PCB Audio Isolation Transformer 8V:80V 1.5KV for Modems

This audio transformer features a PCB-mount design with an impedance of 8V:80V, suitable for audio systems and telecom isolation applications. Withstand voltage test: 1.5KV/50Hz/1 minute (Primary-Secondary-Core). Insulation resistance: ≥10MΩ (DC500V). Temperature rise: ≤30°C (rated load, resistance method measurement). Bobbin model: 2811 SK6. Material: Nylon 6/6. Weight: <3g. Wire material: UL3321 Teflon (EN50306-2). Operating temperature: -25 to +125°C. Storage temperature: -25 to +85°C. It is widely used in audio systems, telecom isolation, modems, and SMD fax modems.

FEATURES

1. RoHS Directive-compliant
2. Widely used in audio systems
3. Isolated telecommunication transformer
4. SMD fax modem telecom transformers SMD
5. Audio meets UL 1950 or EN60950 telecom transformer

Electrical specification

1. Impedance: Primary (Blk-Grn) /Z/ 8V+/-10%;
secondary (Blk-Yel) /Z/80V+/-10%
2. DCR: Secondary(Blk-Yel) 27.3V+/-10%@20℃
Primary(Blk-Grn) 0.83V+/-10%@20℃
3. Exciting current: Input Primary 3 V 1kHz, 395mA Max.(Blk—Grn).
4. Hi-Pot: AC 1.5kv 50Hz for one minute between Primary to secondary ＆core.
AC1.5kv 50Hz for one minute between core to secondary. (At an alternative potentials 20% higher may be applied for one second. Cut-off Current 1mA)
5. Insulation test: DC500VAC10MΩ min . Between windings and between windings & core.
6. Temperature rise: less than 30deg for rated load, Measured by, resistance method.
7. Bobbin type 2811 SK6,Material:Nylon 6/6 weight <3g
8. Wires: according to UL3321 TEFLON(EN50306-2)

9. Operating temperature:-25 to +125°C

10. Storage temperature: -25 to +85°C

Applications

• Audio systems

• Telecom isolation

• Modems

• SMD fax modems

• Audio signal isolation

• Broadcast equipment

• Communication equipment

• PCB-mount audio equipment

Shinhom Policy of quality control

It is Shinhom surviving lifeline to seek for customer satisfaction,which can be gained by a combination of superior quality,reasonable delivery time , competitive prices as well as customer-oriented services,so as to ensure that the turned out products measure up to customers,demands .

FAQ

Q: What does 8V:80V impedance mean?

A: 8V:80V indicates the voltage transformation ratio of the transformer. When the primary input is 8V, the secondary output is 80V (turns ratio approximately 1:10). This parameter corresponds to the transformer's impedance transformation function, used for audio signal voltage amplification or impedance matching.

Q: What are the advantages of Teflon wire (UL3321)?

A: Teflon wire (UL3321) offers excellent high-temperature resistance, chemical resistance, and insulation performance, ensuring electrical reliability and environmental adaptability of the transformer during long-term use.

Q: How to apply for samples? What is the lead time?

A: You can submit a sample application through our website or email. Please provide your company information and target model. Samples are free of charge and will be shipped within 3-5 working days. Mass order lead time is generally 2-8 weeks.