Diodes Incorporated DZ23C12Q-7-F

Overview

DZ23C12Q-7-F from Diodes Incorporated is a dual common-cathode 12 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with ±5% matching between zener voltages (11.4–12.7 V at 5 mA), 20 Ω typical zener impedance, and +0.075 %/°C temperature coefficient - used for precision voltage reference and overvoltage clamping in dual-rail power monitoring circuits.

For engineers reviewing the DZ23C12Q-7-F datasheet, DZ23C12Q-7-F pinout, DZ23C12Q-7-F application, or DZ23C12Q-7-F equivalent, key selection criteria include matched dual-zener tolerance, thermal stability in compact SOT23 layout, low leakage (<0.1 µA at 9.0 V), and JEDEC-qualified reliability for industrial power management designs.

Technical Context

This dual zener operates in common-cathode configuration: both anodes are independent terminals, sharing one cathode connection. It delivers stable 12 V regulation under 5 mA test current with ≤20 Ω dynamic impedance and <90 Ω knee impedance at 1 mA, enabling tight voltage referencing in space-constrained feedback networks.

Thermal resistance is 417 °C/W (junction-to-ambient, FR4 board), requiring derating above 25 °C ambient per Figure 1. The device supports operation from –65 °C to +150 °C and meets JEDEC high-reliability standards without automotive qualification (Q-suffix absent).

Key Specifications

Pinout & Package

Package: SOT23 - molded plastic case, UL 94V-0 rated, 0.008 g weight, matte tin-plated terminals on Alloy 42 lead frame.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX79-C12,113 and DZ23C12-7-F, DZ23C12Q-7-F uniquely integrates matched dual 12 V zeners in one SOT23 footprint with documented JEDEC reliability - delivering space savings, thermal coupling, and simplified layout where dual-rail referencing is essential.

Availability

DZ23C12Q-7-F is available at Aetrix Electronics and suitable for industrial power monitoring, dual-rail reference generation, voltage clamp protection, and comparator hysteresis setting requiring stable component supply and JEDEC-qualified performance.

Supply support for DZ23C12Q-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 industrial, computing, and consumer markets.

DZ23C12Q-7-F belongs to the DZ23C dual-zener series designed specifically for compact, matched-voltage referencing in space-constrained power management and protection circuits.

FAQ

What is the meaning of the 'Q' suffix in DZ23C12Q-7-F?

The 'Q' suffix indicates automotive-grade qualification per AEC-Q200 stress testing requirements, including extended temperature operation, humidity resistance, and mechanical shock endurance. Unlike the commercial DZ23C12-7-F, this part is manufactured in IATF 16949-certified facilities and supports PPAP documentation for automotive OEM programs.

Can DZ23C12Q-7-F be used in place of a single 12 V zener diode?

Yes - Pin 1 and Pin 2 form one functional 12 V zener; Pin 3 and Pin 2 form the second. Either anode can be used independently with the shared cathode (Pin 2) as the reference node, provided the total power dissipation remains ≤300 mW across both devices simultaneously.

What is the maximum reverse current at 9.0 V for DZ23C12Q-7-F?

The datasheet specifies minimum reverse voltage (V_R) of 9.0 V at I_R = 0.1 µA - meaning leakage current does not exceed 0.1 µA when reverse-biased up to 9.0 V. This value is guaranteed across the full operating temperature range (–65 °C to +150 °C).

Is thermal derating required for continuous operation at 85 °C ambient?

Yes - with R_θJA = 417 °C/W, junction temperature rise at full 300 mW is ~125 °C above ambient. At 85 °C ambient, T_J would reach 210 °C - exceeding the 150 °C max rating. Derating to ≤150 mW is required at 85 °C ambient, per the power derating curve in Figure 1.