0402系列NTC貼片熱敏電阻介紹:
NTC熱(re)敏電(dian)阻是一種(zhong)由錳、鈷(gu)、鎳為主(zhu)多(duo)種(zhong)金屬氧化(hua)物(wu)為原料燒結而成的(de)陶瓷半導體感熱(re)晶體,對溫度(du)變化(hua)的(de)敏感度(du)極高,其零(ling)功率
電阻值(zhi)隨著(zhu)本體溫(wen)(wen)(wen)(wen)度(du)(du)升高而降(jiang)低,隨著(zhu)溫(wen)(wen)(wen)(wen)度(du)(du)的升高電阻值(zhi)呈指數關系下降(jiang),溫(wen)(wen)(wen)(wen)度(du)(du)系數高達(3~6%/℃),微(wei)小的溫(wen)(wen)(wen)(wen)度(du)(du)變(bian)化會(hui)引起很大
的(de)(de)電(dian)(dian)阻值變化。根據熱敏電(dian)(dian)阻的(de)(de)R-T阻值溫度曲線,可(ke)(ke)以測算出每一個(ge)溫度點精確的(de)(de)電(dian)(dian)阻值,在電(dian)(dian)路中就可(ke)(ke)以通過電(dian)(dian)阻值來(lai)實現溫度的(de)(de)
數(shu)字化(hua)對(dui)應,用來進行溫度的測量和(he)控制。
NTC熱(re)敏(min)電阻因為其對溫度的(de)靈敏(min)度高(gao)、可(ke)靠性(xing)好、互換性(xing)強、廉價、體積小、容易加工(gong)成各種(zhong)所需的(de)形狀和尺寸等優勢廣(guang)泛地應用
在(zai)家電、數碼通訊、汽(qi)車(che)、工(gong)業、醫療(liao)等領域內,其主要功(gong)能是溫(wen)度(du)檢測及控制、溫(wen)度(du)補償(chang)、抑制浪涌(yong)電流、流體(ti)流量測試等作用。
0402系列NTC貼(tie)片(pian)熱敏電阻特點:
1) 體(ti)積小,無(wu)引線,焊(han)接性(xing)能優良,適合高(gao)密度(du)表面貼裝;
2) 瓷體(ti)表面采用(yong)玻(bo)璃包封,耐潮濕性(xing)能好,可靠性(xing)與穩定性(xing)高;
3) 工(gong)作溫度范圍廣(guang):-40℃~+125℃;
4) 高精(jing)度的電阻(zu)值和B值常數;
5) 符合RoHS環保(bao)標準
0402系列NTC貼片熱敏電阻應用范圍:
溫度測(ce)量:電(dian)(dian)子(zi)溫度計、電(dian)(dian)子(zi)萬(wan)年歷(li)、電(dian)(dian)子(zi)鐘溫度顯(xian)示、電(dian)(dian)子(zi)禮(li)品等(deng);
溫度(du)控制:手機(ji)、汽車電話(hua)、筆(bi)記本(ben)電腦、智能(neng)穿戴設備(bei)等設備(bei)充電電池的溫度(du)傳(chuan)感;
溫度補(bu)償(chang):移動通(tong)信設備的晶(jing)體(ti)管、IC和晶(jing)體(ti)振蕩器的溫度補(bu)償(chang)。
0402系列NTC貼片熱敏電阻性能參數:
型號 | 電阻值(25℃) (kΩ) | B常數(25/50℃)(K) | B常(chang)數(25/85℃)(K) | 允許(xu)工作(zuo)電流(25℃)(mA) | 耗散系數 (mW/℃) | 熱(re)時間常數 (s) |
QN0402X102F3450FB | 1.0 | 3450±1% | 3500 | 1.00 | 1.0 | <3 |
QN0402X152F3950FB | 1.5 | 3950±1% | 3987 | 0.81 | ||
QN0402X222F3450FB | 2.2 | 3450±1% | 3500 | 0.67 | ||
QN0402X222F3950FB | 2.2 | 3950±1% | 3987 | 0.67 | ||
QN0402X332F3450FB | 3.3 | 3450±1% | 3500 | 0.55 | ||
QN0402X332F3950FB | 3.3 | 3950±1% | 3987 | 0.55 | ||
QN0402X472F3500FB | 4.7 | 3500±1% | 3545 | 0.46 | ||
QN0402X472F3950FB | 4.7 | 3950±1% | 3987 | 0.46 | ||
QN0402X682F3500FB | 6.8 | 3500±1% | 3545 | 0.38 | ||
QN0402X682F3950FB | 6.8 | 3950±1% | 3987 | 0.38 | ||
QN0402X103F3380FB | 10 | 3380±1% | 3435 | 0.31 | ||
QN0402X103F3900FB | 10 | 3900±1% | 3935 | 0.31 | ||
QN0402X153F3950FB | 15 | 3950±1% | 3987 | 0.25 | ||
QN0402X223F3950FB | 22 | 3950±1% | 3987 | 0.21 | ||
QN0402X333F4050FB | 33 | 4050±1% | 4100 | 0.17 | ||
QN0402X473F4050FB | 47 | 4050±1% | 4100 | 0.14 | ||
QN0402X473F4485FB | 47 | 4485±1% | 4545 | 0.14 | ||
QN0402X493F3937FB | 49.1 | 3937±1% | 3973 | 0.13 | ||
QN0402X503F4100FA | 50 | 4050 | 4100±1% | 0.13 | ||
QN0402X683F4150FB | 68 | 4150±1% | 4210 | 0.12 | ||
QN0402X683F4485FB | 68 | 4485±1% | 4545 | 0.12 | ||
QN0402X104F4250FB | 100 | 4250±1% | 4310 | 0.10 | ||
QN0402X104F4360FB | 100 | 4360±1% | 4403 | 0.10 | ||
QN0402X104F4485FB | 100 | 4485±1% | 4545 | 0.10 | ||
QN0402X154F4500FB | 150 | 4500±1% | 4582 | 0.08 | ||
QN0402X224F3950FB | 220 | 3950±1% | 3987 | 0.06 | ||
QN0402X224F4250FB | 220 | 4250±1% | 4310 | 0.06 | ||
QN0402X224F4500FB | 220 | 4500±1% | 4582 | 0.06 | ||
QN0402X334F3950FB | 330 | 3950±1% | 3987 | 0.05 | ||
QN0402X334F4500FB | 330 | 4500±1% | 4582 | 0.05 | 1.0 | <3 |
QN0402X474F4000FB | 470 | 4000±1% | 4045 | 0.04 | ||
QN0402X474F4500FB | 470 | 4500±1% | 4582 | 0.04 | ||
QN0402X684F4100FB | 680 | 4100±1% | 4135 | 0.03 | ||
QN0402X684F4500FB | 680 | 4500±1% | 4582 | 0.03 |