EFD20 EFD25 EFD30 Type PCB Power High Frequency Audio Transformer SMD for ad to dc converter
EFD type Transformer Parameters
| Brand Name; | GREWIN Transformer | Core structure; | lamination | Coil number; | Autotransformer |
| Place of Origin; | China | Coil Material; | ferrite | Coil Structure; | toroidal |
| Usage; | High Frequency | Model ; | EFD049 | Phase; | single |
| Application; | High-frequency switching power supply and High-frequency inverter power transformer. PBX | ||||
| Deliver time; | Within 15 working days | Package; | Customized standard cartons | ||
| ATTENTION; | YOU CAN CUSTOMIZED ALL SERIERS ACCORDING TO YOUR REQUERMENT | ||||
| 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
<5: RM4, P11/7, EF12.6 and U10
5 to 10: E (F) 16, RM5 and P14/8
10 to 20: RM6, E (F) 20, P18, U15 and EFD15
20 to 50: RM8, P22, RM10 ETD29, E25 and EFD20
50 to 100: ETD29, ETD34, RM12, P30 and EFD25
100 to 200: ETD34, ETD39, ETD44, P36, E30, E42 and EFD30
200 to 500: ETD44, ETD49 and E55
>500: ETD54, ETD59 and E65
Other Related High Frequency Transformer Parameters:
Table1: EE type Transformer Parameters
| EE type transformer | |||||||
| Part No. | Terminal Pins | Dimension mm | Type | Electrical parameter | |||
| A | B | C | Inductance | Output power(W) | |||
| EE-8.3 | 6 | 8.0 | 8.0 | 8.3 | V | 100.0uH | 0.2-3.0 |
| EE-10 | 8 | 11.5 | 10.2 | 10.2 | V | 80.0uH | 0.5-5.0 |
| EE-13 | 10 | 12.0 | 12.5 | 13.0 | V | 120.0uH | 0.5-8.0 |
| EE-16-1 | 6 | 14.8 | 13.3 | 16.0 | V | 90.0uH | 1.0-10.0 |
| EEL-16 | 10 | 28.5 | 16.0 | 21.9 | V | 600.0uH | 2.0-15.0 |
| EE-19-1 | 8 | 17.6 | 16.0 | 19.0 | V | 800.0uH | 3.0-30.0 |
| EEL19 | 10 | 31.5 | 16.0 | 21.1 | V | 1200.0uH | 3.0-30.0 |
| EE-25-1 | 6 | 20.0 | 18.2 | 25.2 | V | 2000.0uH | 3.0-45.0 |
| EEL25 | 8 | 35.3 | 17.5 | 25.2 | V | 2800.0uH | 3.0-45.0 |
| EE-30 | 10 | 21.0 | 29.2 | 30.0 | H | 900.0uH | 3.0-50.0 |
| EE-40 | 14 | 27.6 | 30.5 | 40.0 | H | 1500.0uH | 3.0-55.0 |
| EE-42/15-1 | 12 | 33.8 | 44.0 | 42.0 | H | 2000.0uH | 3.0-80.0 |
| EE-42/20-1 | 12 | 45.0 | 39.8 | 42.0 | V | 1900.0uH | 3.0-90.0 |
| EE-55 | 20 | 50.0 | 50.0 | 55.0 | H | 3000.0uH | 3.0-150.0 |
| EE-65 | 16 | 55.2 | 51.8 | 65.0 | H | 4500.0uH | 3.0-300.0 |
Table2:EPC type Transformer Parameters
| Model | Dimension (mm) | VA | Weight | |||
| A | B | C | f=50KHz | f=100KHz | g | |
| EPC-9.5 | 10 | 5.5 | 10 | 1.1 | 2.5 | 9 |
| EPC-13 | 14 | 9 | 14 | 5 | 8 | 11 |
| EPC-17 | 19 | 11 | 18 | 14 | 20 | 18 |
| EPC-19 | 20 | 13 | 21 | 18 | 27 | 21 |
| EPC-25 | 27 | 17 | 26 | 36 | 59 | 29 |
| EPC-27 | 29 | 17 | 36 | 52 | 75 | 35 |
Table3: ER type Transformer Parameters
| ER Transformer Specification | |||||||
| Model | PIN | Dimension | |||||
| A | B | C+/-0.5 | D+/-0.5 | E | F | ||
| ER25.5 | 8 | 19.5 | 19.7 | 12.5 | 4 | 5 | 25.5 |
| ER28 | 12 | 30.5 | 23 | 17.5 | 4 | 5 | 31 |
| ER28 | 12 | 23.1 | 28.2 | 25 | 4 | 5 | 29.1 |
| ER28 | 12 | 36 | 27 | 20 | 4 | 5 | 30 |
| ER28 | 12 | 26.3 | 37.1 | 30 | 4 | 5 | 30.2 |
| ER33 | 14 | 37.5 | 28 | 22.5 | 4 | 5 | 36 |
| ER35 | 14 | 43.5 | 28 | 22.5 | 4 | 5 | 35.5 |
| ER35 | 16 | 29.1 | 40.3 | 35.4 | 4 | 5 | 40.3 |
| ER39 | 16 | 46 | 31.1 | 25 | 4 | 5 | 43.1 |
| ER39 | 16 | 33 | 41.5 | 30.85 | 4 | 7.5 | 42.3 |
| ER40 | 16 | 48 | 31.1 | 25 | 4 | 5 | 43.1 |
| ER4215 | 14 | 45.5 | 30 | 25 | 4 | 5 | 42 |
| ER4220 | 14 | 44 | 37.5 | 36 | 4 | 5 | 42 |
Table4: PQ type Transformer Parameters
| COILFORMER DIMENSIONS (mm) | |||||||||||||||
TYPE | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O |
PQ20/16 | 23.15 | 17.35 | 23.15 | 20.3 | 2.5 | 9 | 3.8 | 5.1 | 17.9 | 9.7 | 7.82 | 10.8 | 2.4 | 0.6 | 7.35 |
PQ20/20 | 23.15 | 17.35 | 23.15 | 20.3 | 2.5 | 9 | 3.8 | 5.1 | 22 | 13.85 | 12 | 10.8 | 2.4 | 0.6 | 7.35 |
PQ26/20 | 26.6 | 21.85 | 29.75 | 25.4 | - | 12.3 | 3.8 | 7.6 | 21.5 | 11.05 | 9 | 14.2 | 2.4 | 0.65 | 7.2 |
PQ26/25 | 26.6 | 21.85 | 29.75 | 25.4 | - | 12.3 | 3.8 | 7.6 | 26.05 | 15.65 | 13.55 | 14.2 | 2.4 | 0.65 | 7.2 |
PQ32/20 | 32.15 | 26.7 | 34.3 | 30.5 | - | 13.85 | 5.1 | 7.6 | 22.35 | 11.05 | 8.9 | 15.9 | 2.8 | 0.75 | 7.2 |
PQ32/30 | 32.15 | 26.7 | 34.3 | 30.5 | - | 13.85 | 5.1 | 7.6 | 32.15 | 20.85 | 18.7 | 15.9 | 2.8 | 0.75 | 7.2 |
PQ35/35 | 35.00 | 31.0 | 39.0 | - | - | 15 | - | - | 37.4 | - | 22.4 | 16.9 | - | 1 | 5 |
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
About us:
1). Tianjin Grewin Technology Co.,ltd. has always laying great emphasis on our core business philosophy "Quality and Honesty First ".
2)product procedure:
The following picture showed you about GREWIN and production line and
electronic exhibition :
3).Terms of Shipment:
Within 10 working days after received related prepayment or L/C.
4).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.
5).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 |
PLZ Contact us:
Alice Tianjin Grewin Technology Co.,Ltd. Tel: 86-22-84943756 MT:8613072088960 Website: http://transformer.en.made-in-china.com http://transformer.en.made-in-china.com |