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Diodes Incorporated DZ9F4V3S92-7
- Part No.:
- DZ9F4V3S92-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
DZ9F4V3S92-7.pdf
- Description:
- DIODE ZENER 4.3V 200MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:19,300
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Product details
Overview
DZ9F4V3S92-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 4.3 V, ±5% tolerance (4.09–4.52 V), 5 mA test current, 100 Ω maximum zener impedance at 5 mA, and 200 mW power dissipation in SOD923 package. It provides precision voltage reference and overvoltage protection in space-constrained power management circuits.
For engineers reviewing the DZ9F4V3S92-7 datasheet, DZ9F4V3S92-7 pinout, DZ9F4V3S92-7 application, or DZ9F4V3S92-7 equivalent, key selection criteria include zener voltage accuracy, low dynamic impedance, thermal stability (−3.5 mV/°C tempco), and ultra-small 1.0 × 0.6 mm footprint for high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation across load and line variations. Its flat-lead SOD923 package enables efficient heat transfer from junction to PCB, supporting continuous operation up to +150°C ambient with 625°C/W thermal resistance.
Designed for low-current biasing and reference applications, it delivers tight voltage control at IZT = 5 mA with <210 pF capacitance and ≤5 µA reverse leakage at 1 V, making it suitable for noise-sensitive analog and mixed-signal circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.3 V nominal, 4.09–4.52 V range at 5 mA - ensures precise clamping in 3.3 V/5 V rail monitoring |
| Power Dissipation (PD) | 200 mW at +25°C - supports low-power regulation without heatsinking on standard FR-4 |
| Zener Impedance (ZZT) | ≤100 Ω at 5 mA - minimizes output voltage variation under dynamic load changes |
| Reverse Leakage (IR) | ≤5 µA at VR = 1 V - prevents excessive quiescent current in battery-powered systems |
| Temperature Coefficient | −3.5 mV/°C - enables predictable voltage drift compensation in temperature-varying environments |
| Capacitance (CT) | 210 pF at 1 MHz, 0 V - compatible with low-frequency reference and protection, not RF bypass |
| Package | SOD923 (1.0 × 0.6 × 0.37 mm) - fits 0201-class board area with exposed terminals for visual solder inspection |
Pinout & Package
The SOD923 package is a two-terminal, cathode-banded surface-mount device. Terminals are flat-leaded with exposed metal for direct thermal conduction and optical solder-joint verification. No X-ray inspection required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; defines polarity for reverse-bias operation |
| Cathode (banded end) | Zener breakdown terminal / regulated output node | Connected to voltage rail being clamped or referenced; carries reverse current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1.0 × 0.6 mm SOD923 - saves >50% board area vs. SOD-123 in portable and wearables |
| Thermally efficient leadframe | Matt tin-annealed Alloy 42 - achieves 625°C/W RθJA without thermal pads or vias |
| Visible solder joints | Exposed flat leads - eliminates need for X-ray inspection, reducing assembly QA cost |
| Green compliance | Halogen- and antimony-free, RoHS-compliant - meets IPC-1752A material declaration requirements |
Applications
| USB Port Protection | Low-Power Sensor Reference |
|---|---|
Use Scenario: Clamping transient surges on USB 2.0 data lines and VBUS during hot-plug events. IC Role / Device Role / Timing Role: Zener diode acting as bidirectional overvoltage clamp between signal line and ground. Use Value: Limits voltage to ≤4.52 V, protecting 3.3 V transceivers while adding only 210 pF loading. |
Use Scenario: Providing stable bias voltage for analog front-end of IoT environmental sensors. IC Role / Device Role / Timing Role: Precision shunt reference supplying excitation current to resistive sensor bridges. Use Value: Delivers 4.3 V ±2.5% over −40°C to +85°C with <5 µA leakage, minimizing sensor offset drift. |
| Microcontroller Reset Circuit | LED Current Regulation |
Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ MCUs operating from 3.3 V supply. IC Role / Device Role / Timing Role: Zener-based voltage detector feeding comparator input for power-on reset assertion. Use Value: Enables accurate 4.3 V trip point with −3.5 mV/°C tempco, ensuring reliable reset across industrial temperature range. |
Use Scenario: Setting constant current for indicator LEDs in medical handheld devices. IC Role / Device Role / Timing Role: Shunt regulator maintaining fixed voltage drop across current-setting resistor. Use Value: Regulates LED current within ±3% despite 10% supply variance, using only 200 mW dissipation budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B4V3,115 (Nexperia) | Same 4.3 V nominal, but SOD-323 package (1.7 × 1.25 mm); 400 mW PD; 90 Ω ZZT | Larger footprint, higher power handling - better for higher-current clamping, less suitable for ultra-dense layouts | Select when thermal margin >200 mW is required and board area permits SOD-323 |
| MMSZ4V3T1G (ON Semiconductor) | SOD-123 package (2.7 × 1.4 mm); 500 mW PD; 100 Ω ZZT; −3.5 mV/°C tempco | 3× larger footprint, higher power rating - suited for general-purpose regulation where density is secondary | Choose for legacy designs already using SOD-123 footprints or where higher surge energy absorption is needed |
Compared with BZX384-B4V3,115 and MMSZ4V3T1G, DZ9F4V3S92-7 offers the smallest board area (1.0 × 0.6 mm) and lowest profile (0.37 mm height), enabling miniaturized designs where thermal load remains ≤200 mW and zener impedance ≤100 Ω is sufficient.
Availability
DZ9F4V3S92-7 is available at Aetrix Electronics and suitable for USB port protection, low-power sensor reference, microcontroller reset circuits, and LED current regulation requiring stable component supply in high-volume consumer and industrial production.
Supply support for DZ9F4V3S92-7 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.
DZ9F4V3S92-7 belongs to the DZ9F series of ultra-miniature Zener diodes, engineered specifically for space-constrained voltage regulation and ESD protection in portable, wearable, and IoT edge devices.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The DZ9F4V3S92-7 has a nominal zener voltage of 4.3 V with a guaranteed breakdown range of 4.09 V to 4.52 V at 5 mA test current. It does not specify a separate "maximum reverse voltage" rating; operation above 4.52 V in reverse bias will initiate controlled zener conduction, limited by external current limiting to stay within its 200 mW power rating.
Can this part be used in place of a 3.3 V Zener diode?
No - DZ9F4V3S92-7 is rated for 4.3 V nominal zener voltage and is not interchangeable with 3.3 V Zeners such as DZ9F3V3S92. Substituting it would raise the clamping or reference voltage by ~1 V, potentially causing overvoltage stress on downstream 3.3 V components or incorrect reset thresholds.
Is the SOD923 package compatible with standard reflow profiles?
Yes - the SOD923 package is qualified for JEDEC J-STD-020 moisture sensitivity level 1 and supports standard lead-free reflow profiles (peak 260°C). Its matte tin finish and Alloy 42 leadframe ensure reliable solderability per MIL-STD-202, Method 208 without special paste or preheat adjustments.
Does this Zener diode have a specified failure mode under overcurrent conditions?
Under sustained overcurrent exceeding its 200 mW power limit, DZ9F4V3S92-7 will experience thermal runaway leading to open-circuit failure. The datasheet specifies no short-circuit failure mode; design must include series current limiting (e.g., ≥1 kΩ resistor at 5 V supply) to prevent irreversible junction damage.
DZ9F4V3S92-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.3 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
DZ9F4V3S92-7 FAQ
1.How can I place an order for DZ9F4V3S92-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DZ9F4V3S92-7 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 DZ9F4V3S92-7 reliable?
The price and inventory of DZ9F4V3S92-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DZ9F4V3S92-7 is usually 5 days.
3.What payment methods are accepted for DZ9F4V3S92-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DZ9F4V3S92-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DZ9F4V3S92-7?
DZ9F4V3S92-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DZ9F4V3S92-7 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 DZ9F4V3S92-7?
For technical support, including DZ9F4V3S92-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DZ9F4V3S92-7 requirements.
6.How does Aetrix verify that DZ9F4V3S92-7 is sourced from the original manufacturer or authorized distributors?
All DZ9F4V3S92-7 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 DZ9F4V3S92-7 meets industry standards.
7.What is the process for return or replacement of DZ9F4V3S92-7?
All DZ9F4V3S92-7 units undergo pre-shipment inspection (PSI). If there is an issue with DZ9F4V3S92-7, 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 DZ9F4V3S92-7 part is unused and in its original packaging.
Return procedure for DZ9F4V3S92-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DZ9F4V3S92-7 Tags
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