My Inquiry
My Account
onsemi SZMM3Z10VST1G
- Part No.:
- SZMM3Z10VST1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZMM3Z10VST1G.pdf
- Description:
- DIODE ZENER 10V 300MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:111,044
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZMM3Z10VST1G from onsemi is a 10 V ±2% tolerance Zener diode in SOD−323 package, rated for 500 mW steady-state power dissipation, with 160 Ω max dynamic impedance at 5 mA test current and 0.5 μA max reverse leakage at 6 V, used for precision voltage reference and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM3Z10VST1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±2%), thermal resistance (250 °C/W on optimized PCB), AEC−Q101 qualification, Pb−free RoHS compliance, and SOD−323 footprint compatibility with high-density layouts.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp or regulate voltage at nominal 10.0 V with tight ±2% initial tolerance. Its low 0.9 V forward voltage at 10 mA enables bidirectional ESD protection when paired with series resistors.
Designed for surface-mount use on FR−4 boards with either standard (300 mW) or enhanced heatsinking (500 mW) layouts, it delivers stable regulation across −65 °C to +150 °C junction temperature range and supports Class 3 HBM ESD immunity (>16 kV).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.80–10.20 V at 5 mA - ensures precise 10 V regulation with ±2% tolerance for reference and clamping |
| Power Dissipation (PD) | 500 mW with 0.72 mm² pad + 38 mm² copper heatsink - supports higher continuous operation than standard FR−4 layout |
| Zener Impedance (ZZT) | 160 Ω max at IZT = 5 mA - maintains low AC impedance for stable regulation under varying load |
| Reverse Leakage (IR) | 0.5 μA max at VR = 6 V - minimizes standby current in battery-powered systems |
| Capacitance (C) | 130 pF max at VR = 0, f = 1 MHz - limits high-frequency signal coupling in RF-adjacent circuits |
| ESD Rating | Class 3 (>16 kV) per HBM - provides robust handling without external protection in assembly |
| Package | SOD−323 (1.7 × 1.25 × 0.85 mm) - enables placement in ultra-dense mobile PCBs with 0.9 mm profile |
Pinout & Package
SOD−323 surface-mount package with cathode indicated by polarity band; body dimensions 1.70 mm × 1.25 mm × 0.85 mm; mounting position unrestricted; Pb−free Sn plating on leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output or protected node; reverse-biased during Zener operation |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; defines polarity for correct biasing |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener voltage tolerance | ±2% at 10 V enables accurate voltage referencing without post-calibration in consumer power rails |
| AEC−Q101 qualification | Validated for automotive subsystems requiring extended temperature and reliability compliance |
| Low-profile SOD−323 package | 0.85 mm height allows stacking under shields or placement near connectors in slim handheld devices |
| High ESD immunity | Class 3 HBM (>16 kV) eliminates need for discrete ESD diodes in many I/O protection designs |
| Pb−free, RoHS-compliant | Meets global environmental regulations and supports lead-free reflow soldering at 260 °C for 10 s |
Applications
| Smartphone Power Management | Automotive Infotainment USB Port |
|---|---|
Use Scenario: Regulating 10 V bias for camera module LDO input in compact smartphone mainboard. IC Role / Device Role / Timing Role: Precision shunt reference providing stable 10 V reference for PMIC feedback loop. Use Value: ±2% VZ tolerance ensures LDO output stays within 3.3 V ±1% spec despite input variation and temperature drift. | Use Scenario: Overvoltage clamping on 5 V USB VBUS line in vehicle head unit with transient surge exposure. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting >6 V transients to ground before downstream USB controller damage. Use Value: 160 Ω ZZT and 0.5 μA IR ensure minimal loading during normal operation while triggering reliably at 10.2 V. |
| Wearable Sensor Node Reference | Industrial PLC Analog Input Protection |
Use Scenario: Providing 10 V reference for 16-bit ADC in battery-powered health monitor with strict size constraints. IC Role / Device Role / Timing Role: Low-drift voltage reference stabilizing ADC full-scale range against supply ripple. Use Value: 4.5 mV/°C tempco and 130 pF capacitance avoid gain error and noise coupling in high-resolution measurements. | Use Scenario: Protecting 0–10 V analog input channel from field-wiring faults and lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt clamp limiting input voltage to 10.2 V before op-amp front-end stage. Use Value: AEC−Q101 qualification and −65 °C to +150 °C TJ rating ensure reliability in uncontrolled industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B10,115 | Same 10 V nominal, ±2% tolerance, but SOD-323 package with 300 mW rating and 200 Ω ZZT | Lacks AEC−Q101 qualification and has higher dynamic impedance | Preferred for cost-sensitive non-automotive consumer designs where 500 mW derating margin is not required |
| MMSZ5240BT1G | 10 V nominal, ±5% tolerance, SOD-123 package (2.7 × 1.4 × 1.0 mm), 500 mW rating, 170 Ω ZZT | Larger footprint and looser tolerance; no AEC−Q101 or Class 3 ESD rating | Used where board space permits larger package and ±5% regulation accuracy is acceptable |
Compared with BZX384-B10,115 and MMSZ5240BT1G, SZMM3Z10VST1G offers tighter tolerance, higher power capability on heatsinked layouts, AEC−Q101 qualification, and superior ESD robustness - making it optimal for automotive and premium portable designs demanding precision and reliability.
Availability
SZMM3Z10VST1G is available at Aetrix Electronics and suitable for smartphone power management, automotive infotainment protection, and wearable sensor reference applications requiring stable component supply, long-term lifecycle support, and AEC−Q101-compliant sourcing.
Supply support for SZMM3Z10VST1G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MM3ZxxxST1G/SZMM3ZxxxST1G series was developed to deliver high-precision, space-saving Zener regulation for portable and automotive electronics where tight voltage tolerance, small footprint, and reliability under harsh conditions are critical.
FAQ
What is the exact Zener voltage range for SZMM3Z10VST1G at 25°C?
The SZMM3Z10VST1G has a guaranteed Zener voltage range of 9.80 V to 10.20 V at test current IZT = 5 mA and ambient temperature 25°C, corresponding to ±2% tolerance around the nominal 10 V rating. This specification is verified per onsemi's published Electrical Characteristics table and applies to all units shipped under this part number.
Is SZMM3Z10VST1G qualified for automotive applications?
Yes, SZMM3Z10VST1G is AEC−Q101 qualified and PPAP capable, as explicitly stated in the onsemi datasheet. The "SZ" prefix denotes devices meeting automotive-specific site and control change requirements, including extended temperature operation (−65 °C to +150 °C) and rigorous reliability testing beyond standard commercial grades.
What is the maximum power dissipation of SZMM3Z10VST1G under typical PCB conditions?
SZMM3Z10VST1G supports up to 500 mW steady-state power dissipation when mounted on an FR−4 board with a 0.72 mm² pad and 38 mm² (1 in²) copper heatsink, per Note 2 in the Maximum Ratings table. On standard single-sided FR−4 (1 cm²), its rating drops to 300 mW with 2.4 mW/°C derating above 25°C.
Does SZMM3Z10VST1G have a specified temperature coefficient?
Yes, the SZMM3Z10VST1G has a maximum temperature coefficient of +4.5 mV/°C at IZT = 5 mA, as listed in the Electrical Characteristics table. This value quantifies how much the Zener voltage shifts per degree Celsius change in junction temperature, critical for stability in wide-temperature-range applications.
What packaging format is supplied for SZMM3Z10VST1G?
SZMM3Z10VST1G is supplied in tape-and-reel format with 3,000 units per reel, consistent with the SOD−323 package variant designated by the "ST1G" suffix. The reel complies with standard EIA-481 specifications and includes orientation guidance for automated pick-and-place equipment.
SZMM3Z10VST1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- -
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
SZMM3Z10VST1G FAQ
1.How can I place an order for SZMM3Z10VST1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM3Z10VST1G 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 SZMM3Z10VST1G reliable?
The price and inventory of SZMM3Z10VST1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM3Z10VST1G is usually 5 days.
3.What payment methods are accepted for SZMM3Z10VST1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM3Z10VST1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM3Z10VST1G?
SZMM3Z10VST1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM3Z10VST1G 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 SZMM3Z10VST1G?
For technical support, including SZMM3Z10VST1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM3Z10VST1G requirements.
6.How does Aetrix verify that SZMM3Z10VST1G is sourced from the original manufacturer or authorized distributors?
All SZMM3Z10VST1G 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 SZMM3Z10VST1G meets industry standards.
7.What is the process for return or replacement of SZMM3Z10VST1G?
All SZMM3Z10VST1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM3Z10VST1G, 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 SZMM3Z10VST1G part is unused and in its original packaging.
Return procedure for SZMM3Z10VST1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMM3Z10VST1G 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…
