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Diodes Incorporated DZ23C24-7
- Part No.:
- DZ23C24-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DZ23C24-7.pdf
- Description:
- DIODE ZENER ARRAY 24V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,739
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Product details
Overview
DZ23C24-7 from Diodes Incorporated is a dual common-cathode 24 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with ±5% matching between zener voltages and 80 Ω maximum zener impedance at 5 mA test current. It provides precision voltage reference and overvoltage clamping in space-constrained DC bias and protection circuits.
For engineers reviewing the DZ23C24-7 datasheet, DZ23C24-7 pinout, DZ23C24-7 application, or DZ23C24-7 equivalent, this device supports dual-voltage regulation, matched reference generation, and compact bidirectional transient suppression in industrial sensor interfaces and low-power analog front-ends.
Technical Context
This dual Zener operates in common-cathode configuration: Pins 1 and 3 are anodes, Pin 2 is shared cathode. Each diode exhibits a nominal zener voltage of 24 V (22.8–25.6 V range), with +0.09 %/°C temperature coefficient and 18.0 V minimum reverse voltage at 0.1 µA leakage.
Thermal resistance is 417 °C/W (junction-to-ambient, FR4 board), and it supports operation from –65 °C to +150 °C. The device is fully RoHS-compliant, halogen- and antimony-free, and qualified to JEDEC reliability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.8–25.6 V @ IZT = 5 mA - defines stable regulation window for dual-channel reference |
| Power Dissipation (PD) | 300 mW - limits total combined dissipation across both diodes in SOT23 footprint |
| Zener Impedance (ZZT) | 80 Ω max @ 5 mA - ensures low dynamic impedance for stable voltage under load variation |
| Temperature Coefficient | +0.09 %/°C - quantifies positive drift per degree, critical for temp-stable bias networks |
| Reverse Leakage (IR) | 0.1 µA @ 18.0 V - confirms sharp knee and low standby current below breakdown |
| Package | SOT23 - surface-mount, 3-pin, 2.9 mm × 2.4 mm footprint enabling high-density PCB layout |
Pinout & Package
SOT23 package: molded green plastic case, UL 94V-0 rated, 0.008 g weight, matte tin-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Zener 1 | Connects to input node requiring clamping or reference; shares cathode (Pin 2) with second Zener |
| Pin 2 | Common Cathode | Shared return path for both Zeners; must be tied to system ground or bias rail for dual regulation |
| Pin 3 | Anode of Zener 2 | Enables independent connection to second circuit node-supports differential or complementary reference schemes |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zener, common cathode | Enables two independent 24 V references or bidirectional clamping from single footprint |
| Zener voltage matching | ≤5% ΔVZ between diodes - supports matched biasing in differential amplifiers or ADC references |
| JEDEC-qualified reliability | Validated for high-reliability applications per AEC-Q stress protocols - suitable for industrial control modules |
| Green, lead-free construction | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - meets global environmental compliance mandates |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Analog Front-End Protection |
|---|---|
Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure sensors operating in factory automation environments. IC Role / Device Role / Timing Role: Dual Zener provides matched 24 V reference for sensor bridge bias and clamps transients on signal lines. Use Value: 5% inter-Zener matching ensures consistent sensor gain calibration; 300 mW rating handles surge energy without derating at 85 °C ambient. | Use Scenario: Protecting ADC inputs and op-amp rails in battery-powered IoT node data acquisition circuits. IC Role / Device Role / Timing Role: Acts as bidirectional clamp (Pin 1→Pin 2 and Pin 3→Pin 2) to limit ESD and inductive kick to ±24 V. Use Value: Common-cathode topology reduces component count vs. discrete dual-diode solutions; SOT23 enables placement adjacent to IC pins. |
| Dual-Rail Power Monitor Reference | Compact DC-DC Feedback Divider |
Use Scenario: Generating precise thresholds for undervoltage/overvoltage detection on dual 24 V supply rails in PLC backplanes. IC Role / Device Role / Timing Role: Each Zener supplies a stable 24 V reference to comparator inputs monitoring separate rails. Use Value: Matched VZ eliminates calibration offset between channels; +0.09 %/°C TC allows predictable drift compensation. | Use Scenario: Setting output voltage in isolated flyback converters where feedback optocoupler requires stable reference. IC Role / Device Role / Timing Role: One Zener sets primary-side reference; second serves as redundant clamp on auxiliary winding. Use Value: Single-component dual function reduces BOM count and improves layout symmetry; 80 Ω ZZT minimizes regulation error under varying load. |
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-C24 (Nexperia) | Single 24 V Zener, DO35 package, 400 mW, no voltage matching spec | Requires two devices and external matching; larger footprint, no common cathode | Select when higher power per diode is needed and board area is not constrained |
| DZ23C27-7 (Diodes Inc.) | 27 V nominal, same SOT23 package, 80 Ω ZZT, +0.09 %/°C TC | Higher voltage threshold; identical pinout and thermal behavior | Choose for systems requiring 27 V clamping or reference, with drop-in mechanical compatibility |
Compared with BZX79-C24 and DZ23C27-7, DZ23C24-7 uniquely delivers matched dual 24 V regulation in minimal area-critical for miniaturized sensor nodes and multi-rail monitors where inter-device tracking and footprint efficiency define design success.
Availability
DZ23C24-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, low-power analog front-end protection, and dual-rail power monitor reference applications requiring stable component supply and JEDEC-qualified reliability.
Supply support for DZ23C24-7 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, environmentally compliant components for industrial, computing, and consumer markets.
The DZ23 series targets space-constrained voltage reference and protection needs, with dual-Zener architecture optimized for matched performance and automated assembly in SMT production lines.
FAQ
What is the maximum continuous power each Zener can dissipate in DZ23C24-7?
The device is rated for 300 mW total power dissipation across both Zeners. Since they share thermal mass in one SOT23 package, neither diode should exceed 300 mW individually-designers must sum dissipation from both anodes into the common cathode. Derating per Figure 1 applies above 50 °C ambient.
Can DZ23C24-7 be used as a bidirectional TVS for ESD protection?
Yes-its common-cathode structure allows bidirectional clamping: applying reverse voltage between Pin 1 and Pin 2 triggers Zener 1; between Pin 3 and Pin 2 triggers Zener 2. However, it is not rated for IEC 61000-4-2 ESD pulses; use only for low-energy transients (<100 mJ) in conjunction with series impedance.
Is there a recommended PCB pad layout for optimal thermal performance?
Yes-Diodes specifies a recommended SOT23 pad layout (2.0 mm × 0.8 mm pad, 1.35 mm X1, 0.9 mm Y, 2.9 mm Y1) to achieve the stated 417 °C/W RθJA. Use thermal vias under the cathode pad (Pin 2) and maintain ≥0.25 mm solder mask clearance to maximize heat transfer to inner layers.
Does DZ23C24-7 meet automotive qualification requirements?
No-the standard DZ23C24-7 is commercial-grade. For automotive use, Diodes offers the Q-suffix variant (e.g., DZ23C24Q-7-F), which is AEC-Q101 qualified, PPAP-capable, and manufactured in IATF 16949-certified facilities. Always verify part number suffix before automotive deployment.
DZ23C24-7 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:
- Discontinued at Digi-Key
- Configuration:
- 1 Pair Common Cathode
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±5.83%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 18 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DZ23C24-7 FAQ
1.How can I place an order for DZ23C24-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZ23C24-7 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 DZ23C24-7 reliable?
The price and inventory of DZ23C24-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ23C24-7 is usually 5 days.
3.What payment methods are accepted for DZ23C24-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ23C24-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZ23C24-7?
DZ23C24-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZ23C24-7 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 DZ23C24-7?
For technical support, including DZ23C24-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ23C24-7 requirements.
6.How does Aetrix verify that DZ23C24-7 is sourced from the original manufacturer or authorized distributors?
All DZ23C24-7 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 DZ23C24-7 meets industry standards.
7.What is the process for return or replacement of DZ23C24-7?
All DZ23C24-7 units undergo pre-shipment inspection (PSI). If there is an issue with DZ23C24-7, 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 DZ23C24-7 part is unused and in its original packaging.
Return procedure for DZ23C24-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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