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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Zener Diode Arrays

Diodes Incorporated DZ23C4V3-7-F

Name: DZ23C4V3-7-F
Brand: Diodes Incorporated
SKU: DZ23C4V3-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DZ23C4V3-7-F

Manufacturer:: Diodes Incorporated

Category:: Zener Diode Arrays

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: DZ23C4V3-7-F.pdf

Description:: DIODE ZENER ARRAY 4.3V SOT23-3

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Inventory:5,966

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Product details

Overview

DZ23C4V3-7-F from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode pair with nominal zener voltage 4.3V (4.0–4.6V range), maximum zener impedance 95Ω at 5mA, temperature coefficient –0.035%/°C, and SOT23 package. It provides precision voltage reference and overvoltage clamping in space-constrained power management and signal conditioning circuits.

For engineers reviewing the DZ23C4V3-7-F datasheet, DZ23C4V3-7-F pinout, DZ23C4V3-7-F application, or DZ23C4V3-7-F equivalent, this part supports dual-voltage referencing, matched-pair tolerance ≤5% ΔV_Z, JEDEC-qualified reliability, RoHS-compliant lead-free construction, and automated SMT assembly on FR4 PCBs.

Technical Context

This dual Zener operates in common-cathode configuration: Pins 1 and 3 are anodes, Pin 2 is shared cathode. Each diode is rated for 300mW total power dissipation with thermal resistance R_θJA = 417°C/W on standard FR4 layout.

It delivers stable breakdown at 4.3V ±0.3V under I_ZT = 5mA, with low dynamic impedance (95Ω) and minimal voltage drift (–0.035%/°C), enabling accurate voltage regulation in low-power analog rails and protection circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage Range	4.0 V to 4.6 V at I_ZT = 5 mA - defines usable regulation window for 3.3V/5V system biasing
Max Zener Impedance	95 Ω at I_ZT = 5 mA - ensures <1% output deviation under load transients up to ±1 mA
Temp Coefficient	–0.035 %/°C - enables <±20 mV drift across –40°C to +85°C ambient
Power Dissipation	300 mW - supports continuous operation at 5 mA without derating below +70°C ambient
Thermal Resistance	417 °C/W - requires minimum 25 mm² copper pour for full-rated power on FR4
Reverse Leakage	<0.1 µA at V_R = 1.0 V - negligible current draw in standby mode for battery-powered sensors

Pinout & Package

Package: SOT23 - molded plastic case, 0.008 g weight, UL 94V-0 flammability rating, matte tin-plated terminals, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1	Anode of Zener 1	Connects to input rail needing clamping or reference; reverse-biased during regulation
Pin 2	Common Cathode	Shared output node; ties both Zeners to regulated voltage point or ground-referenced return path
Pin 3	Anode of Zener 2	Independent anode for second regulated path; enables dual-rail referencing from single device

Key Features

Feature	Design Value
Dual Zeners, Common Cathode	Reduces board area by 40% vs. two discrete SOT23 Zeners; simplifies routing for dual-supply monitoring
Matched ΔV_Z ≤ 5%	Enables precise differential sensing or balanced clamp thresholds without external trimming
JEDEC High Reliability Qualification	Validated per AEC-Q stress protocols - suitable for industrial control and telecom infrastructure
Lead-Free & Halogen-Free	Complies with RoHS 3 (2015/863/EU) and "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb)

Applications

USB Power Rail Protection

Industrial Sensor Biasing

Use Scenario: Clamping 5V USB VBUS against ESD spikes and overvoltage events in portable docking stations.

IC Role / Device Role / Timing Role: Dual-anode Zener clamps both VBUS and auxiliary 3.3V logic rail simultaneously using shared cathode return.

Use Value: Eliminates need for two separate TVS diodes; maintains <±0.15V regulation accuracy under 2A 8/20µs surge.

Use Scenario: Providing stable 4.3V reference for 12-bit ADC front-end in factory-floor temperature transmitters.

IC Role / Device Role / Timing Role: Zener pair supplies clean bias to op-amp gain stage and ADC reference buffer with matched TC.

Use Value: Achieves <0.05% full-scale error over –25°C to +75°C due to <5% inter-diode V_Z matching.

Low-Power IoT Node Regulation

Automotive Cabin Controller Reference

Use Scenario: Generating local 4.3V supply for BLE SoC and sensor interface in coin-cell–powered asset trackers.

IC Role / Device Role / Timing Role: Functions as shunt regulator in series with high-value resistor; dual structure allows backup reference path.

Use Value: Draws only 0.1 µA leakage at 3.0V - extends 220mAh coin cell life to >5 years in sleep mode.

Use Scenario: Supplying reference voltage to LIN bus transceiver and microcontroller reset monitor in automotive HVAC modules.

IC Role / Device Role / Timing Role: Dual Zener provides redundant 4.3V reference; one diode feeds reset IC, the other feeds LIN driver bias.

Use Value: Meets AEC-Q200 stress requirements when paired with Q-grade variants; supports PPAP documentation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C4V3-7-F	Single Zener, same 4.3V rating and SOT23 package, but no dual configuration or matched ΔV_Z	Requires two devices for dual-rail use; lacks inherent tracking between references	Select when only one regulated rail is needed and board area is not constrained
DZ23C4V7-7-F	Higher nominal Zener voltage (4.7V), identical dual-common-cathode topology and package	Better suited for 5V system margining where 4.7V clamping threshold improves noise immunity	Choose when design requires tighter headroom above 4.3V or higher thermal stability (TC = –0.015%/°C)

Compared with BZX84-C4V3-7-F and DZ23C4V7-7-F, DZ23C4V3-7-F uniquely delivers matched dual 4.3V references in one SOT23 footprint-enabling compact dual-rail protection or biasing without performance trade-offs in tracking or thermal drift.

Availability

DZ23C4V3-7-F is available at Aetrix Electronics and suitable for USB power protection, industrial sensor biasing, low-power IoT regulation, and automotive cabin controller reference requiring stable component supply and JEDEC-qualified reliability.

Supply support for DZ23C4V3-7-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 centers and manufacturing facilities across Asia and the Americas.

This device belongs to the DZ23C series of dual common-cathode Zener diodes, engineered for high-precision voltage referencing and overvoltage protection in space-constrained, high-reliability applications including industrial automation and communications infrastructure.

FAQ

What is the maximum continuous power dissipation for DZ23C4V3-7-F?

The device is rated for 300 mW total power dissipation at T_A = 25°C on a standard FR4 PCB with recommended pad layout. Derating begins linearly above 25°C at 0.72 mW/°C, reaching zero dissipation at approximately 125°C ambient, per the published power derating curve.

Can DZ23C4V3-7-F be used in automotive applications?

The commercial-grade DZ23C4V3-7-F is not AEC-Q200 qualified. For automotive use, Diodes offers the Q-suffix variant DZ23C4V3Q-7-F, manufactured in IATF 16949-certified facilities and qualified to AEC-Q200 standards with full PPAP support.

How is the common cathode configured electrically in DZ23C4V3-7-F?

Pin 2 is the common cathode terminal; Pins 1 and 3 serve as independent anodes. When reverse-biased, each anode-to-cathode path conducts independently, allowing simultaneous regulation of two nodes referenced to the same cathode potential - ideal for dual-supply monitoring or differential clamp designs.

What is the typical zener impedance at low test current (IZK = 1.0 mA)?

At I_ZK = 1.0 mA, the typical zener impedance is 500 Ω - significantly higher than the 95 Ω measured at I_ZT = 5 mA. This reflects increased dynamic resistance near knee voltage and informs minimum operating current selection for stable regulation.

DZ23C4V3-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Configuration:: 1 Pair Common Cathode

Voltage - Zener (Nom) (Vz):: 4.3 V

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 95 Ohms

Current - Reverse Leakage @ Vr:: -

Voltage - Forward (Vf) (Max) @ If:: -

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

DZ23C4V3-7-F FAQ

1.How can I place an order for DZ23C4V3-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for DZ23C4V3-7-F on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for DZ23C4V3-7-F reliable?

The price and inventory of DZ23C4V3-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ23C4V3-7-F is usually 5 days.

3.What payment methods are accepted for DZ23C4V3-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ23C4V3-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DZ23C4V3-7-F?

DZ23C4V3-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DZ23C4V3-7-F order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for DZ23C4V3-7-F?

For technical support, including DZ23C4V3-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ23C4V3-7-F requirements.

6.How does Aetrix verify that DZ23C4V3-7-F is sourced from the original manufacturer or authorized distributors?

All DZ23C4V3-7-F products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DZ23C4V3-7-F meets industry standards.

7.What is the process for return or replacement of DZ23C4V3-7-F?

All DZ23C4V3-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DZ23C4V3-7-F, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The DZ23C4V3-7-F part is unused and in its original packaging.

Return procedure for DZ23C4V3-7-F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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