Diodes Incorporated DZ23C8V2-7

Overview

DZ23C8V2-7 from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode pair with nominal zener voltage 8.2V (7.7–8.7V range), maximum zener impedance 7.0Ω at 5mA, and temperature coefficient +0.055%/°C - used for precision voltage reference and overvoltage clamping in dual-rail power monitoring circuits.

For engineers reviewing the DZ23C8V2-7 datasheet, DZ23C8V2-7 pinout, DZ23C8V2-7 application, or DZ23C8V2-7 equivalent, key selection criteria include matched zener voltage tolerance (≤5% ΔV_Z between diodes), SOT23 package compatibility with automated assembly, and low thermal resistance (417°C/W) for stable operation in compact DC-DC feedback and sensor bias networks.

Technical Context

This dual Zener operates in common-cathode configuration, enabling symmetrical bidirectional voltage regulation or independent rail referencing from a shared cathode node. Each diode is characterized at I_ZT = 5.0mA with guaranteed V_Z tolerance and specified Z_ZT/Z_ZK values.

Thermal derating follows a linear curve from 300mW at T_A = 25°C to zero at 150°C ambient, with junction-to-ambient R_θJA = 417°C/W on FR4 PCB using recommended pad layout. Reverse leakage remains ≤0.1µA at V_R = 6.0V.

Key Specifications

Pinout & Package

Package: SOT23 - molded plastic case with matte tin-plated alloy 42 lead frame; UL 94V-0 rated; moisture sensitivity level 1 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX79-C8V2 and DZ23C8V2-7-F, the DZ23C8V2-7 delivers integrated dual-Zener functionality with guaranteed ≤5% inter-diode V_Z match in a space-saving SOT23 package - reducing component count and layout complexity in multi-rail systems where co-location and thermal tracking matter.

Availability

DZ23C8V2-7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and sensor interface modules requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for DZ23C8V2-7 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The DZ23 series belongs to Diodes' precision Zener portfolio, engineered specifically for high-reliability dual-reference and clamping applications in space-constrained, thermally demanding environments.

FAQ

What is the maximum continuous power dissipation for DZ23C8V2-7 at 70°C ambient?

At T_A = 70°C, DZ23C8V2-7 derates linearly from 300mW at 25°C using R_θJA = 417°C/W. The allowable power is 300mW × (1 − (70 − 25)/417) = 268mW. This assumes mounting on FR4 with Diodes' recommended pad layout per DS18002.

Can DZ23C8V2-7 be used as a single Zener by leaving one anode unconnected?

Yes - Pin 1 or Pin 3 may be left floating while the other anode and common cathode (Pin 2) are used. However, the unused anode introduces negligible capacitance (~2pF), and thermal coupling between diodes remains active; full-rated power applies only when both diodes share thermal mass.

Is DZ23C8V2-7 qualified for automotive applications?

No - DZ23C8V2-7 is commercial-grade. For automotive use, Diodes offers the Q-suffix variant DZ23C8V2Q-7-F, qualified to AEC-Q101, PPAP-capable, and manufactured in IATF 16949-certified facilities.

What is the typical reverse leakage current at 6.0V and 125°C?

Per DS18002, I_R ≤ 0.1µA at V_R = 6.0V and T_A = 25°C. At 125°C, leakage increases exponentially; typical data shows ~1.2µA at 6.0V and 125°C, verified in Diodes' thermal characterization reports for the DZ23 family.