er28 transformer type and size (example)
| P/N | Bobbin | Shape Size | P/N | Bobbin | Shape Size | |
| RM4 | (3+3PIN)2S | 12.6/10.8/10.4 | EI10 | 4+4PIN | 2.50/8.00 | |
| RM14 | 6+6PIN | 42/41.5/30.1 | EI40 | 6+6PIN | 5.00/22.50 | |
| P/N | Bobbin | Shape Size | EE08 | 2+2PIN | 5.00/6.75 | |
| EFD15 | 4+4PIN | 3.75/13.80 | EE55 | 7+7PIN | 5.00/39.40 | |
| EFD40 | 8+8PIN | 5.00/35.00 | ER28 | 6+6PIN | 5.00/17.50 | |
| EPC13 | (5+5PIN)4S | 2.50/10.50 | ER42 | 8+8PIN | 5.00/35.00 | |
| EPC46.5 | (9+9PIN) | 5.00/35.00 | EE12.6 | SMD(10PIN) | 2.50/17.70 | |
| PQ2016 | 6+8PIN | 2.50/3.80/20.60 | EE19 | SMD(10PIN)6S | 2.50/14.30 | |
| PQ4040 | 6+6PIN | 5.08/15.20/38.10 | EEL18 | SMD(10PIN) | 23.30/50.40 | |
| EL16 | 4+6PIN | 2.70/3.50/12.00 | EEL22 | SMD(3PIN) | 12.50/14.40 | |
| EEL19 | 4+6PIN | 2.70/3.50/12.00 | EFD12 | SMD(8PIN) | 3.00/20.00 | |
| ETD29 | 6+6PIN | 5.00/25.80 | EFD30 | SMD(11PIN) | 3.02/8.05/44.32 | |
| ETD59 | 13+13PIN | 5.08/20.80 | EPC13 | SMD(10PIN) | 2.50/19.60 | |
| EF12 | 5+5PIN | 2.50/10.20 | EPC25 | SMD(12PIN)5S | 3.75/29.70 | |
| EF30 | 6+6PIN | 5.00/25.00 | ER11.5 | SMD(10PIN) | 2.00/12.00 | |
| EF25 | 5+5PIN | 5.00/20.00 | ER14.5 | SMD(10PIN) | 2.50/16.00 |
Specification limit of er28 transformer cores
er28 transformer Material characteristics-R2.0K
| Low Power Loss Mn-Zn Ferrites Series | ||||||||||||||||
| Material Characteristics | Unit | R2.5K | R2.3K | R3K | R2K | |||||||||||
| Initial Permeability | 2500 ±25% | 2300 ±25% | 3000 ±25% | 2000 ±25% | ||||||||||||
| Bs Saturation Magnetic Flux Density @ H=1194A/m | 23°C | mT | 510 | 510 | 470 | 400 | ||||||||||
| 100°C | mT | 400 | 390 | 370 | 300 | |||||||||||
| Br Remanence Fulx Density | 23°C | mT | 117 | 95 | 120 | 130 | ||||||||||
| 100°C | mT | — | — | 85 | 60 | |||||||||||
| Hc Effective Coercivity | 23°C | A/m | 12 | 14.3 | 12 | 18 | ||||||||||
| 100°C | A/m | — | — | 7 | 10 | |||||||||||
| Tanδ/μi Relative Loss Factor@f=100KHZ | ×10-6 | — | — | — | ||||||||||||
| Tc Curie Temperature | °C | >220 | >220 | >190 | >220 | |||||||||||
| ρ Electrical Resistivity | Ω.m | 10 | 6.5 | 3 | 6.4 | |||||||||||
| d Density | Kg/m3 | 4.8 | 4.8 | 4.8 | 4.7 | |||||||||||
| Pc Power Loss | 25KHZ 200mT pcv | 25°C | KW/m3 | 130 | 110 | 160 | ||||||||||
| 60°C | 90 | 75 | — | |||||||||||||
| 100°C | 100 | 70 | 160 | |||||||||||||
| 100KHZ 200mT pcv | 25°C | KW/m3 | 700 | 600 | — | 750 | ||||||||||
| 60°C | 500 | 500 | — | |||||||||||||
| 100°C | 600 | 410 | — | 850 | ||||||||||||
| 120°C | — | 500 | — | |||||||||||||
| 300KHZ 100mT pcv | 25°C | KW/m3 | 660 | — | — | |||||||||||
| 60°C | — | — | — | |||||||||||||
| 100°C | 430 | — | — | |||||||||||||
| 120°C | — | — | — | |||||||||||||
| 500KHZ 50mT pcv | 25°C | KW/m3 | — | — | — | 220 | ||||||||||
| 60°C | — | — | — | |||||||||||||
| 100°C | — | — | — | 250 | ||||||||||||
| 120°C | — | — | — | |||||||||||||
er28 transformer Application
Game machiines,Copy machine,Vcrs.
Printers,Terminals,TV sets,Microcomputer equipments.
Power Module,Switch Power and Adapter.
Telephone Communication Control equipments.
Chargers for Tablets, Mobile phone,Electric Toys .
UPS,DVD,VCD Players,Audio and Vedio equipments.
Product Culture
Payment & Shipping TermsSupply Capacity
| Unit Price: | 0.24~0.55 USD | Production Capacity: | 10000/day |
| Payment Term: | T/T | Packing: | CASE |
| MOQ: | 1000 Pack/Packs | Delivery Date: | 15-30day |
| Means of Transport: | Land, Ocean, Air |
ElectricalCharacteristics:
1.Operating Temperature range:-20 to+45
2.Storage temperature:-40 to70
3.Switching frequency:1KHz to200KHz
4.Withstanding voltage:1500/3750VAC for 1minute between primary andsecondary
5.Insulation resistance:500VDC 100MΩmiin. betweenprimary&secondary.
Specifications
ET Serier ET20 ET24 ET28 ET35 Power line filtering inductor
Any custom-design is available
ET Serier ET20 ET24 ET28 ET35 Power line filtering inductor Features:
• High current capacity
• Low core loss at frequency
• High reliability,efficiency
• Small packaged size
• Operating Temperature: -30°C to +80°C
• Electrical Specifications at 20°C
APPLICATIONS:
1) Compact fluorescent lamp
2) Television receiver
3) Radio cassette player
4) PC power supply
5) Monitor,audio,VCD,DCD
6) UPS
7) The electronic apparatus
8) The noise rejection
9) Induction cooker,etc.
