We have passed ISO9001,CE,SGS approval and IEC report EFD type Transformer Parameters Model Pin Dimension A B C D E EFD-12 8 6 17 20 3.0 13.5 EFD-15 10 7.3 18.2 21.35 2.5 15 EFD-15 10 7.5 19.3 22.6 3.0 16.7 EFD-20 10 9.4 25.3 27.7 3.75 21.7 EFD-20 12 9.7 24 26.8 3 20 EFD-25 10 13.4 29.7 35.4 5 25 EFD-25 10 12.6 29.7 31.5 5 25 EFD-30 12 12.6 31.6 35.5 5 30 1).Features: Has a strong anti-interference, distributed capacitance, impedance, attenuation of low transmission, firm structure,can fine-tune the inductance, etc., are widely used in fax machines, PBX. 2). Applicable frequency range: 20 to 100kHz : Operating frequency: higher than 200kHz High magnetic flux and low loss magnetic materials With low leakage inductance and high efficiency . 3).Applications: PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments. UL insulation system for Class B (130), F (155), H (180) 4). Can make other customized Ferrite transformers: Power range: core type using N67 grade material 500: ETD54, ETD59 and E65 5)Advantage: 1.UL, CUL, CE, ISO9001:2008 2.We offer custom-made transformers, OEM and ODM are welcome 3.We deliver the quality you expect at consistently competitive prices 4.Transformer quality lifetime:10 Years. 5.Specialty Sales service:5 -10 Years 6.Transformers Test: 100% test before the shipment 1).Terms of Shipment: Within 10 working days after received related prepayment or L/C. 2).Payment terms: (1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before delivery. (2). By irrevocable L/C at sight, to be issued immediately against confirmed order. (3). Payment by T/T, if order amount is less than USD 20,000. 3).Flow chart of trading activities: NO Step Days need 1 Request for quotation 1 day 2 Making quotations 1 day 3 Offer and counter offer 3 days 4 Sending and receiving samples 3-10 days 5 Sample confirmation 3 days 6 Placing a firm order 1 day 7 Paying and receiving the down payment 1-4 day 8 Factory production & Quality inspection 15-20 days 9 Paying and receiving the balance 4 days 10 Delivery of goods 1 days