2012mm,XTL741-U11-402,32.768KHz,XTL74,Siward谐振器，台湾Siward晶振，希华晶振，型号：XTL74，编码为：XTL741-U11-402，负载电容：7pF，精度：±20ppm，频率为：32.768K晶振，工作温度范围：-40℃至+85℃，小体积晶振尺寸：2.0x1.2x0.6mm封装，两脚贴片晶振，石英晶振，SMD晶振，手表晶体，无源晶振，2012晶振，石英晶体谐振器。具有超小型，轻薄型，高性能，高品质，耐热及耐环境特点。被广泛应用于：通信晶振，无线应用晶振，蓝牙模块晶振、无线局△域网，钟表电子晶振，电脑主板晶振，数字显示⊙晶振，游戏机设备，电话＠机等应用。
2012mm,XTL741-U11-402,32.768KHz,XTL74,Siward谐振器,参数表
| Model | XTL74 | |||||||
| Nominal frequency range | 32.768kHz | |||||||
| Storage temperature range | -55 ~ +125℃ | |||||||
| Operating temperature range | -40 ~ +85℃ | |||||||
| Frequency tolerance (at +25℃) | ±20×10-6 | |||||||
| Load capacitance | 6pF, 7pF, 9pF, 12.5pF | |||||||
| Equivalent series resistance | 80 kΩMax. | |||||||
| Shunt capacitance | 1.2 pF Typ. | |||||||
| Motional capacitance | 6.0 fF Typ. | |||||||
| Turnover Temperature | +25℃±5℃ | |||||||
| Parabolic Coecient | -0.04 ppm /℃2Max. | |||||||
| Level of drive | 0.1μW (0.5μW Max.) | |||||||
| Aging | ±3ppm / Year | |||||||
2012mm,XTL741-U11-402,32.768KHz,XTL74,Siward谐振器,尺寸图
| 编码 | 时计产品晶振 | 描述 | 系列 | 频率 |
| XTL721-Q23-048 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL72 | 32.768kHz |
| XTL721-S349-005 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL72 | 32.768kHz |
| XTL721-S999-301 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL72 | 32.768kHz |
| XTL721-S999-429 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL72 | 32.768kHz |
| XTL741-S999-319 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL74 | 32.768kHz |
| XTL741-U11-402 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL74 | 32.768kHz |
| XTL741-S999-298 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL74 | 32.768kHz |
| XTL741-S999-379 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL74 | 32.768kHz |
| XTL741-S999-327 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL74 | 32.768kHz |
| XTL721-S999-286 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL72 | 32.768kHz |
| XTL751-S999-544 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL75 | 32.768kHz |
| XTL751-S999-548 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL75 | 32.768kHz |
| XTL751-S999-420 | Siward希华 | CRYSTAL 32.768KHz 20PPM CRYSTAL | XTL75 | 32.768kHz |
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