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onsemi SZMM5Z4711T1G
- Part No.:
- SZMM5Z4711T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
SZMM5Z4711T1G.pdf
- Description:
- DIODE ZENER 27V 500MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
SZMM5Z4711T1G from onsemi is a 27 V ±5% Zener voltage regulator diode in SOD−523 package, rated for 500 mW power dissipation at 75°C, with 50 µA test current (IZT), 20.4 V reverse voltage (VR) at 1 µA leakage, and ESD rating >16 kV (HBM). It provides precision voltage reference and overvoltage protection in space-constrained portable electronics.
For engineers reviewing the SZMM5Z4711T1G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance, thermal derating behavior, low-leakage performance at VR = 20.4 V, and AEC−Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output by conducting reverse current above its specified Zener breakdown threshold. Its 27 V nominal Zener voltage exhibits a positive temperature coefficient near zero crossing, minimizing drift across −55°C to +150°C junction range.
The SOD−523 package enables high-density PCB placement with minimal footprint (1.20 × 0.80 × 0.60 mm), while its Pb−Free, RoHS-compliant construction supports lead-free reflow profiles up to 260°C for 10 seconds. The cathode band marking ensures unambiguous polarity during automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.65 V min / 27 V nom / 28.35 V max @ IZT = 50 µA - defines regulation window under standard test conditions |
| Power Dissipation (PD) | 500 mW @ TL = 75°C, derated 4.0 mW/°C above - sets maximum continuous thermal load on FR−5 board |
| Reverse Leakage (IR) | ≤1 µA @ VR = 20.4 V - ensures minimal standby current in voltage-sense or clamping circuits |
| Junction Temp Range | −55°C to +150°C - supports operation in under-hood automotive and industrial environments |
| ESD Rating (HBM) | >16 kV - protects against electrostatic discharge during handling and board-level integration |
| AEC−Q101 Qualified | Yes - confirms stress-tested reliability for automotive electronic control units and infotainment systems |
Pinout & Package
SZMM5Z4711T1G uses the SOD−523 surface-mount package (Case 502, Style 1), measuring 1.20 × 0.80 × 0.60 mm, with cathode identified by a polarity band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-biased terminal where Zener breakdown occurs |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower-potential reference; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| 500 mW Power Rating on FR−5 Board | Enables robust voltage clamping in compact handheld devices without external heatsinking |
| Low Reverse Current (IZT = 50 µA) | Allows accurate Zener voltage measurement and stable regulation at ultra-low bias currents |
| ESD Rating Class 3 (>16 kV HBM) | Reduces risk of field failure due to handling or system-level ESD events in consumer and automotive assemblies |
| SZ Prefix & AEC−Q101 Qualification | Confirms automotive-grade traceability, process control, and stress-test compliance per PPAP requirements |
| Pb−Free and RoHS Compliant | Meets global environmental regulations and supports lead-free reflow soldering up to 260°C |
Applications
| Automotive Infotainment Power Rails | Portable Medical Sensor Reference |
|---|---|
Use Scenario: Stabilizing 27 V supply rail for display backlight drivers and audio amplifiers in vehicle head units. IC Role / Device Role / Timing Role: Shunt voltage regulator providing overvoltage clamping and reference stability during load dump transients. Use Value: Maintains <±5% regulation accuracy across −40°C to +105°C ambient, meeting ISO 7637-2 pulse 5a immunity requirements. |
Use Scenario: Generating precise 27 V bias for analog front-end op-amps in battery-powered glucose monitors. IC Role / Device Role / Timing Role: Low-leakage voltage reference ensuring ADC input scaling accuracy and long battery life. Use Value: Delivers ≤1 µA leakage at 20.4 V, reducing quiescent current drain and extending operational runtime between charges. |
| Industrial PLC Input Protection | 5G Small Cell RF Bias Supply |
Use Scenario: Protecting 24 V digital input channels from surge-induced overvoltage in factory automation controllers. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping fast-rising spikes before they reach MCU GPIOs. Use Value: Withstands non-repetitive surge power up to 1 W (1 ms pulse), per Figure 4, without degradation. |
Use Scenario: Providing stable bias voltage to GaN FET gate drivers in millimeter-wave 5G base station power modules. IC Role / Device Role / Timing Role: Precision Zener reference enabling consistent gate drive timing and efficiency optimization. Use Value: Temperature coefficient near zero at 27 V minimizes bias drift across operating temperature range, preserving RF linearity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C27LT1G | Same 27 V nominal Zener, but 300 mW rating and SOD-323 package (1.7 × 1.3 × 0.9 mm) | Lower power handling and larger footprint limit use in ultra-dense layouts | Select when cost sensitivity outweighs size constraints and thermal margin is sufficient |
| MMSZ5258ET1G | 27 V nominal, 500 mW rating, but SOD-123 package (3.7 × 1.6 × 1.1 mm) and higher IR = 10 µA @ 21.6 V | Higher leakage reduces suitability for low-power sensor references | Prefer for general-purpose regulation where PCB area is less constrained and leakage is not critical |
Compared with BZX584-C27LT1G and MMSZ5258ET1G, SZMM5Z4711T1G offers superior space efficiency (SOD−523), lowest leakage (1 µA), and automotive qualification-making it optimal for AEC−Q101–compliant, high-density, low-quiescent designs.
Availability
SZMM5Z4711T1G is available at Aetrix Electronics and suitable for automotive infotainment systems, portable medical sensors, and industrial PLC input protection requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SZMM5Z4711T1G 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 manufacturer specializing in energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
SZMM5Z4711T1G belongs to the MM5Z4xxxTxG/SZMM5Z4xxxTxG Zener regulator family, designed specifically for space-constrained, high-reliability voltage reference and protection in automotive and portable electronics.
FAQ
What is the Zener voltage tolerance of SZMM5Z4711T1G?
The SZMM5Z4711T1G has a nominal Zener voltage of 27 V with a tolerance of ±5%, meaning the actual measured VZ falls between 25.65 V and 28.35 V when tested at IZT = 50 µA and TA = 25°C. This tight tolerance ensures predictable regulation behavior in precision reference applications, and the value is verified per onsemi's Electrical Characteristics table on page 3 of the official datasheet.
Is SZMM5Z4711T1G suitable for automotive applications?
Yes, SZMM5Z4711T1G is explicitly qualified to AEC−Q101 standards and carries the "SZ" prefix, indicating automotive-grade process control, enhanced traceability, and PPAP capability. Its −55°C to +150°C junction temperature range, >16 kV HBM ESD rating, and validated surge performance make it appropriate for engine control units, body electronics, and infotainment systems where reliability is mission-critical.
What is the maximum allowable soldering temperature for SZMM5Z4711T1G?
The maximum case temperature for soldering SZMM5Z4711T1G is 260°C for up to 10 seconds, as specified in the Mechanical Characteristics section of the onsemi datasheet. This rating applies to lead-free reflow profiles and ensures no internal damage or delamination occurs during standard SMT assembly, provided the recommended SOD−523 footprint and thermal profile are followed.
How does the leakage current of SZMM5Z4711T1G compare to similar 27 V Zeners?
SZMM5Z4711T1G specifies ≤1 µA reverse leakage current at VR = 20.4 V, which is significantly lower than alternatives like MMSZ5258ET1G (10 µA @ 21.6 V). This ultra-low leakage directly improves battery life in always-on sensor nodes and enhances accuracy in high-impedance reference circuits where even nanoamp-level errors affect system performance.
What package type does SZMM5Z4711T1G use, and what are its dimensions?
SZMM5Z4711T1G uses the SOD−523 package (Case 502, Style 1), with exact dimensions of 1.20 mm × 0.80 mm × 0.60 mm. Its miniature footprint and cathode band marking support high-speed pick-and-place assembly and enable routing density unattainable with larger packages like SOD−123 or SOD−323-critical for modern smartphone, wearables, and compact automotive ECUs.
SZMM5Z4711T1G 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):
- 27 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 nA @ 20.4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
SZMM5Z4711T1G FAQ
1.How can I place an order for SZMM5Z4711T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMM5Z4711T1G 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 SZMM5Z4711T1G reliable?
The price and inventory of SZMM5Z4711T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMM5Z4711T1G is usually 5 days.
3.What payment methods are accepted for SZMM5Z4711T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMM5Z4711T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMM5Z4711T1G?
SZMM5Z4711T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMM5Z4711T1G 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 SZMM5Z4711T1G?
For technical support, including SZMM5Z4711T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMM5Z4711T1G requirements.
6.How does Aetrix verify that SZMM5Z4711T1G is sourced from the original manufacturer or authorized distributors?
All SZMM5Z4711T1G 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 SZMM5Z4711T1G meets industry standards.
7.What is the process for return or replacement of SZMM5Z4711T1G?
All SZMM5Z4711T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMM5Z4711T1G, 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 SZMM5Z4711T1G part is unused and in its original packaging.
Return procedure for SZMM5Z4711T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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