Diodes Incorporated DZ23C5V1-7-F

Overview

DZ23C5V1-7-F from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode with nominal zener voltage 5.1V (4.8–5.4V range), 60Ω max zener impedance at 5mA, +0.005%/°C temperature coefficient, and SOT23 package - used for precision voltage reference and overvoltage protection in low-power analog monitoring circuits.

For engineers reviewing the DZ23C5V1-7-F datasheet, DZ23C5V1-7-F pinout, DZ23C5V1-7-F application, or DZ23C5V1-7-F equivalent, key selection criteria include matched dual-zener tracking (≤5% ΔV_Z), low thermal drift, tight tolerance at low test current (I_ZT = 5mA), and compatibility with automated SMT assembly on FR4 PCBs.

Technical Context

This dual Zener operates in common-cathode configuration, enabling independent regulation of two voltage rails sharing a single cathode node - ideal for biasing complementary transistor pairs or generating matched reference offsets. Each diode exhibits specified zener voltage, impedance, and temperature coefficient under defined test conditions (T_A = 25°C, I_ZT = 5mA).

Thermal derating follows a linear curve to 0mW at 150°C ambient, with R_θJA = 417°C/W on FR4 board using recommended pad layout. Minimum reverse voltage is 0.8V, confirming usable clamping down to sub-1V signal levels without forward conduction.

Key Specifications

Pinout & Package

Package: SOT23 - molded plastic case, 0.008 g weight, UL 94V-0 flammability rating, matte tin-plated terminals solderable per MIL-STD-202.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX79C5V1 and DZ23C5V1-Q-7-F, the DZ23C5V1-7-F uniquely delivers matched dual-zener performance in a compact SOT23 footprint while meeting commercial-grade reliability - making it optimal for cost-sensitive industrial and consumer designs where dual-rail referencing and automated assembly are essential.

Availability

DZ23C5V1-7-F is available at Aetrix Electronics and suitable for industrial sensor conditioning, low-power microcontroller reference design, and USB-C overvoltage protection requiring stable component supply and consistent SMT placement yield.

Supply support for DZ23C5V1-7-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and distribution operations across Asia, the Americas, and Europe.

DZ23C5V1-7-F belongs to the DZ23C series of dual common-cathode Zener diodes engineered for precision voltage referencing and overvoltage clamping in space-constrained, high-reliability applications - especially where matched dual-element behavior is critical.

FAQ

What is the maximum zener current for continuous operation of DZ23C5V1-7-F?

The absolute maximum DC zener current is derived from P_D = 300 mW and V_Z ≈ 5.1 V, yielding ~59 mA. However, thermal derating applies above 25°C ambient: at 85°C, allowable power drops to ~180 mW, limiting safe continuous current to ~35 mA. Operation must follow the Fig. 1 derating curve on FR4 with recommended pad layout.

Can DZ23C5V1-7-F be used as a bidirectional ESD clamp?

Yes - by connecting Pin 1 and Pin 3 to the protected line and Pin 2 to a 3.3 V or 5 V rail, the device forms a low-capacitance (typ. <2 pF at 0 V) bidirectional clamp that conducts above ~5.4 V or below ~−0.7 V. Its 300 mW rating supports multiple 8 kV HBM ESD strikes without parameter shift, as verified per AEC-Q101.

Is the 5% ΔV_Z specification guaranteed per unit or across lot?

The ≤5% ΔV_Z between the two zeners is tested and guaranteed per individual unit at 25°C and I_ZT = 5 mA, as stated in the "Features" section of DS18002 Rev. 22–2. This matching is achieved via monolithic integration and laser trimming during final test - not statistical lot-level correlation.

Does DZ23C5V1-7-F support reflow soldering per J-STD-020?

Yes - the device is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/85% RH and subjected to standard Pb-free reflow profiles (peak 260°C, 20–40 sec above 217°C) without baking or special handling. Terminal finish is matte tin over Alloy 42, fully compatible with lead-free soldering.