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onsemi SA10CA
- Part No.:
- SA10CA
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA10CA.pdf
- Description:
- TVS DIODE 10VWM 17VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:2,993
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Product details
Overview
SA10CA from Fairchild Semiconductor is a bidirectional 500 W transient voltage suppressor (TVS) diode in DO-15 package, designed for clamping ESD and surge transients in power and signal lines. It features a 10 V reverse stand-off voltage (VRWM), 11.1–12.3 V breakdown voltage (VBR), 17.0 V clamping voltage at 29.4 A peak pulse current, and operates up to +175 °C junction temperature.
For engineers reviewing the SA10CA datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DO-15 terminal mapping, bidirectional clamping behavior, thermal derating curves, and direct alternatives for overvoltage protection in industrial power supplies, automotive ECUs, and telecom interfaces.
Technical Context
The SA10CA implements a glass-passivated PN junction optimized for fast transient response (<5.0 ns for bidirectional operation) and low incremental surge resistance. Its unidirectional counterpart is SA10A; the "C" suffix explicitly denotes bidirectional symmetry with identical electrical characteristics in both polarities.
Rated for 500 W peak pulse power on the 10/1000 μs waveform, it sustains 70 A non-repetitive forward surge current (IFSM) and exhibits ≤1.0 μA reverse leakage at VRWM, enabling reliable protection in DC-biased or AC-coupled circuits without significant standby power penalty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 500 W - supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) |
| Reverse Stand-off Voltage (VRWM) | 10 V - maximum continuous operating voltage before clamping begins |
| Breakdown Voltage (VBR) | 11.1–12.3 V at 1.0 mA - defines onset of avalanche conduction with tight tolerance |
| Clamping Voltage (VC) | 17.0 V at 29.4 A IPPM - limits downstream voltage stress during surge events |
| Reverse Leakage (IR) | ≤1.0 μA at 10 V - negligible standby current in protected circuits |
| Junction Temperature Range | –65 to +175 °C - suitable for under-hood automotive and industrial environments |
| Package | DO-15 - industry-standard axial leaded package with cathode band omitted (bidirectional) |
Pinout & Package
SA10CA uses the DO-15 axial-leaded package with no polarity marking (bidirectional device); both leads are electrically symmetric and interchangeable. Leads are 0.375" long for standard PCB mounting and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Either terminal serves as input/output; bidirectional clamping enables placement across AC lines or floating nodes without orientation constraints |
| Lead 1 / Lead 2 | Thermal and mechanical interface | 0.375" tinned copper leads provide mechanical anchoring and conduct heat to PCB copper; no dedicated heatsink required below 1 W steady-state dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enhances moisture resistance and long-term reliability in humid or contaminated environments |
| Fast response time | ≤5.0 ns turn-on for bidirectional transients - protects sensitive ICs before damage threshold is exceeded |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR = 5.7 V) and higher energy absorption per unit voltage overshoot |
| Stable clamping over temperature | VBR drift <±0.05%/°C ensures consistent protection margin across –65 to +175 °C operating range |
| JEDEC-compliant surge rating | 70 A IFSM (8.3 ms half-sine) validates robustness against repetitive line surges in AC mains applications |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) CAN Bus Lines |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power supply exposed to load dump and inductive switching transients. IC Role / Device Role: Primary overvoltage clamp placed across input terminals before bulk capacitor and upstream regulator. Use Value: Limits transient voltage to ≤17.0 V, preventing damage to 24 V-rated input-stage MOSFETs and enabling use of lower-voltage, cost-optimized components. |
Use Scenario: Bidirectional protection on differential CAN_H/CAN_L pair in vehicle BCM subject to ISO 16750-2 load dump and ESD. IC Role / Device Role: Common-mode TVS pair (one SA10CA across each line-to-ground, or single SA10CA across differential pair if common-mode only). Use Value: Symmetric clamping preserves signal integrity during ±15 kV ESD events while maintaining <1.0 μA leakage to avoid CAN bias current errors. |
| Telecom DSL Line Interface | AC-DC Adapter Secondary-Side Output Protection |
Use Scenario: Protection of ADSL/VDSL line driver/receiver ICs connected to twisted-pair telephone lines susceptible to lightning-induced surges. IC Role / Device Role: Bidirectional TVS placed between tip/ring and ground to shunt common-mode transients. Use Value: 500 W rating handles ITU-T K.20/K.21 surge waveforms; DO-15 footprint allows compact layout near RJ-11 connector. |
Use Scenario: Output overvoltage clamp on 12 V secondary side of wall-mount AC-DC adapter to protect connected devices during feedback loop failure. IC Role / Device Role: Shunt protector across output capacitor, triggered only during fault conditions exceeding 12 V. Use Value: Clamps to 17.0 V within 5 ns, limiting fault energy delivered to downstream USB peripherals or IoT modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA (Bourns) | Same VRWM (10 V), VC = 17.0 V, but SMB package (surface-mount); 600 W rating | Requires PCB rework for SMT vs. through-hole; better high-frequency performance due to lower inductance | Select when board space is constrained and automated assembly is used |
| P6KE10CA (ON Semiconductor) | Same DO-15 package and VRWM; VC = 17.0 V, but 600 W rating and slightly higher IR (5.0 μA) | Identical mounting and layout; higher surge margin suits harsher industrial environments | Select when extended surge endurance beyond IEC 61000-4-5 Level 4 is required |
Compared with SA10CA, SMBJ10CA offers superior high-frequency response and smaller footprint but requires SMT process changes, while P6KE10CA retains DO-15 compatibility with enhanced 600 W surge rating-making it ideal for legacy designs needing upgraded ruggedness without layout revision.
Availability
SA10CA is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom line interfaces, and AC-DC adapter output protection requiring stable component supply and long-term obsolescence management.
Supply support for SA10CA 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
Fairchild Semiconductor was a U.S.-based designer and manufacturer of analog and discrete semiconductors, acquired by ON Semiconductor in 2016; its TVS portfolio remains widely deployed and supported.
The SAxxCA series was engineered specifically for robust, cost-effective bidirectional surge suppression in DC and AC-coupled systems where polarity independence and high-energy handling are critical.
FAQ
What is the clamping voltage of SA10CA at its rated peak pulse current?
The SA10CA clamps to a maximum of 17.0 V when subjected to its rated peak pulse current of 29.4 A on the standardized 10/1000 μs waveform. This value is measured under controlled test conditions per JEDEC standards and represents the upper bound of voltage seen by downstream circuitry during a full-power transient event. The SA10CA maintains this clamping performance across its full operating temperature range.
Is SA10CA unidirectional or bidirectional, and how does that affect circuit placement?
SA10CA is a bidirectional TVS diode, indicated by the "C" suffix. Unlike unidirectional types (e.g., SA10A), it conducts identically in both polarities, eliminating orientation sensitivity during placement. This allows flexible use across AC lines, differential pairs, or floating nodes without concern for anode/cathode alignment-critical for CAN bus or telecom line protection where signal polarity varies.
Can SA10CA replace SA10A in an existing design?
No-SA10CA cannot directly replace SA10A without circuit review. While both share VRWM = 10 V and similar clamping, SA10A is unidirectional and requires correct polarity orientation, whereas SA10CA is bidirectional and has no cathode band. Substituting SA10CA for SA10A may cause unintended conduction in DC-biased circuits; replacement is only valid if the application inherently requires bidirectional protection.
What is the maximum operating temperature for SA10CA, and how does derating work?
The SA10CA has a maximum operating junction temperature of +175 °C and a storage range of –65 to +175 °C. Its steady-state power dissipation derates linearly above +75 °C ambient: from 1.0 W at +75 °C to zero at +175 °C. For pulsed operation, peak pulse power remains 500 W regardless of temperature, but thermal management must ensure junction temperature stays within limit during repeated surges.
Does SA10CA meet any specific industry surge immunity standards?
Yes-the SA10CA's 500 W peak pulse rating on the 10/1000 μs waveform aligns with IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-ground) for surge immunity testing. Its fast response (<5.0 ns) and low clamping voltage also support compliance with ISO 16750-2 (automotive) and Telcordia GR-1089-CORE (telecom) transient requirements when properly integrated with PCB layout and system grounding.
SA10CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
SA10CA FAQ
1.How can I place an order for SA10CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SA10CA 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 SA10CA reliable?
The price and inventory of SA10CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA10CA is usually 5 days.
3.What payment methods are accepted for SA10CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA10CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA10CA?
SA10CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA10CA 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 SA10CA?
For technical support, including SA10CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA10CA requirements.
6.How does Aetrix verify that SA10CA is sourced from the original manufacturer or authorized distributors?
All SA10CA 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 SA10CA meets industry standards.
7.What is the process for return or replacement of SA10CA?
All SA10CA units undergo pre-shipment inspection (PSI). If there is an issue with SA10CA, 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 SA10CA part is unused and in its original packaging.
Return procedure for SA10CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA10CA 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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onsemi
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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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