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Vishay General Semiconductor - Diodes Division SA13C-E3/73
- Part No.:
- SA13C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA13C-E3/73.pdf
- Description:
- TVS DIODE 13VWM 23.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,778
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Product details
Overview
SA13C-E3/73 from Vishay is a bi-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for clamping voltage transients on signal or power lines. It features a 13 V stand-off voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 µs), and clamps to ≤21.5 V at 23.3 A peak pulse current - used in automotive sensor interface protection and industrial I/O line surge suppression.
For engineers reviewing the SA13C-E3/73 datasheet, SA13C-E3/73 pinout, SA13C-E3/73 application, or SA13C-E3/73 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, DO-15 mechanical compatibility, and verified 175 °C junction temperature rating for under-hood and harsh-environment deployments.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both polarities, enabling robust ESD and lightning-induced surge suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, critical for repeatable clamping performance across thermal cycles.
The SA13C-E3/73 complies with AEC-Q101 stress testing for automotive use and supports 8.3 ms half-sine surge waveforms up to 70 A (uni-directional only - not applicable here), while its bi-directional configuration eliminates need for orientation-aware PCB layout in differential or AC-coupled signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry |
| VBR (min/max) | 14.4 V / 15.9 V at 1 mA - tight breakdown range ensures predictable turn-on and minimal overvoltage exposure |
| VC @ IPPM | ≤21.5 V at 23.3 A - clamping voltage limits transient energy delivered to downstream ICs during 10/1000 µs surges |
| PPPM | 500 W - peak pulse power handling capacity per single transient event, validated per R.E.A. 10/1000 µs standard |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserves signal integrity and battery life in always-on sensor interfaces |
| TJ max | 175 °C - extended junction temperature rating enables deployment in engine control units and motor drive enclosures |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with UL 94 V-0 molded epoxy and matte tin-plated leads |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical epoxy body, 0.140" (3.6 mm) diameter, 1.0" (25.4 mm) minimum overall length, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Bi-directional construction means no polarity marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Either terminal serves as avalanche conduction node during overvoltage events in either polarity - no cathode band marking required |
| Lead 1 / Lead 2 | PCB interconnect interface | Matte tin-plated copper leads support wave/solder reflow per JESD 22-B106 (275 °C, 10 s max); 0.375" (9.5 mm) lead length standard |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity stress |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 500 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surge events (4 kV line-earth, 2 kV line-line) without degradation |
| Bi-directional symmetry | Eliminates polarity-dependent layout constraints in AC signal lines, RS-485 buses, and transformer-coupled interfaces |
| UL 94 V-0 molding compound | Provides flame-retardant encapsulation essential for industrial control cabinets and automotive harness assemblies |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Voltage clamping element placed directly at connector entry point to shunt transients before reaching precision ADC front-end. Use Value: Limits induced overvoltage to ≤21.5 V during 10/1000 µs surges, preserving sensor accuracy and preventing MCU reset or latch-up. | Use Scenario: Safeguarding differential data lines in factory automation PLCs communicating over long RS-485 cables subject to EFT and lightning coupling. IC Role / Device Role / Timing Role: Bi-directional TVS pair (one per line) placed adjacent to transceiver IC to clamp common-mode and differential transients. Use Value: Maintains signal integrity by clamping to <22 V within nanoseconds, preventing receiver saturation and bit errors during 4 kV ESD contact discharge. |
| Consumer Appliance Motor Control | Telecom Power Input Stage |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers connected to 12–24 V DC rails. IC Role / Device Role / Timing Role: Primary surge limiter across motor terminals and H-bridge supply rails to protect gate drivers and microcontrollers. Use Value: Absorbs 500 W transient energy without failure, enabling compliance with IEC 61000-4-4 EFT immunity requirements. | Use Scenario: Front-end protection for 48 V telecom power supplies subjected to lightning-induced surges on outdoor distribution lines. IC Role / Device Role / Timing Role: First-stage clamping device upstream of DC-DC converters and hot-swap controllers. Use Value: Clamps 10/1000 µs surges to ≤21.5 V while maintaining <1 µA leakage, minimizing standby power loss and thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13CA | Same VWM (13 V), identical DO-214AC (SMA) package but surface-mount; lower IPPM (23.1 A vs. 23.3 A) and same VC (21.5 V) | Requires SMT reflow process and board real estate optimization; unsuitable for through-hole legacy designs | Select SMAJ13CA only when migrating to compact SMT layouts and full requalification is feasible |
| P6SMB13CA | Same VWM (13 V), DO-214AA (SMB) package; slightly higher VC (21.9 V) and lower PPPM (600 W nominal but derated to ~500 W at TA > 25 °C) | Higher thermal resistance than DO-15; requires additional heatsinking for sustained surge duty | Choose P6SMB13CA if SMB footprint is already standardized and thermal management can be enhanced |
Compared with SMAJ13CA and P6SMB13CA, the SA13C-E3/73 offers proven through-hole mechanical robustness, AEC-Q101 qualification out-of-box, and optimal thermal path via axial leads - making it preferred for high-reliability automotive and industrial field-deployed systems where vibration resistance and manual repairability matter.
Availability
SA13C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and appliance motor control circuits requiring stable component supply and long-term lifecycle assurance.
Supply support for SA13C-E3/73 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, AEC-Q qualification, and application-specific performance.
The SAxxC series is part of Vishay's TRANSZORB® TVS family, engineered specifically for bi-directional transient suppression in automotive, industrial, and telecom infrastructure where polarity-agnostic clamping and high surge endurance are mandatory.
FAQ
What is the breakdown voltage range for SA13C-E3/73?
The SA13C-E3/73 has a guaranteed breakdown voltage (VBR) range of 14.4 V to 15.9 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight ±5 % tolerance ensures consistent clamping behavior across production lots and temperature extremes, critical for protecting sensitive analog front-ends in the SA13C-E3/73's target applications.
Is SA13C-E3/73 qualified for automotive use?
Yes, the SA13C-E3/73 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and ESD per JESD22-A114. This qualification confirms its suitability for under-hood and chassis-mounted automotive modules - a key differentiator versus commercial-grade TVS diodes not bearing the HE3 or CA suffix variants of the SA13C-E3/73.
Does SA13C-E3/73 have polarity markings?
No, the SA13C-E3/73 is a bi-directional TVS diode and carries no cathode band or polarity marking. Its symmetrical construction allows installation in either orientation on PCBs - simplifying assembly and eliminating risk of reverse placement in AC-coupled or differential signal paths where the SA13C-E3/73 is commonly deployed.
What is the maximum clamping voltage of SA13C-E3/73 at rated surge current?
The SA13C-E3/73 clamps to a maximum of 21.5 V at its rated peak pulse current (IPPM) of 23.3 A under 10/1000 µs waveform conditions. This value is specified in the Vishay datasheet (Document Number 88378, page 2) and represents the upper limit of voltage seen by protected circuitry during worst-case transient events involving the SA13C-E3/73.
Can SA13C-E3/73 replace SA13A-E3/73 in existing designs?
No - SA13C-E3/73 is bi-directional while SA13A-E3/73 is uni-directional; they differ in polarity behavior, leakage profile, and application context. Substituting SA13C-E3/73 for SA13A-E3/73 may cause unintended conduction in DC-biased circuits. Always verify circuit topology and transient directionality before interchange, as the SA13C-E3/73 is not a drop-in replacement for the SA13A-E3/73.
SA13C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 21A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA13C-E3/73 FAQ
1.How can I place an order for SA13C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA13C-E3/73 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 SA13C-E3/73 reliable?
The price and inventory of SA13C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA13C-E3/73 is usually 5 days.
3.What payment methods are accepted for SA13C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA13C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA13C-E3/73?
SA13C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA13C-E3/73 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 SA13C-E3/73?
For technical support, including SA13C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA13C-E3/73 requirements.
6.How does Aetrix verify that SA13C-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA13C-E3/73 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 SA13C-E3/73 meets industry standards.
7.What is the process for return or replacement of SA13C-E3/73?
All SA13C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA13C-E3/73, 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 SA13C-E3/73 part is unused and in its original packaging.
Return procedure for SA13C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA13C-E3/73 Tags
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