Single and dual-channel passive filter network with ESD protection

The IP4256CZ3-M is a single-channel low-pass filter while the IP4256CZ5-W and IP4256CZ6-F are dual-channel RC low-pass filters. All devices provide high-level ElectroStatic Discharge (ESD) protection.

The devices are designed to protect a range of portable communication transmitter applications against unwanted RF signals. The devices incorporate diodes to provide protection to downstream components from ESD voltages up to ±25 kV contact discharge far exceeding IEC 61000-4-2, level 4.

The devices are manufactured using monolithic silicon technology in lead-free plastic packages.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
IP4256CZ5-W IP4256CZ5-W,115 934063153115 SOT665 Order product


  • Pb-free, Restriction of Hazardous Substances (RoHS) compliant and free of halogen and antimony (Dark Green compliant)
  • 100 Ω series channel resistance and 30 pF channel capacitance at 0 V bias voltage (DC)
  • ESD protection up to ±25 kV contact discharge far exceeding IEC 61000-4-2, level 4
  • Single and dual-channel integrated π-type RC filter network
  • IP4256CZ3-M: single-channel device in a 3-pin Quad Flat-pack No-leads (QFN) compatible MicroPak plastic package
  • IP4256CZ5-W: dual-channel device in a 5-pin plastic package with 0.5 mm pitch
  • IP4256CZ6-F: dual-channel device in a 6-pin QFN compatible MicroPak plastic package with 0.5 mm pitch

Target applications

  • General-purpose ElectroMagnetic Interference (EMI), Radio Frequency Interference (RFI) filtering and downstream ESD protection for:
    • Cellular phone and Personal Communication System (PCS) mobile handset
    • Cordless telephone
    • Wireless data (WAN/LAN) system


Type numberPackage versionPackage nameSize (mm)No of protected linesRline [typ] (Ohm)VRWM (V)Cd [typ] (pF)Ls(ch) [typ] (nH)VESD IEC61000-4-2 (kV)IRM [typ] ( µA)VBR [min] (V)
IP4256CZ5-WSOT665SOT6651.6 x 1.2 x 0.5521005.6300250.15.8


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
( 9340 631 53115 )

SOT665Reel 7" Q1/T1

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (3)

File nameTitleTypeDate
IP4256CZ3-M_CZ5-W_CZ6-FSingle and dual-channel passive filter network with ESD protectionData sheet2010-08-10
SOT665_115Tape reel SMD; standard product orientation 12NC ending 115Packing2012-12-03
SOT665plastic, surface-mounted package; 5 leads; 1 mm pitch; 1.6 mm x 1.2 mm x 0.55 mm bodyOutline drawing2017-01-30


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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
IP4256CZ5-WIP4256CZ5-W,115934063153115Reel 7" Q1/T1Order product


As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.