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NTC Thermistors SMD

NTC Thermistors SMD
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• All specifications are subject to change without notice. • Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications. NTCG series NTC Thermistors SMD Type: Issue date: NTCG06(0603) NTCG10(1005) NTCG16(1608) NTCG20(2012) May 2009

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(1/13) 010-01 / 20090528 / eb221_ntcg.fm • All specifications are subject to change without notice. NTC Thermistors NTCG Series(SMD, Pb Free) NTCG06/10/16/20 Types NTC(Negative Temperature Coefficient) Thermistors are manufactured from sintered metal oxides. Each thermistor consists of a combination of two to four of the following materials: Manganese, Nickel, Cobalt and Copper. NTC thermistors are semiconductor resistors that exhibit decreasing resistance characteristics with increasing temperature. TDK thermistors have low thermal time constants which result in extremely high rates of...

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(2/13) 010-01 / 20090528 / eb221_ntcg.fm • All specifications are subject to change without notice. SHAPES AND DIMENSIONS Dimensions in mm RECOMMENDED PC BOARD PATTERN Dimensions in mm STRUCTURAL DIAGRAM RECOMMENDED REFLOW SOLDERING CONDITIONS Type L W T B 0603 0.6±0.03 0.3±0.03 0.3±0.03 0.1 min. 1005 1±0.05 0.5±0.05 0.5±0.05 0.1 min. 1608 1.6±0.1 0.8±0.1 0.8±0.1 0.2 min. 2012 2±0.2 1.25±0.2 0.7±0.2 0.2 min. Type a b c 0603 0.25 to 0.35 0.2 to 0.3 0.25 to 0.35 1005 0.3 to 0.5 0.35 to 0.45 0.4 to 0.6 1608 0.6 to 0.8 0.6 to 0.8 0.6 to 0.8 2012 0.9 to 1.2 0.7 to 0.9 0.9 to 1.2 L T W Electrode...

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(3/13) 010-01 / 20090528 / eb221_ntcg.fm • All specifications are subject to change without notice. RESISTANCE VALUE RANGE TYPICAL USED SET AND TDK PRODUCT NAMES LIST OF SERIES BY TYPE The B constant indicates the magnitude of a change in a zero-load resistance value to a temperature, and is obtained based on arbitrary two temperatures in resistance-to-temperature characteristics. B constant calculation formula B: B Constant (K) T1: Arbitrary temperature (K) T2: Arbitrary temperature different from T1 (K) R1: Zero-load resistance value at temperature T1(Ù) R2: Zero-load resistance value at...

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(4/13) 010-01 / 20090528 / eb221_ntcg.fm • All specifications are subject to change without notice. PRODUCT IDENTIFICATION (1) NTC thermistor (2) Structural classification (3) Shapes and dimensions code (4) B constant This code indicates the value of B constant using a combination of one numeric character and one alphabetic character. (5) B constant tolerance (6) Nominal resistance The resistance is expressed in three digit codes and in units of Ù. The first and second digits: Effective number The third digit: Number of 0 which following the effective number. (7) Nominal resistance...

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(13/13) 010-01 / 20090528 / eb221_ntcg.fm • All specifications are subject to change without notice. CIRCUIT EXAMPLES 1. CELLULAR PHONE 1.1 LCD, Adjustment of contrast 1.2 TCXO, Frequency compensation of crystal 1.3 Power amp. module, 1.4 Temperature monitor Control of voltage 2. HARD DISK DRIVE Chip NTC thermistor NTCG1005, 1608 types Resistance tolerance: ±3 to ±5%/B constant tolerance: ±2 to ±3% Temperature sensor IC NTC thermistor (Cost: about 50% down) Voltage vs. temperature characteristics 3. BATTERY PACK Control circuit for quick charge battery 1.2 TCXO 1.1 LCD 1.3 Power amp module...

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