Diodes Incorporated DZ23C3V0-7

Overview

DZ23C3V0-7 from Diodes Incorporated is a dual common-cathode 3.0 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with ±5% matching between zener voltages and 95 Ω typical zener impedance at 5 mA. It serves as a precision voltage reference and overvoltage clamp in low-power analog monitoring circuits, such as battery voltage supervisors and sensor biasing networks.

For engineers reviewing the DZ23C3V0-7 datasheet, DZ23C3V0-7 pinout, DZ23C3V0-7 application, or DZ23C3V0-7 equivalent, this part supports dual-rail voltage regulation, matched thermal tracking in differential references, and compact space-constrained PCB layouts requiring two tightly matched 3.0 V zeners in one footprint.

Technical Context

This dual zener operates with both anodes electrically isolated and cathodes internally joined, enabling independent forward-biased operation or simultaneous reverse breakdown at matched nominal voltage (2.8–3.2 V). Its thermal resistance of 417 °C/W and operating range of –65 to +150 °C support stable performance across industrial ambient conditions.

The device exhibits a negative temperature coefficient of –0.060 %/°C and maintains ≤5% inter-diode V_Z variation under identical test conditions, making it suitable for ratiometric sensing and differential reference generation where drift cancellation is critical.

Key Specifications

Pinout & Package

Package: SOT23 - plastic-molded, lead-free, halogen-free case with matte tin-plated terminals; weight ≈ 0.008 g; 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-C3V0 and DZ23C3V3-7, DZ23C3V0-7 uniquely delivers matched dual 3.0 V references in one SOT23 footprint-enabling space-efficient differential sensing, redundancy, and thermal tracking unattainable with single-device alternatives.

Availability

DZ23C3V0-7 is available at Aetrix Electronics and suitable for battery management systems, sensor interface modules, dual-rail power monitors, and redundant reference generators requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for DZ23C3V0-7 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, industry-qualified components for automotive, industrial, and computing markets.

DZ23C3V0-7 belongs to the DZ23C series of dual Zener diodes designed specifically for space-constrained applications needing matched voltage references, such as portable instrumentation and safety-critical monitoring systems.

FAQ

What is the maximum reverse current guaranteed before breakdown for DZ23C3V0-7?

The datasheet specifies minimum reverse voltage (V_R) as "-" for DZ23C3V0-7, indicating no guaranteed knee voltage specification below 2.8 V. At I_R = 0.1 µA, V_R is not characterized - design must rely on the 2.8–3.2 V breakdown window at I_ZT = 5 mA for functional operation.

Can DZ23C3V0-7 be used with forward-biased anodes for ESD protection?

No - the device is optimized for reverse-bias zener operation. Forward voltage is not characterized in the datasheet, and its 300 mW rating applies only to reverse breakdown. For bidirectional ESD protection, dedicated TVS arrays like the D3V3F4U are recommended instead.

Is thermal derating required when both zeners operate simultaneously?

Yes - the 300 mW rating is total for the package. Simultaneous conduction requires summing power in both elements. At 5 mA each and 3.0 V, combined dissipation is 30 mW, well within limit; however, at 20 mA each, 120 mW is reached, necessitating ambient derating per Figure 1's 417 °C/W curve above 70 °C.

Does the common cathode connection support AC-coupled signal clamping?

Yes - the common cathode allows both anodes to be driven independently, enabling AC signal limiting with symmetric positive/negative swing control when cathode is biased at mid-supply. This configuration is validated in Diodes' application note AN-2001 for rail-to-rail clamping topologies.