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onsemi SZNZ9F6V2ST5G
- Part No.:
- SZNZ9F6V2ST5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
SZNZ9F6V2ST5G.pdf
- Description:
- DIODE ZENER 6.2V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:7,900
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Product details
Overview
SZNZ9F6V2ST5G from onsemi is a 6.2 V Zener diode in SOD-923 package, rated for 250 mW steady-state power dissipation, with tight Zener voltage tolerance (6.06 V to 6.33 V at 5 mA), low body height (0.40 mm), and Class 3 ESD rating (>16 kV HBM). It provides precision voltage regulation in space-constrained portable electronics.
For engineers reviewing the SZNZ9F6V2ST5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage accuracy, thermal resistance (500 °C/W), junction temperature range (−65 °C to +150 °C), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp voltage at ~6.2 V with specified impedance (60 Ω max at IZT = 5 mA, 100 Ω max at IZK = 0.5 mA). Its low capacitance (110 pF max at 0 V, 1 MHz) supports high-frequency noise suppression without signal distortion.
Designed for surface-mount use on FR-5 or FR-4 boards, it features 100% matte tin lead finish, MSL 1 reflow compatibility (260 °C peak), and void-free thermosetting plastic encapsulation meeting UL 94 V-0. The cathode-anode polarity is marked via band on Pin 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.06 V to 6.33 V at 5 mA - ensures stable clamping within ±2.2% tolerance for precision biasing |
| Power Dissipation PD | 250 mW at 25 °C - defines maximum continuous thermal load on standard PCB |
| Zener Impedance ZZT | 60 Ω max at IZT = 5 mA - limits voltage deviation under dynamic load changes |
| Junction Temp Range | −65 °C to +150 °C - enables operation in automotive under-hood and industrial environments |
| ESD Rating | Class 3 (>16 kV HBM) - protects against electrostatic discharge during handling and assembly |
| Capacitance C | 110 pF max at VR = 0 V, f = 1 MHz - minimizes high-frequency coupling in RF-sensitive circuits |
| Thermal Resistance RJA | 500 °C/W - determines temperature rise per watt on standard FR-5 board |
Pinout & Package
SOD-923 package: 1.00 mm × 0.60 mm body, 0.40 mm height, cathode marked by polarity band on Pin 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded) | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including engine control modules and ADAS sensors |
| Tight VZ Tolerance | ±2.2% at 5 mA enables accurate voltage reference without external trimming |
| Pb-Free & RoHS Compliant | Meets global environmental compliance requirements for consumer and industrial products |
| Low Profile Height | 0.40 mm max allows placement beneath connectors or in ultra-thin handheld assemblies |
| MSL 1 Reflow Rating | Supports single-pass lead-free reflow without moisture-induced damage |
Applications
| Smartphone Power Rail Protection | Automotive Cabin Controller Biasing |
|---|---|
Use Scenario: Clamping transient spikes on 5 V USB-powered subsystems in compact smartphone mainboards. IC Role / Device Role / Timing Role: Zener diode providing overvoltage protection and reference stabilization for PMIC feedback paths. Use Value: 6.2 V clamping threshold prevents damage to 5 V logic while 110 pF capacitance avoids interference with high-speed data lines. | Use Scenario: Generating stable 6.2 V bias for microcontroller reset circuitry in HVAC control modules. IC Role / Device Role / Timing Role: Precision voltage reference enabling reliable brown-out detection across −40 °C to +125 °C. Use Value: AEC-Q101 qualification and −65 °C to +150 °C junction range ensure functional safety in automotive thermal cycles. |
| Wearable Sensor Node Regulation | Industrial IoT Edge Gateway Clamp |
Use Scenario: Regulating supply to MEMS accelerometer analog front-end in battery-powered fitness trackers. IC Role / Device Role / Timing Role: Low-power Zener shunt regulator maintaining sensor VREF stability during battery voltage sag. Use Value: 250 mW rating and 60 Ω ZZT allow stable 6.2 V output even with 5 mA load variation from sensor sleep/wake transitions. | Use Scenario: Suppressing EFT bursts on 24 V auxiliary rails feeding isolated RS-485 transceivers in factory automation gateways. IC Role / Device Role / Timing Role: Transient voltage suppressor absorbing repetitive 1 kV/50 ns pulses per IEC 61000-4-4. Use Value: >16 kV HBM ESD rating and 100 Ω ZZK at 0.5 mA provide robust immunity without requiring additional TVS stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C6V2LT1G | Same 6.2 V nominal VZ, but 300 mW rating and SOD-523 package (0.8 × 0.6 × 0.5 mm) | Higher power margin; slightly taller profile may limit use in <0.45 mm stack-ups | Select when higher surge capability is needed and board height permits 0.5 mm height |
| MMSZ5234BT1G | 6.2 V VZ, 500 mW rating, SOD-123 package (3.7 × 1.6 × 1.1 mm) | 3× larger footprint and 2.75× greater height; not suitable for ultra-dense layouts | Choose only if thermal budget exceeds 250 mW and SOD-923 mechanical constraints do not apply |
Compared with BZX584C6V2LT1G and MMSZ5234BT1G, the SZNZ9F6V2ST5G offers the smallest footprint and lowest profile for 6.2 V regulation, with AEC-Q101 qualification making it uniquely suitable for automotive interior electronics where space and reliability are jointly constrained.
Availability
SZNZ9F6V2ST5G is available at Aetrix Electronics and suitable for smartphone power rail protection, automotive cabin controller biasing, and wearable sensor node regulation requiring stable component supply and long-term lifecycle support.
Supply support for SZNZ9F6V2ST5G 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
onsemi is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and edge applications.
The NZ9F/SZNZ9F series targets miniaturized, high-reliability voltage regulation in portable and automotive electronics, emphasizing low-profile packaging, tight parametric control, and AEC-Q101 compliance.
FAQ
What is the Zener voltage tolerance of SZNZ9F6V2ST5G at 5 mA test current?
The SZNZ9F6V2ST5G has a Zener voltage range of 6.06 V to 6.33 V at IZT = 5 mA, corresponding to a ±2.2% tolerance about the nominal 6.2 V rating. This tight tolerance is confirmed in the Electrical Characteristics table on page 3 of the onsemi datasheet and enables precise voltage clamping without external calibration.
Is SZNZ9F6V2ST5G qualified for automotive applications?
Yes, the SZNZ9F6V2ST5G carries the "SZ" prefix indicating AEC-Q101 qualification and PPAP capability. It meets stress testing requirements for automotive components, including temperature cycling, humidity bias, and mechanical shock, making it suitable for cabin controllers, body electronics, and ADAS sensor biasing circuits.
What is the maximum operating junction temperature for SZNZ9F6V2ST5G?
The SZNZ9F6V2ST5G has a junction and storage temperature range of −65 °C to +150 °C. This wide range supports operation in under-hood automotive environments and industrial settings where ambient temperatures exceed 100 °C, provided thermal design accounts for its 500 °C/W junction-to-ambient resistance.
Does SZNZ9F6V2ST5G have Pb-free and RoHS-compliant construction?
Yes, the SZNZ9F6V2ST5G is explicitly labeled as Pb-Free in the ordering information and mechanical characteristics sections of the datasheet. Its 100% matte tin lead finish and thermosetting epoxy meet RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow standards.
What is the Zener impedance of SZNZ9F6V2ST5G at knee current?
The SZNZ9F6V2ST5G has a maximum Zener impedance of 100 Ω at IZK = 0.5 mA, as specified in the Electrical Characteristics table. This value reflects dynamic resistance near the onset of breakdown and is critical for evaluating regulation performance under light-load or standby conditions.
SZNZ9F6V2ST5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 3 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-923
SZNZ9F6V2ST5G FAQ
1.How can I place an order for SZNZ9F6V2ST5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ9F6V2ST5G 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 SZNZ9F6V2ST5G reliable?
The price and inventory of SZNZ9F6V2ST5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ9F6V2ST5G is usually 5 days.
3.What payment methods are accepted for SZNZ9F6V2ST5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ9F6V2ST5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ9F6V2ST5G?
SZNZ9F6V2ST5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ9F6V2ST5G 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 SZNZ9F6V2ST5G?
For technical support, including SZNZ9F6V2ST5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ9F6V2ST5G requirements.
6.How does Aetrix verify that SZNZ9F6V2ST5G is sourced from the original manufacturer or authorized distributors?
All SZNZ9F6V2ST5G 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 SZNZ9F6V2ST5G meets industry standards.
7.What is the process for return or replacement of SZNZ9F6V2ST5G?
All SZNZ9F6V2ST5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ9F6V2ST5G, 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 SZNZ9F6V2ST5G part is unused and in its original packaging.
Return procedure for SZNZ9F6V2ST5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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