1R8M, Characteristics | TDK VLM Series VLM10555-2 instruction

SMD Inductors(Coils)

For Power Line(Wound, Magnetic Shielded)

(1/1)

Conformity to RoHS Directive

VLM Series VLM10555-2

FEATURES

SHAPES AND DIMENSIONS

•Low loss and large current capability design.

•High magnetic shield construction should actualize high resolu- tion for EMC protection.

•Available for automatic mounting in tape and real package.

APPLICATIONS

Note book type and mobile computers, amusement equipment, DVD players, VRMs, plasma displays, etc.

1R8M

10.6±0.2

10.5max.

5.4±0.2

Dimensions in mm

RECOMMENDED PC BOARD PATTERN

8.7

3.7

1.8

2.73.9

11.5

Dimensions in mm

ELECTRICAL CHARACTERISTICS

		Inductance			DC resistance			Rated current(A)∗
	Inductance		Test frequency					Based on inductance change		Based on
Part No.		tolerance			(mΩ)
	(µH)		(kHz)					max.(typ.)		temperature rise
		(%)
				[±15%]		typ.		[at 25°C]	[at 100°C]	typ.

VLM10555T-1R8M8R8-2	1.8	±20	100	5.6		5.6	18(20)		14(16)	8.8
VLM10555T-2R5M8R0-2	2.5	±20	100	6.7		6.7	15(17)		12(14)	8
VLM10555T-3R3M7R2-2	3.3	±20	100	8.3		8.3	12(14)		10(12)	7.2
VLM10555T-4R3M7R2-2	4.3	±20	100	8.3		8.3	9(11)		7(9)	7.2

∗Rated current: Value obtained when current flows and the temperature has risen to 40°C or when DC current flows and the nominal value of inductance has fallen by 30%, whichever is smaller.

TYPICAL ELECTRICAL CHARACTERISTICS

INDUCTANCE CHANGE vs. DC SUPERPOSITION

TEMPERATURE RISE CHARACTERISTICS

CHARACTERISTICS
	4.5
	4.0
	3.5
)	3.0
H	3.0
(∝
Inductance	2.5
	2.0
	1.5
	1.0
	0.5
	0.0	5	10	15	20	25
	0	5	10	15	20	25
			DC current (A)

Self-temperature rise(˚C)

1.8∝H

2.5∝H

3.3∝H/4.3∝H

2	4	6	8	10	12
		DC current (A)

		1.8∝H[at 25˚C]	1.8∝H[at 100˚C]
		1.8∝H[at 25˚C]	1.8∝H[at 100˚C]
		2.5∝H[at 25˚C]	2.5∝H[at 100˚C]
		2.5∝H[at 25˚C]	2.5∝H[at 100˚C]
		3.3∝H[at 25˚C]	3.3∝H[at 100˚C]
		3.3∝H[at 25˚C]	3.3∝H[at 100˚C]
		4.3∝H[at 25˚C]	4.3∝H[at 100˚C]
		4.3∝H[at 25˚C]	4.3∝H[at 100˚C]

•Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.

•All specifications are subject to change without notice.

001-03 / 20080822 / e531_vlm10555_2

VLM Series VLM10555-2 specifications

The TDK VLM Series VLM10555-2 is a notable addition to the lineup of high-performance inductors designed for a variety of applications in the electronic components market. With a compact design and versatile specifications, it caters specifically to environments requiring reliable power management and noise suppression.

One of the primary features of the VLM10555-2 is its compact size, which enables easy integration into tight spaces without compromising performance. The dimensions of 10 mm x 10 mm x 5.5 mm make it suitable for applications in mobile devices, automotive electronics, and industrial control systems. This miniature design is paired with a low profile, contributing to design flexibility in modern electronic circuitry.

The VLM10555-2 is constructed using advanced ferrite materials that significantly enhance its energy efficiency. This design choice minimizes core losses, making it an ideal solution for applications that require prolonged operation without excessive heat generation. The inductor provides high levels of inductance, reaching values of 5.6 µH, and can handle a current rating of up to 12 A, accommodating a wide range of load conditions.

Additionally, the VLM Series incorporates robust shielding technology to reduce electromagnetic interference (EMI). This characteristic is particularly beneficial in sensitive applications where signal integrity is paramount. The inductor’s design minimizes coupling between windings and the surrounding environment, ensuring stable performance without degradation from external noise sources.

Thermal characteristics are another essential aspect of the VLM10555-2. The component is designed to withstand operating temperatures ranging from -40°C to +125°C, making it highly reliable even in extreme conditions. This wide temperature range allows for usage in diverse environments, from automotive applications exposed to fluctuating temperatures to consumer electronics that may encounter varying conditions during operation.

The VLM10555-2 also features a low DCR (DC Resistance), which helps improve overall efficiency by reducing power losses in the circuit. As electronic designs increasingly prioritize energy conservation and thermal management, the VLM Series stands out as a candidate for minimizing power waste and enhancing device longevity.

In conclusion, the TDK VLM Series VLM10555-2 is a versatile, efficient, and compact inductor suited for a broad spectrum of electronic applications. Its advanced features, including high inductance, low profile design, EMI shielding, and robust thermal performance, make it a compelling choice for engineers seeking dependable inductive solutions in modern circuit designs.

TDK VLM Series VLM10555-2 specifications 1R8M, Characteristics

Models: VLM Series VLM10555-2