Datasheet > 电阻器 > 非线性电阻器> 2029L050

2029L050

更新时间： 2024-02-18 12:23:30

品牌	Logo	应用领域
力特 - LITTELFUSE		电阻器非线性电阻器过载保护
页数	文件大小	规格书
2页	151K
描述
SURFACE MOUNT PTC

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技术参数
数据手册

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2029L050 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8533.40.80.70	风险等级：	5.82
安装特点：	SURFACE MOUNT	端子数量：	2
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装形状：	RECTANGULAR PACKAGE	电阻器类型：	PTC THERMISTOR
子类别：	Non-linear Resistors	表面贴装：	YES
热敏电阻器应用：	OVERLOAD PROTECTION	Base Number Matches：	1

2029L050 数据手册

RESETTABLE PTCs

SURFACE MOUNT PTC

TUV

2029L/3425L Series

PRODUCT SERVICE

• The 2029L/3425L Series Resettable devices utilize a

unique polymer-based, Positive Temperature Coefficient

(PTC) material to protect electrical circuits against over-

current conditions.

ENVIRONMENTAL SPECIFICATIONS:

Passive Aging: 85°C, 1000 Hours. ±5% typical resistance

change.

Humidity Aging: 85°C, 85% R.H., 1000 hours. ±5% typi-

• In normal operation, the 2029L/3425L Series PTC has

many conductive paths and a very low resistance. In an

overcurrent condition, the temperature of the polymer

material rises. This dramatically reduces the conductive

paths resulting in an immediate rise in resistance. In this

condition, the device provides circuit protection by signif-

icantly limiting the flow of current. However, once the

cause of the initial overcurrent condition is eliminated,

the 2029L/3425L Series PTC cools down and resets to a

low resistance value permitting the normal current flow

to resume.

cal resistance change.

Thermal Shock: 85°C / –40°C, 20 times. ±10% typical

resistance change.

Vibration: MIL-STD 202, Method 201. No resistance

change.

Mechanical Shock: MIL-STD-202, Method 213 test condi-

tion I (100 g’s, 6 sec.). No resistance change.

Max. Surface Temperature: 125°C

Operating/Storage Temperature: –40°C to 85°C

• The 2029L/3425L Series are surface mountable.

Rerating Curve for 2029L /3425L Series

OBSOLETE

200

AGENCY APPROVALS: Recognized under the

Components Program of Underwriters Laboratory and the

Component Acceptance Program of CSA. TUV approved.

150

AGENCY FILE NUMBERS: UL E183209, CSA LR 108832

100

PHYSICAL SPECIFICATIONS:

Materials: Terminal Material: Tin Plated Brass to

MIL-T-10727B

Lead Solderability: Meets EIA specification RS186-9E

Device Labeling: Device is marked with the letter ‘L’,

amperage rating and date code.

Packaging: Packaged in tape and reel carrier per

EIA 481-2 standard

Standard reel quantities:

PAR50 T

-40 -30 -20 -10

Temperature (°C)

For NEW Designs use 1812L series PTC in place of the 2029L

Series.

Part

Number

Reel

Quantity

Packaging

Suffix

2029L Series

3425L Series

2000

1500

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