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Taiwan Semiconductor Corporation SA36CA
- Part No.:
- SA36CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA36CA.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,852
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Product details
Overview
SA36CA from Taiwan Semiconductor is a bidirectional 36V transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 500W peak pulse power at 10/1000μs, with 64.5V clamping voltage at 9.0A peak pulse current and <1μA reverse leakage at 36V. It protects automotive lighting and industrial control circuits against ESD and inductive switching transients.
For engineers reviewing the SA36CA datasheet, SA36CA pinout, SA36CA application, or SA36CA equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, bidirectional clamping behavior, thermal derating curves, and direct alternatives for surge protection design validation and BOM optimization.
Technical Context
The SA36CA is a silicon avalanche diode engineered for bidirectional transient suppression, with symmetrical breakdown characteristics (VBR min/max = 40.0V/48.9V at 1mA) and low dynamic impedance to ensure consistent clamping across polarity reversals. Its 175°C maximum junction temperature and JESD201 Class 2 whisker resistance support under-hood automotive deployment.
It operates within a -55°C to +175°C junction range and exhibits a 41 mV/°C VBR temperature coefficient - critical for stable clamping performance across wide thermal gradients in engine control units and LED driver modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold |
| VBR @ IT=1mA | 40.0–48.9 V - Breakdown voltage range confirming bidirectional symmetry and robust avalanche initiation |
| VC @ IPPM=9.0A | 64.5 V - Clamping voltage limiting downstream circuit stress during 10/1000μs surge events |
| PPK | 500 W - Peak pulse power handling capacity per single 10/1000μs waveform, enabling IEC 61000-4-5 Level 4 compliance |
| IR @ VWM | <1 μA - Ultra-low reverse leakage ensuring minimal standby power loss in battery-backed systems |
| TJ max | +175 °C - High-temperature junction rating supporting placement near heat sources in automotive ECUs and power converters |
Pinout & Package
SA36CA is housed in a DO-204AC (DO-15) axial-leaded package with cathode band marking omitted due to bidirectional construction - both terminals are electrically symmetric and non-polarized.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | No polarity marking required; either terminal serves as input/output for transient energy diversion in AC or floating DC lines |
| Lead 1 / Lead 2 | Surge current path | Tin-plated copper leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance for high-reliability assembly |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain and body electronics per stress test requirements |
| 500W 10/1000μs surge rating | Enables protection against ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Combination Wave surges |
| Clamping voltage ≤64.5V at 9.0A | Provides ≥10% safety margin below 72V system rails in 24V automotive architectures |
| Response time <5.0ns (bidirectional) | Ensures sub-nanosecond-level reaction to ESD events (IEC 61000-4-2) without signal distortion |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment |
Applications
| Automotive Lighting Systems | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and CAN transceivers in headlamp control modules subjected to load dump and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and ground to clamp transients before they reach sensitive analog front-ends. Use Value: Maintains VC ≤64.5V during 100V/50ms load dump events, preventing latch-up in 5V microcontrollers and 3.3V CAN PHYs. | Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Placed between field-side signal line and controller-side isolation barrier to absorb 600V/0.5A transients. Use Value: Limits transient voltage to 64.5V within 5ns, preserving signal integrity and avoiding false triggering of optocoupler inputs. |
| USB-C Power Delivery Ports | Smart Building Sensor Nodes |
Use Scenario: ESD protection on CC and VBUS lines of USB-C receptacles in automotive infotainment head units. IC Role / Device Role / Timing Role: Bidirectional clamping device shunting ±15kV HBM ESD pulses directly to ground. Use Value: Achieves <1μA leakage at 20V, minimizing quiescent current impact on always-on USB-C port detection logic. | Use Scenario: Transient suppression on RS-485 bus lines connecting wireless sensor nodes in HVAC control networks. IC Role / Device Role / Timing Role: Connected across differential pair (A/B) and ground to suppress common-mode surges induced by nearby motor drives. Use Value: Symmetrical VBR ensures equal clamping in both directions, maintaining differential signaling integrity during 4kV EFT bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA (Bourns) | Same DO-214AA package; 64.5V VC @ 9.1A but higher 1.5μA IR at 36V | Higher thermal resistance (RθJA = 50°C/W vs. SA36CA's 40°C/W) limits high-ambient use | Select SMBJ36CA only if board space requires SMD mounting; SA36CA preferred for through-hole reliability and lower leakage |
| P6SMB36CA (Littelfuse) | Identical VWM/VC/PPK; AEC-Q101 not certified; 2.0μA IR at 36V | Lacks automotive qualification documentation; unsuitable for OEM Tier-1 production without requalification | Use P6SMB36CA for cost-sensitive industrial prototypes; SA36CA required for production automotive designs |
Compared with SMBJ36CA and P6SMB36CA, the SA36CA offers lower reverse leakage (<1μA), superior thermal performance (40°C/W RθJA), and full AEC-Q101 certification - making it the optimal choice for automotive-grade surge protection where long-term reliability and specification compliance are mandatory.
Availability
SA36CA is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O protection, USB-C power delivery ports, and smart building sensor nodes requiring stable component supply and AEC-Q101-compliant surge suppression.
Supply support for SA36CA 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with global distribution and ISO/TS 16949-certified production.
The SA Series was developed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing AEC-Q101 qualification, tight VBR tolerances, and robust surge endurance across extended temperature ranges.
FAQ
What is the breakdown voltage range of SA36CA at 1mA test current?
The SA36CA has a specified breakdown voltage range of 40.0V to 48.9V at IT = 1mA, measured per ANSI/IEEE C62.35 standards. This bidirectional VBR window confirms symmetrical avalanche behavior essential for protecting AC-coupled or floating DC interfaces. The SA36CA's tolerance supports reliable clamping across manufacturing lots and temperature extremes.
Is SA36CA suitable for automotive applications requiring AEC-Q101 qualification?
Yes, SA36CA is explicitly AEC-Q101 qualified per the manufacturer's ordering code suffix "H" (SA36CAH), and its mechanical, thermal, and electrical test data align with stress requirements for automotive powertrain and body electronics. The SA36CA meets all qualification tests including temperature cycling, humidity bias, and accelerated life testing - making it approved for Tier-1 automotive production use.
What is the maximum clamping voltage of SA36CA during a 10/1000μs surge event?
The SA36CA clamps to a maximum of 64.5V when subjected to a 9.0A peak pulse current under the standard 10/1000μs waveform. This value is guaranteed across the full operating temperature range (-55°C to +175°C) and defines the upper voltage limit imposed on protected circuitry during surge events. The SA36CA's low clamping ratio (VC/VWM ≈ 1.79) ensures effective overvoltage limiting without excessive voltage overshoot.
Does SA36CA have polarity markings, and how is it mounted in circuit?
No, SA36CA does not have polarity markings because it is a bidirectional TVS diode - both terminals are functionally identical and interchangeable. It is mounted in-line across the protected node and ground (or across differential lines), with no orientation dependency. The DO-204AC (DO-15) axial package uses tin-plated leads compatible with standard wave or hand soldering per J-STD-002, and the SA36CA's symmetrical construction eliminates risk of incorrect installation.
How does SA36CA compare to unidirectional TVS diodes like SA36A in terms of application flexibility?
The SA36CA provides bidirectional clamping, making it suitable for AC lines, floating DC buses, and differential signal paths where voltage polarity reverses - unlike the unidirectional SA36A, which only protects against negative transients relative to its cathode. In applications such as RS-485, CAN FD, or USB-C VBUS, the SA36CA eliminates the need for dual-diode configurations. The SA36CA's symmetrical VBR and matched clamping ensure consistent protection regardless of transient polarity.
SA36CA 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 9A
- 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)
SA36CA FAQ
1.How can I place an order for SA36CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SA36CA 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 SA36CA reliable?
The price and inventory of SA36CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA36CA is usually 5 days.
3.What payment methods are accepted for SA36CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA36CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA36CA?
SA36CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA36CA 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 SA36CA?
For technical support, including SA36CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA36CA requirements.
6.How does Aetrix verify that SA36CA is sourced from the original manufacturer or authorized distributors?
All SA36CA 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 SA36CA meets industry standards.
7.What is the process for return or replacement of SA36CA?
All SA36CA units undergo pre-shipment inspection (PSI). If there is an issue with SA36CA, 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 SA36CA part is unused and in its original packaging.
Return procedure for SA36CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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