V56MLA1206NA

更新时间： 2024-01-16 15:15:55

品牌	Logo	应用领域
力特 - LITTELFUSE		电阻器非线性电阻器
页数	文件大小	规格书
11页	195K
描述
暂无描述

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

V56MLA1206NA 数据手册

Surface Mount Varistors

Multilayer Transient Voltage Surge Suppressors

ML Varistor Series

100

Device Characteristics

At low current levels, the V-I curve of the multilayer transient voltage

suppressor approaches a linear (ohmic) relationship and shows a

temperature dependent effect (Figure 10). At or below the maximum

working voltage, the suppressor is in a high resistance mode (approach-

ing 10⁶Ω at its maximum rated working voltage). Leakage currents at

maximum rated voltage are below 50µA, typically 25µA; for 0402 size

below 10µA, typically 5µA.

V26MLA1206

100%

V5.5MLA1206

-60

-40

-20

TEMPERATURE ( C)

FIGURE 12. CLAMPINGVOLTAGE OVER TEMPERATURE

100 120 140

(V AT 10A)

Energy Absorption/Peak Current Capability

25 50 75

-8 -7

100 125

10%

Energy dissipated within the ML is calculated by multiplying the clamping

voltage, transient current and transient duration. An important advantage

of the multilayer is its interdigitated electrode construction within the mass

of dielectric material. This results in excellent current distribution and the

peak temperature per energy absorbed is very low. The matrix of semicon-

ducting grains combine to absorb and distribute transient energy (heat)

(Figure 11). This dramatically reduces peak temperature; thermal stresses

and enhances device reliability.

-9

-6

-5

-4

-3

-2

SUPPRESSOR CURRENT (A

)

FIGURE 10. TYPICAL TEMPERATURE DEPENDANCE OF THE CHARACTERISTIC

CURVE IN THE LEAKAGE REGION

Speed of Response

The Multilayer Suppressor is a leadless device. Its response time is not

limited by the parasitic lead inductances found in other surface mount

packages. The response time of the Zinc Oxide dielectric material is less

than 1 nanosecond and the ML can clamp very fast dV/dT events such

as ESD. Additionally, in “real world” applications, the associated circuit

wiring is often the greatest factor effecting speed of response. Therefore,

transient suppressor placement within a circuit can be considered

important in certain instances.

As a measure of the device capability in energy and peak current

handling, the V26MLA1206A part was tested with multiple pulses at its

peak current rating (150A, 8/20µs). At the end of the test, 10,000 pulses

later, the device voltage characteristics are still well within specification

(Figure 13).

100

PEAK CURRENT = 150A

8/20µs DURATION, 30s BETWEEN PULSES

FIRED CERAMIC

DIELECTRIC

V26MLA1206

METAL

ELECTRODES

METAL END

2000

4000

6000

8000

10000

12000

TERMINATION

NUMBER OF PULSES

FIGURE 13. REPETITIVE PULSE CAPABILITY

DEPLETION

REGION

DEPLETION

REGION

GRAINS

FIGURE 11. MULTILAYER INTERNAL CONSTRUCTION

146

www. littelfuse. com

1...4 5 678 9 10 11

下载PDF

与V56MLA1206NA相关器件

型号	品牌	描述	获取价格	数据表
V56MLA1206NH	LITTELFUSE	Varistor, 56V, 1J, Surface Mount, CHIP, 1206, ROHS COMPLIANT	获取价格
V56MLA1206NRR	LITTELFUSE	暂无描述	获取价格
V56MLA1206NT	LITTELFUSE	Varistor, 56V, 1J, Surface Mount, CHIP, 1206, ROHS COMPLIANT	获取价格
V56MLA1206T	LITTELFUSE	暂无描述	获取价格
V56MLA1206WA	LITTELFUSE	RESISTOR, VOLTAGE DEPENDENT, 56V, 1J, SURFACE MOUNT, CHIP, 1206, LEAD FREE	获取价格
V56MLA1206WH	LITTELFUSE	暂无描述	获取价格