JK250-1200U 250V 1.2A Self-Resetting Fuse PPTC Thermistor With UL Certificate

Polymer PTC Resettable Fuse JK250 Series

Features:

• Radial leadedDevices
• Cured,flame retardant epoxy polymer insulating material meetsUL94V-0
• Bulk packaging,or tape and reel available on mostmodels
• Agency recognition:UL,CSA,TUV
• Rohs compliant andlead-free

Product Dimensions

Unit :mm

JK250 Series

Note: ① Dimensions A, B, C is the maximum size, D values are typical tolerance of ± 0.75mm.

Thermal Derating Chart-IH(A)

Electrical Characteristic

I_H=Hold current:maximum current at which the device will not trip at 25℃ still air.

I_T=Trip current:minimum current at which the device will nalways at 25℃ still air.

V_max=Maximum voltage device can withstand without damage at rated current.

I_max=Maximum fault current device can withstand tithout damage at rated voltage.

T_trip=Maximum time to trip(s) at assigned current.

P_d=Typical power dissipation:typical amount of power dissipated by the decice when in state air environment.

R_min=Minimum device resistance at 25℃ prior to tripping.

R_max=Maximum device resistance at 25℃ prior to tripping.

Environmental Specifications

Solder reflow conditions

Wave Soldering:

Soldering Temperature:260℃~270℃ Soldering Time:≤3sec.

Soldering Position: Resettable fuse wire and the bottom ≥ 6mm.

Manual soldering:

Soldering Temperature:250℃~280℃ Soldering Time: ≤3sec.

Soldering Position: Resettable fuse wire and the bottom ≥ 6mm.

Packaging and Storage
Packaging

JK250～020U～JK250-180U 1000Pcs/Bag

JK250-200U～JK250-600U 500Pcs/Bag

JK250-800U～JK250-2000U 200Pcs/Bag

Storage

The maximum ambient temperature shall not exceed 40℃.Storage temperatures higher than 40℃ could result in the deformation of packaging materials.The maximum relative humidity recommended for storage is 70%.High humidity with high temperature can accelerate the oxidation the oxidation of the solder plating on the termination and reduce the solderability of the components.sealed plastic bags with desiccant shall be used to teduce the oxidation of the termination and shall only be opened prior to use.the products shall not be stored in areas where harmful gases containing sulfu of chlorine are present.
Warning:

Please read this specification before use the product.

Using of this product must be sure to follow the requirement of this specification,operation beyond the specified maximum ratings or improper use may result in damage and possible electrical arcing and flame.

PPTC resettable fuses are intended for occasional over current protection. Application for repeated over current condition or prolonged trip are not anticipated.

Please avoid contact of PPTC resettable fuses with chemical solvent. Prolonged contact will damage the device performance. You are requested not to use our product deviating from the agreed specifications.

Dongguan Linkun Electronic Technology Co., Ltd. Dongguan Linkun Electronic Technology Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing and sales, committed to becoming a high-quality supplier of circuit protection components. Since its establishment, the company has continuously introduced advanced automation equipment and imported technology, and has developed rapidly in the fields of varistors and thermistors. The company has a professional technical team and skilled technicians, and cooperates with three domestic universities to jointly develop new products to meet the different needs and circuit protection solutions of global customers. In addition, our products have passed safety certifications in many countries. From circuit design to product testing and finished products leaving the factory, we will provide you with one-stop service in the field of circuit protection. After years of intensive cultivation at Linkun Electronics, we have maintained good relationships with our peers and become distributors of many well-known electronic component brands to meet the different needs of customers. The main products include: thermistors, varistors, temperature sensors, fuses and their corresponding hardware and plastic accessories, sensors, thermal protectors, overload/composite protectors, discharge tubes, photoresistors, etc. Through the combination of various process equipment, our product supply is faster. Our products are widely used in: power adapters, switching power supplies, chargers, transformers, computers, phones, household appliances, communication products, lighting products, toy products, various instruments and various cables, electrical products, IT, consumer electronics products , automobiles, batteries and other fields. Quality policy: first-class quality, scientific management, continuous innovation, customer satisfaction! Linkun Electronics provides you with high quality, competitive prices and the best services, and becomes your loyal and reliable protection circuit component partner!

Business philosophy:

rational use of resources, customer satisfaction, high-quality products, continuous improvement.