Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Diodes Incorporated DZ23C27-7-F

Name: DZ23C27-7-F
Brand: Diodes Incorporated
SKU: DZ23C27-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: DZ23C27-7-F

Manufacturer:: Diodes Incorporated

Category:: Zener Diode Arrays

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

Datasheet:: DZ23C27-7-F.pdf

Description:: DIODE ZENER ARRAY 27V SOT23-3

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,495

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

DZ23C27-7-F from Diodes Incorporated is a dual common-cathode 27 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with ±5% matching between zener voltages and 80 Ω typical zener impedance at 5 mA. It provides precision voltage reference and overvoltage clamping in space-constrained dual-rail regulator feedback paths.

For engineers reviewing the DZ23C27-7-F datasheet, DZ23C27-7-F pinout, DZ23C27-7-F application, or DZ23C27-7-F equivalent, key selection criteria include matched dual-zener tolerance, thermal resistance (417 °C/W), JEDEC-qualified reliability, SOT23 footprint compatibility, and automotive-grade availability via Q-suffix variants.

Technical Context

This dual zener operates in reverse breakdown mode with two anodes sharing one cathode terminal, enabling independent regulation of two voltage rails from a single compact device. Its matched voltage tolerance (≤5% ΔV_Z) supports tightly coupled reference generation in differential sensing or dual-supply monitoring circuits.

The device exhibits a +0.090 %/°C temperature coefficient and maintains stable regulation across –65 °C to +150 °C operating range. Its 25.1–28.9 V nominal zener voltage range is specified at 5 mA test current, with minimum reverse voltage of 20.0 V at 0.1 µA leakage.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage Range	25.1 V to 28.9 V at I_ZT = 5 mA - defines usable regulation band under standard test conditions
Max Zener Impedance	80 Ω at I_ZT = 5 mA - indicates low dynamic resistance for stable reference output
Power Dissipation	300 mW - sets maximum continuous thermal load on FR4 PCB with recommended pad layout
Thermal Resistance	417 °C/W junction-to-ambient - determines temperature rise per milliwatt under natural convection
Temp Coefficient	+0.090 %/°C - quantifies voltage drift magnitude per degree Celsius change
Min Reverse Voltage	20.0 V at I_R = 0.1 µA - specifies lowest voltage before measurable leakage begins
Operating Temp	–65 °C to +150 °C - confirms suitability for extended industrial and automotive environments

Pinout & Package

Package: SOT23 - surface-mount plastic case with matte tin-plated alloy 42 lead frame, UL 94V-0 rated, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode 1 (Pin 1)	First Zener Anode	Connects to first regulated rail; reverse-biased to achieve 27 V breakdown
Cathode (Pin 2)	Common Cathode	Shared return node for both zeners; ties to system ground or reference plane
Anode 2 (Pin 3)	Second Zener Anode	Connects to second regulated rail; independently biased for matched 27 V reference

Key Features

Feature	Design Value
Dual common-cathode configuration	Enables two independent 27 V references from one SOT23 footprint, reducing board area by ~40% vs discrete pair
≤5% ΔV_Z matching	Ensures <±1.4 V absolute difference between zener voltages - critical for differential error amplifiers
JEDEC-qualified reliability	Meets high-reliability standards referenced in AEC-Q series - validated for long-term stability in harsh environments
Lead-free & halogen-free	Complies with RoHS 2/3 and "Green" definitions (<900 ppm Br/Cl, <1000 ppm Sb) - supports eco-compliant manufacturing
SOT23 tape-and-reel packaging	3000 units per reel - optimized for automated pick-and-place assembly without manual handling

Applications

Industrial Power Supply Feedback

Automotive ECU Reference Generation

Use Scenario: Dual-output isolated DC-DC converter requiring matched voltage references for primary and secondary side regulation.

IC Role / Device Role / Timing Role: Dual zener provides stable 27 V references for optocoupler feedback and secondary-side error amplifier biasing.

Use Value: Matching ≤5% eliminates need for individual trimming resistors, reducing BOM count and calibration steps.

Use Scenario: Engine control unit needing redundant 27 V references for analog sensor signal conditioning and ADC reference scaling.

IC Role / Device Role / Timing Role: Supplies matched reference voltages to two independent analog front-end channels under wide temperature variation.

Use Value: +0.090 %/°C tempco and –65 °C to +150 °C rating ensure <±2.5% reference drift across full automotive ambient range.

Test Equipment Voltage Calibration

Medical Sensor Biasing

Use Scenario: Portable multimeter requiring traceable dual-voltage reference points for auto-ranging circuitry.

IC Role / Device Role / Timing Role: Generates precise 27 V thresholds for range-switching comparators and internal DAC calibration.

Use Value: 80 Ω zener impedance ensures minimal loading error when driving comparator inputs directly.

Use Scenario: Patient-monitoring device using dual 27 V rails to bias high-impedance biopotential amplifiers.

IC Role / Device Role / Timing Role: Provides low-noise, matched supply rails for instrumentation amplifier stages in EEG/ECG front ends.

Use Value: Common-cathode topology minimizes ground loop interference between signal paths, improving CMRR >100 dB.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX79-C27 (Nexperia)	Single 27 V zener in DO-35; no dual configuration or voltage matching	Requires two separate devices and external matching; larger footprint	Select only if dual-anode topology is unnecessary and board space is not constrained
DZ23C24-7-F (Diodes Inc.)	24 V nominal zener pair; same package, pinout, and matching spec (≤5% ΔV_Z)	Lower voltage reference; unsuitable where 27 V threshold is required for overvoltage protection	Choose when system design mandates 24 V instead of 27 V - drop-in replacement with identical thermal and layout behavior

Compared with BZX79-C27 and DZ23C24-7-F, DZ23C27-7-F uniquely delivers matched 27 V regulation in a single SOT23, eliminating component count and inter-device drift - essential for compact, high-accuracy dual-rail systems.

Availability

DZ23C27-7-F is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECUs, portable test equipment, and medical sensor modules requiring stable component supply with JEDEC-qualified reliability and RoHS compliance.

Supply support for DZ23C27-7-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, specializing in high-reliability components for industrial, automotive, and computing markets.

The DZ23 series targets space-efficient voltage reference and protection applications, with dual-zener architecture designed specifically for matched regulation in feedback networks and redundancy-critical systems.

FAQ

What is the maximum power dissipation for DZ23C27-7-F?

The device is rated for 300 mW total power dissipation when mounted on an FR4 PCB with Diodes Incorporated's recommended pad layout. Derating is required above +25 °C ambient, following the linear curve in Figure 1: power drops to zero at +150 °C ambient due to its 417 °C/W thermal resistance.

How is voltage matching specified between the two zeners?

Voltage matching is defined as ΔV_Z ≤ 5% - meaning the absolute difference between the two measured zener voltages at I_ZT = 5 mA does not exceed 5% of the nominal value (27 V). This is guaranteed per unit during production testing, not statistical binning.

Can DZ23C27-7-F be used in automotive applications?

Yes - the commercial-grade DZ23C27-7-F meets JEDEC high-reliability standards, and Diodes offers qualified automotive variants (e.g., DZ23C27Q-7-F) with AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing certification for safety-critical vehicle systems.

What is the reverse leakage current at 20 V?

At 20.0 V reverse bias and TA = +25 °C, the maximum reverse leakage current is 0.1 µA - this is the minimum reverse voltage at which leakage is guaranteed not to exceed that value, per Note 6 in the Electrical Characteristics table.

DZ23C27-7-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):: 27 V

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 80 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

DZ23C27-7-F FAQ

1.How can I place an order for DZ23C27-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for DZ23C27-7-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 DZ23C27-7-F reliable?

The price and inventory of DZ23C27-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ23C27-7-F is usually 5 days.

3.What payment methods are accepted for DZ23C27-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ23C27-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DZ23C27-7-F?

DZ23C27-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DZ23C27-7-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 DZ23C27-7-F?

For technical support, including DZ23C27-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ23C27-7-F requirements.

6.How does Aetrix verify that DZ23C27-7-F is sourced from the original manufacturer or authorized distributors?

All DZ23C27-7-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 DZ23C27-7-F meets industry standards.

7.What is the process for return or replacement of DZ23C27-7-F?

All DZ23C27-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DZ23C27-7-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 DZ23C27-7-F part is unused and in its original packaging.

Return procedure for DZ23C27-7-F:

1.Submit a request within 90 days.

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

Tech Hub

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…