晶體單元是利用晶體的壓電效應(yīng)的無(wú)源元件。通過(guò)施加電壓，在晶體中發(fā)生轉(zhuǎn)變，并且它以振動(dòng)的自然共振頻率振蕩高穩(wěn)定性的頻率。許多需要高穩(wěn)定性的汽車(chē)領(lǐng)域都采用了由優(yōu)質(zhì)人造石英晶體制成的NDK器件。

日本進(jìn)口NDK晶振NX3215SE，編碼為NX3215SE-32.768K-STD-MUA-19用于移動(dòng)通信和辦公自動(dòng)化，小體積尺寸3.2x1.5mm兩腳貼片晶振，32.768K晶振，無(wú)源晶振，石英晶體諧振器，具有低ESR（等效系列電阻）的石英晶振，適用于需要低ESR的微控制器(ESR: Max，40kΩ)音叉晶體單元，卓越的電氣特性，適用于移動(dòng)通信、OA（辦公自動(dòng)化）的最佳電氣特性和AV（視聽(tīng)）應(yīng)用，表面安裝音叉晶體單元（可用于回流焊），回流溫度輪廓（可用于無(wú)鉛焊接）。

NDK貼片晶振	廠家	型號(hào)	系列	頻率
NX3225GA-26.000M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	26MHz
NX3225GA-26MHZ-TI	NDK Crystal	NX3225GA	MHz Crystal	26MHz
NX3225GA-16.000M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	16MHz
NX3225GA-27.000M-STD-CRG-1	NDK Crystal	NX3225GA	MHz Crystal	27MHz
NX3215SA-32.768K-STD-MUA-8	NDK Crystal	NX3215SA	kHz Crystal (Tuning Fork)	32.768kHz
NX3215SA-32.768K-STD-MUA-9	NDK Crystal	NX3215SA	kHz Crystal (Tuning Fork)	32.768kHz
NX3215SA-32.768K-STD-MUA-14	NDK Crystal	NX3215SA	kHz Crystal (Tuning Fork)	32.768kHz
NX3215SA-32.768K-STD-MUS-2	NDK Crystal	NX3215SA	kHz Crystal (Tuning Fork)	32.768kHz
NX3225GA-20.000M-STD-CRG-1	NDK Crystal	NX3225GA	MHz Crystal	20MHz
NX3225GA-24.576M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	24.576MHz
NX3225GA-26.000M-STD-CRG-1	NDK Crystal	NX3225GA	MHz Crystal	26MHz
NX3225GA-32M-EXS00A-CG02611	NDK Crystal	NX3225GA	MHz Crystal	32MHz
NX3225GA-20.000M-STD-CRG-2	進(jìn)口晶振	NX3225GA	MHz Crystal	20MHz
NX3225GA-27M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	27MHz
NX3225GA-20MHZ-STD-CRA-1	NDK Crystal	NX3225GA	MHz Crystal	20MHz
NX3225GA-19.2M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	19.2MHz
NX3225GA-12MHZ- STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	12MHz
NX3225GA-12.000M-STD-CRA-1	NDK Crystal	NX3225GA	MHz Crystal	12MHz
NX3225GA-12.288M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	12.288MHz
NX3225GA-13.56M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	13.56MHz
NX3225GA-25.000M-STD-CRG-1	NDK Crystal	NX3225GA	MHz Crystal	25MHz
NX3225GA-25.000M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	25MHz
NX3225GA-16.000M-STD-CRG-1	NDK Crystal	NX3225GA	MHz Crystal	16MHz
NX3225GA-12MHZ- STD-CRG-1	NDK Crystal	NX3225GA	MHz Crystal	12MHz
NX3225GA-30.000M-STD-CRG-1	NDK Crystal	NX3225GA	MHz Crystal	30MHz
NX3225GA-30.000M-STD-CRG-2	NDK Crystal	NX3225GA	MHz Crystal	30MHz
NX3215SE-32.768K-STD-MUA-19	NDK Crystal	NX3215SE	kHz Crystal (Tuning Fork)	32.768k晶振
NX3215SE-32.768K-STD-MUA-17	NDK Crystal	NX3215SE	kHz Crystal (Tuning Fork)	32.768kHz
NX3215SE-32.768K-STD-MUA-18	NDK Crystal	NX3215SE	kHz Crystal (Tuning Fork)	32.768kHz

NX3215SE-32.768K-STD-MUA-19用于移動(dòng)通信和辦公自動(dòng)化，32.768K系列產(chǎn)品本身具有體積小,厚度薄,重量輕等特點(diǎn),此音叉型石英晶體諧振器,晶振產(chǎn)品本身具備優(yōu)良的耐熱性,耐環(huán)境特性,在辦公自動(dòng)化,家電領(lǐng)域,移動(dòng)通信領(lǐng)域可發(fā)揮優(yōu)良的電氣特性,符合無(wú)鉛標(biāo)準(zhǔn),滿(mǎn)足無(wú)鉛焊接的回流溫度曲線要求,金屬外殼的石英晶振使得產(chǎn)品在封裝時(shí)能發(fā)揮比陶瓷晶振外殼更好的耐沖擊性能.