Diodes Incorporated MMBZ5223BTS-7-F

Overview

MMBZ5223BTS-7-F from Diodes Incorporated is a triple-surface-mount Zener diode array in SOT363 package, providing three isolated 2.7 V ±5% Zener elements with 20 mA test current, 1300 Ω maximum Zener impedance at 0.25 mA, and 75 µA maximum reverse leakage at 1.0 V. It serves as precision voltage reference and overvoltage clamp in compact power management and signal conditioning circuits for automotive control modules.

For engineers reviewing the MMBZ5223BTS-7-F datasheet, MMBZ5223BTS-7-F pinout, MMBZ5223BTS-7-F application, or MMBZ5223BTS-7-F equivalent, key selection criteria include nominal Zener voltage tolerance (±5%), low-leakage clamping at 1.0 V, triple-isolated topology in ultra-small SOT363, and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This device integrates three independent Zener diodes in a single SOT363 package, each with specified breakdown at 2.7 V (2.57–2.84 V), tested at I_ZT = 20 mA and I_ZK = 0.25 mA. Its thermal resistance R_θJA is 625 °C/W on FR4 board, enabling stable operation up to +150 °C junction temperature.

The array supports automated assembly with lead-free matte tin plating, moisture sensitivity level 1, and UL 94V-0 flammability rating. Each diode exhibits 1300 Ω max Zener impedance at knee current and 75 µA max IR at VR = 1.0 V - critical for low-power biasing and ESD-sensitive interface protection.

Key Specifications

Pinout & Package

Package: SOT363 - ultra-small surface-mount plastic case, 6-terminal, lead-free matte tin finish, moisture sensitivity level 1, weight ≈ 0.006 g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener array applications.

Compared with BZX84-C2V7LT1G and MMBZ5223BS-7-F, MMBZ5223BTS-7-F uniquely delivers three matched Zener functions in one AEC-Q101-qualified SOT363 package - reducing component count, improving thermal tracking, and enabling compact multi-rail protection without inter-device mismatch.

Availability

MMBZ5223BTS-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C port protection, and medical diagnostic equipment requiring stable component supply and long-term lifecycle assurance.

Supply support for MMBZ5223BTS-7-F 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

This part belongs to the MMBZ52xxBTS series of triple Zener arrays, engineered specifically for space-constrained, high-reliability applications demanding multi-rail voltage regulation and AEC-Q101 compliance.

FAQ

What is the maximum power dissipation per Zener element in MMBZ5223BTS-7-F?

The device has a total power dissipation limit of 200 mW across all three Zeners. Since they are isolated, each element may dissipate up to 200 mW individually if others are unbiased - but thermal coupling in the SOT363 package means derating is required above 25°C ambient. The datasheet specifies 625 °C/W junction-to-ambient thermal resistance on FR4, so at 75°C ambient, safe per-element dissipation drops to ~120 mW.

Can MMBZ5223BTS-7-F be used in reverse-biased avalanche mode for ESD protection?

Yes - its 2.7 V Zener voltage and 75 µA leakage at 1.0 V make it suitable for low-voltage ESD clamping. The device meets IEC 61000-4-2 Level 4 (±8 kV contact) when used with appropriate series impedance. Its 1300 Ω Zener impedance at 0.25 mA ensures predictable turn-on during fast transients without oscillation.

How does the SOT363 pinout differ from standard SOT-23 or SOT-323 packages?

SOT363 has six terminals (A1/A2/A3/C1/C2/C3) arranged in two rows of three, unlike 3-pin SOT-23/SOT-323. Pin 1 (A1) is top-left, pin 2 (C1) is top-center, pin 3 (A2) is top-right, pin 4 (C2) is bottom-left, pin 5 (A3) is bottom-center, pin 6 (C3) is bottom-right - confirmed by Diodes' AP02002 package drawing. This allows independent connection of three anode-cathode pairs.

Is MMBZ5223BTS-7-F compatible with lead-free reflow profiles?

Yes - it is fully lead-free with matte tin plating and qualified to JEDEC J-STD-020D Level 1 moisture sensitivity. The device supports peak reflow temperatures up to 260°C for 30 seconds, matching standard Pb-free SAC305 profiles. Its UL 94V-0 mold compound withstands repeated thermal cycling without delamination.