Diodes Incorporated DZ23C13-7

Overview

DZ23C13-7 from Diodes Incorporated is a dual common-cathode 13V Zener diode pair in SOT23 package, rated for 300mW total power dissipation, with ±8% zener voltage tolerance (12.4–14.1V), 25Ω typical zener impedance at 5mA, and +0.08%/°C temperature coefficient - used for precision voltage reference and overvoltage clamping in dual-rail power monitoring circuits.

For engineers reviewing the DZ23C13-7 datasheet, DZ23C13-7 pinout, DZ23C13-7 application, or DZ23C13-7 equivalent, this device supports dual-voltage regulation in space-constrained DC-DC feedback paths, low-power sensor biasing, and redundant voltage sensing where matched zener characteristics (<5% ΔVZ between diodes) are required.

Technical Context

This dual Zener operates in common-cathode configuration: Pins 1 and 3 serve as independent anodes, while Pin 2 is the shared cathode terminal. Each diode is characterized at I_ZT = 5.0mA with specified V_Z, Z_ZT, and TC.

Thermal resistance is 417°C/W (junction-to-ambient, FR4 board), and it supports operation from –65°C to +150°C. The device meets JEDEC reliability standards and is fully RoHS-compliant with halogen- and antimony-free "Green" molding compound.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic case (0.90–1.15mm height, 2.80–3.00mm length), UL 94V-0 rated, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX79-C13 and DZ23C12-7, DZ23C13-7 uniquely delivers matched dual 13V clamping in one SOT23 footprint - critical for space-limited designs requiring coordinated voltage thresholds without inter-device variation.

Availability

DZ23C13-7 is available at Aetrix Electronics and suitable for industrial power monitoring, automotive body control modules, and IoT sensor node biasing requiring stable component supply and JEDEC-qualified reliability.

Supply support for DZ23C13-7 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, and automotive markets.

DZ23C13-7 belongs to the DZ23C dual-Zener family, designed specifically for compact, matched-voltage reference and clamping in space-constrained power management and protection circuits.

FAQ

What is the maximum continuous reverse current for each Zener in DZ23C13-7?

At 25°C ambient, each Zener can sustain up to 22.7mA continuously (300mW ÷ 13.25V avg) before exceeding its thermal limit on a standard FR4 board. Derating applies above 25°C per the 417°C/W R_θJA curve - e.g., max current drops to ~15mA at 70°C ambient.

Can DZ23C13-7 be used in avalanche mode for ESD protection?

No - DZ23C13-7 is optimized for stable Zener breakdown at 13V, not fast transient suppression. Its 25Ω dynamic impedance and 300mW rating are unsuited for ESD pulse absorption; dedicated TVS diodes like PESD5V0S1BA are recommended instead.

Is the common cathode internally bonded or externally accessible?

Pin 2 is the externally accessible common cathode terminal, directly bonded to both die cathodes inside the SOT23 package. This allows independent anode connections (Pins 1 and 3) while maintaining a single reference node - verified in Diodes' DS18002 schematic and top-view diagram.

Does DZ23C13-7 meet AEC-Q200 requirements?

No - DZ23C13-7 is commercial-grade (no Q-suffix). For AEC-Q200 compliance, use the automotive-qualified DZ23C13Q-7-F variant, which undergoes PPAP, IATF 16949 manufacturing, and full AEC-Q200 stress testing per Diodes' automotive product page.