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onsemi SA5.0ARL
- Part No.:
- SA5.0ARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA5.0ARL.pdf
- Description:
- TVS DIODE 5VWM 9.2VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,878
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Product details
Overview
SA5.0ARL from ON Semiconductor 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 maximum clamping voltage at 54.3 A peak pulse current, <1.0 ns response time, and UL 497B recognition for isolated loop circuit protection. It is used in power supplies, medical equipment, and industrial controls to safeguard sensitive ICs from ESD and surge events.
For engineers reviewing the SA5.0ARL datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, VRWM alignment with steady-state operating voltage, surge current capability under 1.0 ms waveform, and axial leaded Surmetic package compatibility with through-hole PCB assembly and thermal derating constraints.
Technical Context
The SA5.0ARL operates as a unidirectional Zener-based TVS diode, conducting only during reverse overvoltage events above its breakdown voltage (6.4–7.0 V at 10 mA). Its low zener impedance and fast sub-nanosecond response enable effective suppression of ESD (≥16 kV HBM) and lightning-induced surges per IEC 61000-4-5.
It is rated for 500 W nonrepetitive peak power at TL ≤ 25°C with thermal resistance of 33.3°C/W junction-to-lead, and supports steady-state dissipation up to 3.0 W at TL = 75°C. The device uses an axial-leaded Surmetic plastic package (Case 59AA) with cathode band polarity marking and Pb-free construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins; must exceed system's normal DC rail voltage. |
| VBR (min/typ/max) | 6.4 / 6.7 / 7.0 V @ 10 mA - Breakdown threshold range defining turn-on consistency across production units. |
| VC @ IPP | 9.2 V @ 54.3 A - Clamping voltage under 1.0 ms surge; determines maximum stress on downstream components. |
| IPP | 54.3 A - Peak pulse current supported at rated clamping voltage; defines surge energy handling (≈27 J). |
| Response time | <1.0 ns - Enables protection against fast-rising ESD and switching transients before damage occurs. |
| Leakage current | <1 μA @ 8.5 V - Ensures minimal standby power loss and no interference with low-current sensing circuits. |
| UL 497B | Recognized for isolated loop circuit protection - Validates compliance for telecom and industrial safety-critical interfaces. |
Pinout & Package
SA5.0ARL is housed in an axial-leaded Surmetic plastic package (JEDEC DO-41 compatible, Case 59AA), with cathode identified by a colored band. Leads are corrosion-resistant, solderable, and rated for 260°C for 10 seconds at 1/16 inch from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in unidirectional TVS configuration. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line; conducts when reverse voltage exceeds VBR, shunting surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 500 W peak pulse power | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation. |
| ESD rating >16 kV HBM | Meets or exceeds Class 3 ESD immunity requirements for end-equipment qualification. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during clamping, reducing risk to downstream logic and analog ICs. |
| Pb-free Surmetic axial package | Enables RoHS-compliant through-hole assembly with proven long-term reliability and moisture resistance. |
| UL 497B recognition | Validates suitability for safety-critical isolated interfaces in medical and industrial systems. |
Applications
| Industrial Power Supply Protection | Medical Equipment Input Stage |
|---|---|
Use Scenario: Protecting 5 V DC input rails in programmable logic controllers (PLCs) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input rail and chassis ground to divert surge current away from regulator ICs and microcontrollers. Use Value: Limits transient voltage to ≤9.2 V, preserving operation of 5.5 V-rated LDOs and ensuring system uptime during factory floor electrical disturbances. |
Use Scenario: Safeguarding patient-connected sensor inputs in diagnostic ultrasound systems from ESD and defibrillator-induced coupling. IC Role / Device Role / Timing Role: Front-end transient suppressor on isolated analog front-end (AFE) supply lines, upstream of instrumentation amplifiers. Use Value: UL 497B certification confirms compliance with medical isolation barrier requirements while maintaining <1 μA leakage to avoid signal offset errors. |
| Communication Interface Protection | Business Machine DC Bus |
Use Scenario: Shielding RS-485 transceiver VCC pins in industrial gateways exposed to long cable runs and ground potential differences. IC Role / Device Role / Timing Role: Local rail clamp on 5 V supply feeding half-duplex transceivers, coordinated with common-mode chokes. Use Value: Sub-ns response ensures clamping initiates before transceiver latch-up occurs, preventing bus lockup during field surges. |
Use Scenario: Securing 5 V logic rails in multifunction printers during motor startup and relay switching events. IC Role / Device Role / Timing Role: Point-of-load TVS on main controller board, mounted near DC-DC converter output capacitor. Use Value: 54.3 A IPP rating handles repetitive 30 A inrush spikes without parametric shift, extending product service life. |
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 | Same VRWM (5.0 V) and VC (9.2 V), but SMC package (surface-mount); 400 W peak power rating. | Requires rework for PCB layout; better suited for space-constrained designs with automated assembly. | Select SMAJ5.0A only if board real estate is limited and thermal management via copper pour is feasible. |
| P6KE5.0A | Same DO-41 axial package and VRWM, but lower peak power (600 W), higher VC (12.7 V), and no UL 497B recognition. | Lacks safety certification for medical/isolated loops; higher clamping voltage risks marginal ICs. | Choose P6KE5.0A only for cost-sensitive non-certified consumer applications where clamping margin is sufficient. |
Compared with SMAJ5.0A and P6KE5.0A, the SA5.0ARL uniquely combines UL 497B certification, 500 W surge capability in an axial package, and tight 9.2 V clamping-making it the preferred choice for certified industrial and medical power rail protection where through-hole mounting and regulatory compliance are mandatory.
Availability
SA5.0ARL is available at Aetrix Electronics and suitable for industrial power supplies, medical diagnostic equipment, and communication interface protection requiring stable component supply and long-term manufacturability.
Supply support for SA5.0ARL 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 power management, analog, sensors, and discrete devices for automotive, industrial, and cloud power applications.
The SA5.0ARL belongs to the MiniMOSORB TVS series, engineered specifically for high-reliability transient suppression in safety-critical and regulated environments such as medical, telecom, and industrial control systems.
FAQ
What is the maximum clamping voltage of the SA5.0ARL under surge conditions?
The SA5.0ARL has a maximum clamping voltage (VC) of 9.2 V at 54.3 A peak pulse current (IPP), measured using the 1.0 ms exponential waveform defined in Figure 4 of the datasheet. This value ensures protected circuits remain below critical overvoltage thresholds during standardized surge events, and is guaranteed across temperature and production lot variations.
Is the SA5.0ARL suitable for bidirectional signal line protection?
No, the SA5.0ARL is a unidirectional TVS diode and must be used only in DC-biased applications where reverse polarity is not expected. For bidirectional protection (e.g., AC lines or data buses), ON Semiconductor offers the CA-series counterparts like SA5.0CA. Using SA5.0ARL on bidirectional signals may result in forward conduction and failure during negative excursions.
Does the SA5.0ARL meet RoHS and REACH requirements?
Yes, the SA5.0ARL carries the "RL" suffix indicating a Pb-free Surmetic axial package compliant with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE, and full material declarations are available upon request from ON Semiconductor.
How does the SA5.0ARL's thermal performance compare to surface-mount alternatives?
The SA5.0ARL's axial package provides superior thermal dissipation compared to most SMD TVS diodes due to its 33.3°C/W junction-to-lead thermal resistance and direct lead heat sinking. At TL = 75°C, it sustains 3.0 W steady-state power-higher than typical SMA/SMB packages-making it ideal for high-ambient industrial enclosures where airflow is limited.
Can the SA5.0ARL replace the P6KE5.0A in existing designs without modification?
No PCB changes are required for mechanical fit-the SA5.0ARL uses the same DO-41 axial footprint as P6KE5.0A-but design validation is essential. While both share VRWM and package, SA5.0ARL offers lower clamping voltage (9.2 V vs. 12.7 V), UL 497B certification, and tighter VBR tolerance. System-level testing under surge conditions is recommended before substitution.
SA5.0ARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- MiniMosorb™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
SA5.0ARL FAQ
1.How can I place an order for SA5.0ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5.0ARL 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 SA5.0ARL reliable?
The price and inventory of SA5.0ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5.0ARL is usually 5 days.
3.What payment methods are accepted for SA5.0ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5.0ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5.0ARL?
SA5.0ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5.0ARL 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 SA5.0ARL?
For technical support, including SA5.0ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5.0ARL requirements.
6.How does Aetrix verify that SA5.0ARL is sourced from the original manufacturer or authorized distributors?
All SA5.0ARL 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 SA5.0ARL meets industry standards.
7.What is the process for return or replacement of SA5.0ARL?
All SA5.0ARL units undergo pre-shipment inspection (PSI). If there is an issue with SA5.0ARL, 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 SA5.0ARL part is unused and in its original packaging.
Return procedure for SA5.0ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA5.0ARL Tags
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