You are here: Home » Products » Transformers » AC Transformer » RM Series Transformer » RM14 PFC Chokes Inductor for Power Factor Correction Power Supplies

RM14 PFC Chokes Inductor for Power Factor Correction Power Supplies

Characteristics:

· High efficiency
· Superior EMC characteristics
· Low height: min. 13.1 mm
· Small form factor
· Suitable for line mains voltage
· AC isolation voltage: 1.5 kV
·Operating temp: -40 °C to 125 °

Options:

·High efficiency, good EMC performance
·Low height (13.1mm), small footprint
·Mains voltage compatible, 1.5kV AC isolation
· -40°C to 125°C operating temp
·Suitable for active PFC, 75-250W SMPS, lighting

Common Applications:

· Active power factor correction (PFC) capability
· Designed specifically for lighting applications
· Switch-mode power supply range: 75 W – 250 W
· Discontinuous conduction mode (DCM) operation

FAQ：

Q：Do you support global ODM/OEM cooperation?
A：Yes. We have full-process global ODM/OEM service capabilities. According to the needs of customers in different countries/regions (such as adapting to local voltage standards and meeting regional certification requirements), we provide integrated services from product design (relying on R&D cooperation resources with 211 universities and Nanjing Agricultural University), prototyping, mass production to logistics and distribution. Currently, we have provided ODM/OEM cooperation for customers in more than 20 countries, including North America, Europe, and Southeast Asia. We can achieve nearby delivery through our overseas distribution network to shorten the supply chain cycle.

Quantity:
Availability:





Inquiry

PFC Chokes

Product Description

Download

Product Overview

The RM14 PFC choke is engineered for high-power active power factor correction (PFC) stages, particularly in boost topology AC-DC converters. It is designed to handle higher energy throughput and current stress compared to smaller RM series inductors, making it suitable for demanding power supply environments.

Leveraging a larger RM14 ferrite core, the inductor provides enhanced magnetic energy storage capability and improved current handling performance, ideal for medium-to-high power systems typically above 150W.

Core Structure & Magnetic Performance

The RM14 core structure offers a balanced combination of magnetic efficiency and shielding capability. Its closed magnetic path reduces flux leakage and enhances EMI performance, which is critical in high-density power electronics.

Large effective cross-sectional area improves energy storage capacity
Low magnetic loss materials support high-frequency switching
Uniform magnetic flux distribution reduces localized saturation risk

RM cores are widely recognized for efficient PCB utilization and stable magnetic characteristics in industrial applications.

Application Scenarios

The RM14 PFC choke is widely used in systems requiring high efficiency and power density:

High-power AC-DC switching power supplies
Server and data center power units
Industrial automation equipment
EV chargers and energy storage systems
Telecom and networking infrastructure

PFC chokes are essential in reducing harmonic currents and improving overall system efficiency in modern power electronics.

Physical Propertie

Order Code

V_IN

(μH)

I_R

(A)

I_SAT

(A)

R_{DC1 max}
(mΩ)

R_{DC2 max}
(mΩ)

V_T
(V(AC))

INF-RM14-180μH

85-265V(AC)

180

9:1

13.2

200

1500

INF-RM14-225μH

85-265V(AC)

225

39:4

2.4

12.4

200

1500

Technical Specifications

屏幕截图 2025-10-24 134139

Customization & Procurement

Main Category	Subcategory	Details
MOQ	Prototyping & Small-batch	10 piece minimum order
	Sample Service	Free proofing & custom service, 5 free samples (shipping at buyer’s cost)
	Bulk Order	5,000 pieces and above with bulk pricing
Lead Time	All Standard Components	Shipped within 5–7 working days
	Custom Inductance / Pin Design (Sample)	Sample order confirmed within 5–7 working days
	Custom Inductance / Pin Design (Mass Order)	Shipped within 15–30 working days
Payment Terms	Main Payment Term	T/T in advance, L/C at sight
	Procurement Standard	Complies with global enterprise procurement standard for passive components
	Quality Deposit	No quality security deposit required
	Accepted Terms	FOB Shanghai / Nanjing / Hong Kong, T/T Advance
Quality Assurance	Manufacturing Defects	Free replacement for issues caused by manufacturing defects
Quality Assurance	Inspection Report	Batch inspection reports available as certification upon customer request
Packaging Specifications	Updated Packaging (2026)	Blister tray packaging; Sealed Tape & Reel for SMD products
Packaging Specifications	Optional Packaging	Vacuum sealed packaging for customers with strict moisture-proof requirements