ETD series horizontal ETD34 large power transformer High frequency
UL compliant low height Screen protect
Features:
1. Custom designs available
2. High efficiency of over 95%
3. High frequency range 1KHz-1MHz
4. High isolation strength
5. High-temperature resistant
6. Operating temperature -40°C to +125°C
7. Power range 10w-500w
ETD Transformer
Quick Details
Place of Origin: Guangdong, China (Mainland)
Brand Name: Greenfair, GFE, GE
Model Number: ETD29, ETD34, ETD39, ETD44, ETD49.
Usage: High Frequency
Phase: Single
Coil Structure: Toroidal
Coil Number: Autotransformer
color: yellow
size: horizontal
Bobbin material: Phenolic
Specifications
UL compliant lighting transformer
low height
litz wire, triple wire using
big power
Application:
Power supply Driver
Lighting appliance
Communication equipment
LCD Power Supply
Converter and inverter
| WINDING PARAMETER: |
| WINDING ORDER | MATERIAL SPEC. | MARGIN TAPE | TUBE TYPE | S--F | TURNS | WINDING
FASHION | ISOLATION BETWEEN WINDING |
| TOP | PIN | S | F |
| N1A | USTC 2UEWF ￠0.05*100P | | | TFL | TFL | FA--X | 15TS | CLOSED | |
| N2 | 2UEWF￠1.0*1P | | | TFL | TFL | 1---2 | 3TS | CLOSED | |
| N1B | USTC 2UEWF ￠0.05*100P | | | TFL | TFL | X----FB | 15TS | CLOSED | |
| N3 | 2UEWF￠1.0*1P | | | TFL | TFL | 3---4 | 3TS | CLOSED | |
| ELECTRICAL CHARACTERISTIC: |
| NO. | ITEM | MEASURE POINT | TECHNICAL DATA | REMARK |
| 1 | INDUCTANCE | 1--2/3--4 | 2.6uH NOM | 1 KHz 0.25V CH-1061 |
| FA--FB | 250uH±10% | 1 KHz 0.25V CH-1061 |
| 2 | DCR | FA--FB | 400mΩMAX | AT 25℃ |
| 3 | HI-POT | PRI--SEC | 2.0KVAC | 5mA/60S |
| MATERIAL LIST: |
| NO. | MATERIAL NAME | MATERIAL SPEC. | PROVIDER | UL·NO |
| 1 | CORE | ETD39 TP4 | TDG OR EQUIVALENT | |
| 2 |
BOBBIN | PBT UL94V-0 | CHANG CHUN OR EQUIVALENT | E59481 |
| 3 | BASE | FR4 UL94V-0 | HON TAI OR EQUIVALENT | E122230 |
| 4 | WIRE | MW79C 2UEWF 155℃ | DENGGAODA OR EQUIVALENT | E253843 |
| 5 | WIRE | USTC TYPE:2UEWF￠0.05*100P | DENGGAODA OR EQUIVALENT | E253843 |
| 6 | SLEEVE | TEFLON TUBE
TYPE:TFL 150V 200℃ | WOER OR EQUIVALENT | E23950 |
| 7 | SLEEVE | HEAT SHRINKABLE SLEEVE
TYPE:RSFR-X 125℃ | WOER OR EQUIVALENT | E23950 |
| 8 | VARNISH | 8562/A 155℃ | HENG CHANG OR EQUIVALENT | E200154 |
| 9 | ADHESIVE | E-500 910A/B BLACK | EATTO JIAGANG | E213711 |
General information:
It is recommended that the temperature of the part does not exceed
+125°C under worst case conditions.
Storage Temperature: -40°C to 85°C
Operating Temperature: -40°C to 125°C
Test conditions of Electrical Properties: 20°C, 33% RH if not
specified differently
| OPERATING TEMPERATURE RANGE, PACKAGE QUANTITY, PRODUCT WEIGHT |
| Temperature range | Humidity range | Standard test conditions |
| Operating temperature* | Storage temperature | Operating temperature** | Storage temperature** | Operating temperature** | Storage temperature** |
| ( ℃) | ( ℃) | ( % RH) | ( % RH) | ( ℃) | ( % RH) |
| -30 to +120 | -40 to +80 | 10 to +95 | 10 to +95 | 25 ± 10 | 25 to +75 |
* With self-heating
** Maximum wet-bulb temperature 38°C, without dewing
*** Without dewing
