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NXP Semiconductors MCZ34670EGR2 — Discrete Semiconductors

MCZ34670EGR2 PoE PD Controller, 12.95 W, 802.3af, 20-SOIC

MPNMCZ34670EGR2
End of Life

NXP MCZ34670EGR2, PoE PD Controller with DC/DC control, 802.3af, 12.95 W max, 60 V supply, 4.5 mA supply current, 1 channel, -40 to 85°C, 20-SOIC surface mount.

$3.83Ref. price · indicative, final on quote
NXP Semiconductors MCZ34670EGR2 datasheet (PDF)
Packaging20-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MCZ34670EGR2 specifications
ParameterValue
TypeController (PD), DC/DC
MountingSurface Mount
Supply voltage60V (Max)
Current - supply4.5mA
Power - max12.95 W
Operating temperature-40°C ~ 85°C
Standards802.3af (PoE)
PackageBulk
Case20-SOIC (0.295\", 7.50mm Width)
Auxiliary senseNo
Internal switchNo
Channels1

Product details

It comes in a 20-SOIC (7.50 mm wide) surface-mount package, operates from -40 to 85°C, and is marked as ROHS3 compliant.

No internal switch — plan for the external MOSFET

The MCZ34670EGR2 does not include an internal switching MOSFET. The DC/DC converter stage requires an external N-channel FET, which gives the designer flexibility to choose the Rds(on) and gate charge that match the output voltage and current, but adds two or three BOM lines and a bit of board area. If you are replacing a PD controller that had the switch inside, this part shifts that component to the layout — check the SOIC-20 footprint against your existing board before committing.

Active, current, and available through independent distribution

Frequently asked questions

Does MCZ34670EGR2 support the 802.3af PoE standard?

Yes, the MCZ34670EGR2 is compliant with the 802.3af PoE standard, covering the PD-side detection, classification, and power-good handshake.

Can MCZ34670EGR2 be used in 48V systems?

Yes. The supply voltage is rated up to 60 V max, and 48 V nominal is well within the operating range. The part is designed for standard PoE voltage levels.

Is MCZ34670EGR2 lead-free and RoHS compliant?

Yes, the MCZ34670EGR2 is marked as ROHS3 Compliant.