min

Resistance - Temperature characteristics: pages 36 to 40.

HOW TO ORDER

NB 21

Type

K 0

Material Code

K

(See tables page 15)

0103

Resistance

10,000

Ω

M

Tolerance

M (±20%)

J (±5%)

K (±10%)

BB

Suffix: Packaging

– –: Bulk

BB: Cardboard tape

(180mm diam. reel)

BF: Cardboard tape (1/2 reel)

BD: Cardboard tape

(330mm diam. reel)

DIMENSIONS:

millimeters (inches)