HR051067

Part: HRO51067

Type: Flyback/Isolated Power Transformer

Description: Isolated power transformer for 36–72 V input and 5 V, 1.4 A output, with 155 μH primary inductance and 1500 Vrms primary-to-secondary isolation.

Operating Conditions:

• Supply voltage: 36–72 V (input)
• Operating temperature: -40 to +85 °C
• Output: 5 V, 1.4 A

Absolute Maximum Ratings:

• Storage temperature: -40 to +85 °C

Key Specs:

• Pin 3–4 inductance: 155.0 μH ±10% @ 250 kHz, 0.1 Vrms
• Pin 3–4 inductance: 139.5 μH min @ 250 kHz, 0.1 Vrms, with +0.65 A bias
• Pin 3–4 leakage inductance: 3.60 μH max @ 250 kHz, 0.1 Vrms (other windings shorted)
• Turns ratio (P3-4 : P2-1 : P5,6-7,8): 1 : 0.667 : 0.262 @ 100 kHz, 0.1 Vrms (pins 5+6 and 7+8 tied)
• DC resistance, Pin 3–4: 414.0 mΩ max
• DC resistance, Pin 2–1: 822.0 mΩ max
• DC resistance, Pin 5,6–7,8: 60.0 mΩ max (pins 5+6 and 7+8 tied)
• Isolation: 1500 Vrms, 1 mA, 60 s (primary and bias to secondary); 600 Vrms, 1 mA, 60 s (primary to bias)
• Isolation: 600 Vrms, 1 mA, 60 s (windings to core)

Features:

• RoHS compliant (Pb free)
• Multiple windings (primary, bias, secondary)
• 1500 Vrms isolation between primary and secondary

Applications:

• Isolated DC-DC converters (36–72 V input, 5 V output)