2KVrms Voltage Isolation ISDN-S0 Interface Transformer
40T Series
ISDN-S0 Interface 2KVrms Isolation Telecom Product
Telecom transformer is designed for ISDN applications.
40T series has excellent longitudinal balance and 2KVrms isolation voltage. This series is recognized by UL 1950.
Yuan Dean can provide high efficiency production solutions and customized products.
Any OEM/ ODM requirement is welcome. We look forward to cooperating with you!

Features
- Excellent longitudinal balance.
- 2KVrms voltage isolation.
- Recognized by UL 1950.
Applications
- computer equipment.
- Internet equipment.
- industrial control.
- telecom equipment.
Test Conditions
- Inductance ------------------10KHZ/200mV.
- Leakage Inductance --------100KHZ/1V.
- Interwinding Capacitance --1MHZ/1V.
Electrical Specifications@25°C
Part Number | Ratio (± 2%) | OCL Pri. (mH min.) | LL Sec. (uH max.) | CW/W (pf max.) | CD Pri. (pf max.) | DCR Pri. (Ω ± 15%) | DCR Sec. (Ω ± 15%) | Δ Idc (mA max.) |
---|---|---|---|---|---|---|---|---|
40T-2231ANL | 1CT:1CT | 22 | 5 | 100 | 40 | 2.4 | 2.4 | 1 |
40T-2232BNL | 1CT:1.8CS | 22 | 15 | 100 | 140 | 2.5 | 4.2 | 1 |
40T-2233ANL | 1CT:2CT | 22 | 15 | 100 | 80 | 2.3 | 4.0 | 1 |
40T-2234BNL | 1CT:2.5CS | 22 | 20 | 100 | 290 | 2.5 | 5.8 | 1 |
40T-2235CNL | 1CS:2.5CS | 22 | 15-40 | 100 | 290 | 2.5 | 5.8 | 1 |
40T-2236ANL | 1CT:2CT | 22 | 11 | 100 | 180 | 2.5 | 5.0 | 1 |
Certification


- Mechanicals and DimensionsRelated ProductsFiles Download
2KVrms Voltage Isolation ISDN-S0 Interface Transformer - ISDN-S0 Interface 2KVrms Isolation Telecom Product | Taiwan-Based Power Supply & Magnetic Components Manufacturer | YUAN DEAN SCIENTIFIC CO., LTD.
Based in Taiwan since 1990, YUAN DEAN SCIENTIFIC CO., LTD. has been a power converter, transformer, magnetic components manufacturer in Electronic Components Industry. Their main products, include 2KVrms Voltage Isolation ISDN-S0 Interface Transformer, DC-DC Converters, AC-DC Converters, RJ45 Magnetics, Converter Transformers, LAN Filters, High Frequency Transformers, POE Transformers, Inductors and LED drivers, which are RoHS approved with ERP system implemented.
YDS was established in 1990 at Tainan, Taiwan and our factory Ho Mao electronics was established in 1995 at Xiamen, China. We are the leading electronic manufacturer with ISO 9001, ISO 14001 and IATF16949 certified. We Produce various products such as DC/DC converter, AC/DC converter, RJ45 with magnetics, 10/100/1G/2.5G/10G Base-T Lan filter, all kinds of Transformer, Inductor, LED Driver/Lighting products and Power bank. ISO 9001 & ISO 14001, IATF16949 certified power converter, high frequency transformer, magnetic component with reliable EMC and EMI / EMS / EDS lab tests. Power converter solutions for medical, railway, POE, etc.
YDS has been offering customers high-quality power supply and magnetic components, both with advanced technology and 25 years of experience, YDS ensures each customer's demands are met.