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onsemi SZMM5Z2V7T5G
- Part No.:
- SZMM5Z2V7T5G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z2V7T5G.pdf
- Description:
- DIODE ZENER 2.7V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:7,475
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Product details
Overview
SZMM5Z2V7T5G from onsemi is a 2.7 V ±0.2 V Zener diode in SOD-523 package, rated for 500 mW steady-state power dissipation at 25 °C, with 100 Ω maximum Zener impedance at 2 mA test current and 20 μA reverse leakage at 1 V, used for precision voltage clamping in space-constrained portable electronics.
For engineers reviewing the SZMM5Z2V7T5G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal derating behavior, SOD-523 mechanical dimensions, and direct automotive-grade alternatives - all confirmed from onsemi's official MM5ZxxxT1G/SZMM5ZxxxT1G series documentation.
Technical Context
This device operates as a two-terminal voltage reference diode with sharp reverse breakdown at nominal 2.7 V, specified under pulsed test conditions (IZT = 2 mA) to minimize self-heating effects. Its −3.5 mV/°C temperature coefficient ensures predictable drift across −65 °C to +150 °C junction range.
The SOD-523 package enables high-density PCB placement with 1.20 mm × 0.80 mm footprint and 0.7 mm body height. It achieves Class 3 ESD robustness (>16 kV HBM) and meets MSL 1 reflow requirements up to 260 °C, supporting automated assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, 2.5–2.9 V min/max at IZT = 2 mA - defines precise clamping threshold for low-voltage rail protection |
| Power Dissipation (PD) | 500 mW at TA = 25 °C, derated 4.0 mW/°C above - sets maximum continuous power handling on FR-4 board |
| Zener Impedance (ZZT) | ≤100 Ω at IZT = 2 mA - ensures stable regulation under dynamic load transients |
| Reverse Leakage (IR) | ≤20 μA at VR = 1 V - guarantees minimal standby current in battery-powered systems |
| ESD Rating | Class 3 (>16 kV HBM) - provides robust electrostatic immunity without external protection circuitry |
| Temperature Coefficient | −3.5 mV/°C - enables accurate thermal drift modeling in wide-temperature environments |
| Junction Temp Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial edge nodes |
Pinout & Package
SOD-523 surface-mount package: 1.20 mm × 0.80 mm body outline, 0.7 mm max height, matte tin lead finish, void-free thermosetting plastic case meeting UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Marked end (band); connects to regulated voltage node or higher-potential rail during clamping |
| 2 | Anode | Unmarked end; ties to ground or lower-potential reference point in shunt regulator configuration |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 Qualified | Validated for automotive applications including engine control modules and infotainment power rails |
| Pb-Free & RoHS Compliant | Meets global environmental compliance mandates without compromising solderability or reliability |
| Low Capacitance (450 pF) | Minimizes signal distortion in high-frequency analog sensing paths near regulated nodes |
| Small Outline (SOD-523) | Enables placement adjacent to ICs on dense mobile PCBs where board area is constrained to <1 mm² |
| MSL 1 Rating | Allows indefinite dry storage and single-reflow processing without baking or special handling |
Applications
| Smartphone Power Rail Clamping | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 3.3 V I/O pins of application processors from ESD and overvoltage events during hot-plug USB or SIM card insertion. IC Role / Device Role / Timing Role: Shunt-clamping Zener diode placed between I/O line and ground, conducting only when transient exceeds 2.9 V. Use Value: Prevents latch-up and permanent damage using 2.7 V regulation with ≤100 Ω dynamic impedance to limit peak clamping voltage. |
Use Scenario: Stabilizing 5 V supply to microcontroller reset circuitry in door module ECUs exposed to load-dump transients. IC Role / Device Role / Timing Role: Low-leakage (≤20 μA) voltage reference that maintains valid reset logic level despite battery voltage fluctuations. Use Value: Ensures reliable MCU reset assertion across −40 °C to +125 °C ambient, supported by AEC-Q101 qualification and −65 °C to +150 °C TJ range. |
| Wearable Sensor Node Reference | Industrial PLC Input Protection |
|
Use Scenario: Providing stable 2.7 V bias for MEMS accelerometer analog front-end in hearable devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Precision voltage reference with −3.5 mV/°C TC, minimizing offset drift across operating temperature. Use Value: Enables sub-1% full-scale error in sensor output over 0–60 °C, critical for medical-grade motion detection accuracy. |
Use Scenario: Protecting 24 V digital input channels from field-wiring induced surges in factory automation controllers. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage TVS+Zener protection network, absorbing fast transients before downstream TVS triggers. Use Value: Delivers 500 mW steady-state dissipation and 16 kV HBM ESD rating to extend system uptime in electrically noisy plant-floor 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 |
|---|---|---|---|
| MM5Z2V7T5G | No AEC-Q101 qualification; same electrical specs and SOD-523 package; non-automotive grade marking | Limited to consumer/portable electronics; not approved for automotive PPAP or ASIL-B systems | Select when cost sensitivity outweighs automotive compliance requirements and no PPAP submission is needed |
| SZMM5Z2V7T1G | Identical electrical and thermal specs; differs only in tape-and-reel quantity (3,000 vs. 8,000 units per reel) | No functional difference; choice driven by production volume planning and inventory turnover needs | Select for low-volume prototyping or small-batch builds where smaller reels reduce WIP and shelf-life risk |
Compared with MM5Z2V7T5G, SZMM5Z2V7T5G adds AEC-Q101 validation and PPAP capability for automotive use, while SZMM5Z2V7T1G offers identical performance in smaller packaging increments - enabling optimized procurement strategy across design phases and volume tiers.
Availability
SZMM5Z2V7T5G is available at Aetrix Electronics and suitable for smartphone power rail clamping, automotive body control modules, and wearable sensor node reference applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SZMM5Z2V7T5G 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.
SZMM5Z2V7T5G belongs to the MM5ZxxxT1G/SZMM5ZxxxT1G Zener regulator family, engineered for ultra-compact voltage reference and transient suppression in space- and power-constrained electronic systems.
FAQ
What is the Zener voltage tolerance of SZMM5Z2V7T5G?
The SZMM5Z2V7T5G has a nominal Zener voltage of 2.7 V with a tolerance of ±0.2 V, meaning its guaranteed breakdown voltage falls between 2.5 V and 2.9 V when tested at IZT = 2 mA and TA = 25 °C. This tight tolerance supports accurate voltage clamping in low-voltage digital interfaces where margin is limited.
Is SZMM5Z2V7T5G qualified for automotive applications?
Yes, SZMM5Z2V7T5G is AEC-Q101 qualified and PPAP capable, making it suitable for automotive applications such as body control modules, infotainment power supplies, and ADAS sensor interfaces. The "SZ" prefix explicitly denotes compliance with automotive-specific site and process controls required by Tier 1 suppliers.
What is the maximum power dissipation for SZMM5Z2V7T5G at 85 °C ambient?
At 85 °C ambient temperature, SZMM5Z2V7T5G's maximum power dissipation is 260 mW. This is calculated from its 500 mW rating at 25 °C and 4.0 mW/°C linear derating: 500 mW − (85 − 25) × 4.0 mW = 260 mW. Derating must be applied on FR-4 boards with 1 cm² copper pad per the datasheet's test condition.
Does SZMM5Z2V7T5G have a defined polarity marking?
Yes, SZMM5Z2V7T5G uses Style 1 marking in the SOD-523 package: Pin 1 is the cathode and is identified by a polarity band (marking bar) on the device body. Pin 2 is the anode and remains unmarked. This polarity must be observed during PCB layout to ensure correct shunt regulation behavior.
What is the reverse leakage current specification for SZMM5Z2V7T5G?
SZMM5Z2V7T5G specifies a maximum reverse leakage current (IR) of 20 μA at VR = 1 V and TA = 25 °C. This low leakage supports energy-sensitive applications like coin-cell-powered wearables, where quiescent current directly impacts battery life and system wake-up integrity.
SZMM5Z2V7T5G 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):
- 2.7 V
- Tolerance:
- ±7.41%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 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-523
SZMM5Z2V7T5G FAQ
1.How can I place an order for SZMM5Z2V7T5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z2V7T5G 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 SZMM5Z2V7T5G reliable?
The price and inventory of SZMM5Z2V7T5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z2V7T5G is usually 5 days.
3.What payment methods are accepted for SZMM5Z2V7T5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z2V7T5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z2V7T5G?
SZMM5Z2V7T5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z2V7T5G 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 SZMM5Z2V7T5G?
For technical support, including SZMM5Z2V7T5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z2V7T5G requirements.
6.How does Aetrix verify that SZMM5Z2V7T5G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z2V7T5G 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 SZMM5Z2V7T5G meets industry standards.
7.What is the process for return or replacement of SZMM5Z2V7T5G?
All SZMM5Z2V7T5G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z2V7T5G, 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 SZMM5Z2V7T5G part is unused and in its original packaging.
Return procedure for SZMM5Z2V7T5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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