Nexperia USA Inc. MMBZ5V6A-TR

Overview

MMBZ5V6A-TR from Nexperia is a unidirectional double ESD protection diode in common-anode SOT23 configuration, designed for low-capacitance transient suppression on two signal lines. It delivers 3 V reverse standoff voltage, 13 V typical clamping at 18 A peak pulse current, and 200–240 pF capacitance at 1 MHz - enabling robust IEC 61000-4-2 (±30 kV) protection in high-speed USB, audio, and sensor interfaces.

For engineers reviewing the MMBZ5V6A-TR datasheet, MMBZ5V6A-TR pinout, MMBZ5V6A-TR application, or MMBZ5V6A-TR equivalent, key selection criteria include its dual-line unidirectional topology, ultra-low leakage (<200 nA), tight VBR (5.1–6.1 V), thermal resistance (Rth(j-a) = 417 K/W), and compatibility with FR4 PCB layouts requiring minimal trace inductance.

Technical Context

This device implements a common-anode dual-diode structure optimized for bidirectional surge handling on a single line or independent unidirectional protection of two separate lines. Its low 200–240 pF capacitance and 13 V clamping voltage at 18 A (8/20 µs) ensure signal integrity in 100 Mbps+ data paths without compromising ESD immunity.

The diode operates with a 3 V reverse standoff voltage and 5.6 V nominal breakdown (1 mA), delivering fast response to ESD events per IEC 61000-4-2 while maintaining <200 nA leakage at VRWM. Junction temperature is rated to 150 °C, supporting operation in thermally constrained portable and automotive-adjacent environments.

Key Specifications

Pinout & Package

Encapsulated in a standard SOT23 (TO-236AB) plastic surface-mount package measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch, the MMBZ5V6A-TR uses a three-terminal common-anode configuration optimized for compact PCB layout and reflow compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NUP4105MR6T1G and ESDBLE5.0D1W, the MMBZ5V6A-TR uniquely balances dual-line integration, 3 V compatibility, and 200+ pF tolerance - making it optimal for cost-sensitive, space-constrained 3.3 V interface protection where moderate speed and high surge resilience are prioritized.

Availability

MMBZ5V6A-TR is available at Aetrix Electronics and suitable for USB 2.0 interface protection, portable audio input conditioning, and industrial sensor signal routing requiring stable component supply and consistent ESD performance across production batches.

Supply support for MMBZ5V6A-TR 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

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

The MMBZ5V6A-TR belongs to Nexperia's ESD protection portfolio, engineered specifically for low-capacitance, high-surge-resilience protection of high-speed and mixed-signal interfaces in space-constrained portable and embedded systems.

FAQ

What is the maximum peak pulse current the MMBZ5V6A-TR can handle?

The MMBZ5V6A-TR is rated for 18 A peak pulse current under IEC 61000-4-5 8/20 µs waveform conditions. This value is confirmed in Table 1 (Quick reference data) and Table 5 (Limiting values) of the official Nexperia datasheet dated 4 December 2023. It reflects the device's ability to safely shunt transient energy without failure when properly mounted on FR4 PCB with recommended layout practices.

Can the MMBZ5V6A-TR be used for bidirectional protection of a single line?

Yes - the common-anode configuration allows bidirectional protection of one signal line by connecting the line to both cathodes (pins 1 and 2) and grounding the common anode (pin 3). This is explicitly stated in Section 2 ("Features and benefits") and illustrated in Figure 6 of the datasheet, where the "bidirectional protection of one line" use case is diagrammed alongside dual-line unidirectional operation.

What is the thermal resistance from junction to ambient for this device?

The junction-to-ambient thermal resistance (Rth(j-a)) is 417 K/W under standard test conditions: mounted on single-sided copper FR4 PCB with tin-plated finish and standard SOT23 footprint. This value is specified in Table 6 ("Thermal characteristics") and supports continuous operation up to 150 °C junction temperature when applied within derated power limits.

Does the MMBZ5V6A-TR meet automotive qualification standards?

No - the official Nexperia datasheet states "Non-automotive qualified products" in Section 15 and clarifies that unless explicitly designated as AEC-Q200 qualified, the device is not tested or warranted for automotive use. The MMBZ5V6A-TR carries no AEC-Q200 rating and is intended for industrial, consumer, and computing applications only.