Diodes Incorporated DZ23C15-7

Overview

DZ23C15-7 from Diodes Incorporated is a dual common-cathode 15V Zener diode pair in SOT23 package, rated for 300mW total power dissipation, with ±5% matching between the two Zener voltages (13.8V–15.6V), and 30Ω maximum Zener impedance at 5mA test current - used for precision voltage reference and dual-rail regulation in compact power management circuits.

For engineers reviewing the DZ23C15-7 datasheet, DZ23C15-7 pinout, DZ23C15-7 application, or DZ23C15-7 equivalent, this dual Zener supports matched voltage clamping in low-power analog monitoring, rail-to-rail reference generation, and overvoltage protection where tight V_Z tracking and space-constrained SMT layout are critical.

Technical Context

This device integrates two independent Zener diodes sharing a common cathode terminal, enabling simultaneous regulation of two voltage rails from a single footprint. Its thermal resistance (R_θJA = 417°C/W) and operating range (−65°C to +150°C) support stable operation in industrial ambient conditions without forced cooling.

The matched Zener voltage tolerance (≤5% ΔV_Z) and positive temperature coefficient (+0.080%/°C) ensure predictable drift behavior across temperature, while the 11.0V minimum reverse voltage guarantees reliable breakdown onset under low-current biasing.

Key Specifications

Pinout & Package

Package: SOT23 - plastic-molded, green RoHS-compliant case with matte tin-plated terminals; weight ≈ 0.008g; 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 BZX84-C15LT1G, DZ23C15-7 delivers integrated dual-channel regulation with guaranteed matching, reducing BOM count and layout complexity; versus DZ23C15-7-F, it shares identical performance but differs only in packaging designation - not a functional alternative.

Availability

DZ23C15-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, low-power microcontroller reference design, redundant power monitoring, and compact overvoltage clamp circuits requiring stable component supply and JEDEC-qualified reliability.

Supply support for DZ23C15-7 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 components for industrial, computing, and consumer markets.

DZ23C15-7 belongs to the DZ23C series of dual common-cathode Zener diodes, designed specifically for space-constrained applications needing matched voltage references and robust SMT manufacturability.

FAQ

What is the maximum continuous current each Zener can handle in DZ23C15-7?

At 25°C ambient and with recommended FR4 pad layout, each Zener supports up to 5mA continuous current before exceeding the 300mW total power limit - assuming equal current split. Derating is required above 25°C per the 417°C/W R_θJA curve.

Can DZ23C15-7 be used in automotive applications?

Yes - the automotive-grade variant is DZ23C15Q-7-F, qualified to AEC-Q101, manufactured in IATF 16949 facilities, and PPAP-capable. The standard DZ23C15-7 is not automotive-qualified and lacks change control documentation.

How is polarity identified on the DZ23C15-7 SOT23 package?

Polarity is marked by a molded cathode band near Pin 2 (common cathode). Pin 1 is Anode 1, Pin 2 is Cathode (shared), and Pin 3 is Anode 2 - confirmed in the top-view schematic on page 2 of DS18002 Rev. 22-2.

Does DZ23C15-7 meet halogen-free and antimony-free requirements?

Yes - it is certified "Green" per Diodes' definition: <900ppm bromine, <900ppm chlorine (<1500ppm total Br+Cl), and <1000ppm antimony compounds, with fully RoHS-compliant lead-free plating and molding compound.