My Inquiry
My Account
onsemi SZNZ9F3V0T5G
- Part No.:
- SZNZ9F3V0T5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-923
- Datasheet:
-
SZNZ9F3V0T5G.pdf
- Description:
- DIODE ZENER 3V 250MW SOD923
- Quantity:
- Payment:
- Shipping:
Inventory:2,720
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZNZ9F3V0T5G from onsemi is an AEC-Q101-qualified Zener diode in SOD-923 package, providing 2.85 V to 3.15 V reverse breakdown voltage at 5 mA test current, 250 mW steady-state power dissipation, and 10 µA maximum reverse leakage at 1 V, used for precision voltage clamping in space-constrained portable electronics.
For engineers reviewing the SZNZ9F3V0T5G datasheet, pinout, applications, or equivalent options, key selection factors include its ±3.5 mV/°C temperature coefficient, 100 Ω max Zener impedance at IZT, 16 kV HBM ESD rating, SOD-923 footprint compatibility, and automotive-grade qualification status.
Technical Context
This device operates as a two-terminal voltage reference and transient clamp, with specified Zener voltage tolerance (±5% at 25 °C), defined thermal derating (2.0 mW/°C above 25 °C), and junction-to-ambient thermal resistance of 500 °C/W on FR-5 board.
It exhibits low capacitance (210 pF at 0 V, 1 MHz), forward voltage ≤0.9 V at 10 mA, and operates across −65 °C to +150 °C junction temperature range while maintaining stable regulation under pulsed or DC bias conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.85 V min to 3.15 V max @ IZT = 5 mA - defines clamping threshold in overvoltage protection circuits |
| Power Dissipation (PD) | 250 mW @ TA = 25 °C - sets maximum continuous power handling on standard PCB |
| Zener Impedance (ZZT) | ≤100 Ω @ IZT = 5 mA - ensures minimal voltage shift under load variation |
| Reverse Leakage (IR) | ≤10 µA @ VR = 1 V - guarantees low standby current in battery-powered systems |
| ESD Rating | Class 3 (>16 kV) per HBM - enables direct integration into handheld interfaces without external ESD protection |
| Temperature Coefficient | −3.5 mV/°C - quantifies voltage drift with ambient temperature change for stability analysis |
| Package | SOD-923 (1.00 mm × 0.60 mm × 0.40 mm) - supports high-density layout in mobile and wearable PCBs |
Pinout & Package
SOD-923 surface-mount package with molded thermosetting plastic case, matte tin lead finish, MSL 1 rating, and qualified reflow up to 260 °C. Body dimensions: 1.00 mm × 0.60 mm × 0.40 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked Band) | Cathode | Connected to regulated output node; polarity band identifies cathode for correct orientation during placement |
| 2 | Anode | Connected to ground or lower-potential rail; completes Zener conduction path during reverse-bias operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including infotainment and body control modules requiring reliability under thermal cycling and vibration |
| Pb-Free, Halogen-Free | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 1 moisture sensitivity requirements |
| Low Profile Height | 0.40 mm max height enables use under mechanical shields and in ultra-thin assemblies such as smartwatches |
| High ESD Robustness | 16 kV HBM rating eliminates need for discrete TVS in many USB, SIM, and SD card interface protection designs |
| Stable Low-Voltage Regulation | Narrow 2.85–3.15 V range at 5 mA supports precise 3.0 V rail clamping in modern low-voltage microcontroller I/O protection |
Applications
| USB Interface Protection | Smartphone Power Rail Clamp |
|---|---|
|
Use Scenario: Clamping transient spikes on USB D+ and D− lines during hot-plug events or ESD discharge. IC Role / Device Role / Timing Role: Two-terminal shunt regulator absorbing surge energy before it reaches USB transceiver ICs. Use Value: Prevents latch-up or damage to 3.3 V tolerant PHYs using only 0.6 mm² PCB area and no additional bias circuitry. |
Use Scenario: Protecting application processor I/O pins from overvoltage during battery charging or PMIC fault conditions. IC Role / Device Role / Timing Role: Standby-mode voltage clamp placed directly at SoC ball-out to limit voltage excursion to ≤3.15 V. Use Value: Enables compliance with JEDEC JS-001-2017 Level 3A (8 kV contact) without increasing BOM count or layout complexity. |
| Automotive Infotainment Display Bias | Wearable Sensor Module Reference |
|
Use Scenario: Stabilizing bias voltage for OLED display driver ICs in dashboard clusters exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Precision Zener reference establishing stable 3.0 V reference for gamma correction DACs. Use Value: Maintains <±15 mV regulation error across −40 °C to +105 °C due to known −3.5 mV/°C TC and AEC-Q101 validation. |
Use Scenario: Providing repeatable 3.0 V clamp for MEMS accelerometer and gyroscope analog front-end inputs. IC Role / Device Role / Timing Role: Low-leakage (<10 µA) shunt element ensuring sensor ADC reference remains within spec during sleep mode. Use Value: Extends coin-cell battery life beyond 12 months by minimizing quiescent current while preserving signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C3V0LT1G | Same 3.0 V nominal Zener voltage but ±5% tolerance, 300 mW PD, SOD-523 package (1.3 mm × 0.85 mm) | Larger footprint and higher power rating; not AEC-Q101 qualified | Select when higher power margin is required and automotive qualification is unnecessary |
| MMSZ4684T1G | 3.3 V nominal Zener, ±5% tolerance, 500 mW PD, SOD-123 package (3.7 mm × 1.6 mm) | Higher voltage, larger size, higher power; lacks AEC-Q101 and HBM >16 kV rating | Choose only if 3.3 V clamping is acceptable and board space allows larger SOD-123 footprint |
Compared with BZX584C3V0LT1G and MMSZ4684T1G, the SZNZ9F3V0T5G offers the smallest PCB footprint, automotive qualification, and highest ESD robustness-making it uniquely suitable for next-generation compact, safety-critical portable and automotive subsystems where space, reliability, and surge immunity are co-constrained.
Availability
SZNZ9F3V0T5G is available at Aetrix Electronics and suitable for smartphone I/O protection, automotive display biasing, and wearable sensor reference applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SZNZ9F3V0T5G 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, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NZ9F/SZNZ9F series was designed specifically for space-constrained, high-reliability voltage regulation in portable and automotive electronics, emphasizing miniaturization, ESD resilience, and AEC-Q101 compliance.
FAQ
What is the Zener voltage tolerance of the SZNZ9F3V0T5G?
The SZNZ9F3V0T5G has a Zener voltage range of 2.85 V to 3.15 V at IZT = 5 mA and TA = 25 °C, corresponding to ±5% tolerance around the nominal 3.0 V rating. This tolerance is guaranteed across production lots and verified per onsemi's AEC-Q101 qualification testing protocol for the SZNZ9F3V0T5G.
Is the SZNZ9F3V0T5G suitable for automotive applications?
Yes, the SZNZ9F3V0T5G is AEC-Q101 qualified and PPAP capable, with full traceability, process control, and stress testing per automotive reliability standards. Its SZNZ prefix explicitly denotes automotive-grade manufacturing site and change control, making the SZNZ9F3V0T5G appropriate for infotainment, ADAS sensor interfaces, and body electronics.
What is the maximum operating temperature for the SZNZ9F3V0T5G?
The SZNZ9F3V0T5G supports a junction and storage temperature range of −65 °C to +150 °C. Its thermal resistance (RJA) is 500 °C/W on FR-5 board, and power must be derated linearly at 2.0 mW/°C above 25 °C ambient-ensuring safe operation in under-hood or enclosed portable environments where the SZNZ9F3V0T5G is deployed.
Does the SZNZ9F3V0T5G have a specified forward voltage?
Yes, the SZNZ9F3V0T5G has a maximum forward voltage (VF) of 0.9 V at IF = 10 mA, as confirmed in the Electrical Characteristics table of the official onsemi datasheet. This parameter is critical when evaluating the SZNZ9F3V0T5G for bidirectional ESD protection or dual-purpose clamp-and-rectifier configurations.
How is polarity identified on the SZNZ9F3V0T5G package?
The SZNZ9F3V0T5G uses Style 1 marking per the SOD-923 mechanical drawing: Pin 1 (cathode) is identified by a polarity band on the top surface of the package. The band aligns with terminal 1 in the SOD-923 outline, and the unmarked terminal is the anode-this marking convention is consistent across all SZNZ9FxxxT5G devices and verified in the device marking diagram for the SZNZ9F3V0T5G.
SZNZ9F3V0T5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-923
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 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
SZNZ9F3V0T5G FAQ
1.How can I place an order for SZNZ9F3V0T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNZ9F3V0T5G 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 SZNZ9F3V0T5G reliable?
The price and inventory of SZNZ9F3V0T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNZ9F3V0T5G is usually 5 days.
3.What payment methods are accepted for SZNZ9F3V0T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNZ9F3V0T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNZ9F3V0T5G?
SZNZ9F3V0T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNZ9F3V0T5G 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 SZNZ9F3V0T5G?
For technical support, including SZNZ9F3V0T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNZ9F3V0T5G requirements.
6.How does Aetrix verify that SZNZ9F3V0T5G is sourced from the original manufacturer or authorized distributors?
All SZNZ9F3V0T5G 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 SZNZ9F3V0T5G meets industry standards.
7.What is the process for return or replacement of SZNZ9F3V0T5G?
All SZNZ9F3V0T5G units undergo pre-shipment inspection (PSI). If there is an issue with SZNZ9F3V0T5G, 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 SZNZ9F3V0T5G part is unused and in its original packaging.
Return procedure for SZNZ9F3V0T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZNZ9F3V0T5G Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
