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onsemi SZMMSZ4713T1G
- Part No.:
- SZMMSZ4713T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
SZMMSZ4713T1G.pdf
- Description:
- DIODE ZENER 30V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:5,956
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Product details
Overview
SZMMSZ4713T1G from onsemi is a 30 V ±5% Zener voltage regulator diode in SOD−123 package, rated for 500 mW power dissipation at 75°C, with 50 µA test current (IZT), 0.01 µA leakage at 22.8 V reverse bias, and AEC−Q101 qualification for automotive applications.
For engineers reviewing the SZMMSZ4713T1G datasheet, pinout, applications, or equivalent options, key selection criteria include precise 30 V regulation tolerance, low leakage in high-impedance bias networks, thermal derating behavior above 75°C, and Pb−free SOD−123 compatibility with automated reflow assembly.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across load variations and supply fluctuations. Its 30 V nominal Zener voltage is specified at IZT = 50 µA with ±5% tolerance, and exhibits a positive temperature coefficient typical of mid-voltage Zeners in this series.
The device delivers regulated reference voltage in low-power analog circuits, overvoltage clamping in signal conditioning paths, and precision biasing for op-amp feedback networks - all within its 500 mW FR−5 board rating and −55°C to +150°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.5 V min / 30 V nom / 31.5 V max @ IZT = 50 µA - defines regulation band for precision voltage reference use |
| Power Dissipation (PD) | 500 mW @ TL = 75°C - sets maximum continuous power under defined board thermal conditions |
| Reverse Leakage (IR) | 0.01 µA @ VR = 22.8 V - ensures minimal error current in high-impedance sensing or reference divider legs |
| Junction Temp Range | −55°C to +150°C - supports operation in under-hood automotive and industrial environments |
| Package | SOD−123 (Case 425) - 1.60 × 2.69 × 1.16 mm surface-mount outline compatible with standard pick-and-place and reflow profiles |
| AEC−Q101 Qualified | Yes - validated for automotive electronics per stress test requirements including temperature cycling and HTRB |
Pinout & Package
SOD−123 package with cathode indicated by polarity band; 2-terminal construction optimized for high-density PCB layout and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Low IZT | 50 µA test current enables stable regulation in ultra-low-power bias networks without excessive quiescent draw |
| ESD Robustness | Class 3 (>16 kV HBM) prevents damage during handling and board assembly in unshielded environments |
| Pb−Free & RoHS Compliant | Meets global environmental directives and supports lead-free reflow soldering up to 260°C for 10 seconds |
| Automated Assembly Optimized | Void-free molded case and corrosion-resistant finish ensure reliable solder joint formation in high-speed placement lines |
Applications
| Automotive Sensor Biasing | Industrial Analog Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) in engine control units. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric measurement circuitry. Use Value: 30 V Zener voltage with ±5% tolerance and <0.01 µA leakage minimizes measurement drift across −40°C to +125°C ambient. |
Use Scenario: Generating fixed reference for 12-bit ADC input scaling in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift DC reference node in resistor-divider-based scaling networks. Use Value: Tight 28.5–31.5 V regulation window and AEC−Q101 qualification ensure long-term stability in harsh industrial environments. |
| Overvoltage Clamp Protection | Low-Power Voltage Monitor |
Use Scenario: Clamping transient surges on 24 V CAN transceiver supply rails in vehicle body control modules. IC Role / Device Role / Timing Role: Fast-acting shunt protection element limiting voltage excursion above safe threshold. Use Value: 500 mW surge capability and 30 V clamping level protect downstream ICs while surviving repetitive 100 ms transients per ISO 7637-2. |
Use Scenario: Enabling brown-out detection in battery-powered telematics units using comparator input referenced to Zener node. IC Role / Device Role / Timing Role: Low-current voltage threshold generator for system reset assertion. Use Value: 50 µA IZT and sub-nA leakage allow reliable monitoring with <1 µA total quiescent current in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4713T1G | No AEC−Q101 qualification; identical electrical specs and SOD−123 package | Not approved for automotive production; suitable for industrial/commercial designs only | Select when automotive qualification is not required and cost sensitivity favors non-SZ prefix variant |
| BZX84-C30LT1G | 30 V Zener, 350 mW rating, SOT−23 package, higher leakage (100 nA @ 24 V) | Smaller footprint but lower power margin; less suitable for sustained clamp duty | Choose for space-constrained layouts where 350 mW suffices and SOT−23 placement infrastructure exists |
Compared with MMSZ4713T1G and BZX84-C30LT1G, SZMMSZ4713T1G uniquely combines automotive qualification, 500 mW power headroom, and sub-nA leakage - making it the preferred choice for safety-critical voltage references in Tier 1 automotive subsystems.
Availability
SZMMSZ4713T1G is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog reference generation, and overvoltage clamp protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SZMMSZ4713T1G 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.
SZMMSZ4xxxT1G series was designed specifically for automotive-grade voltage regulation and protection, meeting AEC−Q101 stress testing and PPAP requirements while maintaining compatibility with commercial MMSZ4xxxT1G variants.
FAQ
What is the Zener voltage tolerance of SZMMSZ4713T1G?
The SZMMSZ4713T1G has a nominal Zener voltage of 30 V with a tolerance of ±5%, meaning the actual measured VZ falls between 28.5 V and 31.5 V when tested at IZT = 50 µA and TA = 25°C. This tight tolerance supports precision reference applications where voltage accuracy directly impacts system measurement fidelity. The SZMMSZ4713T1G maintains this specification across its qualified operating temperature range.
Is SZMMSZ4713T1G suitable for automotive applications?
Yes, SZMMSZ4713T1G is AEC−Q101 qualified and PPAP capable, making it suitable for automotive applications including engine control, body electronics, and ADAS subsystems. Its construction meets automotive reliability standards for temperature cycling, humidity resistance, and mechanical shock. The SZMMSZ4713T1G also features Pb−free packaging compliant with RoHS and ELV directives required for vehicle production.
What is the maximum power dissipation for SZMMSZ4713T1G on FR−5 board?
SZMMSZ4713T1G is rated for 500 mW total power dissipation on FR−5 board at lead temperature (TL) = 75°C, with linear derating of 6.7 mW/°C above that temperature. This rating assumes use of the minimum recommended footprint per the datasheet. Exceeding this limit risks thermal runaway or accelerated parametric shift, especially in enclosed or poorly ventilated automotive enclosures where the SZMMSZ4713T1G may operate near its upper junction temperature limit.
How does the leakage current of SZMMSZ4713T1G compare to similar Zeners?
SZMMSZ4713T1G specifies only 0.01 µA (10 nA) maximum reverse leakage current at VR = 22.8 V, significantly lower than many competing 30 V Zeners - for example, BZX84-C30LT1G specifies 100 nA at 24 V. This ultra-low leakage preserves accuracy in high-impedance voltage dividers and minimizes error in precision bias networks where even nanoamp-level currents affect performance. The SZMMSZ4713T1G achieves this while maintaining full AEC−Q101 qualification.
What package type is used for SZMMSZ4713T1G?
SZMMSZ4713T1G uses the SOD−123 surface-mount package (Case 425), measuring 1.60 × 2.69 × 1.16 mm. It features a cathode band marking and is optimized for automated pick-and-place and reflow soldering. The package supports JEDEC-standard tape-and-reel shipping (3,000 units per reel) and withstands 260°C for 10 seconds during soldering. This compact, robust form factor makes SZMMSZ4713T1G ideal for space-constrained automotive and industrial PCBs.
SZMMSZ4713T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 nA @ 22.8 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
SZMMSZ4713T1G FAQ
1.How can I place an order for SZMMSZ4713T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMMSZ4713T1G 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 SZMMSZ4713T1G reliable?
The price and inventory of SZMMSZ4713T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMMSZ4713T1G is usually 5 days.
3.What payment methods are accepted for SZMMSZ4713T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMMSZ4713T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMMSZ4713T1G?
SZMMSZ4713T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMMSZ4713T1G 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 SZMMSZ4713T1G?
For technical support, including SZMMSZ4713T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMMSZ4713T1G requirements.
6.How does Aetrix verify that SZMMSZ4713T1G is sourced from the original manufacturer or authorized distributors?
All SZMMSZ4713T1G 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 SZMMSZ4713T1G meets industry standards.
7.What is the process for return or replacement of SZMMSZ4713T1G?
All SZMMSZ4713T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMMSZ4713T1G, 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 SZMMSZ4713T1G part is unused and in its original packaging.
Return procedure for SZMMSZ4713T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZMMSZ4713T1G Tags
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