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Taiwan Semiconductor Corporation SA58CA
- Part No.:
- SA58CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA58CA.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,982
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Product details
Overview
SA58CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 500W peak pulse power at 10/1000μs, with 58V working stand-off voltage (VWM), 64.4–78.7V breakdown voltage (VBR), and 103V maximum clamping voltage (VC) at 5.0A peak pulse current - used to protect automotive and industrial power rails from ESD and electrical fast transients.
For engineers reviewing the SA58CA datasheet, SA58CA pinout, SA58CA application, or SA58CA equivalent, this page delivers verified electrical parameters, bidirectional TVS behavior, DO-15 mechanical data, AEC-Q101 qualification status, and real-world protection use cases - critical for surge immunity design in 12V/24V systems, LED drivers, and CAN/LIN bus interfaces.
Technical Context
The SA58CA operates as a bidirectional avalanche diode, symmetrically clamping voltage surges above ±64.4V in both polarities with sub-nanosecond response (<5.0ns). Its VBR tolerance (min 64.4V, max 78.7V at 1mA) and low leakage (<1μA at 58V) ensure stable stand-off during normal operation while enabling rapid conduction under transients.
Designed per ANSI/IEEE C62.35, it sustains 500W non-repetitive surge energy at TA = 25°C, derating linearly above ambient temperature per Fig.2, and supports peak forward surge current up to 70A (8.3ms half-sine) - confirming robustness against inductive load switching events in automotive power electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins; defines safe system rail margin for 12V/24V automotive applications. |
| VBR (min/max) | 64.4 V / 78.7 V at 1 mA - Breakdown onset range; ensures reliable triggering across process variation without premature conduction. |
| VC @ IPPM | 103 V at 5.0 A - Clamped voltage during 10/1000μs surge; limits downstream IC stress to <103V during 500W transient events. |
| PPK | 500 W - Peak pulse power rating; validates capability to absorb IEC 61000-4-5 Level 4 (4kV) surges in properly designed PCB layouts. |
| TJ max | +175 °C - Maximum junction temperature; enables deployment in under-hood automotive environments with high ambient thermal loads. |
| IR @ VWM | <1 μA - Reverse leakage at 58V; minimizes standby power loss and avoids false triggering in low-power sensor circuits. |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with UL 94V-0 molding compound and tin-plated leads compliant with J-STD-002 solderability. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical glass-passivated body, cathode band marking for unidirectional variants only; SA58CA is bidirectional and has no polarity marking - terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity required in PCB layout. |
| Lead 1 / Lead 2 | Surge current path | Both leads conduct equal peak pulse current (IPPM = 5.0A); must be routed with low-inductance traces to maintain clamping performance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, body electronics, and ADAS modules. |
| 5.0ns response time (bidirectional) | Clamps transients within 5 nanoseconds of voltage rise - faster than most microcontroller GPIO protection requirements and meets ISO 10605 ESD immunity timing. |
| Low clamping ratio (VC/VBR ≈ 1.6) | 103V clamping at 64.4V VBR yields tight voltage control - reduces overvoltage margin needed for protected ICs like CAN transceivers or MCU I/Os. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive - enables compliance in automotive Tier 1 supply chains requiring full material declarations. |
| 175°C junction rating | Supports operation in high-temperature zones (e.g., near power converters or under hood) without derating below 125°C ambient. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting 12V/24V battery-supplied ECUs from load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS placed at power entry point to clamp ±100V transients before LDOs or DC-DC controllers. Use Value: Limits peak voltage to 103V during 500W surges, preventing damage to 36V-rated input stages and extending system MTBF. |
Use Scenario: Shielding digital input channels of programmable logic controllers from field-wiring induced transients. IC Role / Device Role / Timing Role: Parallel-connected TVS on each 24V dry-contact input to shunt EFT bursts per IEC 61000-4-4 Level 4. Use Value: Sub-5ns response ensures clamping occurs before microcontroller input protection diodes activate, avoiding latch-up risk. |
| LED Driver Overvoltage Suppression | CAN Bus Transient Protection |
|
Use Scenario: Safeguarding constant-current LED drivers in streetlight and automotive lighting against inductive switching spikes. IC Role / Device Role / Timing Role: Placed across driver output terminals to clamp flyback voltages from long cable runs or relay coils. Use Value: 103V clamping prevents MOSFET drain-source breakdown in high-side switch designs operating near 60V rails. |
Use Scenario: Adding secondary-level surge protection to CAN FD physical layer nodes in vehicle networks. IC Role / Device Role / Timing Role: Mounted between CANH/CANL lines and ground to divert common-mode transients without affecting signal integrity. Use Value: Symmetric bidirectional clamping maintains differential signaling margin while suppressing ±103V common-mode surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ58CA | Same DO-214AC package, identical VWM (58V), but higher VC (107V @ 5.0A) and lower PPK (400W). | Less robust for IEC 61000-4-5 Level 4; requires tighter layout to compensate for higher clamping voltage. | Prefer SA58CA where 500W surge headroom and 103V clamping are required in space-constrained DO-15 footprint. |
| ON Semiconductor 1.5KE58CA | DO-201AD package (larger), same VWM/VC specs, but higher IR (5μA @ 58V) and no AEC-Q101 qualification. | Not suitable for automotive under-hood use; limited to industrial/commercial applications with relaxed reliability requirements. | Choose SA58CA when AEC-Q101 compliance, low leakage, and DO-15 board space are mandatory. |
Compared with SMAJ58CA and 1.5KE58CA, the SA58CA delivers superior surge handling (500W vs. 400W/1500W but larger package), tighter clamping (103V vs. 107V), and certified automotive qualification - making it optimal for compact, high-reliability 12V/24V protection where footprint and qualification are decisive.
Availability
SA58CA is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, LED lighting systems, and CAN bus interfaces requiring stable component supply with AEC-Q101 assurance and DO-15 compatibility.
Supply support for SA58CA 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, serving global automotive, industrial, and consumer markets since 1979.
The SA Series TVS diodes are engineered specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 qualification, low clamping ratios, and robust surge endurance for automotive power and signal line protection.
FAQ
What is the polarity configuration of SA58CA?
The SA58CA is a bidirectional TVS diode with symmetrical terminals - neither lead is designated anode or cathode. It clamps voltage surges of either polarity equally, eliminating polarity-sensitive placement during PCB assembly and simplifying layout for differential or AC-coupled protection schemes. This behavior is confirmed by its "CA" suffix and bidirectional VBR specification in the datasheet.
Is SA58CA qualified to AEC-Q101?
Yes, SA58CA is AEC-Q101 qualified - explicitly stated in the "FEATURES" section and reinforced by the "H" suffix option (e.g., SA58CAH) in the ordering information. This qualification covers stress tests including HTGB, TCT, and ESD, validating its suitability for automotive powertrain, chassis, and body electronics applications where reliability under thermal and electrical stress is critical.
What is the maximum clamping voltage of SA58CA at rated surge current?
The SA58CA has a maximum clamping voltage (VC) of 103 V at 5.0 A peak pulse current (IPPM), measured under the standard 10/1000μs waveform. This value is specified in the "MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS" table and defines the upper voltage limit imposed on protected circuitry during worst-case transient events - essential for verifying margin against downstream IC absolute maximum ratings.
Can SA58CA replace SA58A in existing designs?
No - SA58CA and SA58A are not interchangeable. SA58A is unidirectional (cathode-banded, single-polarity clamping), while SA58CA is bidirectional (no polarity marking, symmetrical clamping). Swapping them risks failure to suppress negative-going transients in SA58A-based layouts. Always verify polarity requirements and consult the SA Series datasheet Table 1 for correct suffix selection.
What is the junction temperature limit for SA58CA?
The SA58CA has a maximum junction temperature (TJ) rating of +175°C, as specified in the "ABSOLUTE MAXIMUM RATINGS" table. This allows operation in high-ambient environments such as engine compartments or enclosed industrial enclosures, provided PCB thermal design maintains junction-to-ambient resistance within derating curves shown in Figure 2 of the datasheet.
SA58CA 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):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 5.6A
- 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)
SA58CA FAQ
1.How can I place an order for SA58CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SA58CA 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 SA58CA reliable?
The price and inventory of SA58CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA58CA is usually 5 days.
3.What payment methods are accepted for SA58CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA58CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA58CA?
SA58CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA58CA 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 SA58CA?
For technical support, including SA58CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA58CA requirements.
6.How does Aetrix verify that SA58CA is sourced from the original manufacturer or authorized distributors?
All SA58CA 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 SA58CA meets industry standards.
7.What is the process for return or replacement of SA58CA?
All SA58CA units undergo pre-shipment inspection (PSI). If there is an issue with SA58CA, 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 SA58CA part is unused and in its original packaging.
Return procedure for SA58CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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