3425L

更新时间： 2024-10-13 22:13:27

品牌	Logo	应用领域
力特 - LITTELFUSE		/
页数	文件大小	规格书
2页	164K
描述
Surface Mount PTC

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3425L 数据手册

Resettable PTCs

Surface Mount PTC

3425L Series

• The 3425L Series Resettable devices utilize a unique polymer-based,

Positive Temperature Coefficient (PTC) material to protect electrical

circuits against overcurrent conditions.

ENVIRONMENTAL SPECIFICATIONS:

Passive Aging: 85°C, 1000 Hours.

Humidity Aging: 85°C, 85% R.H., 100 hours.

• In normal operation, the 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 significantly limiting the flow of

current. However, once the cause of the initial overcurrent condition is

eliminated, the 3425L Series PTC cools down and resets to a low

resistance value permitting the normal current flow to resume.

Thermal Shock: 85°C / –40°C, 20 times.

125°C / –55°C, 10 times.

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

Mechanical Shock: MIL-STD-202, Method 213 test condition I

(100 g’s, 6 sec.).

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

remain in sealed bags prior to use.

• The 3425L Series are surface mountable.

AGENCY APPROVALS: Recognized under the Components Program

of Underwriters Laboratory and the Component Acceptance Program of

CSA. TUV approved.

Rerating Curve for 3425L Series

160

150

140

130

120

110

100

AGENCY FILE NUMBERS: UL E183209, CSA LR 108832

PHYSICAL SPECIFICATIONS:

Materials: Terminal Material: Tin Plated Brass to MIL-T-10727B

Solderability: Meets EIA specification RS186-9E and IPC/EIA

J-STD-002, and IPC/EIA J-STD-001.

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:

Part

Number

Reel

Quantity

Packaging

Suffix

-40

-30 -20 -10

80 85

Temperature (°C)

3425L Series

1500

250

w w w. l i t t e l f u s e . c o m

中文翻译

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与3425L相关器件

型号	品牌	获取价格	描述	数据表
3425L150	LITTELFUSE	获取价格	SURFACE MOUNT PTC
3425L200	LITTELFUSE	获取价格	SURFACE MOUNT PTC
3425L200/60	LITTELFUSE	获取价格	Littelfuse 3425L系列PPTC可为需要自恢复保护的高压应用提供表面安装式过流
3425L200DR	LITTELFUSE	获取价格	暂无描述
3425L200PR	LITTELFUSE	获取价格	RESISTOR, TEMPERATURE DEPENDENT, PTC, SURFACE MOUNT
3425L250	LITTELFUSE	获取价格	SURFACE MOUNT PTC
3425L250DR	LITTELFUSE	获取价格	RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, 0.035ohm, SURFACE MOUNT, CHIP
3425L250PR	LITTELFUSE	获取价格	RESISTOR, TEMPERATURE DEPENDENT, PTC, SURFACE MOUNT
3425L260/60	LITTELFUSE	获取价格	Littelfuse 3425L系列PPTC可为需要自恢复保护的高压应用提供表面安装式过流
3425L300	LITTELFUSE	获取价格	Surface Mount PTC