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onsemi SMSZ1010T1G
- Part No.:
- SMSZ1010T1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
SMSZ1010T1G.pdf
- Description:
- SMSZ1010 - TRANSIENT VOLTAGE SUP
- Quantity:
- Payment:
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Inventory:54,000
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Product details
Overview
SMSZ1010T1G from ON Semiconductor is a 10 V, 500 mW Zener diode in SOD-123 package, rated for ±5% tolerance and 5 µA maximum reverse leakage at 7.6 V, used for precision voltage regulation and overvoltage protection in low-power analog circuits and power supply feedback paths.
For engineers reviewing the SMSZ1010T1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, validated SOD-123 terminal configuration, real-world use cases in voltage reference and ESD-clamped bias networks, and two confirmed alternative Zeners with documented parameter alignment.
Technical Context
This device operates as a silicon planar Zener diode with sharp reverse breakdown at nominal 10 V, optimized for stable regulation under DC or low-frequency transient conditions. Its 500 mW power dissipation rating and 5 µA IR @ VR = 7.6 V support reliable clamping in signal-level circuits without thermal runaway.
The SOD-123 package enables surface-mount integration with 2.5 mm × 1.3 mm footprint and gull-wing leads compatible with standard reflow profiles. Device qualification per IPCN #20425 confirms HTSL (1008 hrs @ 150°C), HTRB (1008 hrs @ 150°C), and TC (1000 cycles, −65°C to +150°C) compliance for industrial reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V ±5% - precise regulation point for feedback loops requiring tight voltage setpoints. |
| Power Dissipation (PZ) | 500 mW - supports continuous operation at up to 50 mA Zener current without derating in ambient ≤75°C. |
| Reverse Leakage (IR) | ≤5 µA @ VR = 7.6 V - ensures minimal quiescent current draw in high-impedance bias networks. |
| Zener Impedance (ZZT) | 15 Ω @ IZ = 20 mA - maintains low dynamic impedance for stable regulation under load transients. |
| Package | SOD-123 - compact 2-pin surface-mount outline with 1.3 mm height, suitable for space-constrained PCB layouts. |
| Operating Temperature | −65°C to +150°C - qualified for extended industrial and automotive under-hood environments. |
Pinout & Package
SOD-123 package: 2-terminal surface-mount device with cathode band marking; terminals are anode (pin 1) and cathode (pin 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / Zener reference ground node | Connected to circuit ground or lower-potential rail; defines reference polarity for reverse-biased operation. |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input or node requiring clamped/stabilized voltage; carries full Zener current during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| ±5% VZ tolerance | Enables accurate voltage setting without post-production trimming in cost-sensitive consumer and industrial designs. |
| Low IR (≤5 µA @ 7.6 V) | Minimizes error in high-resistance divider networks used in ADC references and op-amp biasing. |
| 15 Ω ZZT @ 20 mA | Reduces output voltage variation under 10–50 mA load steps, critical for stable LDO feedback paths. |
| SOD-123 footprint | Matches JEDEC DO-213AA standard, enabling drop-in replacement in existing 0805-class layouts with no pad redesign. |
Applications
| Voltage Reference for ADCs | Overvoltage Clamp in Sensor Interfaces |
|---|---|
Use Scenario: Providing stable 10 V reference to 12-bit SAR ADCs in data acquisition modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to generate fixed reference potential independent of supply ripple. Use Value: Delivers <±0.5% initial accuracy and <10 ppm/°C TC over −40°C to +85°C, reducing system calibration burden. |
Use Scenario: Protecting 3.3 V I²C lines from ESD-induced transients exceeding 12 V. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting bus voltage to 10.5 V peak during 8 kV HBM events. Use Value: Limits clamping voltage to within 10% of IC absolute maximum rating while sustaining >10⁴ ESD strikes without degradation. |
| Feedback Divider in Isolated DC-DC Converters | Biased Bias Network in Op-Amp Circuits |
Use Scenario: Setting output voltage in 5 W flyback converters using optocoupler feedback. IC Role / Device Role / Timing Role: Zener referenced across secondary-side resistor divider to fix regulation threshold. Use Value: Maintains ±1.5% output regulation over line (85–265 VAC) and load (10–100%) variations due to stable VZ and low ZZT. |
Use Scenario: Generating stable 10 V bias for rail-to-rail input op-amps in battery-powered instrumentation. IC Role / Device Role / Timing Role: Low-leakage Zener supplying reference voltage to op-amp non-inverting input via high-value resistors. Use Value: Enables <10 nA input bias error contribution and <0.02% gain error in 1 MΩ feedback networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ10T1G | Same 10 V ±5%, 500 mW rating; identical SOD-123 package but manufactured at Seremban site pre-2014 transfer. | No functional difference; fully interchangeable in all designs meeting legacy qualification requirements. | Select when sourcing from legacy inventory or dual-sourced BOMs requiring Seremban-assembled units. |
| SZMMSZ10T1G | Automotive-grade variant (AEC-Q101 qualified); same VZ, PZ, and package, but with enhanced HTRB/HTSL test margins. | Required for automotive body electronics or ADAS subsystems needing AEC-Q101 compliance. | Choose for new automotive designs or where extended reliability validation is mandated by OEM specifications. |
Compared with SMSZ1010T1G, MMSZ10T1G offers identical electrical performance with legacy manufacturing provenance, while SZMMSZ10T1G adds AEC-Q101 qualification for automotive deployment-neither requires PCB changes, but selection depends on qualification scope and end-market compliance needs.
Availability
SMSZ1010T1G is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and feedback regulation applications requiring stable component supply across industrial automation, sensor interface modules, and isolated power supplies.
Supply support for SMSZ1010T1G 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
SMSZ1010T1G belongs to the MMSZ/SZMMSZ family of precision Zener diodes designed for high-stability voltage regulation in space-constrained, low-power systems where accuracy and long-term reliability are critical.
FAQ
What is the Zener voltage tolerance of SMSZ1010T1G?
The SMSZ1010T1G has a nominal Zener voltage of 10 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 9.5 V and 10.5 V at test current. This tolerance is measured and guaranteed per ON Semiconductor's characterization data, and applies directly to SMSZ1010T1G under standard test conditions (IZ = 20 mA, TJ = 25°C). The specification ensures predictable regulation behavior in feedback and reference applications.
Is SMSZ1010T1G qualified for automotive applications?
No, SMSZ1010T1G is not AEC-Q101 qualified. It is a standard industrial-grade Zener diode. For automotive use, ON Semiconductor offers the SZMMSZ10T1G - the automotive-qualified version of the same 10 V Zener - which undergoes additional stress testing including extended HTRB and temperature cycling per AEC-Q101. SMSZ1010T1G remains suitable for industrial, consumer, and commercial applications where AEC-Q101 is not required.
What is the maximum reverse leakage current for SMSZ1010T1G?
The maximum reverse leakage current (IR) for SMSZ1010T1G is 5 µA at VR = 7.6 V and TJ = 25°C. This value is specified in ON Semiconductor's characterization data and reflects worst-case leakage under sub-breakdown conditions. Low IR ensures minimal loading of high-impedance nodes - such as those found in precision voltage dividers or op-amp bias networks - preserving signal integrity and measurement accuracy in circuits using SMSZ1010T1G.
Does SMSZ1010T1G have the same pinout as MMSZ10T1G?
Yes, SMSZ1010T1G and MMSZ10T1G share identical SOD-123 packaging and pinout: anode (unmarked end) and cathode (banded end), with identical mechanical dimensions and solder pad layout. Both devices are physically and electrically interchangeable in PCB designs, provided thermal and qualification requirements align. This compatibility is confirmed through ON Semiconductor's IPCN documentation and package standardization across the MMSZ/SMSZ family.
What reliability testing has SMSZ1010T1G undergone?
SMSZ1010T1G was qualified under IPCN #20425 for assembly and test transfer to Leshan, China, and passed full reliability stress testing including HTSL (1008 hrs @ 150°C), HTRB (1008 hrs @ 150°C), temperature cycling (1000 cycles, −65°C to +150°C), and autoclave (96 hrs @ 121°C, 100% RH). These results confirm robustness for industrial environments and validate long-term stability of SMSZ1010T1G's Zener characteristics under thermal and humidity stress.
SMSZ1010T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SMSZ1010T1G FAQ
1.How can I place an order for SMSZ1010T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SMSZ1010T1G 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 SMSZ1010T1G reliable?
The price and inventory of SMSZ1010T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMSZ1010T1G is usually 5 days.
3.What payment methods are accepted for SMSZ1010T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMSZ1010T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMSZ1010T1G?
SMSZ1010T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMSZ1010T1G 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 SMSZ1010T1G?
For technical support, including SMSZ1010T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMSZ1010T1G requirements.
6.How does Aetrix verify that SMSZ1010T1G is sourced from the original manufacturer or authorized distributors?
All SMSZ1010T1G 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 SMSZ1010T1G meets industry standards.
7.What is the process for return or replacement of SMSZ1010T1G?
All SMSZ1010T1G units undergo pre-shipment inspection (PSI). If there is an issue with SMSZ1010T1G, 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 SMSZ1010T1G part is unused and in its original packaging.
Return procedure for SMSZ1010T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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