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  • Flyback transformers for 30 Watt PoE applications
  • Operating Frequency 250 kHz with input voltage 36 to 72 Volts
  • Isolation 1500 Vrms, 60 seconds (Primary, Auxiliary to Secondary)
P620F Series Flyback Transformers
Dimensional Drawing for P620F Series Flyback Transformers
Unit of Measure
Items P620F Series Flyback Transformers
P620F-33
9 Ampere (A) Secondary Output Current P620F Series Flyback Transformer 		P620F Series Flyback Transformers
P620F-50
6 Ampere (A) Secondary Output Current P620F Series Flyback Transformer 		P620F Series Flyback Transformers
P620F-12
2.50 Ampere (A) Secondary Output Current P620F Series Flyback Transformer 		P620F Series Flyback Transformers
P620F-19
1.50 Ampere (A) Secondary Output Current P620F Series Flyback Transformer 		P620F Series Flyback Transformers
P620F-24
1.25 Ampere (A) Secondary Output Current P620F Series Flyback Transformer
Power N/A 30 W
Primary OCL (±10%) N/A 42 µH
Maximum Primary Direct Current Resistance (DCR) N/A 0.070 mOhm N/A 0.069 mOhm N/A 0.061 mOhm N/A 0.060 mOhm N/A 0.060 mOhm
Maximum Secondary Direct Current Resistance (DCR) N/A 0.0023 mOhm N/A 0.0050 mOhm N/A 0.0150 mOhm N/A 0.0370 mOhm N/A 0.0550 mOhm
Maximum Auxiliary Direct Current Resistance (DCR) N/A 0.220 mOhm N/A 0.225 mOhm N/A 0.195 mOhm N/A 0.195 mOhm N/A 0.195 mOhm
Maximum Primary Inductance LL N/A 3.00 µH N/A 1.60 µH N/A 0.55 µH N/A 0.43 µH N/A 0.31 µH
Primary : Secondary Turns Ratio (±5 %) N/A 1 : 0.09 N/A 1 : 0.14 N/A 1 : 0.33 N/A 1 : 0.56 N/A 1 : 0.67
Primary : Auxiliary Turns Ratio (±5 %) N/A 1 : 0.33
Secondary Output Voltage N/A 3.3 V N/A 5.0 V N/A 12 V N/A 19.5 V N/A 24 V
Secondary Output Current N/A 9 A N/A 6 A N/A 2.50 A N/A 1.50 A N/A 1.25 A
Industry Standards / Certifications N/A RoHS Compliant
Isolation RMS Voltage (Vrms) N/A 1500 V
Isolation Time N/A 60 s
Operating Frequency N/A 250 kHz
Standard Operating Temperature Range N/A -40 to +125 ºC
Available Design N/A custom
Note N/A
  1. Primary OCL measured @ 250 kHz 0.7 Vrms
  2. Primary Leakage L measured @ 250 kHz 0.7 Vrms with 7-8-9-10-11-12 shorted
  3. DCR measured with windings in parallel
  4. Hipot: 1500 Vrms, 1 mA, 60 s (Primary, Auxiliary to Secondary); 1800 Vrms, 1 mA, 5 s (Primary, Auxiliary, and Core to Secondary); 500 Vrms, 1 mA, 5 s (between Primary, Auxiliary, and Core) Polarity: 1, 2, 5, 10, 11, and 12 are in phase
  5. Ipk: 2.6 Adc, Δ L < 10% from initial value
Product performance is limited to specified parameters. Data is subject to change without prior notice.

Dimensions
Unless otherwise specified, all tolerances are:
inch: .XX : ±0.010 .XXX : ±0.005
mm: X.X : ±0.254 X.XX : ±0.13