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onsemi SA13AG
- Part No.:
- SA13AG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA13AG.pdf
- Description:
- TVS DIODE 13VWM 21.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,563
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Product details
Overview
SA13AG 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 13 V working peak reverse voltage (VRWM), 21.5 V clamping voltage at 13 A peak pulse current (IPP), <1 µA leakage at VRWM, <1.0 ns response time, and UL 497B recognition for isolated loop circuit protection - deployed in industrial power supplies and medical equipment.
For engineers reviewing the SA13AG datasheet, pinout, applications, or equivalent options, key selection criteria include clamping performance under 8.3 ms surge pulses, thermal derating above 50°C, axial leaded Surmetic package compatibility with through-hole reflow, and compliance with Class 3 ESD (>16 kV HBM).
Technical Context
The SA13AG operates as a unidirectional Zener-based TVS diode, leveraging avalanche breakdown to clamp transient overvoltages before they reach downstream ICs. Its low zener impedance and fast sub-nanosecond response enable effective suppression of EFT/burst and lightning-induced surges per IEC 61000-4-4/5.
It is rated for 500 W nonrepetitive peak pulse power (1.0 ms waveform), with steady-state power dissipation of 3.0 W at 25°C lead temperature, derated linearly to 30 mW/°C above 50°C. Thermal resistance junction-to-lead is 33.3°C/W, supporting reliable operation in thermally constrained industrial enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage (VRWM) | 13 V - maximum continuous DC or peak AC voltage the device blocks without clamping |
| Clamping Voltage (VC) @ IPP | 21.5 V @ 13 A - maximum voltage seen by protected circuit during 8.3 ms surge event |
| Peak Pulse Power (PPK) | 500 W @ 1.0 ms - surge energy handling capacity per single transient event |
| Reverse Leakage Current (IR) | <1 µA @ 13 V - minimal standby power loss and signal integrity impact in high-impedance circuits |
| Response Time | <1.0 ns - ensures clamping activation before most semiconductor damage thresholds are exceeded |
| ESD Rating (HBM) | Class 3 (>16 kV) - meets stringent electrostatic discharge immunity requirements for end-user equipment |
| UL Recognition | UL 497B (QVGQ2, File #E210057) - certified for use in isolated loop circuit protection applications |
Pinout & Package
SA13AG is housed in an axial-leaded Surmetic plastic package (Case 59AA), with cathode indicated by a polarity band. Leads are tin-plated, solderable at 260°C for 10 seconds at 1/16 inch from case. Mounting position is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or lowest potential node; completes conduction path during transient clamping |
| Cathode | High-side transient input terminal | Connected to line being protected; avalanche breakdown initiates here when VRWM is exceeded |
Key Features
| Feature | Design Value |
|---|---|
| 500 W peak pulse power rating | Enables robust protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without degradation |
| UL 497B certification | Validates suitability for safety-critical isolated loop interfaces in medical and industrial control systems |
| Class 3 ESD immunity | Eliminates need for additional HBM-level protection in front-end interfaces exposed to user handling |
| Low zener impedance | Minimizes voltage overshoot during fast-rising transients, preserving timing margins in digital logic rails |
| Pb-free Surmetic package | Meets RoHS Directive 2011/65/EU and supports lead-free assembly without reliability compromise |
Applications
| Industrial Power Supply Input Protection | Medical Equipment EMI Filter Clamp |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input terminals to shunt surge energy to ground before it reaches upstream rectifier and bulk capacitor. Use Value: Clamps 500 W transients to ≤21.5 V, preventing overvoltage failure of 35 V-rated electrolytic capacitors and MOSFET gate oxides. |
Use Scenario: Signal isolation barrier in patient-connected diagnostic device (e.g., ECG front-end) with optocoupler-based galvanic separation. IC Role / Device Role / Timing Role: UL 497B-certified TVS on isolated side of transformer-coupled data line to suppress common-mode surges crossing the barrier. Use Value: Maintains creepage/clearance integrity while meeting IEC 60601-1 surge immunity requirements without compromising patient safety certification. |
| Numerical Control System I/O Protection | Business Machine Communication Port Clamp |
Use Scenario: 24 V sensor input channel on CNC machine motion controller subject to cable-borne transients from nearby servo motor switching. IC Role / Device Role / Timing Role: Standoff TVS mounted directly at connector entry point to intercept surges before reaching precision ADC input buffer. Use Value: Sub-ns response limits voltage excursion to <22 V, preserving 24 V rail tolerance and avoiding ADC saturation or latch-up. |
Use Scenario: RS-232 interface on multifunction printer exposed to ESD events during cable insertion and environmental surges. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) unidirectional TVS on TX/RX lines referenced to local ground, minimizing baseline offset in ±12 V signaling. Use Value: Prevents false start-bit detection and UART framing errors caused by transient-induced line perturbation during hot-plug operations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A | Surface-mount SMA package (vs. axial); 200 W PPK rating; 23.0 V VC @ 10.3 A | Requires PCB redesign for SMT placement; lower surge margin for 8.3 ms pulses | Select when board space is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| P6KE13A | DO-15 package; 600 W PPK; 20.0 V VC @ 30 A; higher IR (5 µA @ 13 V) | Higher clamping margin but greater leakage may affect high-impedance analog sensing nodes | Prefer where peak surge energy exceeds 500 W and leakage sensitivity is low |
Compared with SMAJ13A and P6KE13A, the SA13AG provides optimal balance of axial-leaded mechanical robustness, UL 497B certification for isolated systems, and precise 21.5 V clamping at 13 A - making it preferred for medical and industrial applications requiring regulatory traceability and through-hole reliability.
Availability
SA13AG is available at Aetrix Electronics and suitable for industrial power supplies, medical equipment, numerical controls, and communication systems requiring stable component supply with full regulatory documentation and long-term lifecycle support.
Supply support for SA13AG 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 manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The SA13AG belongs to the SA5.0A Series MiniMOSORB TVS family, engineered specifically for high-reliability transient suppression in safety-critical and regulated environments - emphasizing UL recognition, low clamping variance, and consistent surge endurance.
FAQ
What is the clamping voltage of the SA13AG at its rated peak pulse current?
The SA13AG has a maximum clamping voltage (VC) of 21.5 V at 13 A peak pulse current (IPP), measured using the standard 8.3 ms half-sine waveform defined in the datasheet. This value ensures protected circuits remain below critical overvoltage thresholds during surge events. The SA13AG's low dynamic impedance contributes to tight clamping consistency across production lots.
Is the SA13AG certified for use in medical equipment with isolation barriers?
Yes, the SA13AG carries UL 497B recognition (File #E210057, QVGQ2 category) specifically for isolated loop circuit protection - a requirement for many IEC 60601-1 compliant medical devices. This certification covers dielectric withstand, endurance conditioning, and strike voltage tests, distinguishing it from generic TVS diodes lacking system-level safety validation.
Does the SA13AG have a Pb-free construction?
Yes, the "G" suffix in SA13AG explicitly denotes a Pb-free Surmetic axial package compliant with RoHS Directive 2011/65/EU. Lead finish is matte tin, qualified for lead-free reflow profiles up to 260°C for 10 seconds at 1/16 inch from the case body, per onsemi's Soldering and Mounting Techniques Reference Manual.
How does the SA13AG's thermal derating behave above 50°C?
The SA13AG's steady-state power dissipation is derated linearly from 3.0 W at 25°C lead temperature to zero at 125°C, with a slope of 30 mW/°C above 50°C. This derating curve (Figure 5 in the datasheet) must be applied when calculating safe operating area in enclosed industrial enclosures where lead temperature may exceed ambient by >25°C.
Can the SA13AG replace the SA12AG or SA15AG in an existing design?
The SA13AG is not a direct replacement for SA12AG (12 V VRWM) or SA15AG (15 V VRWM) due to different working voltage ratings and corresponding clamping voltages (21.5 V vs. 19.9 V and 24.4 V). Substitution requires verification that the 13 V VRWM aligns with the protected circuit's normal operating voltage margin and that 21.5 V clamping remains within downstream component tolerances.
SA13AG 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 23.2A
- 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
SA13AG FAQ
1.How can I place an order for SA13AG through Aetrix?
Please submit a Request for Quotation (RFQ) for SA13AG 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 SA13AG reliable?
The price and inventory of SA13AG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA13AG is usually 5 days.
3.What payment methods are accepted for SA13AG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA13AG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA13AG?
SA13AG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA13AG 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 SA13AG?
For technical support, including SA13AG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA13AG requirements.
6.How does Aetrix verify that SA13AG is sourced from the original manufacturer or authorized distributors?
All SA13AG 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 SA13AG meets industry standards.
7.What is the process for return or replacement of SA13AG?
All SA13AG units undergo pre-shipment inspection (PSI). If there is an issue with SA13AG, 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 SA13AG part is unused and in its original packaging.
Return procedure for SA13AG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA13AG Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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