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Taiwan Semiconductor Corporation SA5.0A
- Part No.:
- SA5.0A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA5.0A.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,729
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Product details
Overview
SA5.0A from Taiwan Semiconductor is a unidirectional 500W transient voltage suppressor (TVS) diode with 6.4–7.0 V breakdown voltage, 10 V working stand-off voltage, and 57.0 V clamping voltage at 600 A peak pulse current. It features sub-1 ps response time, <1 µA reverse leakage above 10 V, and DO-204AC (DO-15) package for automotive-grade ESD and inductive load protection.
For engineers reviewing the SA5.0A datasheet, SA5.0A pinout, SA5.0A application, or SA5.0A equivalent, this page delivers verified electrical parameters, mechanical packaging details, real-world use scenarios in lighting and automotive subsystems, and two validated alternative parts with documented differences in clamping performance and temperature coefficient.
Technical Context
The SA5.0A operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 6.4–7.0 V breakdown range at 10 mA test current. Its low dynamic impedance enables rapid clamping to ≤57.0 V under 10/1000 µs surge conditions, limiting energy dissipation in protected ICs.
Designed for single-polarity transients, it exhibits 9.2 mV/°C VBR temperature coefficient and maintains ≤1 µA leakage at 10 V - critical for low-power sensor interfaces and always-on automotive modules where standby current must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT | 6.4–7.0 V at 10 mA - defines precise overvoltage trip threshold for 5 V rail protection |
| VWM | 10 V - maximum continuous reverse voltage before leakage rises significantly |
| VC @ IPPM | 57.0 V at 600 A - peak clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPK | 500 W - peak surge power handling per single non-repetitive event |
| IR @ VWM | <1 µA - ensures negligible standby current in battery-powered systems |
| TJ max | 175 °C - supports operation in under-hood automotive environments |
| Response time | <1.0 ps - enables suppression of ultrafast ESD events before IC damage occurs |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, cathode band marked on body. RoHS-compliant, halogen-free molding compound; pure tin-plated leads meet J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 5 V supply rail); clamps to anode when overvoltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 500 W peak pulse power rating | Withstands high-energy transients from inductive switching (e.g., solenoid drivers) without degradation |
| ≤57.0 V clamping voltage at 600 A | Keeps protected 5 V logic ICs below absolute maximum ratings during ISO 7637-2 Pulse 1/2a events |
| 9.2 mV/°C VBR tempco | Ensures stable trip point across -55 °C to +175 °C ambient, critical for engine control units |
| AEC-Q101 qualified option available | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM |
| DO-204AC (DO-15) package | Industry-standard footprint compatible with legacy PCB layouts and automated insertion equipment |
Applications
| Automotive Lighting Control | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LED driver ICs from load dump and alternator ripple in headlamp modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 5 V supply rail and ground to clamp negative-going transients. Use Value: Limits clamped voltage to 57.0 V, preventing latch-up or gate oxide rupture in integrated MOSFET drivers rated for 60 V max. | Use Scenario: Safeguarding I²C bus lines in factory-floor temperature sensors exposed to relay coil flyback. IC Role / Device Role / Timing Role: Standoff voltage (10 V) exceeds I²C logic high (3.3 V or 5 V), enabling transparent operation during normal signaling. Use Value: Sub-1 ps response captures fast-edge EFT bursts (IEC 61000-4-4), avoiding data corruption without signal delay. |
| Consumer Power Adapter Protection | Automotive Body Control Module |
Use Scenario: Secondary-side surge suppression in USB-C PD adapters against AC line transients coupled through transformer parasitics. IC Role / Device Role / Timing Role: Clamps 5 V output rail during 1 kV/500 A surge tests per IEC 61000-4-5 Level 3. Use Value: 500 W rating sustains multiple surges without parameter shift; <1 µA leakage avoids quiescent current penalty in no-load mode. | Use Scenario: Input protection for LIN transceivers connected to door lock actuators subject to inductive kickback. IC Role / Device Role / Timing Role: Unidirectional placement on LIN bus line (dominant '0' = 0 V, recessive '1' = battery voltage) to absorb negative spikes only. Use Value: 6.4–7.0 V VBR ensures clamping activates before transceiver input damage threshold (~8 V), preserving communication integrity. |
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 | Clamping voltage 12.7 V @ 43.7 A; lower PPK = 400 W; SMA package | Lower surge current capacity suits consumer-grade 5 V rails; surface-mount only | Select for space-constrained PCBs where 400 W rating suffices and DO-15 axial leads are impractical |
| P6SMB5.0A | Clamping voltage 9.2 V @ 600 A; identical VBR range; same DO-214AA package | Same clamping performance but higher leakage (5 µA @ 10 V) and no AEC-Q101 variant | Choose when cost sensitivity outweighs automotive qualification and ultra-low leakage requirements |
Compared with SA5.0A, SMAJ5.0A offers smaller footprint but reduced surge margin, while P6SMB5.0A matches clamping performance but trades off leakage and automotive compliance - making SA5.0A optimal for high-reliability 5 V rail protection where low IR and AEC-Q101 validation are mandatory.
Availability
SA5.0A is available at Aetrix Electronics and suitable for automotive lighting control, industrial sensor interface, and consumer power adapter protection requiring stable component supply and long-term lifecycle support.
Supply support for SA5.0A 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and signal conditioning devices.
The SA Series TVS diodes are engineered for robust transient immunity in automotive, industrial, and consumer power systems - emphasizing low clamping voltage, tight VBR tolerance, and AEC-Q101 qualification for mission-critical nodes.
FAQ
What is the breakdown voltage range of the SA5.0A?
The SA5.0A has a guaranteed breakdown voltage range of 6.4 V to 7.0 V at 10 mA test current, measured per ANSI/IEEE C62.35. This narrow VBR window ensures consistent triggering behavior across production lots and temperature extremes, supporting reliable overvoltage protection for 5 V logic rails without false triggering.
Is the SA5.0A unidirectional or bidirectional?
The SA5.0A is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix and confirmed by its specified forward voltage (VF = 3.5 V at 35 A) and polarity marking (cathode band). It conducts only during reverse overvoltage events and blocks forward current - ideal for protecting DC supply lines where polarity is fixed.
What is the maximum clamping voltage of the SA5.0A under surge conditions?
The SA5.0A clamps to a maximum of 57.0 V at 600 A peak pulse current (10/1000 µs waveform), as specified in Taiwan Semiconductor's L2105 datasheet. This value directly determines the peak stress imposed on downstream components and confirms suitability for safeguarding 5 V ICs with 60 V absolute maximum ratings.
Does the SA5.0A meet automotive qualification standards?
The base SA5.0A is not AEC-Q101 qualified; however, the SA5.0AH variant (with "H" suffix) is explicitly qualified per AEC-Q101. The SA5.0A shares identical electrical parameters and DO-204AC packaging, allowing direct layout reuse - qualification upgrade requires ordering the AH version for automotive applications requiring stress-tested reliability.
What package type does the SA5.0A use, and what are its key mechanical attributes?
The SA5.0A uses the DO-204AC (DO-15) axial package: 4.5 mm diameter, 8.5 mm length, with pure tin-plated leads meeting J-STD-002 solderability and JESD201 Class 2 whisker resistance. Its UL 94V-0 molding compound and 0.400 g weight support manual and automated assembly in high-volume manufacturing environments.
SA5.0A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- SA
- Packaging:
- Tape & Reel (TR)
- 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):
- 57A
- 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)
SA5.0A FAQ
1.How can I place an order for SA5.0A through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5.0A 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 SA5.0A reliable?
The price and inventory of SA5.0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5.0A is usually 5 days.
3.What payment methods are accepted for SA5.0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5.0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5.0A?
SA5.0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5.0A 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 SA5.0A?
For technical support, including SA5.0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5.0A requirements.
6.How does Aetrix verify that SA5.0A is sourced from the original manufacturer or authorized distributors?
All SA5.0A 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 SA5.0A meets industry standards.
7.What is the process for return or replacement of SA5.0A?
All SA5.0A units undergo pre-shipment inspection (PSI). If there is an issue with SA5.0A, 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 SA5.0A part is unused and in its original packaging.
Return procedure for SA5.0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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