公开(公告)号：US20220301748A1

公开(公告)日：2022-09-22

申请号：US17635841

申请日：2020-09-28

Applicant: TDK CORPORATION

Inventor： Daisuke TSUCHIDA ,  Takehiko ABE ,  Yoshihiko SATOH ,  Koki YAMADA

IPC: H01C1/14 ,  H01C7/04

Abstract: An NTC thermistor element is of less than 0402 size. A first internal electrode is connected to a first external electrode. A second internal electrode is separated from the first internal electrode and is connected to a second external electrode. A third internal electrode opposes the first and second internal electrodes and is not connected to the first external electrode and the second external electrode. A shortest distance between the first internal electrode and the third internal electrode and a shortest distance between the second internal electrode and the third internal electrode are smaller than a shortest distance between the first internal electrode and the second internal electrode, a shortest distance between the first external electrode and the third internal electrode, and a shortest distance between the second external electrode and the third internal electrode, and are less than or equal to ¼ the thickness of the thermistor body.

公开(公告)号：US20160379739A1

公开(公告)日：2016-12-29

申请号：US15185892

申请日：2016-06-17

Applicant: TDK CORPORATION

Inventor： Masayuki UCHIDA ,  Takahiro ITAMI ,  Naoyoshi YOSHIDA ,  Takeshi OYANAGI ,  Koki YAMADA ,  Kazuaki KAJIWARA

IPC: H01C7/12 ,  C04B35/453

CPC classification number: H01C7/12 ,  C04B35/453 ,  C04B35/638 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3218 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3241 ,  C04B2235/3275 ,  C04B2235/3286 ,  C04B2235/3294 ,  C04B2235/3298 ,  C04B2235/6025 ,  C04B2235/6567 ,  C04B2235/786 ,  C04B2235/79

Abstract: A voltage nonlinear resistor ceramic comprises: a Zn oxide; a Co oxide; an R (specific rare earth) oxide; a Cr oxide; an M1 (Ca, Sr) oxide; an M2 (Al, Ga, In) oxide; and strontium titanate. When content of the Zn oxide is assumed to be 100 mole portion in terms of Zn, content of the Co oxide is 0.30 to 10 mole portion in terms of Co, content of the R oxide is 0.10 to 10 mole portion in terms of R, content of the Cr oxide is 0.01 to 2 mole portion in terms of Cr, content of the M1 oxide is 0.10 to 5 mole portion in terms of M1, content of the M2 oxide is 0.0005 to 5 mole portion in terms of M2, and content of the strontium titanate is 0.10 to 5 mole portion in terms of SrTiO3.

Abstract translation: 一种电压非线性电阻陶瓷包括：一种氧化锌; 氧化钴; R（特定稀土）氧化物; 氧化铬; M1（Ca，Sr）氧化物; M2（Al，Ga，In）氧化物; 和钛酸锶。 当Zn含量以Zn换算为100摩尔份数时，Co氧化物的含量以Co计为0.30〜10摩尔，R的含量为R为0.10〜10摩尔， Cr氧化物的含量以Cr计为0.01〜2摩尔％，M1氧化物的含量为M1为0.10〜5摩尔，M2氧化物的含量为M2为0.0005〜5摩尔，含量 的钛酸锶以SrTiO 3换算为0.10〜5摩尔份。