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SF218

SF218

  • 厂商:

    VANLONG

  • 封装:

  • 描述:

    SF218 - 218.50 MHz SAW Filter - Vanlong Technology Co., Ltd.

  • 详情介绍
  • 数据手册
  • 价格&库存
SF218 数据手册
218.50 MHz SAW Filter • • • • • Ideal for Use in 218.50 MHz Low-Loss, Coupled-Resonator Quartz Design Simple External Impedance Matching Rugged, Hermetic, Low Profile TO-39 Package Complies with Directive 2002/95/EC (RoHS Compliant) SF218 Absolute Maximum Rating (Ta=25°C) Parameter CW RF Power Dissipation DC Voltage VDC Between Any Two Pins Operating Temperature Range Storage Temperature Range P VDC Rating +10 ±30 -10 ~ +60 -40 ~ +85 Unit dBm V °C °C TA Tstg Electronic Characteristics Parameter Nominal Frequency (at 25°C) (Center frequency between 3dB point) Insertion Loss 3dB Passband Passband Ripple Ultimate Rejection (fC ± 4.0MHz) Frequency Aging Absolute Value during the First Year Sym fC Minimum NS 2.0 35 1.0 Typical 218.50 3.5 Maximum NS 4.5 3.0 1.5 10 Unit MHz dB MHz dB dB ppm/yr MΩ IL BW3 ∆α αrel |fA| - DC Insulation Resistance Between any Two Pins NS = Not Specified Notes: 1. The frequency fC is defined as the midpoint between the 3dB frequencies. Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture that is connected to a 50Ω test system with VSWR ≤ 1.2:1. The test fixture L and C are adjusted for minimum insertion loss at the filter center frequency, fC. Note that insertion loss, bandwidth, and passband shape are dependent on the impedance matching component values and quality. Unless noted otherwise, specifications apply over the entire specified operating temperature range. 4. The specifications of this device are based on the test circuit shown above and subject to change or obsolescence without notice. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale. Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications, processes and circuits implemented within components or assemblies. For questions on technology, prices and delivery please contact our sales offices or email to sales@vanlong.com. 2. 5. 6. 3. 7. Phone: +86 (10) 5820-3910 © 2007 by Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: sales@vanlong.com Web: http://www.vanlong.com SF218 218.50 MHz SAW Filter Package Dimensions (TO-39) Electrical Connections Terminals 1 2 3 Connection Input/Output Output/Input Case Ground Package Dimensions Dimensions A B C D E F G Nom. (mm) 9.35 3.40 3.00 0.45 5.08 2.54 0.45 Tol. (mm) ±0.10 ±0.10 ±0.20 ±0.10 ±0.10 ±0.20 Marking Test Circuit SF218 218.50 Ink Marking Color: Black or Blue From 50Ω source To 50Ω load Typical Frequency Response Phone: +86 (10) 5820-3910 © 2007 by Vanlong Technology Co., Ltd. Fax: +86 (10) 5820-3915 Email: sales@vanlong.com Web: http://www.vanlong.com SF218
SF218
1. 物料型号: - 型号:SF218

2. 器件简介: - 这是一个218.50 MHz的SAW滤波器,适用于低损耗、耦合谐振器石英设计,具有简单的外部阻抗匹配。它具有坚固、密封、低轮廓的TO-39封装,符合2002/95/EC指令(RoHS合规)。

3. 引脚分配: - 1号引脚:输入/输出 - 2号引脚:输出/输入 - 3号引脚:外壳接地

4. 参数特性: - 最大额定值(Ta=25°C): - 连续RF功率耗散:+10 dBm - 任意两引脚间直流电压:±30V - 工作温度范围:-10 ~ +60°C - 存储温度范围:-40 ~ +85°C - 电气特性: - 标称频率(25°C时):218.50 MHz - 插入损耗:3.5-4.5 dB - 3dB通带:2.0-3.0 MHz - 通带波纹:1.5 dB - 终极抑制(fc±4.0MHz):35 dB - 频率老化(第一年内):10 ppm/年 - 任意两引脚间直流绝缘电阻:1.0 MΩ

5. 功能详解应用信息: - 该滤波器定义的中心频率fC是3dB频率之间的中点。所有测量均在指定的测试夹具中进行,该夹具连接到50Ω测试系统,VSWR ≤ 1.2:1。测试夹具的L和C调整为在滤波器中心频率fC处最小插入损耗。注意,插入损耗、带宽和通带形状取决于阻抗匹配组件的值和质量。除非另有说明,规格适用于整个规定的工作温度范围。该设备的规格基于上述测试电路,并可能在不另行通知的情况下更改或淘汰。所有使用此产品的设备设计必须在制造或销售前获得适当政府机构的批准。我们的责任仅限于表面声波(SAW)组件本身,不包括在组件或组装中实现的应用、流程和电路。

6. 封装信息: - 封装尺寸(TO-39): - A尺寸:9.35 mm(公差±0.10 mm) - B尺寸:3.40 mm(公差±0.10 mm) - C尺寸:3.00 mm(公差±0.20 mm) - D尺寸:0.45 mm(公差±0.10 mm) - E尺寸:5.08 mm(公差±0.10 mm) - F尺寸:2.54 mm(公差±0.20 mm) - G尺寸:0.45 mm
SF218 价格&库存

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