ordering_code| Datasheet

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General Technical Information

How to determine the ordering code for SMD NTC thermistors

A component and the packing in which it is to be delivered are unambiguously defined by the ordering code (part number), which has up to 15 digits. For all NTC thermistors the ordering codes are explicitly stated (together with the corresponding tolerance and/or packing variants) in the data sheets. Should there be any doubt about the coding system, however, then it is better to order the component using a plain text description (i.e. without a code). In this case, the translation into the part number, which is required for internal handling of the order, will be done by us. The components are delivered by part numbers only. SMD NTC thermistors with nickel barrier termination Example: Chip size 0603, B25/100 = 3550 K 3%, R 25 = 100 5%, cardboard tape, 180-mm reel

B57
NTC thermistor

101

2 = EIA chip size 0402 3 = EIA chip size 0603 4 = EIA chip size 0805 B value/tolerance code: B tolerance 3% 2% 1,5% 11 21 31 12 22 32 13 23 33

B25/100 3550 K 4000 K 4500 K

Multilayer SMD NTC thermistor Termination type: 2 = Ag/Ni/Sn Resistance at rated temp. (25 C): 101 = 10 101 = 100 Resistance tolerance: J = 5% K = 10% A = customer-specific Internal coding Packaging codes: 60 = cardboard tape, 180-mm reel 62 = blister tape, 180-mm reel 70 = cardboard tape, 330-mm reel 72 = blister tape, 330-mm reel

05/02