smd ntc thermistor ste smdntc2522n04003mk0 with space saving design and ul94 v0

Product Specification

Product Overview

The SMD-2522 Series Sealed SMD NTC Thermistors are designed for circuit protection and various electronic applications. They feature advanced encapsulation technology with UL94-V0 rated materials, offering a compact size, small volume, and space-saving design. These thermistors provide excellent high-temperature and high-humidity performance, with strong surge suppression capabilities. They are supplied in SMD tape reels, suitable for lead-free reflow and wave soldering automatic mounting.

Product Attributes

• Brand: Songtian ()
• Product Series: SMD-2522
• Type: NTC Thermistor (Negative Temperature Coefficient)
• Encapsulation Material: Meets UL94-V0
• Packaging: SMD Tape Reel
• Soldering Compatibility: Lead-free Reflow/Wave Soldering
• Origin: Shantou Free Trade Zone Songtian Electronic Technology Co., Ltd.

Technical Specifications

Part Number Coding Principle:

SMD NTC 2522 N [Resistance Value] [Max Steady Current] [Tolerance]

• SMD: Model
• 2522: Size (approx. 6.0*5.5mm)
• N: Lead Shape (Internal Fold)
• Resistance Value @ 25 (Zero Power): e.g., 020 (2.0), 050 (5.0), 201 (200)
• Max Steady Current @ 25: e.g., X5 (0.5A), 01 (1.0A), 04 (4.0A)
• Resistance Tolerance: L (15%), M (20%)

Product Dimensions (for 2522):

Pad Dimensions:

Electrical Characteristics:

Product Marking (Example):

1. Songtian Logo
2. NTC (Negative Temperature Coefficient Thermistor)
3. 2522 (Size: approx. 6.0*5.5mm)
4. 050 (Resistance @ 25: 5.0)
5. M (Tolerance: 20%)

Usage:

• Circuit Protection
• Industrial Equipment
• Communication Equipment
• Consumer Electronics
• Automotive Electronics

Features:

• Advanced encapsulation process, encapsulation material meets UL94-V0.
• Compact structure, small size, space-saving.
• Superior high-temperature and high-humidity performance.
• Strong surge suppression capability.
• SMD tape packaging, suitable for lead-free reflow/wave soldering automatic mounting.

Reliability Test:

Packaging Information:

Tape Packaging Method (Unit: mm):

13-inch Reel Dimensions (Unit: mm):

Carton Packaging:

Lead Shape N: Internal Fold

Curves:

Resistance-Temperature Characteristic Curve

Maximum Current Derating Curve

ITa = [1-(Ta-25)/(Tu-25)]Imax

TU: Upper Limit of Working Temperature ()

TL: Lower Limit of Working Temperature ()

Ta: Ambient Temperature ()

Imax: Maximum Steady Current

Soldering Instructions:

Lead-Free Reflow Soldering Curve

When reflow soldering capacitors, it should be performed under the following conditions:

• Soldering Temperature: 230260
• Soldering Time: 1030s
• Preheating Temperature: 170 max

Wave Soldering Curve

Soldering Iron Rework Conditions:

Storage Environment:

• Store products under the following conditions and use them within 6 months after delivery.
• Temperature: 10~30, Relative Humidity: 60% max.
• Solder NTC within 168 hours after opening the moisture-proof packaging. After opening the moisture-proof packaging, store the NTC in the moisture-proof packaging with desiccant and HIC card, and maintain the above state.
• If the storage period exceeds 6 months, or the indicator color of the attached HIC card changes after the package is opened, baking (60 * 168hr) should be performed before soldering.
• Reference data for baking when product moisture exceeds requirements before reflow soldering, after product exposure time exceeds bare-life or other conditions cause temperature and humidity around the product to exceed requirements (bare-life starts from zero after baking).
• Do not store products in corrosive substances such as sulfur, chlorine gas, or acid, as this will cause pin oxidation and reduce solderability.
• To avoid the influence of moisture, dust, and other substances, products should be stored on shelves.
• Products stored in warehouses should avoid thermal shock, vibration, and direct sunlight.

Usage Precautions:

• The working environment temperature should be within the range specified by the technical conditions.
• Do not install near heat-generating or flammable components; maintain a clearance of more than 3 mm to avoid damaging the components.
• Please wear gloves when touching the pins.
• This specification guarantees the quality of our products as individual units. When our products are installed in your products, please ensure that your products have been effectively evaluated and confirmed according to your company's specifications.
• If your company's trial use of our products exceeds the product functions defined by this test specification, we will not be responsible for any failures caused thereby.
• When an NTC is damaged, the failure may lead to a short circuit. To prevent dangerous situations such as overheating, smoking, or fire during a short circuit, please set up an automatic fail-safe function using components such as fuses in the circuit.