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onsemi SZMMSZ4700T1G
- Part No.:
- SZMMSZ4700T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
SZMMSZ4700T1G.pdf
- Description:
- DIODE ZENER 13V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:2,056
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Product details
Overview
SZMMSZ4700T1G from onsemi is a 13 V ±5% Zener voltage regulator diode in SOD−123 package, rated for 500 mW power dissipation at TL = 75°C, with 50 µA test current (IZT), 0.05 µA reverse leakage at 9.8 V, and −55°C to +150°C operating temperature range-used for precision voltage reference and overvoltage protection in automotive power management circuits.
For engineers reviewing the SZMMSZ4700T1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance, low IZT stability, thermal derating behavior, AEC−Q101 qualification status, and SOD−123 board assembly compatibility.
Technical Context
This device operates as a two-terminal silicon Zener diode with sharp reverse breakdown at nominal 13 V, designed for stable voltage clamping and reference generation under DC or low-frequency transient conditions. Its 50 µA IZT ensures low-power biasing capability while maintaining tight VZ tolerance (±5%) across temperature.
The SOD−123 package delivers 340°C/W junction-to-ambient thermal resistance and supports automated placement; its AEC−Q101 qualification confirms suitability for automotive applications requiring PPAP documentation and site-controlled manufacturing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.35 V min / 13.0 V nom / 13.65 V max @ IZT = 50 µA - defines clamping threshold with ±5% tolerance for reliable overvoltage cutoff. |
| Power Dissipation (PD) | 500 mW @ TL = 75°C - sets maximum steady-state thermal load on FR−5 PCB without forced cooling. |
| Reverse Leakage (IR) | 0.05 µA @ VR = 9.8 V - ensures minimal standby current in high-impedance reference paths. |
| Thermal Resistance (RJA) | 340°C/W - determines junction temperature rise per milliwatt under natural convection on standard board. |
| Operating Temperature | −55°C to +150°C - enables deployment in under-hood automotive environments and industrial control systems. |
| ESD Rating | Class 3 (>16 kV HBM) - protects against handling-induced electrostatic discharge during assembly and field operation. |
Pinout & Package
Package: SOD−123 surface-mount plastic case (1.60 × 2.69 × 1.16 mm), cathode indicated by polarity band, Pb−Free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs. |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes current path during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 Qualified | Validated for automotive use with PPAP documentation support and controlled manufacturing site requirements. |
| Low IZT (50 µA) | Enables stable Zener operation in ultra-low-power bias networks without excessive quiescent current draw. |
| High ESD Robustness (Class 3) | Withstands >16 kV human-body-model discharge, reducing need for external ESD protection in compact layouts. |
| Small SOD−123 Footprint | Supports high-density PCB routing and automated pick-and-place assembly with industry-standard land pattern. |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage clamping of LIN bus transceiver supply rails subject to load-dump transients up to 40 V. IC Role / Device Role / Timing Role: Zener diode providing fast-response overvoltage protection to safeguard downstream analog front-end ICs. Use Value: Limits peak rail voltage to ≤13.65 V with <0.05 µA leakage, preserving signal integrity and preventing latch-up in 3.3 V/5 V logic interfaces. |
Use Scenario: Stable 13 V reference for 16-bit ADC biasing in temperature-transmitter modules operating from 24 V loop supplies. IC Role / Device Role / Timing Role: Precision voltage reference source with ±5% tolerance and low TC drift over −40°C to +125°C ambient. Use Value: Delivers repeatable reference accuracy without active regulation, reducing BOM count and power consumption in isolated sensor nodes. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Power Monitoring |
Use Scenario: Secondary-side voltage sensing in flyback converters for USB-C PD adapters requiring tight output regulation. IC Role / Device Role / Timing Role: Zener-based feedback element setting optocoupler LED current threshold for primary-side controller adjustment. Use Value: Maintains ±1% output voltage accuracy across line/load variations due to stable 13 V breakdown and low dynamic impedance (ZZT). |
Use Scenario: Overvoltage detection circuit monitoring auxiliary 12 V rails powering FPGA configuration memory in portable ultrasound units. IC Role / Device Role / Timing Role: Fail-safe clamp protecting non-volatile configuration storage from supply surges exceeding safe programming thresholds. Use Value: Activates at 13.65 V with sub-µA leakage, ensuring zero interference during normal operation while guaranteeing immediate shutdown above fault threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13 | Same 13 V nominal Zener voltage but higher IZT (5 mA), larger SOT-23 package, no AEC−Q101 qualification. | Limited to commercial-grade consumer electronics; unsuitable for automotive PPAP or high-reliability industrial use. | Select when cost sensitivity outweighs automotive compliance and low-current biasing needs. |
| MMSZ4700T1G | Identical electrical specs and SOD−123 package, but lacks SZ prefix - not AEC−Q101 qualified or PPAP capable. | Acceptable for non-automotive applications where qualification documentation and site control are not required. | Choose only for non-automotive designs where full automotive traceability and change control are unnecessary. |
Compared with BZX84-C13 and MMSZ4700T1G, the SZMMSZ4700T1G provides automotive-grade reliability, ultra-low 50 µA test current for energy-sensitive biasing, and guaranteed PPAP support-making it the sole option for safety-critical vehicle subsystems requiring documented process control.
Availability
SZMMSZ4700T1G is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and medical diagnostic equipment power monitoring requiring stable component supply, long-term lifecycle assurance, and AEC−Q101-compliant sourcing.
Supply support for SZMMSZ4700T1G 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 focused on energy-efficient technologies for automotive, industrial, cloud, and IoT applications.
The SZMMSZ4xxxT1G series is part of onsemi's automotive-qualified Zener diode portfolio, engineered specifically for robust voltage regulation in harsh-environment electronic control units requiring AEC−Q101 validation and PPAP documentation.
FAQ
What is the Zener voltage tolerance of SZMMSZ4700T1G?
The SZMMSZ4700T1G has a nominal Zener voltage of 13.0 V with a tolerance of ±5%, corresponding to a minimum of 12.35 V and maximum of 13.65 V when measured at IZT = 50 µA and TA = 25°C. This tolerance remains valid across the full −55°C to +150°C operating temperature range, as confirmed in the onsemi datasheet revision 13.
Is SZMMSZ4700T1G qualified for automotive applications?
Yes, SZMMSZ4700T1G is AEC−Q101 qualified and PPAP capable, with the "SZ" prefix indicating dedicated automotive manufacturing controls, site-specific change management, and full traceability. It meets stringent automotive reliability standards including temperature cycling, humidity testing, and mechanical shock requirements defined in the AEC−Q101 specification.
What is the maximum power dissipation for SZMMSZ4700T1G on a standard PCB?
SZMMSZ4700T1G is rated for 500 mW total power dissipation on FR−5 board at lead temperature (TL) of 75°C. Above 75°C, it derates linearly at 6.7 mW/°C. This rating assumes the minimum recommended footprint per onsemi's SOD−123 layout guidelines and accounts for natural convection cooling without heatsinking.
Does SZMMSZ4700T1G have ESD protection built-in?
Yes, SZMMSZ4700T1G features an ESD rating of Class 3 (>16 kV) per the Human Body Model (HBM), verified per JESD22-A114. This level of protection eliminates the need for discrete ESD suppressors in many board-level designs and enhances robustness during automated assembly and field service.
What is the reverse leakage current of SZMMSZ4700T1G at 9.8 V?
The reverse leakage current (IR) of SZMMSZ4700T1G is specified as 0.05 µA maximum at VR = 9.8 V and TA = 25°C. This ultra-low leakage supports high-impedance reference circuits and minimizes standby power loss in battery-operated systems where current budget is constrained.
SZMMSZ4700T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.8 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
SZMMSZ4700T1G FAQ
1.How can I place an order for SZMMSZ4700T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMMSZ4700T1G 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 SZMMSZ4700T1G reliable?
The price and inventory of SZMMSZ4700T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMMSZ4700T1G is usually 5 days.
3.What payment methods are accepted for SZMMSZ4700T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMMSZ4700T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMMSZ4700T1G?
SZMMSZ4700T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMMSZ4700T1G 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 SZMMSZ4700T1G?
For technical support, including SZMMSZ4700T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMMSZ4700T1G requirements.
6.How does Aetrix verify that SZMMSZ4700T1G is sourced from the original manufacturer or authorized distributors?
All SZMMSZ4700T1G 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 SZMMSZ4700T1G meets industry standards.
7.What is the process for return or replacement of SZMMSZ4700T1G?
All SZMMSZ4700T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMMSZ4700T1G, 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 SZMMSZ4700T1G part is unused and in its original packaging.
Return procedure for SZMMSZ4700T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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