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Diodes Incorporated DZ23C12-7
- Part No.:
- DZ23C12-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DZ23C12-7.pdf
- Description:
- DIODE ZENER ARRAY 12V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,194
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Product details
Overview
DZ23C12-7 from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode with nominal zener voltage 12V (11.4–12.7V range), maximum zener impedance 20Ω at 5mA, and temperature coefficient +0.075%/°C - used for precision voltage reference and overvoltage protection in compact DC power rails.
For engineers reviewing the DZ23C12-7 datasheet, DZ23C12-7 pinout, DZ23C12-7 application, or DZ23C12-7 equivalent, this dual-Zener device supports tight-tolerance dual-rail regulation, offers ≤5% VZ matching between elements, and is optimized for automated SMT assembly on space-constrained PCBs.
Technical Context
This dual-Zener diode integrates two independent 12V zener elements sharing a common cathode terminal in a single SOT23 package, enabling matched voltage clamping or dual-reference generation without inter-device drift. Its ±5% VZ matching and low thermal resistance (417°C/W) support stable operation across -65°C to +150°C ambient.
The device operates with 5mA test current, delivers 9.0V minimum reverse voltage at 0.1µA leakage, and exhibits +0.075%/°C temperature coefficient - ensuring predictable voltage shift under thermal load in feedback or sensing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 11.4V to 12.7V at IZT = 5mA - defines usable regulation window for 12V rail stabilization |
| Max Zener Impedance | 20Ω at IZT = 5mA - ensures minimal output voltage variation under load transients |
| Power Dissipation | 300mW - sets maximum continuous power handling on FR4 board with recommended pad layout |
| Temp Coefficient | +0.075%/°C - quantifies positive VZ drift per degree Celsius rise in junction temperature |
| Min Reverse Voltage | 9.0V at IR = 0.1µA - confirms reliable blocking behavior below breakdown threshold |
| Junction Temp Range | -65°C to +150°C - enables deployment in automotive under-hood or industrial control 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 |
|---|---|---|
| Pin 1 (Anode 1) | First Zener Anode | Connects to first 12V zener element; reverse-biased to generate reference voltage |
| Pin 2 (Cathode) | Common Cathode | Shared cathode node for both zeners; ties to regulated rail or ground reference point |
| Pin 3 (Anode 2) | Second Zener Anode | Connects to second 12V zener element; enables dual-rail or differential reference use |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners, Common Cathode | Enables matched 12V references from one footprint - reduces board area vs. discrete dual-diode solution |
| VZ Matching Tolerance | ≤5% ΔVZ between elements - supports high-accuracy differential sensing or redundant clamping |
| Lead-Free & RoHS Compliant | Fully compliant with EU RoHS 2/3 and halogen/antimony-free "Green" definition (<900ppm Br/Cl, <1000ppm Sb) |
| SMT Assembly Optimized | Standard SOT23 outline with J-STD-020 Level 1 moisture rating - compatible with reflow and high-speed pick-and-place |
Applications
| Industrial Power Monitoring | Automotive Body Control Module |
|---|---|
Use Scenario: Monitoring 12V battery rail voltage in PLC I/O modules with dual-threshold detection. IC Role / Device Role / Timing Role: Dual-Zener provides matched upper/lower reference voltages for comparator hysteresis window. Use Value: ≤5% VZ matching eliminates calibration drift between thresholds, improving long-term accuracy. |
Use Scenario: Overvoltage protection for LIN bus transceiver supply in door module ECUs. IC Role / Device Role / Timing Role: Clamps transient spikes above 12.7V while maintaining low leakage below 9.0V. Use Value: 300mW rating handles ISO 7637-2 pulse 1/2a surges without degradation. |
| Medical Sensor Signal Conditioning | Consumer IoT Battery Management |
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in portable monitors. IC Role / Device Role / Timing Role: Supplies matched 12V references to ADC driver and sensor bias circuitry. Use Value: +0.075%/°C TC ensures <±1.5% VZ shift over 0–70°C operating range. |
Use Scenario: Regulating charging IC reference input in USB-C powered smart home hubs. IC Role / Device Role / Timing Role: Provides clean 12V reference for charge voltage feedback loop. Use Value: SOT23 footprint saves space vs. dual-SOD-323 solution while maintaining thermal margin. |
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-C12 (Nexperia) | Single 12V Zener in DO-35; no dual-element or VZ matching | Requires two devices for dual-reference use; larger footprint and higher assembly cost | Select when only single-rail reference needed and SOT23 is not required |
| DZ23C12-TP (Micro Commercial) | Identical electrical specs and SOT23 package; different marking and traceability | Same functional performance but non-Diodes sourcing; may lack AEC-Q automotive qualification path | Select for cost-sensitive commercial designs where Diodes-specific change control is unnecessary |
Compared with BZX79-C12 and DZ23C12-TP, DZ23C12-7 uniquely delivers matched dual 12V references in one SOT23 footprint with documented ≤5% VZ tracking - critical for differential sensing and compact dual-rail systems.
Availability
DZ23C12-7 is available at Aetrix Electronics and suitable for industrial power monitoring, automotive body control modules, and medical sensor signal conditioning requiring stable component supply and JEDEC-qualified reliability.
Supply support for DZ23C12-7 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 components for automotive, industrial, and computing markets.
DZ23C12-7 belongs to the DZ23C series of dual common-cathode Zener diodes designed specifically for space-constrained, high-precision voltage reference and protection applications in automated SMT production.
FAQ
What is the maximum continuous power dissipation for DZ23C12-7?
DZ23C12-7 has a rated power dissipation of 300mW when mounted on an FR4 PCB using the recommended pad layout. Derating begins above 25°C ambient, following the linear curve in Figure 1 - at 125°C ambient, maximum power drops to approximately 150mW.
How is the common cathode configuration used in circuit design?
The common cathode (Pin 2) connects to the regulated voltage node or ground, while Pins 1 and 3 serve as independent anodes. This allows either parallel connection for enhanced current handling or separate biasing for dual-reference generation - e.g., one zener for upper threshold, one for lower threshold in window comparators.
Does DZ23C12-7 meet automotive qualification standards?
The base DZ23C12-7 is commercial-grade. For automotive use, Diodes offers the Q-suffix variant DZ23C12Q-7-F, qualified to AEC-Q101, manufactured in IATF 16949 facilities, and PPAP-capable - confirmed in Diodes' official automotive product listing.
What is the significance of the "≤5% ΔVZ" specification?
This means the absolute difference between the zener voltages of the two integrated diodes - measured at 5mA - will not exceed 5% of the nominal 12V value (i.e., ≤0.6V). It enables precise differential referencing without external trimming, critical in instrumentation and feedback control circuits.
DZ23C12-7 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):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 20 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
DZ23C12-7 FAQ
1.How can I place an order for DZ23C12-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZ23C12-7 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 DZ23C12-7 reliable?
The price and inventory of DZ23C12-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ23C12-7 is usually 5 days.
3.What payment methods are accepted for DZ23C12-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ23C12-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZ23C12-7?
DZ23C12-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZ23C12-7 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 DZ23C12-7?
For technical support, including DZ23C12-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ23C12-7 requirements.
6.How does Aetrix verify that DZ23C12-7 is sourced from the original manufacturer or authorized distributors?
All DZ23C12-7 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 DZ23C12-7 meets industry standards.
7.What is the process for return or replacement of DZ23C12-7?
All DZ23C12-7 units undergo pre-shipment inspection (PSI). If there is an issue with DZ23C12-7, 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 DZ23C12-7 part is unused and in its original packaging.
Return procedure for DZ23C12-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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