3Ω 4A 3D-9 Power NTC Thermistor for USB Adapters -40°C to 170°C Operating Range
Price:
TBA
MOQ:
1000 Pieces
Delivery Time:
7 Days
Brand:
AMPFORT
Product Description
Product Overview
This 3Ω 4A 3D-9 Power NTC Thermistor is specifically designed for USB power delivery adapter applications, providing reliable inrush current suppression and temperature sensing capabilities.
Technical Specifications
| Parameter | Value |
|---|---|
| Rated Zero-Power Resistance | 3 Ω |
| Maximum Steady State Current | 4A |
| Material Constant B25/85 | 2700 K |
| Thermal Dissipation Constant | ≥11 mW/°C |
| Thermal Time Constant | ≤35 sec |
| Operating Temperature Range | -40°C to +170°C |
Physical Dimensions
| Dimension | Value (mm) |
|---|---|
| Diameter (D) | < 11mm |
| Thickness (T) | < 6.0mm |
| Lead Spacing (F) | 7.5±1.0mm |
| Lead Diameter (d) | 0.75±0.06mm |
| Lead Length (L) | ≥25mm |
| Coating Material | PF Resin (Black) |
Key Features
- Effective inrush current limiting for circuit protection
- Reduces probability of tripped circuit breakers and blown fuses
- Protects motors and filaments from damage
- Negative temperature coefficient characteristic
- Tin-plated steel wire leads for reliable connections
Applications
Ideal for controlling inrush current in:
- Switching power supplies
- USB power delivery adapters
- Fluorescent lamps and inverters
- Motor control circuits
Packaging Information
Standard packaging: 1000 pieces per poly bag
Overcurrent Protection
Frequently Asked Questions
Are you a manufacturer?
Yes, we are both manufacturer and distributor of components including Littelfuse products.
Do you accept custom orders?
Yes, we specialize in custom models based on engineering expertise. Please provide drawings or detailed specifications.
What is your lead time?
Standard models: 7 days. Custom models: dependent on specific requirements.
What is your minimum order quantity?
Generally 1000 pieces, with variations for special models.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Ampfort Electronics Co., Ltd.
Location
Floor 5,Changlong Industrial Building,No.6,Jiangnan Road,Jingshan,Chashan Town,Dongguan 523323,China
Contact Person
Annie Fang