NXP Semiconductors IP4281CZ10,115

Overview

IP4281CZ10 from NXP Semiconductors is a 4-channel ESD protection diode array designed specifically for HDMI TMDS signal lines, featuring 0.7 pF channel capacitance, ±8 kV IEC 61000-4-2 contact ESD rating, and rail-to-rail clamping. It enables robust interface protection in high-definition video receivers and transmitters such as TV ports and graphics cards.

For engineers reviewing the IP4281CZ10 datasheet, IP4281CZ10 pinout, IP4281CZ10 application, or IP4281CZ10 equivalent, key selection criteria include differential pair capacitance matching (≤0.05 pF), ultra-thin leadless XSON10U package compatibility, HDMI 1.3a compliance, and low dynamic resistance (1.3–2.4 Ω) under transient stress.

Technical Context

The IP4281CZ10 implements matched, bidirectional rail-to-rail clamping diodes per TMDS differential pair, with Zener breakdown voltage of 6–9 V and forward voltage of 0.7 V. Its architecture targets high-speed serial interfaces where signal integrity depends on sub-1 pF line capacitance and tight inter-pair capacitance matching.

It operates across −40 °C to +85 °C ambient, supports 3.63 V max input voltage, and delivers clamping voltage ≤8 V during ±8 kV HBM transients. The device uses no internal series resistors-clamping relies solely on low-capacitance diode junctions optimized for TMDS impedance preservation.

Key Specifications

Pinout & Package

IP4281CZ10 uses the XSON10U (SOT1059-1) ultra-thin leadless package: 10-terminal, no leads, body size 1.0 × 2.5 × 0.5 mm, exposed thermal pad not present.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ESD protection applications.

Compared with TPD12S016RGER and SP1001-02UTG, the IP4281CZ10 uniquely balances 4-channel integration, 0.7 pF loading, and strict HDMI 1.3a compliance in a single UTLP package - making it optimal for cost- and space-constrained HDMI 1080p endpoints requiring proven ESD robustness without auxiliary signal coverage.

Availability

IP4281CZ10 is available at Aetrix Electronics and suitable for HDMI receiver protection in TVs, notebook graphics ports, set-top boxes, and game consoles requiring stable component supply and long-term industrial availability.

Supply support for IP4281CZ10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and consumer electronics.

The IP4281CZ10 belongs to NXP's high-speed interface protection product line, engineered specifically to safeguard differential signaling standards like HDMI and LVDS against ESD without degrading signal integrity.

FAQ

What is the maximum operating voltage for the IP4281CZ10?

The IP4281CZ10 supports a maximum input voltage of +3.63 V relative to GND, as specified in its limiting values table. This rating ensures safe operation across standard 3.3 V HDMI signaling environments. The device's Zener breakdown voltage (6–9 V) provides headroom for transient clamping, but continuous DC operation must remain within the +3.63 V absolute maximum to prevent degradation. IP4281CZ10 is not rated for 5 V rail operation.

Does the IP4281CZ10 require external biasing or power supply connections?

No, the IP4281CZ10 operates passively with no external power or bias required. Its rail-to-rail clamping diodes connect directly between TMDS signal lines and GND, using only the signal's own voltage swing to activate protection. There is no VCC pin or control logic - the IP4281CZ10 functions purely as a bidirectional ESD suppressor, simplifying design integration and reducing BOM count.

How does the IP4281CZ10 achieve HDMI 1.3a compliance?

The IP4281CZ10 achieves HDMI 1.3a compliance through verified electrical performance: 0.7 pF channel capacitance, ≤0.05 pF inter-pair capacitance matching, and ≤8 V clamping under ±8 kV HBM transients - all validated per HDMI 1.3a specification Annex A test conditions. Its XSON10U package layout also supports controlled-impedance routing required for TMDS differential pairs at 1.65 Gbps.

Can the n.c. pins (6, 7, 9, 10) on the IP4281CZ10 be grounded or left floating?

The n.c. pins (6, 7, 9, 10) on the IP4281CZ10 must be left unconnected - they have no internal bond wires or circuit connections. Grounding them introduces unnecessary parasitic capacitance and may compromise ESD path symmetry. The official NXP layout guidelines specify these pins as "not connected" and require them to remain floating in both schematic and PCB layout. IP4281CZ10 reliability testing assumes this configuration.

What is the thermal performance of the IP4281CZ10 during ESD events?

The IP4281CZ10 has no thermal derating requirement for single-event ESD pulses due to its low energy absorption profile: transient duration is <100 ns, and peak power dissipation remains below 1 W even at ±8 kV. Its XSON10U package relies on PCB copper mass for heat spreading rather than an exposed thermal pad. No heatsink or thermal vias are needed, and the device operates reliably from −40 °C to +85 °C ambient without thermal throttling. IP4281CZ10 is qualified per JEDEC JESD22-A114.