POE21PR-33ED Ferrite Transformer Flyback and Forward Transformers

• Flyback and Forward transformers for PoE up to 72 Watts
• Operates with 9 – 57 V input (POE21, 22, 24, 33, 35 and 38)
• Operates with 33 – 57 V input (POE23, 30, 36, 53, 70, and 72)
• One minute isolation (hipot): 1500Vrms, from pri and aux to each
sec; 500Vrms from pri to aux; 500Vrms between two secondary
• Dual outputs can be configured as one single higher power output
• AEC-Q200 Grade 1 (–40°C to +125°C)

Core material Ferrite

Environment RoHS compliant, halogen free

Terminations Tin-silver-copper over tin over nickel over phos bronze

Weight 7.1 – 7.9 g

Ambient temperature –40°C to +125°C

Maximum part temperature +165°C (Ambient + temp rise)

Storage temperature Component: –40°C to +165°C

Tape and reel packaging: –40°C to +80°C

Resistance to soldering heat Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles

Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C / 85% relative humidity)

Failures in Time (FIT) / Mean Time Between Failures (MTBF)

38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

1. Packaging: D = 13″ machine-ready reel. EIA-481 embossed plastic
tape (150 parts per full reel). Quantities less than
full reel available: in tape (not machine ready) or
with leader and trailer ($25 charge).
2. Inductance is for the primary, measured at 200 kHz, 0.1 Vrms, 0 Adc.
3. Leakage inductance measured between pins 1 and 3 with all other
pins shorted.
4. Output is for each secondary. Output of the aux winding is 10 V, 50 mA.
5. Based on 280 mT at 25°C and number of turns on pins 1-3.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

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LINK-PP International Technology Co., Limited, founded in 1997, is a vertically integrated manufacturer specializing in Ethernet magnetic components and high-speed connectivity solutions up to 10G. With over 26 years of experience, our core products include RJ45 modular jacks, MagJacks, discrete magnetics, LAN transformers, SFP/QSFP optical transceivers, and SFP/SFP+ cages and receptacles.

LINK-PP operates in-house stamping, injection molding, and automated assembly facilities, supported by approximately 600 employees and advanced production equipment. With annual sales of USD 30–50 million, we serve global OEMs and CEMs across telecommunications, networking, IoT, industrial, medical, and security markets, delivering reliable standard and customized interconnect solutions worldwide.
 

Key Applications

Products are applied in: Telecommunications, Networking, IoT, Data Centers, Industrial Control & I/O, Medical Electronics, Security & Surveillance, and Military systems.

Typical end devices include: network cards, hubs, routers, switches, embedded motherboards, optical terminals, VoIP gateways, PoE repeaters, webcams and storage devices.