高性价比的石英晶体谐振器超级适合用于儿童手表ABM10-20.000MHZ-E20-T

高性价比的石英晶体谐振器超级适合用于儿童手表ABM10-20.000MHZ-E20-T，电感器的直流电阻受环境温度和电感体固有自热的影响。图2为AMXLA-Q1040系列的DCR随环境温度升高而升高的变化情况。从图中可以看出，石英晶振和大电感值的DCR比小电感值受温度的影响更大。然而，作为DCR的百分比变化，从25°C到最大180°C的温度变化将导致DCR约60%的线性增加，而不管电感值如何。

高性价比的石英晶体谐振器超级适合用于儿童手表ABM10-20.000MHZ-E20-T，例如，68uH电感在25°C时的DCR≈210mΩ。增加60%的直流电阻，在180°C下计算大约为336mΩ。作为比较，47uH电感在25°C时的DCR≈145mΩ，而在高温时的DCR≈232mΩ。

DCR的增加通过增加直流损耗对电感的性能产生负面影响。随着额外的损耗，产生更多的自热，这是在扩展温度应用中降额电感的主要原因。因而贴片晶振也为广泛应用程序带来极大的便利。

Manufacturer Part Number 原厂编码	Manufacturer厂家	Series型号	Type 系列	Frequency频率	Package / Case包装/封装
ABM3C-24.576MHZ-D4Y-T	Abracon晶振	ABM3C	MHz Crystal	24.576MHz	4-SMD, No Lead
ABM3C-14.31818MHZ-D4Y-T	Abracon晶振	ABM3C	MHz Crystal	14.31818MHz	4-SMD, No Lead
ABS06L-32.768KHZ-T	Abracon晶振	ABS06L	kHz Crystal (Tuning Fork)	32.768kHz	2-SMD, No Lead
ABMM-11.0592MHZ-B2-T	Abracon晶振	ABMM	MHz Crystal	11.0592MHz	4-SMD, No Lead
ABM8G-14.31818MHZ-B4Y-T	Abracon晶振	ABM8G	MHz Crystal	14.31818MHz	4-SMD, No Lead
ABM8G-13.000MHZ-B4Y-T	Abracon晶振	ABM8G	MHz Crystal	13MHz	4-SMD, No Lead
ABM8G-30.000MHZ-B4Y-T	Abracon晶振	ABM8G	MHz Crystal	30MHz	4-SMD, No Lead
ABM8G-33.000MHZ-B4Y-T	Abracon晶振	ABM8G	MHz Crystal	33MHz	4-SMD, No Lead
ABM8G-20.000MHZ-B4Y-T	Abracon晶振	ABM8G	MHz Crystal	20MHz	4-SMD, No Lead
ABS07-LR-32.768KHZ-6-T	Abracon晶振	ABS07-LR	kHz Crystal (Tuning Fork)	32.768kHz	2-SMD, No Lead
ABM10-27.000MHZ-E20-T	Abracon晶振	ABM10	MHz Crystal	27MHz	4-SMD, No Lead
ABM10-20.000MHZ-E20-T	Abracon晶振	ABM10	3225贴片晶振	20MHz	4-SMD, No Lead
ABLS-LR-4.9152MHZ-T	Abracon晶振	ABLS-LR	MHz Crystal	4.9152MHz	HC49/US
ABM10-25.000MHZ-E20-T	Abracon晶振	ABM10	MHz Crystal	25MHz	4-SMD, No Lead

The inductor’s DC resistance is affected by the ambient temperature and inherent self-heating of the inductor body. Fig.2 below illustrates the change in DCR of the AMXLA-Q1040 series as body/case temperature increases as ambient temperature increases. The graph shows that the DCR of larger inductance values are influenced more by temperature than smaller inductance values. However, as a percentage change in DCR, the temperature change from 25°C to the maximum 180°C will cause approximately a 60% linear increase in DCR regardless of the inductance value.

For example, the 68uH inductor has a DCR ≈ 210m? at 25°C. Adding 60% more DC resistance calculates to approximately 336m? at 180°C. For comparison, the 47uH inductor has a DCR ≈ 145m? at 25°C and a high temp DCR ≈ 232m?.
The increase in DCR negatively affects the inductor’s performance by increasing DC loss. With the additional loss, more self-heating is generated and is the primary reason for derating inductors in extended temperature applications.