PDF《XR73B、XR73H、XR73Z》

1 为表面贴装状态下的额定值. The ratings will be for the surface mounted condition.

2 XR73H1H(1Ω≤R≤9.1Ω、1MΩ≤R≤10MΩ)的公称阻值为E-24. The nominal resistance value for XR73H1H (1Ω≤R≤9.1Ω, 1MΩ≤R≤10MΩ) is E24. Oct.

2015 矩形片式电阻器 Flat Chip Resistors 本样本手册中记载的产品规格如有变更,恕不一一奉告.订购以及使用之前,请仔细确认规格表的内容. 用于车载设备、医疗设备、航空设备以及其它涉及人身安全、或可能引起重大损失的设备上时,请务必事先与我公司联系.这些产品在这类用途中出现故障或失灵可能导致人身事故或严重损坏. Speci?cations given herein may be changed at any time without prior notice. Please con?rm technical speci?cations before you order and/or use. Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment. Malfunction or failure of the products in such applications may cause loss of human life or serious damage. www.koaglobal.com 性能 Performance 负荷减轻特性曲线 Derating Curve 在环境温度70℃以上使用时,应按照上图负荷减轻特性曲线,减小额定功率. For resistors operated at an ambient temperature of 70℃ or above, a power rating shall be derated in accordance with the above derating curve.

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155 ?????? Ambient temperature??? Percent rated power ???????????? 1E 1H 试验项目 Test Items XR73H, XR73B XR73Z 试验方法 Test Methods 标准值 Performance Requirements ΔR±(%+0.05Ω) 标准值 Performance Requirements 保证值 Limit 代表值 Typical 保证值 Limit 代表值 Typical 电阻值 Resistance 在规定的允许偏差内 Within specified tolerance - 50mΩ以下 50mΩMax. after the test 15mΩ以下 15mΩMax. after the test 25℃ 电阻温度系数 T.C.R. 在规定值以内 Within specified T.C.R. - - - +25℃/-55℃ and +25℃/+125℃ 过载(短时间) Overload(Short time)

2 0.5 50mΩ以下 50mΩMax. after the test R≤20mΩ:1E R≤40mΩ:1H 额定电压(DC)*2.5倍施加5秒钟 Rated voltage(DC)*2.5 for 5s 温度突变 Rapid change of temperature

1 0.5 100mΩ以下 100mΩMax. after the test R≤20mΩ:1E R≤40mΩ:1H -55℃(30min.)/+125℃(30min.)100 cycles 耐湿负荷 Moisture resistance

3 1.5 100mΩ以下 100mΩMax. after the test R≤20mΩ:1E R≤40mΩ:1H 40℃±2℃、90%~95%RH、1000h 1.5小时ON、0.5小时OFF的周期 1.5h ON/0.5h OFF cycle 在70℃时的耐久性 Endurance at 70℃

3 1 100mΩ以下 100mΩMax. after the test R≤20mΩ:1E R≤40mΩ:1H 70℃±2℃、1000h 1.5小时ON、0.5小时OFF的周期 1.5h ON/0.5h OFF cycle 高温放置 High temperature exposure

1 0.5 100mΩ以下 100mΩMax. after the test R≤20mΩ:1E R≤40mΩ:1H +155℃、1000h:1E +125℃、1000h:1H 使用注意事项 Precautions for Use z 本产品在设计时以基板内置用、通过Cu电镀连接为前提.有关连接,请事先评估后再使用. z 与通用品相比,由于是薄片型,因此请以正确的贴装条件(喷嘴形状、压入量、贴装速度等)使用. z 散热状态根据基板的材质和接线图案等而发生变化,因此请根据内置状态进行评估后使用. z This product is on the assumption that it is connected by embedding the product into the board and then Cu plating. Please evaluate the connection before use. z This product is a very thin chip compared to the general flat chip resistors so, please adjust the mounting conditions appropriately (Nozzle figure, push in amount, mounting speed etc…). z The heat dissipation condition differs depending on the material of the board and wiring pattern so please evaluate under the embedded condition before use. 为表面贴装状态下的性能. The performance will be for the surface mounted condition. XR73Z 使用温度范围 Operating Temperature Range : -55℃~+125℃(1H)、-55℃~+155℃(1E) 为表面贴装状态下的额定值. The ratings will be for the surface mounted condition. 型号Type 电阻值 Resistance 额定电流 Current Rating 额定环境温度 Rated Ambient Temp. 最高过载电流 Max. Overload Current 二次加工和包装数/卷Taping & Q'ty /Reel (pcs) TWL TWA 1H 50mΩ以下 50mΩ max. 0.5A 70℃ 1A 20,000 40,000 1E 1A 2A 20,000 - Oct. 2015