Common mode choke ET20 / 24 / 28 / 29 / 35 for 50-400KHz ET filter
with wide frequency range and low temperature rise
Function:
1. Excellent impedance balance & EMI efficiency
2. UU line filter with 3 to 380V DC output
3. Design as customer’s specification completely
4. ET filter with wide frequency range and low temperature rise
5. EE line filter with highly reliable, compact & light weight
6. Easily inserted into PCB
7. Provide much better filtering performance
8. As a preventive measure against noise terminal voltage or power
supply in TV or VCR unit
9. Compact and provides a large inductance
10. Prevention of noise emitted from other components
Applications:
1. Countermeasure for noise in broadcasting band
2. Shields against radiated emissions in the broadcasting frequency
for multi-functional telephone sets, PBXs, Faxes, etc.
3. Wide used in Video, Switch power supplyand TV
Parameter:
Operating temperature: -55 to 105°C
Power: 200, 250, 300 and 500W
Voltage: 100V/230, 50Hz
Inductance value is UU16 - 7mH MIN at 1KHz 1V
PF value: greater than 98%
Tested at 100kHz, 0.1Vrms inductance of 10%uH
DC current at which the inductance drops 10% (type) from itsvalue
without current
Electrical characteristics at 25°C
Insulation: class B (130°C), class F (155°C), class H(180°C), class
N (200°C) and class R (220°C)
Certifications: UL, CQC and CE
Excellent utilization of electricity, good for environment
protection
Customized specifications are accepted
| Type | Specification | Inductance Error | Work Frequency |
| ET | ET35 | ±1% | 50-400KHz |
| ET29 | ±1% | 50-400KHz |
| ET28 | ±1% | 50-400KHz |
| ET24 | ±1% | 50-400KHz |
| ET20 | ±1% | 50-400KHz |
| UIUUUF | UI100 | ±2% | 50-400KHz |
| UI93 | ±2% | 50-400KHz |
| UI67 | ±2% | 50-400KHz |
| UF33 | ±2% | 50-400KHz |
| UF25 | ±2% | 50-400KHz |
| UF20 | ±2% | 50-400KHz |
| UYF16 | ±2% | 50-400KHz |
| UU10.5 | ±2% | 50-400KHz |
| UU9.8 | ±2% | 50-400KHz |
| PARAMETERS |
| NO | ITEM | PIN | TECHINICAL DATA | TEST CONDITION |
| 1 | INDUCTANCE | N1=N2 | 8.0mH MIN | 1KHz 1V |
| 2 | DCR | N1=N2 | 150 mΩ MAX | 25±3℃ |
| 3 | HI-POT | COIL--COIL,COIL--CORE | 1.75KV | 5mA 60SEC |
| WINDING PARAMETER: |
| WINDING ORDER | MATERIAL SPEC. | S--F | TURNS | WINDING
FASHION | ISOLATION BETWEEN WINDING |
|
| N1 | 2UEW Φ0.7*1P | 1---3 | 56(REF) | CLOSED | |
| N2 | 2UEW Φ0.7*1P | 2---4 | 56(REF) | CLOSED | |
| MATERIAL LIST: |
| NO. | MATERIAL NAME | MATERIAL SPEC. | PROVIDER | UL·NO |
| 1 | CORE | ET24 TS10＆A10 | TDG OR EQUIVALENT | |
| 2 | BOBBIN | PHENOLIC | CHANG CHUN | E59481 |
| 3 | WIRE | 2UEW | JIANSU DARTONG QING JIANG M&E CO.LTD OR EQUIVALENT | E237377 |
| 4 | EPOXY | 2006A/B | LIDUO OR EQUIVALENT | |
| 5 | VARNISH | 8562(a) | HANG CHEUNG OR EQUIVALENT | E200154 |
Notes:
1. Wire:130°C or150°C.
2. The above specifications for the common specifications,
customers can request custom design.
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
