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onsemi SA10ARL
- Part No.:
- SA10ARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA10ARL.pdf
- Description:
- TVS DIODE 10VWM 17VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,825
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Product details
Overview
SA10ARL from ON Semiconductor is a unidirectional 500 W peak power MiniMOSORB Zener transient voltage suppressor (TVS) designed to protect sensitive electronics against high-energy transients. It features a 10 V working peak reverse voltage (VRWM), clamps at 17 V @ 29.4 A IPP, exhibits <1 µA leakage at VRWM, and responds in <1.0 ns - deployed in industrial power supplies and communication interfaces.
For engineers reviewing the SA10ARL datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected IC VDD, surge current capability under 1 ms pulse, UL 497B certification for isolated loop protection, and axial leaded Surmetic package compatibility with through-hole reflow or hand-soldering processes.
Technical Context
The SA10ARL operates as a unidirectional Zener-based TVS diode, conducting only during negative transients relative to its cathode-banded polarity. Its breakdown voltage (VBR) is specified at 11.1–12.3 V @ 1 mA test current, with a maximum clamping voltage of 17 V at 29.4 A peak pulse current per the 1.0 ms standard waveform.
Thermal design relies on junction-to-lead resistance of 33.3 °C/W and steady-state power derating above 75 °C ambient; it meets UL 497B for isolated loop circuit protection and carries ESD Class 3 (>16 kV HBM) rating - critical for medical equipment and industrial control I/O stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 10 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system DC rail margin. |
| VBR @ IT=1 mA | 11.1–12.3 V - Confirmed Zener breakdown range; ensures predictable turn-on threshold across temperature. |
| VC @ IPP=29.4 A | 17 V - Clamped voltage during 1 ms transient; must stay below protected device absolute max rating. |
| IPP | 29.4 A - Peak pulse current handling at rated clamping; defines surge immunity level per IEC 61000-4-5. |
| Leakage @ VRWM | <1 µA - Negligible standby current draw; avoids loading low-power sensor or reference circuits. |
| Response Time | <1.0 ns - Fast enough to suppress ESD and lightning-induced fast edges before downstream IC damage. |
| UL Recognition | UL 497B QVGV2 - Certified for isolated loop protection; satisfies safety compliance without additional external components. |
Pinout & Package
SA10ARL uses the axial-leaded Surmetic plastic package (Case 59AA), with cathode identified by a band. Leads are solderable, corrosion-resistant, and rated for 260 °C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance return plane; completes clamping loop during overvoltage events. |
| Cathode | Protected line connection | Connected to the signal or power line being safeguarded; polarity band must face positive supply side. |
Key Features
| Feature | Design Value |
|---|---|
| 500 W peak pulse power | Handles 1 ms surges up to 29.4 A without degradation - suitable for telecom line interface and AC/DC front-end protection. |
| UL 497B recognition | Validated for isolated loop protection in safety-critical systems like medical isolation barriers and process control analog inputs. |
| ESD Class 3 (>16 kV HBM) | Withstands human-body model discharges without parameter shift - essential for field-serviceable industrial terminals. |
| Pb-Free Surmetic package | RoHS-compliant axial lead construction with void-free molding; supports automated through-hole insertion and lead tinning. |
| Low zener impedance | Ensures stable clamping under varying surge currents - minimizes voltage overshoot during multi-pulse stress testing. |
Applications
| Industrial Power Supply Input Protection | RS-485/422 Communication Line Protection |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24 V rail and chassis ground to clamp positive-going surges. Use Value: 17 V clamping voltage prevents MOSFET gate oxide rupture and maintains regulator input integrity during 500 W transient events. |
Use Scenario: Differential data lines of factory-floor RS-485 transceivers subject to ESD and cable discharge events. IC Role / Device Role / Timing Role: One SA10ARL per line (A and B), cathode to VCC, anode to ground - providing common-mode surge suppression. Use Value: Sub-1 ns response captures fast ESD edges before transceiver input latch-up; UL 497B enables certified isolation barrier compliance. |
| Medical Equipment Isolated Sensor Interface | Automated Test Equipment (ATE) Signal Conditioning Input |
Use Scenario: Analog front-end of patient-connected ECG amplifier with reinforced isolation barrier and low-noise signal chain. IC Role / Device Role / Timing Role: SA10ARL placed on secondary-side analog supply rail to protect op-amps and ADC references from coupling transients. Use Value: <1 µA leakage avoids offset drift in µV-level biopotential measurements; UL 497B validates use in certified patient-isolation circuits. |
Use Scenario: High-impedance voltage measurement channel in benchtop multimeter exposed to accidental probe shorts and static discharge. IC Role / Device Role / Timing Role: TVS mounted directly at BNC connector entry point, shunting transients before precision attenuator network. Use Value: 10 V VRWM aligns with ±12 V op-amp rails; 17 V clamping preserves 16-bit ADC full-scale range during 29.4 A surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Surface-mount SMA package (JEDEC DO-214AC); 10 V VRWM, 17.0 V VC @ 24.1 A IPP; lower peak power (400 W). | Requires PCB redesign for SMT placement; better suited for space-constrained digital I/O boards than high-surge industrial power stages. | Select when board area is limited and surge duty is ≤400 W; verify thermal pad layout for 3.0 W steady-state dissipation. |
| P6KE10A | Axial DO-15 package; 10 V VRWM, 17.0 V VC @ 27.5 A IPP; same 500 W rating but higher leakage (5 µA @ VRWM). | Compatible mechanical fit in legacy through-hole designs; lacks UL 497B recognition and ESD Class 3 rating. | Use where UL certification is not required and higher leakage is acceptable; avoid in battery-powered or ultra-low-power sensor nodes. |
Compared with SMAJ10A and P6KE10A, SA10ARL uniquely combines axial leaded reliability, UL 497B certification, and Class 3 ESD robustness - making it preferred for medical, industrial control, and safety-critical power supply protection where regulatory validation and surge margin are non-negotiable.
Availability
SA10ARL is available at Aetrix Electronics and suitable for industrial power supplies, RS-485 communication interfaces, and medical sensor front-ends requiring stable component supply, long-term lifecycle support, and certified transient protection.
Supply support for SA10ARL 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 (now part of onsemi) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The SA5.0A Series - including SA10ARL - belongs to ON Semiconductor's MiniMOSORB transient voltage suppressor family, engineered specifically for robust, standards-certified overvoltage protection in harsh industrial and safety-critical environments.
FAQ
What is the maximum clamping voltage of SA10ARL under surge conditions?
The SA10ARL clamps at a maximum of 17 V when subjected to its rated peak pulse current of 29.4 A (1.0 ms waveform). This value is measured per Figure 4 in the official datasheet and defines the upper voltage limit imposed on protected circuitry during transient events. Maintaining this clamping level ensures compatibility with 12 V logic and analog rails while preserving margin against absolute maximum ratings of downstream ICs. The SA10ARL achieves this performance consistently across its qualified temperature range.
Does SA10ARL meet UL 497B requirements for isolated loop protection?
Yes, SA10ARL is explicitly listed under UL 497B (File #E116110, QVGV2 classification) for isolated loop circuit protection - confirmed in the "UL RECOGNITION" section of the SA5.0A/D datasheet. This certification covers validated performance in strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing. Unlike generic TVS diodes, SA10ARL's UL 497B recognition eliminates the need for supplemental safety components in medical and industrial isolation barriers. The SA10ARL documentation confirms applicability across the full SA5.0A–SA170A series.
What is the polarity configuration and physical marking of SA10ARL?
SA10ARL is a unidirectional TVS diode with cathode indicated by a visible polarity band on the axial Surmetic package (Case 59AA). The banded end connects to the protected line (e.g., +12 V rail), while the unbanded end (anode) connects to ground. This orientation ensures conduction only during positive transients relative to ground. Mechanical drawings confirm band position per JEDEC DO-41 outline standards, and the marking "SA10A" appears adjacent to the band. Correct polarity installation is mandatory to achieve specified clamping behavior - reverse connection disables protection.
Can SA10ARL be used in high-reliability automotive applications?
SA10ARL is not AEC-Q200 qualified and is not recommended for automotive powertrain or safety-critical ADAS systems. Its operating temperature range (–55 °C to +175 °C) and surge capability meet industrial-grade requirements, but it lacks automotive-specific qualification, PPAP documentation, and zero-defect screening. For infotainment or body electronics with less stringent reliability demands, SA10ARL may serve as a cost-effective alternative - however, onsemi's AEC-Q200-qualified NUP series or SMAJ-AEC variants are preferred for production automotive designs. SA10ARL remains optimal for industrial PLCs, medical devices, and telecom infrastructure.
What is the thermal resistance and steady-state power rating of SA10ARL?
SA10ARL has a junction-to-lead thermal resistance (RJL) of 33.3 °C/W and a steady-state power dissipation (PD) of 3.0 W at lead temperature (TL) ≤75 °C, derating linearly above that point. This means sustained power dissipation must remain below 3.0 W unless heatsinking or airflow reduces lead temperature - critical for applications like continuously powered industrial sensors. The 33.3 °C/W RJL value guides thermal interface design when mounting to metal chassis or heat-spreading copper pours. SA10ARL's thermal specs are validated per Figure 5 in the datasheet and assume 3/8″ lead length.
SA10ARL 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):
- 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
SA10ARL FAQ
1.How can I place an order for SA10ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for SA10ARL 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 SA10ARL reliable?
The price and inventory of SA10ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA10ARL is usually 5 days.
3.What payment methods are accepted for SA10ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA10ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA10ARL?
SA10ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA10ARL 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 SA10ARL?
For technical support, including SA10ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA10ARL requirements.
6.How does Aetrix verify that SA10ARL is sourced from the original manufacturer or authorized distributors?
All SA10ARL 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 SA10ARL meets industry standards.
7.What is the process for return or replacement of SA10ARL?
All SA10ARL units undergo pre-shipment inspection (PSI). If there is an issue with SA10ARL, 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 SA10ARL part is unused and in its original packaging.
Return procedure for SA10ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA10ARL Tags
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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