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onsemi SA5.0ARLG
- Part No.:
- SA5.0ARLG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA5.0ARLG.pdf
- Description:
- TVS DIODE 5VWM 9.2VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:143,766
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Product details
Overview
SA5.0ARLG from onsemi is a unidirectional 500 W peak power MiniMOSORB Zener transient voltage suppressor (TVS) designed for clamping high-energy transients in DC power rails and signal lines. It features a 5.0 V working peak reverse voltage (VRWM), 9.2 V clamping voltage at 54.3 A peak pulse current, and <1.0 ns response time. It is used in power supply input protection and industrial control I/O interfaces.
For engineers reviewing the SA5.0ARLG datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected circuit's maximum operating voltage, surge current capability under 1 ms pulses, UL 497B certification for isolated loop systems, and axial leaded Surmetic package compatibility with through-hole reflow or wave soldering.
Technical Context
The SA5.0ARLG operates as a unidirectional Zener-based TVS diode, conducting only during negative transients relative to its anode–cathode polarity. Its clamping behavior is defined by a 6.4–7.0 V breakdown voltage (VBR) at 10 mA test current and a maximum 9.2 V clamping voltage (VC) at 54.3 A IPP under 1 ms pulse conditions.
It exhibits low zener impedance and fast response (<1.0 ns), enabling effective suppression of ESD (Class 3, >16 kV HBM) and lightning-induced surges. Thermal resistance is 33.3 °C/W (junction-to-lead), with steady-state power dissipation derated above 75 °C ambient and validated for operation from −55 °C to +175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Power | 500 W @ 1.0 ms pulse - withstands high-energy transients without failure |
| Working Peak Reverse Voltage | 5.0 V - sets minimum DC operating voltage threshold before conduction |
| Clamping Voltage | 9.2 V @ 54.3 A - limits voltage seen by downstream ICs during surge events |
| Breakdown Voltage | 6.4–7.0 V @ 10 mA - defines precise Zener turn-on range for predictable triggering |
| Response Time | <1.0 ns - ensures suppression before sensitive logic or analog circuits are damaged |
| ESD Rating | Class 3 (>16 kV HBM) - meets stringent electrostatic discharge immunity requirements |
| UL Recognition | UL 497B (QVGV2) - certified for isolated loop circuit protection in safety-critical systems |
Pinout & Package
SA5.0ARLG is housed in ON Semiconductor's Surmetic axial-leaded plastic package (Case 59AA), equivalent to DO-204AC/DO-15. The cathode is marked by a polarity band; leads are tin-plated, solderable, and rated for 230 °C for 10 seconds at 1/16 in. from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive reference terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Transient conduction terminal | Connected to protected line; conducts surge current to anode when reverse voltage exceeds VRWM |
Key Features
| Feature | Design Value |
|---|---|
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on protected components while maintaining robust surge handling |
| Thermally optimized Surmetic package | Enables 3.0 W steady-state dissipation at 75 °C lead temperature with 33.3 °C/W junction-to-lead thermal resistance |
| Pb-free RoHS-compliant construction | Meets global environmental compliance requirements without sacrificing surge performance or reliability |
| UL 497B recognition for isolated loops | Validates suitability in telecom, process control, and medical equipment where galvanic isolation integrity is critical |
Applications
| Power Supply Input Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 5 V DC input rail of AC/DC adapter exposed to load dump and coupling transients in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between VIN and GND to clamp positive-going surges above 5 V. Use Value: Limits transient voltage to ≤9.2 V, protecting downstream DC-DC converters and microcontrollers rated for 6.5 V absolute max. | Use Scenario: Digital input channel of programmable logic controller receiving 24 V DC signals from field sensors. IC Role / Device Role / Timing Role: Standoff TVS connected across input terminals to absorb inductive kickback and EFT bursts. Use Value: Withstands 54.3 A pulses without degradation, ensuring long-term reliability in harsh industrial environments. |
| Medical Equipment Signal Line Protection | Telecom Isolated Loop Interface |
Use Scenario: RS-232 or CAN bus interface in diagnostic imaging device requiring ESD immunity per IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Primary-level TVS on signal line to shunt ESD energy before entering level-shifting or isolation circuitry. Use Value: Class 3 HBM rating (>16 kV) and sub-nanosecond response prevent latch-up or gate oxide damage in interface ICs. | Use Scenario: 4–20 mA current loop transmitter in building management system with UL 497B-mandated isolation barrier. IC Role / Device Role / Timing Role: UL-recognized TVS placed on loop-side terminals to protect against surge coupling across isolation boundary. Use Value: UL 497B certification confirms compliance with isolation integrity testing including dielectric withstand and endurance conditioning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Surface-mount SMA package (vs. axial lead); same 5.0 V VRWM, but 9.2 V VC @ 43.4 A IPP (lower surge rating) | Designed for automated SMT assembly; unsuitable for manual through-hole or high-vibration mechanical mounting | Select SMAJ5.0A only when board space and assembly method prioritize SMT over axial reliability and thermal mass |
| P6KE5.0A | Legacy 600 W peak power rating; identical VRWM and VBR range, but higher 10.5 V clamping voltage at 52.4 A IPP | Used in legacy designs with larger PCB footprints; lacks UL 497B recognition and Pb-free option | Choose P6KE5.0A only if UL certification is not required and existing layout accommodates DO-15 footprint with higher clamping margin |
Compared with SMAJ5.0A and P6KE5.0A, the SA5.0ARLG delivers superior surge current handling (54.3 A vs. 43.4 A / 52.4 A) and certified isolation-loop protection (UL 497B), making it optimal for new industrial and medical designs requiring both robustness and regulatory compliance.
Availability
SA5.0ARLG is available at Aetrix Electronics and suitable for power supply input protection, industrial PLC I/O protection, and medical equipment signal line protection requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for SA5.0ARLG 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 specializing in energy-efficient, high-reliability silicon solutions for automotive, industrial, cloud, and medical markets.
The SA5.0A Series belongs to onsemi's MiniMOSORB transient voltage suppressor product line, engineered specifically for high-surge, low-clamping protection of DC power rails and isolated communication interfaces in demanding environments.
FAQ
What is the clamping voltage of SA5.0ARLG and how is it measured?
The SA5.0ARLG has a maximum clamping voltage (VC) of 9.2 V, measured at a peak pulse current (IPP) of 54.3 A under a 1.0 ms exponential waveform per Figure 4 in the datasheet. This value represents the upper voltage limit imposed on the protected circuit during worst-case surge events, ensuring downstream components remain within safe operating voltage ranges.
Is SA5.0ARLG certified for use in isolated loop applications?
Yes, SA5.0ARLG carries UL 497B recognition (File #E116110, QVGV2 category) for isolated loop circuit protection. This certification validates successful completion of strike voltage breakdown, dielectric withstand, endurance conditioning, and discharge tests-making SA5.0ARLG suitable for 4–20 mA loops and other galvanically isolated interfaces in telecom and process control systems.
What does the "RLG" suffix mean in SA5.0ARLG?
The "RLG" suffix in SA5.0ARLG indicates a Pb-free (RoHS-compliant), tape-and-reel packaged version with 5000 units per reel. The "R" denotes tape-and-reel, "L" specifies axial lead form, and "G" confirms lead-free termination-consistent with onsemi's environmental compliance program and compatible with standard through-hole assembly processes.
How does SA5.0ARLG differ from bidirectional TVS diodes like CA5.0A?
SA5.0ARLG is unidirectional and functions only during reverse-biased transients (anode negative relative to cathode), making it ideal for DC rail protection. In contrast, CA5.0A is bidirectional and clamps both polarities-used in AC lines or data lines with no fixed polarity. SA5.0ARLG offers tighter VBR tolerance and lower clamping voltage for DC applications, while CA5.0A provides symmetrical protection essential for balanced signaling.
What is the thermal derating behavior of SA5.0ARLG above 75°C?
SA5.0ARLG's steady-state power dissipation (PD) is rated at 3.0 W up to 75°C lead temperature, then derated linearly at 30 mW/°C beyond that point. At 100°C lead temperature, PD drops to 2.25 W. This derating is defined in Figure 5 of the datasheet and must be applied in thermally constrained enclosures or high-ambient environments to ensure long-term reliability.
SA5.0ARLG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- MiniMosorb™
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- 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
SA5.0ARLG FAQ
1.How can I place an order for SA5.0ARLG through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5.0ARLG 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 SA5.0ARLG reliable?
The price and inventory of SA5.0ARLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5.0ARLG is usually 5 days.
3.What payment methods are accepted for SA5.0ARLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5.0ARLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5.0ARLG?
SA5.0ARLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5.0ARLG 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 SA5.0ARLG?
For technical support, including SA5.0ARLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5.0ARLG requirements.
6.How does Aetrix verify that SA5.0ARLG is sourced from the original manufacturer or authorized distributors?
All SA5.0ARLG 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 SA5.0ARLG meets industry standards.
7.What is the process for return or replacement of SA5.0ARLG?
All SA5.0ARLG units undergo pre-shipment inspection (PSI). If there is an issue with SA5.0ARLG, 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 SA5.0ARLG part is unused and in its original packaging.
Return procedure for SA5.0ARLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA5.0ARLG Tags
-
ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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