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onsemi SZMM5Z11VT1G
- Part No.:
- SZMM5Z11VT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z11VT1G.pdf
- Description:
- DIODE ZENER 11V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:1,330
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Product details
Overview
SZMM5Z11VT1G from onsemi is a 11 V ±5% 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 8.0 V, used for precision voltage clamping and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM5Z11VT1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), 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 11 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 mobile handsets and wearables.
The SZ prefix denotes automotive-grade qualification per AEC-Q101, including PPAP capability and site-specific process controls, while the "G" suffix confirms Pb-free construction and RoHS compliance. It exhibits a positive temperature coefficient of +5.4 mV/°C near nominal Zener voltage, supporting stable regulation under thermal drift conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.0 V nominal, 10.4–11.6 V min–max at IZT = 5 mA - defines precise clamping threshold for supply rail protection |
| Power Dissipation (PD) | 500 mW at TA = 25 °C, derated 4.0 mW/°C above - sets maximum continuous energy handling on FR-4 board |
| Zener Impedance (ZZT) | 20 Ω max at IZT = 5 mA - ensures minimal voltage deviation under dynamic load transients |
| Reverse Leakage (IR) | 0.1 μA max at VR = 8.0 V - guarantees negligible standby current in battery-powered systems |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - provides robust electrostatic immunity without external protection |
| Package | SOD-523 (Case 502, Style 1) - 1.20 mm × 0.80 mm × 0.70 mm footprint ideal for 0201-class board real estate |
| Temperature Coefficient | +5.4 mV/°C at IZT - enables predictable voltage shift across operating temperature range |
Pinout & Package
SOD-523 surface-mount package with molded thermosetting plastic case (UL 94 V-0), matte tin lead finish, MSL 1 rating, and qualified reflow up to 260 °C. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output or higher-potential node; polarity band identifies cathode for correct orientation during placement |
| 2 | Anode | Connected to ground or lower-potential reference; completes reverse-biased conduction path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including engine control modules and infotainment power rails |
| 16 kV HBM ESD Robustness | Eliminates need for discrete ESD suppressors in handheld interface circuits |
| 0.7 mm Low Profile | Enables stacking under mechanical shields and compatibility with thin-profile flex PCB assemblies |
| Pb-Free & RoHS Compliant | Meets global environmental regulations without compromising solder joint reliability or thermal performance |
| 500 mW Power Rating | Supports transient suppression in 3.3 V–12 V logic and analog supply domains without thermal runaway |
Applications
| Smartphone Power Management | Automotive Infotainment USB Port |
|---|---|
|
Use Scenario: Clamping 5 V USB VBUS line against ESD strikes and load dump transients in compact smartphone PMIC subsystems. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing fast-response overvoltage protection without control logic or external bias. Use Value: Prevents damage to USB PHY ICs by limiting VBUS to ≤11.6 V during 8 kV contact discharge, leveraging 16 kV HBM rating and 20 Ω ZZT. |
Use Scenario: Protecting USB data lines and 5 V power rails in automotive head unit USB ports exposed to ISO 10605 pulses. IC Role / Device Role / Timing Role: AEC-Q101-qualified Zener clamp placed directly at connector entry point to absorb fast-rising transients. Use Value: Maintains signal integrity and prevents latch-up in USB transceivers by holding rail voltage within 11.6 V during 15 kV air discharge events. |
| Wearable Sensor Node Supply | Industrial IoT Edge Controller |
|
Use Scenario: Regulating 3.3 V LDO output in coin-cell–powered fitness trackers where board area is limited to <10 mm². IC Role / Device Role / Timing Role: Precision voltage reference and overvoltage limiter for microcontroller reset circuitry and ADC reference buffers. Use Value: Delivers ±5% VZ accuracy and 0.1 μA leakage to extend battery life beyond 12 months while occupying only 0.96 mm² PCB area. |
Use Scenario: Stabilizing 12 V auxiliary supply in DIN-rail mounted PLC I/O modules subject to industrial surge environments. IC Role / Device Role / Timing Role: Secondary clamping element downstream of TVS diodes to fine-tune voltage ceiling and reduce stress on primary protectors. Use Value: Reduces peak clamping voltage from 15 V to 11.6 V, lowering power dissipation in upstream TVS and improving long-term reliability under repetitive surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C11LT1G | Same 11 V nominal, ±5% tolerance, but SOD-323 package (1.7 mm × 1.3 mm); 350 mW PD; 40 Ω ZZT | Larger footprint and lower power rating limit use in ultra-dense layouts and higher-energy transients | Select when legacy SOD-323 land pattern exists and 500 mW rating is not required |
| MMSZ5240BT1G | 10 V nominal, ±5%, SOD-123 package (3.7 mm × 1.6 mm); 500 mW; 17 Ω ZZT; no AEC-Q101 qualification | Non-automotive grade; larger size precludes use in smartphones or wearables | Choose for cost-sensitive industrial power supplies where AEC-Q101 and miniaturization are not mandatory |
Compared with BZX584C11LT1G and MMSZ5240BT1G, the SZMM5Z11VT1G uniquely combines AEC-Q101 qualification, SOD-523 miniaturization, and 500 mW power handling-making it the only option for automotive or portable designs demanding all three attributes simultaneously.
Availability
SZMM5Z11VT1G is available at Aetrix Electronics and suitable for smartphone power management, automotive infotainment USB protection, and wearable sensor node supply requiring stable component supply, consistent AEC-Q101 compliance, and verified SOD-523 packaging.
Supply support for SZMM5Z11VT1G 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 MM5Z/SZMM5Z series was designed specifically for ultra-compact voltage regulation and transient suppression in portable and automotive electronics, prioritizing miniaturization, high-reliability qualification, and low-leakage performance.
FAQ
What is the Zener voltage tolerance of SZMM5Z11VT1G?
The SZMM5Z11VT1G has a nominal Zener voltage of 11.0 V with a tolerance of ±5%, meaning the actual measured voltage falls between 10.4 V and 11.6 V when tested at IZT = 5 mA and TA = 25 °C. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet, and applies to all units shipped under this part number.
Is SZMM5Z11VT1G qualified for automotive applications?
Yes, SZMM5Z11VT1G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the datasheet's Specification Features section. The "SZ" prefix denotes automotive-grade manufacturing controls, including unique site and process change requirements, making SZMM5Z11VT1G suitable for under-hood and cabin electronics where reliability under thermal and vibration stress is critical.
What is the maximum power dissipation for SZMM5Z11VT1G on a standard PCB?
SZMM5Z11VT1G delivers 500 mW steady-state power dissipation on an FR-4 board with a single-sided 1 cm² copper pad at 25 °C ambient, with linear derating of 4.0 mW/°C above that temperature. This value is defined in the Maximum Ratings table and validated per JEDEC JESD51-3 standards using the specified mounting condition.
Does SZMM5Z11VT1G have ESD protection built-in?
Yes, SZMM5Z11VT1G is rated Class 3 for Human Body Model ESD with >16 kV withstand capability, as documented in the Specification Features section. This intrinsic ESD robustness eliminates the need for additional external ESD protection components in many portable and automotive interface applications.
What is the thermal resistance from junction to ambient for SZMM5Z11VT1G?
The thermal resistance (RJA) of SZMM5Z11VT1G is 250 °C/W under the defined test condition: FR-4 board, single-sided copper, 1 cm² mounting pad. This value is specified in the Maximum Ratings table and directly impacts safe operating area calculations when designing for continuous or pulsed power dissipation.
SZMM5Z11VT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- SZMM5ZxxxT1G
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5.45%
- 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
SZMM5Z11VT1G FAQ
1.How can I place an order for SZMM5Z11VT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z11VT1G 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 SZMM5Z11VT1G reliable?
The price and inventory of SZMM5Z11VT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z11VT1G is usually 5 days.
3.What payment methods are accepted for SZMM5Z11VT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z11VT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z11VT1G?
SZMM5Z11VT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z11VT1G 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 SZMM5Z11VT1G?
For technical support, including SZMM5Z11VT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z11VT1G requirements.
6.How does Aetrix verify that SZMM5Z11VT1G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z11VT1G 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 SZMM5Z11VT1G meets industry standards.
7.What is the process for return or replacement of SZMM5Z11VT1G?
All SZMM5Z11VT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z11VT1G, 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 SZMM5Z11VT1G part is unused and in its original packaging.
Return procedure for SZMM5Z11VT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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