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Diodes Incorporated DZ23C16-7
- Part No.:
- DZ23C16-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DZ23C16-7.pdf
- Description:
- DIODE ZENER ARRAY 16V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,160
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Product details
Overview
DZ23C16-7 from Diodes Incorporated is a dual common-cathode 300mW surface-mount Zener diode with nominal zener voltage 16V (15.3–17.1V range), ±5% matching between diodes, and 40Ω typical zener impedance at 5mA. It operates from −65°C to +150°C and is used for precision voltage reference and overvoltage protection in dual-rail power monitoring circuits.
For engineers reviewing the DZ23C16-7 datasheet, DZ23C16-7 pinout, DZ23C16-7 application, or DZ23C16-7 equivalent, key selection criteria include matched dual-zener tolerance, SOT23 thermal resistance (417°C/W), temperature coefficient (+0.090%/°C), and JEDEC-qualified reliability for industrial power management designs.
Technical Context
This dual Zener integrates two independently rated but tightly matched zener elements sharing a common cathode terminal, enabling differential reference generation or redundant clamping in compact space-constrained layouts. Its SOT23 package supports automated placement and offers 300mW total dissipation with derating above 25°C ambient.
The device exhibits a positive temperature coefficient of +0.090%/°C and maintains ≤5% VZ mismatch between diodes under identical test conditions (IZT = 5mA). Minimum reverse voltage is 12.0V at IR = 0.1µA, confirming stable breakdown onset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 15.3V to 17.1V at IZT = 5mA - defines usable regulation window for 16V nominal reference |
| Max Zener Impedance | 40Ω at IZT = 5mA - ensures low dynamic resistance for stable voltage regulation under load variation |
| Temperature Coefficient | +0.090%/°C - enables predictable drift compensation in temperature-sensitive analog references |
| Power Dissipation | 300mW - sets maximum continuous DC power handling on FR4 board with recommended pad layout |
| Thermal Resistance | 417°C/W junction-to-ambient - determines allowable ambient rise before exceeding 150°C max junction temperature |
| Operating Temperature | −65°C to +150°C - supports deployment in extended industrial and automotive under-hood environments |
| Voltage Matching | ≤5% ΔVZ between diodes - enables accurate differential sensing or dual-rail clamping without calibration |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin-plated alloy 42 leads, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | First zener anode - connects to input rail requiring clamping or reference derivation |
| Pin 2 | Cathode (Common) | Shared cathode node - ties both zeners to regulated output or ground-referenced bias point |
| Pin 3 | Anode 2 | Second zener anode - enables independent second reference or complementary clamping path |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners, Common Cathode | Enables compact dual-reference generation or bidirectional overvoltage protection without external node sharing |
| ≤5% VZ Matching | Supports high-accuracy differential measurements and matched rail monitoring in power supply supervision ICs |
| 300mW Power Rating | Allows direct use in low-power sensor interfaces and microcontroller reset circuits without external current limiting |
| SOT23 Footprint | Facilitates high-density PCB layouts and compatibility with standard pick-and-place equipment for volume manufacturing |
| JEDEC High-Reliability Qualification | Validates suitability for mission-critical industrial control and telecom infrastructure applications |
Applications
| Industrial Power Supervision | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Monitoring dual 15V/16V rails in PLC I/O modules to detect undervoltage or overvoltage faults. IC Role / Device Role / Timing Role: Dual zener provides matched reference thresholds for comparator inputs driving fault logic. Use Value: ≤5% VZ matching eliminates need for individual trimming, reducing BOM count and calibration time. |
Use Scenario: Generating clean, temperature-stable reset signal for ARM Cortex-M4 microcontrollers during cold start. IC Role / Device Role / Timing Role: Zener clamps reset line to 16V while RC network sets delay; common cathode simplifies layout. Use Value: +0.090%/°C TC ensures reset threshold remains within spec across −40°C to +85°C operating range. |
| Dual-Rail Analog Reference | Overvoltage Protection for CAN Transceivers |
Use Scenario: Providing symmetrical ±16V references for op-amp biasing in isolated analog front-ends for current sensing. IC Role / Device Role / Timing Role: One zener sets positive rail, the other negative rail via inverting configuration with shared cathode grounded. Use Value: Tight matching ensures balanced headroom and minimizes offset drift in differential amplifier stages. |
Use Scenario: Clamping CAN_H and CAN_L lines against transients in automotive body control modules. IC Role / Device Role / Timing Role: Each anode connects to one bus line; common cathode tied to 16V rail to limit peak voltage swing. Use Value: 300mW rating handles ISO 7637-2 pulse 1/2a energy without degradation; SOT23 fits tight connector zones. |
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-C16 (Nexperia) | Single 16V Zener in DO-35; no dual element or matching spec | Requires two discrete devices and external matching verification | Select when cost sensitivity outweighs layout density and matching assurance |
| DZ23C15-7 (Diodes Inc.) | 15V nominal (13.8–15.6V range); same package, pinout, and matching performance | Suitable where 15V reference is required instead of 16V; identical thermal and reliability profile | Choose for design reuse across adjacent voltage grades without changing layout or qualification |
Compared with BZX79-C16 and DZ23C15-7, DZ23C16-7 uniquely delivers factory-matched dual 16V regulation in one SOT23 footprint-reducing component count by 50% versus discrete solutions and enabling tighter tolerance stack-ups than single-Zener alternatives.
Availability
DZ23C16-7 is available at Aetrix Electronics and suitable for industrial power supervision, microcontroller reset circuitry, dual-rail analog reference generation, and overvoltage protection in CAN transceiver interfaces requiring stable component supply and JEDEC-qualified reliability.
Supply support for DZ23C16-7 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 industrial, computing, and automotive markets.
DZ23C16-7 belongs to the DZ23C series of dual common-cathode Zener diodes, designed specifically for space-constrained voltage reference and protection applications demanding matched performance and automated assembly compatibility.
FAQ
What is the maximum continuous reverse current for DZ23C16-7 before thermal runaway?
The device is rated for 300mW total dissipation. At 16V nominal zener voltage, this corresponds to a maximum average reverse current of 18.75mA (300mW ÷ 16V) under ideal heat sinking. With RθJA = 417°C/W on FR4, sustained operation above 10mA at 70°C ambient requires thermal derating per Figure 1 in DS18002.
Can DZ23C16-7 be used in place of a single 16V Zener diode?
Yes - Pin 1 and Pin 2 form one functional 16V Zener; Pin 3 and Pin 2 form the second. Either pair may be used independently. The unused anode must be left open or tied to a non-active node; floating anodes do not affect regulation of the active path.
Is DZ23C16-7 qualified for automotive applications?
The commercial-grade DZ23C16-7 is not AEC-Q200 qualified. For automotive use, Diodes offers the Q-suffix variant DZ23C16Q-7-F, manufactured in IATF 16949-certified facilities and qualified to AEC-Q200 standards - available through Aetrix Electronics upon request.
How does the +0.090%/°C temperature coefficient impact long-term reference stability?
Over a 100°C range (−25°C to +75°C), the coefficient causes ~9mV drift per volt of nominal VZ, or ~144mV total for 16V. This is acceptable for non-precision supervision but requires compensation in metrology-grade references - confirmed by measured data in Figure 2 of DS18002.
DZ23C16-7 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):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 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
DZ23C16-7 FAQ
1.How can I place an order for DZ23C16-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZ23C16-7 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 DZ23C16-7 reliable?
The price and inventory of DZ23C16-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ23C16-7 is usually 5 days.
3.What payment methods are accepted for DZ23C16-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ23C16-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZ23C16-7?
DZ23C16-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZ23C16-7 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 DZ23C16-7?
For technical support, including DZ23C16-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ23C16-7 requirements.
6.How does Aetrix verify that DZ23C16-7 is sourced from the original manufacturer or authorized distributors?
All DZ23C16-7 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 DZ23C16-7 meets industry standards.
7.What is the process for return or replacement of DZ23C16-7?
All DZ23C16-7 units undergo pre-shipment inspection (PSI). If there is an issue with DZ23C16-7, 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 DZ23C16-7 part is unused and in its original packaging.
Return procedure for DZ23C16-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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