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Vishay General Semiconductor - Diodes Division SA58A-E3/54
- Part No.:
- SA58A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA58A-E3/54.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,126
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Product details
Overview
SA58A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for circuit protection against ESD and surge transients. It features 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 93.6 V clamping voltage (VC) at 5.3 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - deployed in power supply input stages and DC bus lines of industrial motor drives.
For engineers reviewing the SA58A-E3/54 datasheet, SA58A-E3/54 pinout, SA58A-E3/54 application, or SA58A-E3/54 equivalent, key selection criteria include verified clamping performance under 5.3 A IPPM, unidirectional polarity with cathode band marking, DO-15 mechanical compatibility, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
The SA58A-E3/54 operates as a silicon avalanche diode with glass-passivated junction, delivering fast response (<1 ns) to transient overvoltage events. Its unidirectional configuration enables integration into DC-biased rails where reverse conduction must be blocked until clamping threshold is exceeded.
It complies with IEC 61000-4-2 (ESD) and IEC 61000-4-5 (surge) immunity requirements when used with appropriate series impedance. Thermal derating follows a linear curve from 3.0 W at TL = 75 °C down to zero at TJ = 175 °C, supporting operation in high-ambient industrial enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC bias margin |
| VBR (min/max) | 64.4 V / 71.2 V at IT = 1 mA - guaranteed avalanche onset range; ensures consistent turn-on across temperature and lot |
| VC @ IPPM | 93.6 V at 5.3 A - clamped voltage during 10/1000 μs surge; determines protected IC's maximum stress level |
| PPPM | 500 W - peak transient energy absorption capability; supports repeated surges at 0.01% duty cycle |
| IFSM | 70 A - non-repetitive forward surge rating (10 ms half-sine); validates robustness against inrush or fault currents |
| TJ max. | +175 °C - maximum junction temperature; enables use in under-hood automotive or sealed industrial environments |
| Polarity | Unidirectional - cathode marked with band; blocks reverse current until VBR reached, then clamps bidirectionally in avalanche |
Pinout & Package
Package: DO-15 (DO-204AC), axial leaded, epoxy-molded case with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; carries full surge current during clamping |
| Cathode | Avalanche trigger & clamping node | Marked with band; referenced to system ground or return path; defines VWM and VBR polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR over lifetime and humidity exposure; eliminates surface degradation risks in humid industrial settings |
| 500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge protection without external current limiting in low-impedance paths |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive powertrain and body electronics; includes HTOL, TC, and HAST stress testing per qualification standard |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., relay coil flyback), improving protection margin for downstream MOSFETs |
| UL 94 V-0 molded compound | Prevents flame propagation in enclosed power modules; required for UL 62368-1 certified end equipment |
Applications
| Industrial Motor Drive Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: 24 V DC bus in variable-frequency drives exposed to inductive kickback from contactor switching and regenerative braking. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24 V rail and chassis ground to clamp transients up to ±1 kV. Use Value: Clamps to ≤93.6 V within nanoseconds, preventing damage to 36 V-rated DC-DC controllers and gate drivers downstream. | Use Scenario: 12 V battery-supplied BCM module subjected to load dump (ISO 7637-2 Pulse 5a) and ESD events during connector mating. IC Role / Device Role / Timing Role: Primary overvoltage protector on main power input, upstream of LDOs and microcontrollers. Use Value: Withstands 70 A IFSM and maintains <1 μA leakage at 58 V, ensuring low quiescent current and long-term reliability in always-on systems. |
| Telecom Power Supply Surge Protection | Consumer Appliance Mainboard ESD Guard |
Use Scenario: AC/DC front-end of PoE-powered network switches experiencing lightning-induced surges on secondary-side 48 V outputs. IC Role / Device Role / Timing Role: Secondary-side TVS on isolated 48 V output rail, coordinated with primary-side MOVs. Use Value: 93.6 V clamping ensures protected Ethernet PHY ICs (rated to 57 V abs max) remain within safe operating area during combined surge events. | Use Scenario: Mains-powered washing machine control board with user-accessible buttons and display connectors prone to human-body-model ESD. IC Role / Device Role / Timing Role: Localized TVS on 5 V/3.3 V logic rails feeding touch controller and display interface. Use Value: Sub-1 ns response time limits voltage overshoot to <100 V, preventing latch-up in ARM-based MCU I/O pins rated for 4.5 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/57 | Same VWM/VBR/VC specs but in SMA (DO-214AC) surface-mount package; 1.5 W steady-state rating vs. 3.0 W | Preferred for space-constrained PCBs; requires thermal relief pads for >1 W dissipation | Select SMAJ58A-E3/57 only if board layout prioritizes footprint reduction over power handling margin |
| 1.5KE58A | Higher PPPM (1500 W), larger DO-201AD package, higher VF (3.5 V), same VWM/VBR range | Better suited for high-energy surge zones (e.g., AC mains entry); not AEC-Q101 qualified | Choose 1.5KE58A where single-event surge energy exceeds 500 W capability and automotive qualification is not required |
Compared with SMAJ58A-E3/57 and 1.5KE58A, the SA58A-E3/54 offers optimal balance of axial-leaded mechanical robustness, 3.0 W steady-state dissipation, and AEC-Q101 compliance - making it ideal for through-hole mounted, thermally demanding, and automotive-qualified designs where DO-15 form factor is specified.
Availability
SA58A-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, telecom power supplies, and consumer appliance mainboards requiring stable component supply with traceable sourcing and long-lifecycle support.
Supply support for SA58A-E3/54 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, power efficiency, and qualification for harsh environments.
The SAxxA series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - combining glass-passivated junctions, AEC-Q101 validation, and standardized DO-15 packaging for broad design reuse.
FAQ
What is the clamping voltage of SA58A-E3/54 and how is it measured?
The SA58A-E3/54 has a maximum clamping voltage (VC) of 93.6 V, measured at a peak pulse current (IPPM) of 5.3 A using a 10/1000 μs waveform per IEC 61000-4-5. This value represents the upper limit of voltage seen by downstream components during a standardized surge event, and is guaranteed across temperature and manufacturing lots per Vishay Document 88378.
Is SA58A-E3/54 qualified for automotive applications?
Yes, the SA58A-E3/54 is AEC-Q101 qualified per Vishay's documentation, confirming its suitability for automotive electronic systems including body control modules and power distribution units. The E3 suffix denotes RoHS-compliant commercial grade with JESD 201 Class 1A whisker resistance, and qualification includes HTOL, temperature cycling, and HAST testing.
What does the "E3/54" suffix mean in SA58A-E3/54?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting J-STD-002 solderability and JESD 201 Class 1A whisker resistance. The "/54" denotes the preferred package code for 13-inch paper tape and reel packaging, with a base quantity of 4000 units per reel - standard for automated SMT and through-hole assembly lines.
How does SA58A-E3/54 differ from bidirectional variants like SA58CA?
The SA58A-E3/54 is unidirectional with cathode band marking and blocks reverse current until breakdown; SA58CA is bidirectional with no polarity marking and clamps symmetrically in both directions. Their VWM (58 V), VBR (64.4–71.2 V), and VC (93.6 V) are identical, but SA58A-E3/54 supports forward conduction and IFSM (70 A), while SA58CA does not specify IFSM.
Can SA58A-E3/54 replace SA58AHE3/54 in automotive designs?
No - SA58A-E3/54 is commercial grade, while SA58AHE3/54 is explicitly AEC-Q101 qualified (HE3 suffix). Though both share identical electrical specs and DO-15 packaging, only SA58AHE3/54 has undergone full automotive qualification testing. For automotive production, SA58AHE3/54 must be used; SA58A-E3/54 is restricted to industrial or consumer applications where AEC-Q101 is not mandated.
SA58A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 5.3A
- 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)
SA58A-E3/54 FAQ
1.How can I place an order for SA58A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA58A-E3/54 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 SA58A-E3/54 reliable?
The price and inventory of SA58A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA58A-E3/54 is usually 5 days.
3.What payment methods are accepted for SA58A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA58A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA58A-E3/54?
SA58A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA58A-E3/54 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 SA58A-E3/54?
For technical support, including SA58A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA58A-E3/54 requirements.
6.How does Aetrix verify that SA58A-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA58A-E3/54 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 SA58A-E3/54 meets industry standards.
7.What is the process for return or replacement of SA58A-E3/54?
All SA58A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA58A-E3/54, 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 SA58A-E3/54 part is unused and in its original packaging.
Return procedure for SA58A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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