Diodes Incorporated DDZ5V6BS-7

Overview

DDZ5V6BS-7 from Diodes Incorporated is a surface-mount precision Zener diode in SOD323 package, designed for voltage regulation and reference applications with nominal Zener voltage 5.45–5.73 V at 20 mA, maximum Zener impedance 11 Ω at I_ZT, and leakage current ≤0.5 µA at 2.5 V reverse bias. It delivers stable reference performance in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.

For engineers reviewing the DDZ5V6BS-7 datasheet, DDZ5V6BS-7 pinout, DDZ5V6BS-7 application, or DDZ5V6BS-7 equivalent, key selection criteria include tight V_Z tolerance (±2.5%), low dynamic impedance, thermal stability across -65°C to +150°C, and compatibility with automated SMT assembly on FR-4 PCBs using standard SOD323 pad layout.

Technical Context

This Zener diode operates in reverse breakdown mode with sharp knee characteristics and low temperature coefficient-typical TC of V_Z near 0.02%/°C for 5.6 V devices per Fig. 12. Its design targets high-precision DC voltage references where minimal drift and predictable impedance under varying load currents are critical.

The device uses alloy-42 leadframe with matte tin annealed terminals, rated for 200 mW power dissipation at 25°C and derated linearly above 25°C (625°C/W R_θJA). Polarity is marked by cathode band; moisture sensitivity level is J-STD-020 Level 1.

Key Specifications

Pinout & Package

Package: SOD323 - ultra-small plastic molded case (1.30 mm × 1.70 mm × 1.05 mm), cathode-banded polarity, weight ≈ 0.004 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C5V6 and MMSZ5232B, DDZ5V6BS-7 offers superior voltage accuracy (±2.5% vs ±5%), lower dynamic impedance (11 Ω vs ≥17 Ω), and smaller SOD323 footprint-making it optimal for space-constrained, high-accuracy reference designs where thermal and parametric stability are prioritized.

Availability

DDZ5V6BS-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery reference, and programmable logic controller (PLC) input protection requiring stable component supply, consistent Zener voltage matching, and RoHS-compliant sourcing.

Supply support for DDZ5V6BS-7 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, energy-efficient components for industrial, computing, consumer, and automotive markets.

DDZ5V6BS-7 belongs to the DDZxxS precision Zener diode product line, engineered specifically for applications demanding tight voltage tolerance, low leakage, and robust SMT manufacturability in compact footprints.

FAQ

What is the maximum reverse voltage (V_R) at which DDZ5V6BS-7 guarantees ≤0.5 µA leakage?

Per DS30414 Rev. 10-2 Table "Electrical Characteristics", DDZ5V6BS-7 specifies maximum reverse current I_R ≤ 0.5 µA at V_R = 2.5 V. This value is measured under standard test conditions (T_A = +25°C, short-duration pulse) and defines the upper limit of usable reverse bias before leakage rises significantly.

Can DDZ5V6BS-7 be used in place of a 5.6 V Zener with higher power rating?

No-DDZ5V6BS-7 is rated for 200 mW at 25°C and must be thermally derated above that temperature (625°C/W R_θJA). Substituting it for a higher-power Zener (e.g., 500 mW through-hole part) risks thermal runaway under sustained load. Always verify power dissipation using actual I_Z and ambient conditions per Fig. 1 derating curve.

Is the SOD323 package of DDZ5V6BS-7 compatible with standard 0805 reflow profiles?

Yes-the SOD323 package is dimensionally compatible with 0805 land patterns (1.30 mm × 1.70 mm body), and Diodes Incorporated qualifies it for standard Pb-free reflow per JEDEC J-STD-020. The device's Level 1 moisture sensitivity allows floor life unlimited at ≤30°C/60% RH, eliminating bake requirements prior to assembly.

Does DDZ5V6BS-7 have a specified temperature coefficient (TC) for V_Z?

Yes-Fig. 12 in DS30414 shows typical TC of V_Z ≈ +0.02%/°C for 5.6 V Zeners like DDZ5V6BS-7, measured at I_ZT = 5 mA. This low positive coefficient enables stable reference performance across -65°C to +150°C, especially when paired with complementary TC components in compensated circuits.