Diodes Incorporated DZ23C5V1-7

Overview

DZ23C5V1-7 from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode with nominal zener voltage 5.1V (4.8–5.4V range), ±0.005%/°C temperature coefficient, 60Ω max zener impedance at 5mA, and 0.8V minimum reverse voltage at 0.1µA leakage. It enables precision voltage reference and overvoltage protection in compact power management circuits for industrial sensors and USB-powered peripherals.

For engineers reviewing the DZ23C5V1-7 datasheet, DZ23C5V1-7 pinout, DZ23C5V1-7 application, or DZ23C5V1-7 equivalent, this part supports dual-voltage regulation in space-constrained designs where matched zener characteristics and JEDEC-qualified reliability are required - especially in SOT23-based DC-DC feedback networks and rail-clamp circuits.

Technical Context

This dual Zener operates in common-cathode configuration, allowing independent regulation of two voltage rails sharing one cathode node. Its matched V_Z tolerance (≤5% ΔV_Z between diodes) and low thermal resistance (417°C/W) support stable operation up to +150°C ambient.

The device uses matte tin-plated Alloy 42 lead frame and green molding compound compliant with RoHS 3 and halogen-free standards. It meets JEDEC high-reliability requirements and is qualified for commercial-grade applications with moisture sensitivity level 1 per J-STD-020.

Key Specifications

Pinout & Package

Package: SOT23 - 3-terminal plastic surface-mount package with 0.915 mm pitch, 2.90 mm length, and 1.30 mm width; UL 94V-0 rated, 0.008 g weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX79-C5V1 and DZ23C5V6-7, DZ23C5V1-7 uniquely delivers matched dual 5.1V regulation in one SOT23, enabling compact dual-rail protection and reference generation unachievable with single-Zener alternatives.

Availability

DZ23C5V1-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery clamp circuits, and programmable logic controller I/O protection requiring stable component supply and JEDEC-qualified reliability.

Supply support for DZ23C5V1-7 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-performance, high-reliability components for industrial, computing, and consumer markets.

This part belongs to the DZ23C series of dual common-cathode Zener diodes, designed specifically for space-constrained voltage regulation and overvoltage protection where matched characteristics and SMT automation compatibility are essential.

FAQ

What is the maximum continuous power dissipation for DZ23C5V1-7?

The DZ23C5V1-7 has a rated power dissipation of 300 mW when mounted on an FR4 PCB using the recommended pad layout. Derating begins above +25°C ambient, reaching zero dissipation at +150°C per the published derating curve. This rating assumes natural convection cooling without heatsinking.

Can DZ23C5V1-7 be used in automotive applications?

DZ23C5V1-7 is qualified for commercial use per JEDEC standards. For automotive applications, Diodes offers the Q-suffix variant DZ23C5V1Q-7-F, which is AEC-Q200 qualified, PPAP-capable, and manufactured in IATF 16949 certified facilities. The non-Q version is not approved for safety-critical automotive systems.

How is the common cathode configured in the SOT23 package?

In the SOT23 package, Pin 2 is the common cathode terminal. Pins 1 and 3 serve as the anodes of the two independent Zener diodes. This configuration allows both diodes to share a single reference node while regulating separate input rails - confirmed by the top-view schematic in DS18002 Rev. 22-2.

What does the "-7" suffix indicate in DZ23C5V1-7?

Per Diodes' ordering information, the "-7" suffix denotes tape-and-reel packaging in quantities of 3000 units per reel. It also signals compliance with lead-free plating and RoHS 3 requirements. The "-7-F" variant adds full halogen- and antimony-free ("Green") qualification, but "-7" alone confirms standard lead-free compliance.