onsemi SZMM5Z10VT5G
- Part No.:
- SZMM5Z10VT5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z10VT5G.pdf
- Description:
- DIODE ZENER 10V 500MW SOD523
- Quantity:
- Payment:

- Shipping:

Inventory:7,485
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Product details
Overview
SZMM5Z10VT5G from onsemi is a 10 V ±6% Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 20 Ω maximum Zener impedance at 5 mA test current and 0.1 µA reverse leakage at 8 V, used for precision voltage regulation and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM5Z10VT5G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±6%), thermal resistance (250 °C/W), ESD rating (>16 kV HBM), AEC-Q101 qualification, and SOD-523 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference diode with sharp reverse breakdown at nominal 10 V, specified under pulsed 5 mA test current (IZT) and validated across −65 °C to +150 °C junction temperature range. Its low 0.7 mm body height and 1.20 mm × 0.80 mm outline enable integration into ultra-thin handheld devices.
The SZMM5Z10VT5G features Class 3 ESD robustness (>16 kV HBM), Pb-free matte tin lead finish, MSL 1 reflow compatibility up to 260 °C, and is qualified to AEC-Q101 for automotive applications requiring controlled change management and PPAP documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 10 V nominal, 9.4–10.6 V min/max at 5 mA - defines regulated output voltage window under standard bias |
| Power Rating | 500 mW at 25 °C, derated 4.0 mW/°C above - sets maximum continuous dissipation on FR-4 board |
| Zener Impedance | 20 Ω max at IZT = 5 mA - determines regulation stiffness and AC ripple rejection capability |
| Reverse Leakage | 0.1 µA max at VR = 8 V - ensures minimal standby current in voltage clamp configurations |
| ESD Rating | >16 kV per Human Body Model - provides robust handling and system-level ESD immunity |
| Operating Temp | −65 °C to +150 °C - supports deployment in extended-temperature industrial and automotive environments |
Pinout & Package
Package: SOD-523 (Case 502), surface-mount, 2-terminal plastic-molded package with cathode marked by polarity band; dimensions 1.20 mm × 0.80 mm × 0.70 mm; mounting position unrestricted; RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased terminal during Zener operation |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower-potential reference; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive use with site-specific control and PPAP documentation support |
| Low Profile SOD-523 | 0.7 mm height enables stacking and thin-profile designs in smartphones and wearables |
| High ESD Robustness | Class 3 HBM (>16 kV) eliminates need for external ESD protection in many I/O rail clamps |
| Pb-Free & RoHS Compliant | Matte Sn finish meets global environmental compliance without compromising solderability |
Applications
| Smartphone Power Rail Clamp | Automotive Infotainment I/O Protection |
|---|---|
Use Scenario: Clamping 3.3 V or 5 V supply rails against transient surges in LTE modem modules. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing fast-response overvoltage protection. Use Value: Prevents damage to sensitive RF transceivers and baseband ICs during ESD events or load dump transients. |
Use Scenario: Protecting CAN transceiver data lines and microcontroller GPIOs in head unit designs. IC Role / Device Role / Timing Role: Standalone Zener clamp absorbing line-induced spikes before they reach interface ICs. Use Value: Maintains signal integrity and prevents latch-up in AEC-Q100-compliant systems without adding active components. |
| USB-C Port Voltage Reference | Industrial Sensor Signal Conditioning |
Use Scenario: Providing stable 10 V reference for USB PD sink CC-line voltage detection circuits. IC Role / Device Role / Timing Role: Precision Zener element setting threshold for USB Type-C plug orientation sensing. Use Value: Enables accurate VCONN and CC logic-level discrimination within tight ±6% tolerance and low tempco (±4.5 mV/°C). |
Use Scenario: Biasing and stabilizing bridge excitation voltage in MEMS pressure sensor front-ends. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference for analog signal chain stability. Use Value: Reduces measurement drift over temperature due to 0.045 %/°C typical tempco and 20 Ω dynamic impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C10LT1G | Same 10 V nominal, ±5% tolerance; 300 mW rating; SOD-523 package; 40 Ω Zz at 5 mA | Lower power rating limits use in sustained clamp scenarios; higher Zz reduces regulation accuracy | Select when lower cost and tighter voltage tolerance outweigh power and impedance requirements |
| MMSZ5240ET1G | 10 V nominal, ±5% tolerance; SOD-123 package (2.7 × 1.4 mm); 500 mW rating; 17 Ω Zz at 20 mA | Larger footprint incompatible with ultra-dense layouts; higher test current shifts operating point | Choose when board space permits larger package and higher bias current improves thermal stability |
Compared with BZX584C10LT1G and MMSZ5240ET1G, the SZMM5Z10VT5G delivers superior regulation stiffness (20 Ω vs. 40 Ω/17 Ω), AEC-Q101 qualification for automotive use, and smallest available footprint-making it optimal for next-gen portable and safety-critical embedded systems where size, reliability, and precision are jointly constrained.
Availability
SZMM5Z10VT5G is available at Aetrix Electronics and suitable for smartphone power rail clamping, automotive infotainment I/O protection, and USB-C port voltage reference applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SZMM5Z10VT5G 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The MM5Z/SZMM5Z series was designed specifically for compact, high-reliability voltage regulation in portable and automotive electronics-emphasizing small form factor, AEC-Q101 compliance, and robust ESD performance.
FAQ
What is the Zener voltage tolerance of SZMM5Z10VT5G?
The SZMM5Z10VT5G has a Zener voltage tolerance of ±6% at 10 V nominal, meaning its reverse breakdown voltage is guaranteed between 9.4 V and 10.6 V when tested at 5 mA (IZT) and 25 °C ambient. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet (Rev. 19, April 2025). The SZMM5Z10VT5G maintains this specification across its full operating temperature range.
Is SZMM5Z10VT5G qualified for automotive applications?
Yes, SZMM5Z10VT5G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the "Specification Features" section of the onsemi datasheet. The "SZ" prefix denotes automotive-grade parts meeting unique site and control change requirements. It is rated for junction temperatures from −65 °C to +150 °C and supports reflow up to 260 °C, making SZMM5Z10VT5G suitable for under-hood and infotainment systems.
What is the maximum Zener impedance of SZMM5Z10VT5G and at what test condition?
The maximum Zener impedance (ZZT) of SZMM5Z10VT5G is 20 Ω, measured at the Zener test current IZT = 5 mA and TA = 25 °C. This value is specified in the Electrical Characteristics table on page 3 of the onsemi datasheet. Lower impedance indicates better voltage regulation under varying load conditions, and SZMM5Z10VT5G's 20 Ω rating supports stable performance in precision clamp and reference applications.
Does SZMM5Z10VT5G have ESD protection, and if so, what level?
SZMM5Z10VT5G has an ESD rating of Class 3 (>16 kV) per the Human Body Model (HBM), as documented in the "Specification Features" section of the onsemi datasheet. This high-level ESD robustness eliminates the need for additional discrete ESD protection in many I/O rail clamp designs and ensures reliable handling during automated assembly and field operation.
What is the package type and physical size of SZMM5Z10VT5G?
SZMM5Z10VT5G uses the SOD-523 (Case 502) surface-mount package, with dimensions of 1.20 mm × 0.80 mm × 0.70 mm (length × width × height). Its ultra-small outline and low profile are optimized for high-density PCBs in smartphones and wearables. The cathode is marked by a polarity band on terminal 1, and the device is Pb-free with matte tin lead finish.
SZMM5Z10VT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-523
SZMM5Z10VT5G FAQ
1.How can I place an order for SZMM5Z10VT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z10VT5G 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 SZMM5Z10VT5G reliable?
The price and inventory of SZMM5Z10VT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z10VT5G is usually 5 days.
3.What payment methods are accepted for SZMM5Z10VT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z10VT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z10VT5G?
SZMM5Z10VT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z10VT5G 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 SZMM5Z10VT5G?
For technical support, including SZMM5Z10VT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z10VT5G requirements.
6.How does Aetrix verify that SZMM5Z10VT5G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z10VT5G 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 SZMM5Z10VT5G meets industry standards.
7.What is the process for return or replacement of SZMM5Z10VT5G?
All SZMM5Z10VT5G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z10VT5G, 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 SZMM5Z10VT5G part is unused and in its original packaging.
Return procedure for SZMM5Z10VT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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