

Radial Leaded Ultra Big Power NTC Thermistor MF73 For Switching Power Supply I Description Of The Ultra Big Power NTC Thermistor MF73 High-Power NTC Thermistors are used to reduce the inrush current that occurs when an electrical device is switched on. High inrush current is the result of the maximum instantaneous input current drawn by an electrical device during the initial power up. As technology continues to advance, most systems today run efficiently and maintain a low impedance which in turn contributes to high inrush current. Additionally, devices that produce alternating current such as electric motors or transformers can draw several times their steady state current at switch on. Although this additional draw of inrush often lasts less than ½ of a normal 60 hertz cycle, that is enough time to cause possible damage to the equipment. II Application Of The Ultra Big Power NTC Thermistor MF73 * All kinds of power supply,UPS power supply,Switching power supply * EV charger,charging pile * Motor driver,superpower server motor driver,logic controller * High power plasma electric welder,cutting machine,super power lightning lamp * Nuclear managetic resonance equipment,super power audio power amplifier,high circle transformer * The solar panel arrays with high capacity power inverter * The industrial robot drived by high voltage power supply, intelligent electric cabinet with low voltage. IV Specification Of The Ultra Big Power NTC Thermistor MF73 Body diameter 40mm P/N R25±20%() Thermal sensitive index B±10%(K) Max steady state current Imax(A) Approx R of Max current Rmax() Max power dissipation Pmax(W) Thermal time constant (mW/C) Thermal time constant (s) Max impulse capacitance (uF)240VAC MF73-0.2/50 0.2 2600 50 0.007 25 â?¥55 â?¤350 8000 MF73-0.5/40 0.5 2600 40 0.008 6800 MF73-3/28 3 2800 28 0.02 6800 MF73-5/25 5 3000 25 0.028 4700 MF73-8/20 8 3200 20 0.034 3300 MF73-10/19 10 3200 19 0.038 3300 Body diameter 45mm P/N R25±20%() Thermal sensitive index B±10%(K) Max steady state current Imax(A) Approx R of Max current Rmax() Max power dissipation Pmax(W) Thermal time constant (mW/C) Thermal time constant (s) Max impulse capacitance (uF)240VAC MF73-0.2/65 0.2 2600 65 0.006 30 70 480 11500 MF73-0.5/50 0.5 2600 50 0.007 8000 MF73-2/40 2 2600 40 0.012 8000 MF73-5/30 5 3000 30 0.025 6800 MF73-10/24 10 3200 24 0.032 4700 Body diameter 50mm P/N R25±20%) Thermal sensitive index B±10%(K) Max steady state current Imax(A) Approx R of Max current Rmax Max power dissipation Pmax(W) Thermal time constant (mW/C) Thermal time constant (s) Max impulse capacitance (uF)240VAC MF73-0.2/80 0.2 2600 80 0.004 36 90 650 15000 MF73-0.5/60 0.5 2600 60 0.006 11500 MF73-1/56 1 2600 56 0.008 11500 MF73-3/40 3 2800 40 0.015 11500 MF73-5/35 5 3000 35 0.022 8000 MF73-6.8/32 6.8 3000 32 0.025 8000 MF73-10/27 10 3200 27 0.03 6800
| HS Code | 8533.40 |
| Brand | EximNext |
| Material | Semiconductor Metal Oxide (Manganese-Nickel-Cobalt Oxide Compound) |
| Product Series | MF73 Ultra Big Power NTC Thermistor |
| Type/Configuration | Radial Leaded, Disc Type |
| Power Rating | 1W - 3W (Ultra Big Power Class) |
| Resistance Value | 2 Ohm - 16 Ohm @ 25°C (varies by model) |
| Diameter | 13mm - 20mm (model dependent) |
| Lead Spacing | Standard 7.5mm or 10mm pitch |
| Operating Temperature | -40°C to +170°C |
| Application | Inrush Current Limiting for SMPS, Rectifiers, and Power Electronics |
| Packaging | Bulk in Boxes / Tape & Reel / Ammo Pack |
| Origin | China (Major Manufacturing Region) |
The MF73 series ultra big power NTC thermistor is designed for inrush current suppression in switching power supplies and industrial electronic equipment. Radial leaded construction ensures easy PCB mounting, with typical power ratings up to 3W and resistance values from 2 ohms to 16 ohms at 25 degrees C. These components are essential for protecting rectifier diodes and electrolytic capacitors during startup, making them critical procurement items for power supply manufacturers and EMS providers globally.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Big Power Power NTC Thermistor MF73 is available for wholesale import from Dongguan Ampfort Electronics Co., Ltd., a verified Supplier based in China. The current FOB price is 5. Minimum order quantity starts at 1 Bags. HS Code: 8533.40 — used for customs classification and import duty calculation. Key product specifications include 8533.40, EximNext, Semiconductor Metal Oxide (Manganese-Nickel-Cobalt Oxide Compound).
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When sourcing Big Power Power Ntc Thermistor Mf73 for your business, securing the right balance of quality and cost is essential. Dongguan Ampfort Electronics Co., Ltd., a verified supplier based in China, offers this product with key specifications including MF73 Ultra Big Power NTC Thermistor, Radial Leaded, Disc Type, and 1W - 3W (Ultra Big Power Class). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $5/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 8533.40, making it a staple in the Electric Components sector with strong demand from importing countries worldwide.
Importing Big Power Power Ntc Therm requires careful attention to shipping logistics, customs compliance, and secure payment terms. Dongguan Ampfort Electronics Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8533.40 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Big Power Power Ntc Therm has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Electric Components category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Importing Big Power Power Ntc Therm requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 8533.40 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Big Power Power Ntc Thermistor Mf73 from Dongguan Ampfort Electronics Co., Ltd. is $5/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Dongguan Ampfort Electronics Co., Ltd. through EximNext.
The supplier, Dongguan Ampfort Electronics Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Big Power Power Ntc Therm. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Big Power Power Ntc Thermistor Mf73 is classified under HS Code 8533.40. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Big Power Power Ntc Therm from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Dongguan Ampfort Electronics Co., Ltd.. Ensure you have the necessary import licenses for Electric Components products in your destination country.
Yes, Dongguan Ampfort Electronics Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
The key specifications for Big Power Power Ntc Thermistor Mf73 supplied by Dongguan Ampfort Electronics Co., Ltd. include MF73 Ultra Big Power NTC Thermistor, Radial Leaded, Disc Type, and 1W - 3W (Ultra Big Power Class). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Dongguan Ampfort Electronics Co., Ltd. offers Big Power Power Ntc Therm with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Big Power Power Ntc Therm is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Dongguan Ampfort Electronics Co., Ltd. through our platform.
Dongguan Ampfort Electronics Co., Ltd. maintains international quality certifications. These ensure that the Big Power Power Ntc Therm meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Dongguan Ampfort Electronics Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Dongguan Ampfort Electronics Co., Ltd..
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