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Diodes Incorporated DZ23C22-7-F
- Part No.:
- DZ23C22-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DZ23C22-7-F.pdf
- Description:
- DIODE ZENER ARRAY 22V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:103
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Product details
Overview
DZ23C22-7-F from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode with nominal zener voltage 22V (20.8–23.3V range), ±5% matching between diodes, and 55Ω maximum zener impedance at 5mA. It operates from −65°C to +150°C and is used for precision voltage reference and overvoltage protection in power supply feedback loops and analog sensor biasing circuits.
For engineers reviewing the DZ23C22-7-F datasheet, DZ23C22-7-F pinout, DZ23C22-7-F application, or DZ23C22-7-F equivalent, key selection factors include matched dual-zener tolerance, SOT23 thermal resistance (417°C/W), temperature coefficient (+0.09%/°C), reverse leakage (<0.1µA at 17V), and JEDEC-qualified reliability for industrial control and instrumentation designs.
Technical Context
This dual-Zener device integrates two independent zener elements sharing a common cathode terminal in a single SOT23 package. Its matched voltage tolerance (≤5% ΔVZ) enables differential reference generation and rail-to-rail clamping without external trimming.
The device exhibits a positive temperature coefficient of +0.09%/°C above 10V and maintains stable regulation under 5mA test current, with low dynamic impedance (55Ω) ensuring minimal output variation across load transients in feedback networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 20.8V to 23.3V at IZT = 5mA - defines usable regulation window for 22V nominal reference |
| Max Zener Impedance | 55Ω at IZT = 5mA - ensures <±110mV output shift under ±5mA load change |
| Power Dissipation | 300mW - supports continuous operation up to 13.6mA at 22V in FR4 layout with recommended pads |
| Temperature Coefficient | +0.09%/°C - predicts +19.8mV/°C drift near 22V, critical for high-accuracy analog systems |
| Reverse Leakage | <0.1µA at VR = 17V - guarantees negligible current draw in standby mode of voltage monitor circuits |
| Thermal Resistance | 417°C/W junction-to-ambient - requires thermal pad design to sustain full power at >85°C ambient |
Pinout & Package
Package: SOT23 - molded plastic case, 0.008g weight, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | First Zener Anode | Connects to first regulated node; reverse-biased to cathode for 22V breakdown |
| Pin 2 (Cathode) | Common Cathode | Shared cathode node for both Zeners; ties to system ground or reference rail |
| Pin 3 (Anode 2) | Second Zener Anode | Independent anode for second 22V Zener; enables dual-rail clamping or redundancy |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners, Common Cathode | Enables compact dual-voltage reference or bidirectional overvoltage clamp without discrete pairing |
| ≤5% ΔVZ Matching | Supports ratiometric sensing and differential regulation where tracking between channels is essential |
| JEDEC High Reliability Qualification | Validated for extended life in industrial environments per AEC-Q stress protocols |
| Lead-Free & Halogen-Free | Complies with RoHS 3 and automotive green standards; eliminates solder joint corrosion risk |
Applications
| Industrial Power Supply Feedback | Automotive Sensor Bias Reference |
|---|---|
Use Scenario: Regulating isolated DC-DC converter output via optocoupler feedback network. IC Role / Device Role / Timing Role: Dual-Zener provides stable 22V reference for TL431-like error amplifier input and secondary-side overvoltage latch. Use Value: Matched voltage tracking ensures consistent trip point across temperature, reducing calibration drift in 24V industrial SMPS. |
Use Scenario: Providing bias voltage to MEMS pressure sensor in engine control unit. IC Role / Device Role / Timing Role: Supplies clean, temperature-stable 22V bias while clamping ESD transients on sensor lines. Use Value: Common-cathode architecture allows shared ground return, minimizing PCB routing noise coupling into analog front-end. |
| Programmable Logic Controller I/O Protection | Medical Instrumentation Voltage Monitor |
Use Scenario: Protecting 24V digital input channels against surge and miswiring. IC Role / Device Role / Timing Role: Dual Zeners clamp both line-to-ground and line-to-VCC faults using same cathode node. Use Value: ≤5% matching ensures symmetrical clamping thresholds, preventing false triggering during fast transients. |
Use Scenario: Monitoring battery pack voltage in portable diagnostic equipment. IC Role / Device Role / Timing Role: Acts as precision 22V threshold detector in comparator-based undervoltage lockout circuit. Use Value: Low 0.1µA leakage preserves battery life over multi-year shelf storage without compromising detection accuracy. |
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-C22 (ON Semiconductor) | Single 22V Zener in DO-35; no dual configuration or matching spec | Requires two devices and external matching; higher board area and assembly cost | Only suitable when dual-channel integration is unnecessary and legacy through-hole assembly is retained |
| DZ23C24-7-F (Diodes Inc.) | 24V nominal (22.8–25.6V), identical package and matching performance | Used where 24V rail regulation or higher clamp threshold is required | Select when system nominal voltage shifts to 24V; pin-compatible drop-in with identical layout and thermal behavior |
Compared with BZX79-C22 and DZ23C24-7-F, DZ23C22-7-F uniquely delivers matched dual-zener functionality in SOT23, enabling space-constrained differential references and bidirectional clamping unattainable with single-diode alternatives.
Availability
DZ23C22-7-F is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor modules, programmable logic controller I/O stages, and medical voltage monitoring circuits requiring stable component supply with JEDEC-qualified reliability.
Supply support for DZ23C22-7-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.
DZ23C22-7-F belongs to the DZ23C series of dual common-cathode Zener diodes, designed specifically for compact, matched-voltage reference and overvoltage protection in space-constrained automated assembly environments.
FAQ
What is the maximum continuous reverse current this device can handle at 22V?
At 22V and 25°C ambient, the device dissipates 300mW maximum. Using P = V × I, the absolute maximum continuous reverse current is 13.6mA. Derating applies above 25°C per Figure 1: at 85°C ambient, max current drops to ~9.2mA to stay within thermal limits on standard FR4.
Can Pin 1 and Pin 3 be used simultaneously for independent regulation paths?
Yes - Pin 1 and Pin 3 serve as independent anodes tied to the common cathode (Pin 2). Each can regulate separate 22V rails, provided total power dissipation remains ≤300mW and thermal design accommodates combined heat generation.
Is DZ23C22-7-F qualified for automotive applications?
No - DZ23C22-7-F is commercial-grade. For automotive use, Diodes offers the Q-suffix variant DZ23C22Q-7-F, which is AEC-Q101 qualified, PPAP-capable, and manufactured in IATF 16949 certified facilities.
How does the +0.09%/°C temperature coefficient affect long-term stability in a 0–70°C operating range?
Over 70°C span, the coefficient causes ~6.3mV/°C × 70°C = ±441mV total drift from nominal 22V - i.e., regulation shifts from ~21.56V to ~22.44V. This must be factored into reference accuracy budgets for high-precision ADC or DAC biasing.
DZ23C22-7-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):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 55 Ohms
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DZ23C22-7-F FAQ
1.How can I place an order for DZ23C22-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for DZ23C22-7-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 DZ23C22-7-F reliable?
The price and inventory of DZ23C22-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ23C22-7-F is usually 5 days.
3.What payment methods are accepted for DZ23C22-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ23C22-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZ23C22-7-F?
DZ23C22-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZ23C22-7-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 DZ23C22-7-F?
For technical support, including DZ23C22-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ23C22-7-F requirements.
6.How does Aetrix verify that DZ23C22-7-F is sourced from the original manufacturer or authorized distributors?
All DZ23C22-7-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 DZ23C22-7-F meets industry standards.
7.What is the process for return or replacement of DZ23C22-7-F?
All DZ23C22-7-F units undergo pre-shipment inspection (PSI). If there is an issue with DZ23C22-7-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 DZ23C22-7-F part is unused and in its original packaging.
Return procedure for DZ23C22-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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