WMSIC Electronic Components

Sunlord SDFL1005QR82KTF

ModelSDFL1005QR82KTF
Package0402
BrandSUNLORD
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Sunlord SDFL1005QR82KTF
Type
SUNLORD
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SDFL1005QR82KTF
Electronic Component
1
Package
0402
Electronic Component
SMD Inductor
Electronic Component
±10%
Electronic Component
0.019g
Inductor
820nH
Electronic Component
1
Factor
20@10MHz
Electronic Component
BM0264889128
Current
15mA
Frequency
65MHz
Resistor(DCR)
900mΩ
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SDFL1005QR82KTF 贴片电感产品概述

SDFL1005QR82KTF是顺络电子(Sunlord)推出的一款高频小功率贴片电感,采用0402英制封装(对应公制1005尺寸),专为小型化、低功耗射频及数字电路设计,核心参数覆盖820nH电感值、±10%精度、15mA额定电流等,可满足多数中低频段电子设备的滤波、匹配及储能需求。

一、产品基本属性说明

该电感属于顺络常规贴片电感系列,型号命名规则清晰:

  • 1005:公制封装尺寸(1.0mm×0.5mm),对应英制0402封装;
  • Q:代表高频品质因数优化设计;
  • R82K:电感值820nH(R表示小数点,82为数值,K为精度±10%);
  • TF:温度特性稳定(默认工作温度范围-30℃~+85℃)。

产品采用无铅环保封装,符合RoHS及REACH标准,适配主流SMT生产线,无需额外工艺调整。

二、核心电气参数解析

1. 电感值与精度

电感标称值为820nH(0.82μH),精度±10%,实际值范围738nH~902nH。该值属于中高频段常用电感量,适配射频匹配、滤波及小功率DC-DC电路的储能需求,精度满足一般消费电子、工业控制电路的设计要求(高精度场景需搭配校准或选更高精度型号)。

2. 额定电流与饱和特性

最大连续额定电流15mA,指常温(25℃)下长期稳定工作的最大电流。若电流超15mA,磁芯会逐渐饱和,电感值下降10%以上,同时DCR损耗增加,可能导致电路性能波动或元件过热。

3. 直流电阻(DCR)

DCR为900mΩ(0.9Ω),是线圈直流阻抗,直接影响功耗:15mA电流下损耗仅≈0.02mW,属于低功耗设计,适合电池供电的便携设备。

4. 品质因数(Q值)

Q值20@10MHz,是电感储能与损耗的比值(Q=ωL/R)。10MHz频段高Q值(20)使电感适合射频前端信号匹配、滤波,可减少信号衰减,提升电路信噪比。

5. 自谐振频率(SRF)

自谐振频率65MHz,是电感寄生电容与自身电感的谐振频率。工作频率需控制在SRF的1/3以下(即22MHz以内),避免谐振导致参数剧变。

三、封装与物理特性

采用0402英制贴片封装(尺寸:长1.0mm±0.1mm,宽0.5mm±0.1mm,高0.5mm±0.1mm),体积小巧,适合高密度PCB布局(如智能手机、智能穿戴主板)。无引线设计使寄生电容、电感极小,进一步降低高频损耗。

四、典型应用场景

结合参数特性,该电感主要应用于:

  1. 便携设备射频电路:如蓝牙耳机、智能手环的中低频无线模块(<22MHz)、FM收音机中频滤波;
  2. 小功率DC-DC电源:智能手表纽扣电池供电电路的输出滤波(电流<15mA);
  3. 传感器电路EMI抑制:温湿度、加速度传感器的信号线路滤波,减少电磁干扰;
  4. 工业控制低功耗电路:小型PLC输入输出接口滤波,满足低电流、小体积需求。

五、关键性能优势

  1. 小型化适配:0402封装体积仅≈0.5mm³,节省PCB空间30%以上,适合微型化设备;
  2. 高频低损耗:10MHz下Q值达20,比同封装普通电感高15%,信号衰减小;
  3. 低功耗设计:900mΩ DCR使电流损耗极低,延长电池续航;
  4. 温度稳定性:工作温度-30℃~+85℃,温度系数≤±200ppm/℃,满足户外及工业环境;
  5. 成本平衡:±10%精度兼顾性能与成本,适合量产化应用。

六、选型与使用注意事项

  1. 电流限制:严禁工作电流超15mA,峰值电流超15mA时需选更高额定电流型号;
  2. 频率范围:工作频率需<22MHz,高频场景(如2.4GHz)需换SRF更高型号;
  3. 焊接工艺:回流焊峰值温度≤260℃,避免过热损坏磁芯;
  4. 精度需求:±5%精度场景需换SDFL1005QR82JTF(J为±5%);
  5. 存储条件:存储温度-40℃~+125℃,湿度≤60%,开封后尽快使用,避免受潮。

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