Diodes Incorporated BZT52C5V6TQ-7-F

Overview

BZT52C5V6TQ-7-F from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 5.6 V, ±5% tolerance (5.2–6.0 V), 300 mW power dissipation, and 40 Ω dynamic impedance at 5 mA test current. It operates across –55 °C to +150 °C and is used for precision voltage regulation and overvoltage protection in low-power analog circuits, sensor biasing, and reference voltage generation.

For engineers reviewing the BZT52C5V6TQ-7-F datasheet, BZT52C5V6TQ-7-F pinout, BZT52C5V6TQ-7-F application, or BZT52C5V6TQ-7-F equivalent, key selection criteria include zener voltage accuracy, thermal stability (–2 mV/°C tempco), low leakage (1.0 µA @ 2.0 V), SOD523 package compatibility, and AEC-Q200 readiness via Q-suffix qualification path.

Technical Context

This Zener diode functions as a two-terminal voltage reference device operating in reverse breakdown mode. Its design centers on stable regulation under low-current conditions (IZT = 5 mA), with specified thermal resistance (RθJA = 417 °C/W) and junction-to-case resistance (RθJC = 160 °C/W) enabling predictable derating on FR-4 PCBs.

The device exhibits a negative temperature coefficient of –2 mV/°C near 5.6 V, ensuring predictable drift behavior in temperature-varying environments. Its maximum reverse current (IR = 1.0 µA @ VR = 2.0 V) and low capacitance (<10 pF typical) support use in noise-sensitive signal conditioning and low-leakage bias networks.

Key Specifications

Pinout & Package

Package: SOD523 - miniature surface-mount plastic package with cathode band marking; dimensions: 1.25 mm × 0.85 mm × 0.65 mm (L × W × H); weight ≈ 0.001 g; moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBZ5232BS-7-F and BZX84-C5V6, BZT52C5V6TQ-7-F delivers superior thermal efficiency in minimal area, tighter regulation stability across temperature, and direct alignment with automotive qualification pathways-making it optimal for next-gen compact, high-reliability systems.

Availability

BZT52C5V6TQ-7-F is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial sensor interfaces, and medical wearable power management requiring stable component supply and long-term lifecycle assurance.

Supply support for BZT52C5V6TQ-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, manufacturing, and sales operations across Asia, Europe, and North America.

BZT52C5V6TQ-7-F belongs to the BZT52C series of precision Zener diodes engineered for voltage regulation, reference, and protection in space-constrained, thermally demanding applications including automotive, industrial, and portable electronics.

FAQ

What is the maximum reverse voltage (VR) this Zener can withstand before breakdown?

The BZT52C5V6TQ-7-F has a nominal zener voltage of 5.6 V, with guaranteed breakdown occurring between 5.2 V and 6.0 V at 5 mA test current. It is not rated for sustained reverse voltage above its specified VZ range; operation beyond 6.0 V risks irreversible damage unless current-limited by external series resistance.

Is this part qualified to AEC-Q200 for automotive use?

The Q-suffix in BZT52C5V6TQ-7-F indicates eligibility for AEC-Q200 qualification, meaning it is manufactured in IATF 16949-certified facilities and supports PPAP documentation. Full qualification requires customer-specific testing per AEC-Q200 Rev H; Diodes provides automotive-grade variants (e.g., BZT52C5V6TQ-7-F) with controlled change management and lot traceability.

How does the SOD523 package affect thermal performance compared to SOD-123?

The SOD523 package has higher thermal resistance (RθJA = 417 °C/W) than SOD-123 (~250 °C/W) due to smaller pad area and reduced copper exposure. However, its flat lead design improves junction-to-case conduction (RθJC = 160 °C/W), making it more effective at transferring heat directly to the PCB when mounted on optimized thermal pads per Diodes' recommended layout (G = 0.80 mm, X = 0.60 mm).

Can this Zener be used in place of a 5.1 V variant for tighter regulation?

No-BZT52C5V6TQ-7-F is specifically rated for 5.6 V (5.2–6.0 V), while BZT52C5V1T offers 5.1 V (4.8–5.4 V). Substituting across voltage grades alters clamping thresholds and may cause overvoltage stress or insufficient protection. Each variant's tempco (–2 mV/°C for 5.6 V vs. –2.7 mV/°C for 5.1 V) also affects thermal drift behavior distinctly.