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Specifications
Isolation Voltage(Vrms):
1.5kV
Inductance:
42uH
Turns Ratio:
1.0:0.33:0.33
Operating Temperature:
-40℃~+85℃
Mfr. Part #:
EFD2040S-12
Package:
SMD-12
Key Attributes
Model Number:
EFD2040S-12
Product Description
Product Overview
This Flyback PoE Transformer, part of the LinkPower series, operates within a 36V-72V input voltage range in condition mode. Designed for switching frequencies up to 250KHz, it features Class B Insulation System and RoHS compliant tin-silver-copper over tin over nickel over phos bronze terminations. The transformer is suitable for operation across a wide temperature range, from -40C to +85C (including coil temperature rise). Its robust construction and reliable performance make it ideal for various power over Ethernet applications.
Product Attributes
- Brand: LinkPower
- Insulation System: Class B
- Terminations: RoHS tin-silver-copper over tin over nickel over phos bronze
- Operating Temperature: -40C to +85C
- Storage Temperature: -40C to +125C
Technical Specifications
| Part Number | Size | Inductance 10% (H) | Inductance IPK 2.6A (H) | Leakage Inductance max(H) | DCR Max(m Ohms) | Turns ratio (Pri:Sec:Aux) | Isolation (Vrms) 60Hz/1Sec | Pri | Sec | Aux |
|---|---|---|---|---|---|---|---|---|---|---|
| EFD2040S-12 | EFD20 | 42 | 37.8 Min | 0.65 | 61 | 15:19.5:19.5 | 1500 | 500 | 1:0.33:0.33 | Coil - core |
Dimensions (mm)
| A (Max) | B (Max) | C (Max) | D (0.15) | E (0.3) |
|---|---|---|---|---|
| 22 | 30 | 12.5 | 0.7 | 3.0 |
Notes on Specifications:
- All data is referenced to 25 ambient.
- Inductance is for primary measured at 250kHz/0A bias current/0.1 Vrms.
- Leakage Inductance is for the primary, measured at 250KHz/0A bias current /0.1Vrms while all other windings shorted together.
Schematics:
BOTTOM VIEW
TOP VIEW
PIN 1
EFD2040S-12 YYWW CND-tek
2410151404_CND-tek-EFD2040S-12_C7544917.pdf
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