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Diodes Incorporated DZ23C9V1-7
- Part No.:
- DZ23C9V1-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DZ23C9V1-7.pdf
- Description:
- DIODE ZENER ARRAY 9.1V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,636
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Product details
Overview
DZ23C9V1-7 from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode with nominal zener voltage 9.1V (8.5–9.6V range), max zener impedance 10Ω at 5mA, and positive temperature coefficient +0.065%/°C; used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the DZ23C9V1-7 datasheet, DZ23C9V1-7 pinout, DZ23C9V1-7 application, or DZ23C9V1-7 equivalent, key selection criteria include matched dual-zener tracking (≤5% ΔVZ), SOT23 package compatibility with automated assembly, and thermal resistance of 417°C/W on FR4 board.
Technical Context
This dual Zener operates in reverse breakdown mode with two anodes sharing one cathode terminal, enabling independent voltage regulation paths within a single SOT23 footprint. Its matched VZ tolerance ensures consistent clamping across both diodes under identical bias conditions.
The device exhibits a +0.065%/°C temperature coefficient and maintains stable regulation down to 7.0V minimum reverse voltage at IR = 0.1µA, supporting low-leakage sensing and reference applications where thermal drift must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 9.1V nominal (8.5–9.6V range); defines precise clamping threshold for feedback or protection circuits |
| Power Dissipation | 300mW; limits continuous current to ~33mA at 9.1V without heatsinking |
| Zener Impedance | 10Ω max at IZT = 5mA; ensures minimal output voltage variation under load changes |
| Temperature Coefficient | +0.065%/°C; enables predictable VZ drift compensation in temperature-sensitive designs |
| Reverse Leakage | <0.1µA at 7.0V; supports ultra-low-power standby and battery-backed reference applications |
| Thermal Resistance | 417°C/W junction-to-ambient; requires careful PCB copper area planning for sustained power operation |
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 | Independent reverse-biased input for first regulated path; connects to target node requiring 9.1V clamp |
| Cathode (Pin 2) | Shared cathode | Common return path for both Zeners; ties to system ground or reference potential |
| Anode 2 (Pin 3) | Second Zener anode | Independent reverse-biased input for second regulated path; enables dual-rail or redundancy schemes |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners, common cathode | Enables compact dual-voltage reference or redundant clamping in one SOT23 footprint |
| Matched VZ tracking ≤5% | Ensures consistent regulation between channels without external trimming or calibration |
| Lead-free & RoHS 3 compliant | Meets global environmental compliance requirements including <900ppm Br/Cl and <1000ppm Sb |
| Automated insertion compatible | SOT23 outline and terminal finish support high-yield pick-and-place and reflow assembly |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler feedback network. IC Role / Device Role / Timing Role: Dual Zener provides stable 9.1V reference for TL431-like error amplifier biasing and overvoltage latch. Use Value: Matched VZ ensures symmetrical response during transient overload, improving fault detection reliability. |
Use Scenario: Protecting analog front-end inputs of 24-bit ADCs from ESD and overvoltage events. IC Role / Device Role / Timing Role: Clamps sensor signal lines to ±9.1V while maintaining sub-µA leakage below 7V. Use Value: Low CT (<10pF typical) avoids signal integrity degradation at 10kHz+ bandwidths. |
| Automotive Body Control Module | Programmable Logic Controller Input Protection |
Use Scenario: Voltage stabilization for LIN bus transceiver bias rails in 12V vehicle systems. IC Role / Device Role / Timing Role: Supplies regulated 9.1V to internal LDOs and logic interfaces under cold-crank conditions. Use Value: Positive TC compensates for ambient temperature rise in engine bay enclosures. |
Use Scenario: Guarding digital input terminals against field-wiring transients in factory automation I/O modules. IC Role / Device Role / Timing Role: Absorbs 100ns/1kV surges using dual-anode configuration for bidirectional clamping. Use Value: 300mW rating sustains repeated 10A/8/20µs surge pulses without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX79-C9V1 (Nexperia) | Single Zener, DO-35 package, 400mW, ±5% VZ tolerance, no dual configuration | Requires two devices and extra board space; lacks matched tracking | Select only when dual-channel operation is unnecessary and through-hole mounting is preferred |
| DZ23C9V1-Q-7-F (Diodes Inc.) | Identical electrical specs; AEC-Q101 qualified, PPAP-capable, manufactured in IATF 16949 facility | Mandatory for automotive production; supports change control and long-term supply assurance | Choose for OEM automotive programs requiring qualified components and documented traceability |
Compared with BZX79-C9V1, DZ23C9V1-7 saves 40% board area and guarantees ≤5% inter-diode VZ mismatch; versus DZ23C9V1-Q-7-F, it offers commercial-grade cost and availability but excludes automotive qualification documentation.
Availability
DZ23C9V1-7 is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor interfaces, automotive body control modules, and programmable logic controller input protection requiring stable component supply and SOT23-compatible automated assembly.
Supply support for DZ23C9V1-7 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
DZ23C9V1-7 belongs to the DZ23C series of dual common-cathode Zener diodes, engineered for high-reliability voltage reference and overvoltage protection in space-constrained, high-volume applications.
FAQ
What is the maximum continuous Zener current for DZ23C9V1-7 at 25°C ambient?
At 25°C ambient and with recommended FR4 pad layout, the maximum continuous Zener current is approximately 33mA, calculated from 300mW / 9.1V. Derating begins above 25°C per the 417°C/W thermal resistance curve, reaching zero dissipation at ~100°C ambient.
Can DZ23C9V1-7 be used as a single Zener by leaving one anode unconnected?
Yes - Anode 1 or Anode 2 may be left floating without affecting the other diode's regulation performance. However, the unused anode must be electrically isolated (not shorted or tied to any potential), as unintended biasing could alter leakage or breakdown behavior.
Does DZ23C9V1-7 meet AEC-Q101 stress testing requirements?
No - DZ23C9V1-7 is the commercial-grade variant. The automotive-qualified version is DZ23C9V1-Q-7-F, which undergoes full AEC-Q101 qualification including HTGB, TCT, and ESD testing, and is produced in IATF 16949-certified facilities.
How does the +0.065%/°C temperature coefficient impact accuracy over –40°C to +125°C?
Over that range, total VZ drift is approximately ±0.95%, calculated as 165°C × 0.065%/°C. This corresponds to ±0.086V shift around 9.1V nominal, making it suitable for non-critical references but not metrology-grade applications without external compensation.
DZ23C9V1-7 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):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 10 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
DZ23C9V1-7 FAQ
1.How can I place an order for DZ23C9V1-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZ23C9V1-7 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 DZ23C9V1-7 reliable?
The price and inventory of DZ23C9V1-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ23C9V1-7 is usually 5 days.
3.What payment methods are accepted for DZ23C9V1-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ23C9V1-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZ23C9V1-7?
DZ23C9V1-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZ23C9V1-7 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 DZ23C9V1-7?
For technical support, including DZ23C9V1-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ23C9V1-7 requirements.
6.How does Aetrix verify that DZ23C9V1-7 is sourced from the original manufacturer or authorized distributors?
All DZ23C9V1-7 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 DZ23C9V1-7 meets industry standards.
7.What is the process for return or replacement of DZ23C9V1-7?
All DZ23C9V1-7 units undergo pre-shipment inspection (PSI). If there is an issue with DZ23C9V1-7, 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 DZ23C9V1-7 part is unused and in its original packaging.
Return procedure for DZ23C9V1-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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