Diodes Incorporated DZ23C12-7-F

Overview

DZ23C12-7-F from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode with nominal zener voltage 12V (11.4–12.7V range), ±5% matching between diodes, and temperature coefficient +0.075%/°C - used for precision voltage reference and overvoltage protection in dual-rail power monitoring circuits.

For engineers reviewing the DZ23C12-7-F datasheet, DZ23C12-7-F pinout, DZ23C12-7-F application, or DZ23C12-7-F equivalent, key selection criteria include matched zener voltage tolerance, low thermal resistance (417°C/W), SOT23 package compatibility, and JEDEC-qualified reliability for industrial power management designs.

Technical Context

This dual Zener operates in common-cathode configuration: Pin 1 and Pin 2 are anodes, Pin 3 is shared cathode. Each diode is rated for 5mA test current (IZT) and exhibits 20Ω typical zener impedance (ZZT) at IZT and 90Ω maximum at IZK = 1.0mA.

It delivers stable regulation across –65°C to +150°C ambient, with power derating linear above 50°C per Figure 1, and supports automated SMT assembly due to SOT23 footprint and matte tin lead finish compliant with MIL-STD-202 solderability.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic case with matte tin-plated Alloy 42 leads, 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 voltage reference applications.

Compared with BZX79-C12,113 and MMBZ5242B, DZ23C12-7-F uniquely integrates matched dual Zeners in one SOT23, eliminating layout asymmetry, reducing BOM count by 50%, and guaranteeing ≤5% ΔVZ - critical for production consistency in dual-supply monitoring.

Availability

DZ23C12-7-F is available at Aetrix Electronics and suitable for industrial power supervision, automotive body control modules, and IoT sensor node protection requiring stable component supply, JEDEC-qualified reliability, and RoHS-compliant sourcing.

Supply support for DZ23C12-7-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 distribution operations across Asia and the Americas.

DZ23C12-7-F belongs to the DZ23C series of dual common-cathode Zener diodes, engineered specifically for space-constrained, high-reliability voltage reference and rail-protection applications in industrial and automotive systems.

FAQ

What is the maximum continuous power dissipation for DZ23C12-7-F on a standard FR4 PCB?

DZ23C12-7-F is rated for 300mW continuous power dissipation when mounted on FR4 with Diodes Incorporated's recommended pad layout (documented in DS18002, page 6). Derating begins linearly above 50°C ambient, reaching zero at 150°C per Figure 1.

How is the 5% ΔVZ matching between diodes verified and guaranteed?

The ≤5% voltage difference (ΔVZ) between the two Zeners in one DZ23C12-7-F unit is measured and binned during final test at 5mA IZT per DS18002 Rev. 22–2, page 3. This matching is guaranteed per unit, not typical, and applies across the full operating temperature range.

Can DZ23C12-7-F be used in automotive applications?

Yes - the commercial-grade DZ23C12-7-F meets JEDEC high-reliability standards. For AEC-Q200 qualified automotive use, Diodes offers the Q-suffix variant DZ23C12Q-7-F, manufactured in IATF 16949 certified facilities and PPAP-capable.

What is the reverse leakage current specification at 9.0V?

Per DS18002 page 3, the minimum reverse voltage (VR) is specified as 9.0V at IR = 0.1µA for DZ23C12. This means reverse leakage remains ≤0.1µA up to 9.0V, ensuring negligible current draw in high-impedance bias networks below that threshold.