Diodes Incorporated MMBZ5232BTS-7-F

Overview

MMBZ5232BTS-7-F from Diodes Incorporated is a triple-surface-mount Zener diode array in SOT363 package, providing three isolated 5.6 V ±5% Zener references with 11 Ω dynamic impedance at 20 mA, 5 µA reverse leakage at 3.0 V, and 200 mW total power dissipation. It serves as precision voltage reference and overvoltage clamp in compact DC-DC feedback and I/O protection circuits.

For engineers reviewing the MMBZ5232BTS-7-F datasheet, MMBZ5232BTS-7-F pinout, MMBZ5232BTS-7-F application, or MMBZ5232BTS-7-F equivalent, key selection criteria include zener voltage tolerance (±5%), low dynamic impedance (11 Ω), triple-isolated topology, SOT363 thermal resistance (625 °C/W), and AEC-Q101 qualification for automotive-grade reliability.

Technical Context

This device integrates three independent Zener diodes in a single ultra-small SOT363 package, each with identical electrical characteristics: nominal 5.6 V breakdown, 20 mA test current, and 11 Ω zener impedance at rated current. The triple-isolation enables independent biasing without internal coupling.

Designed for automated SMT assembly, it features matte tin-plated Alloy 42 leads, UL 94V-0 mold compound, and J-STD-020D Level 1 moisture sensitivity. Thermal derating begins at +25°C ambient, with full 200 mW dissipation only at TA ≤ +25°C per Fig. 1.

Key Specifications

Pinout & Package

SOT363 package: 6-terminal, dual-row surface-mount outline with 0.65 mm pitch; molded plastic case rated UL 94V-0; weight ≈ 0.006 g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener reference and clamping applications.

Compared with BZX84-C5V6LT1G and MMBZ5232BS-7-F, MMBZ5232BTS-7-F delivers integrated triple isolation in minimal area, reduces component count by 67%, and maintains tighter zener impedance-critical for synchronized multi-rail feedback stability in compact power designs.

Availability

MMBZ5232BTS-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and consumer power adapter designs requiring stable component supply with AEC-Q101 assurance and lead-free compliance.

Supply support for MMBZ5232BTS-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, specializing in high-reliability components for automotive, industrial, and computing markets.

This part belongs to the MMBZ52xxBTS series of triple Zener arrays, designed specifically for space-constrained, high-volume applications needing multiple precision voltage references or clamps in a single ultra-small package.

FAQ

What is the maximum reverse voltage this device can withstand before breakdown?

The MMBZ5232BTS-7-F has a nominal Zener voltage of 5.6 V with a guaranteed range of 5.32 V to 5.88 V at 20 mA test current. Its reverse breakdown is tightly controlled within this band; operation above 5.88 V under sustained DC conditions exceeds specification and risks parametric shift or degradation.

Can all three Zener diodes operate simultaneously at full power?

No. The 200 mW total power dissipation applies to the entire package. Simultaneous full-power operation of all three diodes would exceed thermal limits. Derating per Fig. 1 requires ambient temperature reduction or individual diode power limitation to maintain safe junction temperature below 150°C.

Is this device suitable for ESD protection in USB data lines?

No. While it offers low capacitance (~25 pF typical at 0 V per Fig. 2), its 5.6 V breakdown voltage and lack of specified ESD robustness (e.g., IEC 61000-4-2 level) make it unsuitable for high-speed data line protection. It is intended for DC voltage reference and low-frequency overvoltage clamping only.

How does the SOT363 package affect solder joint reliability during reflow?

The SOT363 uses matte tin-plated Alloy 42 leads compatible with standard SnPb and lead-free reflow profiles. Its symmetric 6-pin layout and J-STD-020D Level 1 moisture sensitivity ensure high first-pass yield; recommended pad layout is documented in Diodes Inc. AP02001 for optimal wetting and void control.