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onsemi SZMMSZ13T1G
- Part No.:
- SZMMSZ13T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
SZMMSZ13T1G.pdf
- Description:
- DIODE ZENER 13V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:6,837
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Product details
Overview
SZMMSZ13T1G from onsemi is a 13 V ±5% Zener diode in SOD−123 package, rated for 500 mW power dissipation at 75°C ambient, with 30 Ω dynamic impedance at 5 mA test current and 0.1 μA reverse leakage at 10.4 V. It serves as a precision voltage reference or overvoltage clamp in low-power analog and automotive sensor circuits.
For engineers reviewing the SZMMSZ13T1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, thermal derating behavior, AEC−Q101 qualification status, and direct alternatives for voltage regulation design-in.
Technical Context
This device operates as a two-terminal silicon Zener diode optimized for stable reverse-bias breakdown at nominal 13 V. Its 30 Ω Zener impedance (ZZT) at IZT = 5 mA and temperature coefficient near +2.5 mV/°C (per Figure 1) support predictable regulation across −55°C to +150°C junction range.
Designed for surface-mount assembly on FR−4/FR−5 boards, it features Class 3 ESD robustness (>16 kV HBM), Pb−Free construction, and cathode polarity band marking. Thermal resistance is 340°C/W junction-to-ambient and 150°C/W junction-to-lead per infrared scan method.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.35–13.65 V @ IZT = 5 mA; ±5% tolerance enables stable reference in 12 V rail monitoring |
| Power Dissipation (PD) | 500 mW @ TL = 75°C; derates 6.7 mW/°C above 75°C for thermal-aware layout |
| Zener Impedance (ZZT) | 30 Ω max @ IZT = 5 mA; ensures minimal output voltage shift under load variation |
| Reverse Leakage (IR) | 0.1 μA max @ VR = 10.4 V; supports low-quiescent-current bias networks |
| Junction Temp Range | −55°C to +150°C; validated for under-hood automotive and industrial environments |
| ESD Rating | Class 3 (>16 kV) per HBM; withstands handling and board-level electrostatic events |
Pinout & Package
SOD−123 surface-mount plastic package (1.60 × 2.69 × 1.16 mm), void-free thermosetting case with corrosion-resistant finish; cathode indicated by polarity band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated voltage node; must be held at higher potential than anode during operation |
| 2 (Anode) | Reference/ground terminal | Typically tied to system ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| AEC−Q101 qualified | Validated for automotive electronics including engine control modules and body electronics |
| Small SOD−123 footprint | Enables high-density PCB layouts in space-constrained modules like sensor transmitters |
| 500 mW rating on FR−5 board | Supports sustained regulation in thermally demanding applications without heatsinking |
| Pb−Free construction | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles |
Applications
| Automotive Sensor Biasing | Industrial Analog Signal Clamping |
|---|---|
Use Scenario: Providing stable 13 V reference for Hall-effect position sensors in transmission control units. IC Role / Device Role / Timing Role: Zener diode acting as shunt voltage regulator for sensor excitation circuitry. Use Value: Maintains sensor accuracy despite battery voltage fluctuations between 9 V and 16 V. | Use Scenario: Limiting input voltage to ADC front-end in programmable logic controller analog input modules. IC Role / Device Role / Timing Role: Overvoltage protection element clamping transient spikes before signal conditioning stage. Use Value: Prevents ADC saturation and input-stage damage during 100 ns surge events up to 20 V. |
| Low-Power IoT Voltage Reference | Consumer Power Supply Feedback |
Use Scenario: Generating precise bias point for op-amp comparators in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Passive voltage reference source with sub-μA quiescent draw. Use Value: Enables multi-year operation on coin-cell batteries while maintaining 1% reference stability. | Use Scenario: Setting feedback threshold in isolated flyback converter secondary-side regulation loop. IC Role / Device Role / Timing Role: Zener-based error amplifier reference in optocoupler-coupled feedback network. Use Value: Delivers tight output voltage regulation (±2%) across line and load variations without auxiliary winding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ13T1G | No SZ prefix; not AEC−Q101 qualified; identical electrical specs and SOD−123 package | Targeted for commercial/industrial use only; lacks automotive change control documentation | Select when AEC−Q101 compliance is unnecessary and cost sensitivity is high |
| BZX84-C13 | Higher Zener impedance (40 Ω max @ 5 mA); SOT−23 package; no AEC−Q101 rating | Less stable regulation under dynamic load; larger footprint than SOD−123; unsuitable for automotive PPAP | Choose only for legacy designs where SOT−23 is already routed and 13 V tolerance margin allows higher ZZT |
Compared with MMSZ13T1G and BZX84-C13, SZMMSZ13T1G uniquely combines AEC−Q101 qualification, 30 Ω Zener impedance, and SOD−123 miniaturization-making it the sole option for new automotive designs requiring both reliability validation and space-constrained layout.
Availability
SZMMSZ13T1G is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog signal clamping, and low-power IoT voltage reference applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SZMMSZ13T1G 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.
The MMSZxxxT1G/SZMMSZxxxT1G series was developed specifically for compact, high-reliability voltage regulation in automotive and industrial systems where AEC−Q101 validation and small SOD−123 packaging are mandatory.
FAQ
What is the Zener voltage tolerance of SZMMSZ13T1G?
SZMMSZ13T1G has a nominal Zener voltage of 13 V with a standard tolerance of ±5%, resulting in a guaranteed range of 12.35 V to 13.65 V when tested at IZT = 5 mA and TA = 25°C. This tolerance remains valid across the full operating temperature range per onsemi's characterization data.
Is SZMMSZ13T1G suitable for automotive applications?
Yes, SZMMSZ13T1G is AEC−Q101 qualified and PPAP capable, with documented test results covering temperature cycling, humidity bias, mechanical shock, and ESD. The "SZ" prefix explicitly denotes compliance with automotive-specific site and process controls required for engine control, body electronics, and ADAS subsystems.
What is the maximum reverse leakage current for SZMMSZ13T1G?
The maximum reverse leakage current for SZMMSZ13T1G is 0.1 μA at VR = 10.4 V and TA = 25°C. This ultra-low leakage supports energy-sensitive applications such as battery-backed real-time clocks and always-on sensor nodes where standby current must remain below 1 μA.
Does SZMMSZ13T1G have Pb−Free packaging?
Yes, SZMMSZ13T1G is supplied in a Pb−Free SOD−123 package compliant with RoHS Directive 2011/65/EU. The "G" suffix in the part number confirms lead-free construction, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 for standard reflow processes.
How does thermal derating work for SZMMSZ13T1G?
SZMMSZ13T1G is rated for 500 mW power dissipation at lead temperature (TL) = 75°C. Above 75°C, power must be linearly derated at 6.7 mW/°C, reaching zero dissipation at approximately 149°C. This derating curve is defined in the Maximum Ratings table and validated per infrared scan methodology.
SZMMSZ13T1G 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:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 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
SZMMSZ13T1G FAQ
1.How can I place an order for SZMMSZ13T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZMMSZ13T1G 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 SZMMSZ13T1G reliable?
The price and inventory of SZMMSZ13T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZMMSZ13T1G is usually 5 days.
3.What payment methods are accepted for SZMMSZ13T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZMMSZ13T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZMMSZ13T1G?
SZMMSZ13T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZMMSZ13T1G 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 SZMMSZ13T1G?
For technical support, including SZMMSZ13T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZMMSZ13T1G requirements.
6.How does Aetrix verify that SZMMSZ13T1G is sourced from the original manufacturer or authorized distributors?
All SZMMSZ13T1G 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 SZMMSZ13T1G meets industry standards.
7.What is the process for return or replacement of SZMMSZ13T1G?
All SZMMSZ13T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZMMSZ13T1G, 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 SZMMSZ13T1G part is unused and in its original packaging.
Return procedure for SZMMSZ13T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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