onsemi SA10AG
- Part No.:
- SA10AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA10AG.pdf
- Description:
- TVS DIODE 10VWM 17VC AXIAL
- Quantity:
- Payment:

- Shipping:

Inventory:3,133
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Product details
Overview
SA10AG from onsemi is a unidirectional 500 W peak power MiniMOSORB Zener transient voltage suppressor (TVS) designed to protect voltage-sensitive circuits from high-energy transients. It features a 10 V working peak reverse voltage (VRWM), 17 V clamping voltage at 29.4 A peak pulse current (IPP), and <1 µA reverse leakage at VRWM, with sub-1 ns response time - ideal for safeguarding power supply inputs in industrial equipment.
For engineers reviewing the SA10AG datasheet, pinout, applications, or equivalent options, key selection criteria include clamping performance under 8.3 ms surge pulses, UL 497B certification for isolated loop protection, temperature coefficient of breakdown voltage, axial leaded Surmetic package compatibility, and ESD robustness (>16 kV HBM).
Technical Context
The SA10AG operates as a unidirectional Zener-based TVS diode, leveraging avalanche breakdown to clamp transient overvoltages above its 11.1–12.3 V breakdown range (VBR @ IT = 1 mA). Its low zener impedance and fast <1 ns response ensure minimal overshoot during ESD or lightning-induced surges.
Rated for 500 W nonrepetitive peak power (1.0 ms pulse), it delivers 17 V clamping at 29.4 A IPP while maintaining thermal stability via 33.3 °C/W junction-to-lead resistance and derated power dissipation above 50°C ambient - enabling reliable use in enclosed power supplies and control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 10 V - maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1 mA | 11.1–12.3 V - precise breakdown threshold defining turn-on sensitivity |
| VC @ IPP=29.4 A | 17 V - maximum clamped voltage seen by protected circuit during surge |
| IPP | 29.4 A - peak pulse current capability per 8.3 ms half-sine waveform |
| PPK | 500 W - transient energy absorption capacity without failure |
| IR @ VRWM | <1 µA - negligible leakage ensuring minimal standby power loss |
| Response Time | <1 ns - ensures clamping activation before transient propagates into ICs |
Pinout & Package
SA10AG is housed in an axial-leaded Surmetic plastic package (Case 59AA), with cathode identified by a polarity band. Leads are solderable per J-STD-020, rated for 260°C for 10 seconds at 1/16 inch from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-side reference in unidirectional protection configuration |
| Cathode | Current exit point during reverse clamping | Connected to protected line (e.g., DC input rail); polarity band marks this terminal |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Validated for isolated loop circuit protection - meets full strike voltage, endurance, and dielectric withstand requirements |
| ESD Robustness | Class 3 (>16 kV) per Human Body Model - eliminates need for secondary ESD stages in front-end interfaces |
| Low Clamping Ratio | VC/VRWM = 1.7 - tight voltage margin between operating and clamping levels improves system-level surge margin |
| Pb-Free Construction | G suffix denotes RoHS-compliant Surmetic package - supports lead-free assembly without requalification |
| Thermal Derating Profile | 30 mW/°C above 50°C ambient - enables predictable power handling in thermally constrained enclosures |
Applications
| Industrial Power Supply Input Protection | Medical Equipment Surge Suppression |
|---|---|
Use Scenario: Protecting 12 V DC input rails in programmable logic controllers against induced surges from relay switching or nearby motor drives. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between input rail and chassis ground to shunt transient energy before reaching downstream regulators. Use Value: 17 V clamping voltage prevents overvoltage damage to 16 V-rated input capacitors and LDOs while surviving repeated 500 W surges. | Use Scenario: Safeguarding patient-connected analog front-ends in diagnostic imaging devices from ESD events during cable handling or connector mating. IC Role / Device Role / Timing Role: Primary transient suppressor on isolated signal/power lines compliant with IEC 60601-1 creepage and clearance requirements. Use Value: UL 497B recognition confirms suitability for medical isolated loop protection, eliminating need for additional certification testing. |
| Communication System DC Feeds | Numerical Control Interface Protection |
Use Scenario: Securing 10–12 V bias feeds to RS-485 transceivers in factory-floor networks exposed to ground potential differences and lightning coupling. IC Role / Device Role / Timing Role: Standoff TVS on power rail upstream of local decoupling, sized to handle 8.3 ms surges per IEEE C37.90.1. Use Value: 29.4 A IPP rating matches common telecom surge test profiles, ensuring compliance without derating. | Use Scenario: Protecting CNC machine controller I/O modules from inductive kickback when driving solenoids or stepper drivers. IC Role / Device Role / Timing Role: Clamp device across relay coil supply lines to absorb stored inductive energy during turn-off. Use Value: Sub-1 ns response captures fast-rising transients before MOSFET gate drivers experience overvoltage stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Surface-mount SMA package (vs. axial leaded); 10.0 V VRWM; 17.0 V VC @ 29.2 A IPP | Requires PCB redesign for SMT placement; better suited for space-constrained board layouts | Select SMAJ10A only if automated assembly and footprint reduction outweigh axial lead serviceability needs |
| P6KE10A | DO-15 package; same VRWM and VC specs but lower 5.0 µA IR @ VRWM and no UL 497B listing | Lacks UL recognition for isolated loop protection; limited to non-certified industrial subsystems | Choose P6KE10A where cost sensitivity dominates and UL compliance is not required |
Compared with SMAJ10A and P6KE10A, the SA10AG provides certified isolation-loop protection in a serviceable axial package, making it preferred for field-replaceable power entry modules and medical-grade designs requiring documented safety compliance.
Availability
SA10AG is available at Aetrix Electronics and suitable for industrial power supplies, medical equipment front-ends, and communication system DC feeds requiring stable component supply with long-term lifecycle assurance.
Supply support for SA10AG 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and sensing applications.
The SA10AG belongs to the MiniMOSORB TVS family, engineered specifically for high-reliability transient suppression in harsh environments - emphasizing robust surge handling, safety certification, and stable parametric performance across temperature.
FAQ
What is the clamping voltage of the SA10AG at its rated peak pulse current?
The SA10AG has a maximum clamping voltage (VC) of 17 V at its specified peak pulse current (IPP) of 29.4 A, measured using the standard 8.3 ms half-sine waveform. This value ensures protected circuits remain below critical overvoltage thresholds during surge events. The SA10AG's low clamping ratio (VC/VRWM = 1.7) reflects its efficient voltage-limiting behavior under transient stress.
Does the SA10AG meet UL 497B requirements for isolated loop protection?
Yes, the SA10AG is explicitly listed under UL 497B (File #E210057, QVGQ2 category) for isolated loop circuit protection. This certification covers rigorous testing including strike voltage breakdown, endurance conditioning, and dielectric withstand - confirming its suitability for safety-critical applications like medical and industrial control systems. The SA10AG shares this recognition with the full SA5.0A–SA170A series.
What is the maximum reverse leakage current of the SA10AG at its working voltage?
The SA10AG exhibits a maximum reverse leakage current (IR) of 1 µA at its 10 V working peak reverse voltage (VRWM), measured at 25°C ambient. This ultra-low leakage minimizes power loss in always-on systems and avoids false triggering in high-impedance sensing circuits. The SA10AG maintains this specification across its qualified operating temperature range of −55°C to +150°C.
How does the SA10AG's thermal derating behave above 50°C ambient temperature?
The SA10AG's steady-state power dissipation (PD) is derated linearly at 30 mW/°C above 50°C ambient, based on its 3.0 W rating at TL ≤ 25°C and 33.3 °C/W junction-to-lead thermal resistance. This predictable derating allows designers to calculate safe operating limits in enclosed enclosures. The SA10AG's axial lead construction supports direct heatsinking via lead bending or mounting hardware for enhanced thermal management.
Is the SA10AG compatible with lead-free soldering processes?
Yes, the SA10AG carries the 'G' suffix indicating Pb-free Surmetic packaging, qualified for lead-free reflow and wave soldering per J-STD-020. Its leads tolerate 260°C for 10 seconds at 1/16 inch from the case body. The SA10AG's thermosetting plastic case remains stable under these conditions, and its electrical parameters are guaranteed post-reflow - supporting full RoHS-compliant manufacturing without performance compromise.
SA10AG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- MiniMosorb™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 29.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
SA10AG FAQ
1.How can I place an order for SA10AG through Aetrix?
Please submit a Request for Quotation (RFQ) for SA10AG 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 SA10AG reliable?
The price and inventory of SA10AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA10AG is usually 5 days.
3.What payment methods are accepted for SA10AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA10AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA10AG?
SA10AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA10AG 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 SA10AG?
For technical support, including SA10AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA10AG requirements.
6.How does Aetrix verify that SA10AG is sourced from the original manufacturer or authorized distributors?
All SA10AG 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 SA10AG meets industry standards.
7.What is the process for return or replacement of SA10AG?
All SA10AG units undergo pre-shipment inspection (PSI). If there is an issue with SA10AG, 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 SA10AG part is unused and in its original packaging.
Return procedure for SA10AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA10AG Tags

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ESD9B5.0ST5G
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DESD5V0U1BB-7
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D12V0L1B2LP-7B
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PESD2V0Y1BSFYL
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