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Vishay General Semiconductor - Diodes Division SA58-E3/54
- Part No.:
- SA58-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA58-E3/54.pdf
- Description:
- TVS DIODE 58VWM 103VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,563
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Product details
Overview
SA58-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features a 54 V stand-off voltage (VWM), 60.0–66.3 V breakdown voltage (VBR) at 1 mA, 500 W peak pulse power (10/1000 μs), clamping voltage of 93.6 V at 5.3 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SA58-E3/54 datasheet, SA58-E3/54 pinout, SA58-E3/54 application, or SA58-E3/54 equivalent, this page delivers verified electrical parameters, package dimensions, clamping behavior under surge, thermal derating curves, and real-world protection use cases - all aligned to Vishay Document #88378 Rev. 18-Sep-12.
Technical Context
The SA58-E3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transient events such as ESD, load dump, and inductive switching spikes. Its unidirectional polarity uses a cathode band marking and supports reverse-biased clamping only - forward conduction is limited to 3.5 V at 100 A surge.
It complies with JEDEC JESD22-B106 (solder dip), JESD201 Class 1A whisker resistance, and UL 94 V-0 flammability for epoxy molding compound. Thermal operation spans −55 °C to +175 °C junction temperature, with steady-state power dissipation derated linearly above 75 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - maximum continuous reverse operating voltage before clamping begins; sets protection threshold for 48 V nominal systems. |
| VBR (min/max) | 60.0 V / 66.3 V at 1 mA - ensures reliable avalanche initiation within defined tolerance; critical for predictable clamping onset. |
| VC @ IPPM | 93.6 V at 5.3 A - maximum clamped voltage during 10/1000 μs surge; determines protected circuit's peak stress level. |
| PPPM | 500 W - peak pulse power handling per single transient; defines survivability against ISO 7637-2 Pulse 1/2a/5a events. |
| IFSM | 70 A - non-repetitive forward surge current rating (10 ms half-sine); supports brief inrush or fault-current exposure. |
| TJ max | +175 °C - maximum junction temperature; enables high-temperature under-hood automotive deployment without derating loss. |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with 0.300" minimum lead length; compatible with wave soldering and manual rework. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy body, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode indicated by color band on one end; anode is unmarked lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Forward current entry / reverse-biased reference node | Connected to system ground or low-side return path; establishes reference for clamping action. |
| Cathode (banded lead) | Reverse-biased clamping node / surge current sink | Connected to protected line (e.g., 48 V rail); conducts transient energy to ground when VLINE exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature; eliminates surface degradation under humidity or bias stress. |
| 500 W peak pulse power (10/1000 μs) | Withstands automotive load-dump transients (ISO 7637-2 Pulse 5a) without degradation when properly heatsinked. |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, ESD-HBM/MM, and mechanical shock. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD >15 kV), improving protection margin for downstream ICs. |
| RoHS-compliant & halogen-free | Meets JEDEC JS709A and EU Directive 2011/65/EU; suitable for environmentally regulated industrial and automotive supply chains. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary clamping device placed between battery rail and point-of-load regulator input. Use Value: Limits peak rail voltage to ≤93.6 V during 500 W surges, preventing damage to 100 V-rated MOSFETs and PMICs downstream. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules from cable-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on signal line referenced to local ground, upstream of op-amp input stage. Use Value: Clamps induced transients to <95 V while maintaining <1 μA leakage at 54 V, preserving signal integrity and ADC accuracy. |
| Telecom DC Power Input Stage | Motor Drive Control Board Protection |
Use Scenario: Safeguarding 48 V telecom rectifier outputs against lightning-induced surges on long-line feeds. IC Role / Device Role / Timing Role: First-line defense on main DC bus prior to bulk capacitance and DC/DC converters. Use Value: Absorbs 10/1000 μs surges up to 5.3 A without failure, ensuring uptime in outdoor base station cabinets. | Use Scenario: Protecting gate drivers and current-sense amplifiers on BLDC motor control boards exposed to back-EMF spikes. IC Role / Device Role / Timing Role: Localized TVS on isolated 15 V auxiliary supply rail feeding optocouplers and bootstrap circuits. Use Value: Responds in <1 ns to 600 V/μs edges, limiting clamp delay to sub-nanosecond and preventing false triggering of protection logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/57 | Same VWM (58 V), lower PPPM (400 W), SMA package (surface-mount), no AEC-Q101 qualification. | Not suitable for automotive under-hood use; preferred for space-constrained PCBs where wave soldering is not used. | Select SMAJ58A-E3/57 only if board-level assembly uses reflow-only processes and automotive qualification is unnecessary. |
| 1.5KE56A | Higher VWM (56 V), same DO-15 package, 1500 W PPPM, but larger case (DO-201AD), no AEC-Q101. | Overqualified for 48 V systems; requires more board area and lacks automotive reliability validation. | Choose 1.5KE56A only when legacy designs demand higher pulse power headroom and AEC-Q101 is not mandated. |
Compared with SMAJ58A-E3/57 and 1.5KE56A, the SA58-E3/54 uniquely balances 500 W surge capability, AEC-Q101 compliance, and DO-15 through-hole manufacturability - making it optimal for new automotive and industrial power-supply protection designs requiring traceable qualification and proven process control.
Availability
SA58-E3/54 is available at Aetrix Electronics and suitable for automotive ECU power rails, industrial sensor interfaces, telecom DC inputs, and motor drive auxiliary supplies requiring stable component supply across multi-year production cycles.
Supply support for SA58-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, TVS devices, and optoelectronics with emphasis on reliability, automotive qualification, and high-volume manufacturing consistency.
The SAxxA series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust, standardized overvoltage protection in harsh environments - targeting automotive, industrial, and telecom infrastructure applications where failure modes must be rigorously controlled.
FAQ
What is the clamping voltage of the SA58-E3/54 under a 10/1000 μs surge?
The SA58-E3/54 clamps to a maximum of 93.6 V at its rated peak pulse current of 5.3 A (10/1000 μs waveform). This value is measured per Figure 7 in Vishay Document #88378 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SA58-E3/54 maintains this clamping performance across its full operating temperature range when mounted with appropriate thermal relief.
Is the SA58-E3/54 suitable for automotive applications?
Yes, the SA58-E3/54 is AEC-Q101 qualified per Vishay documentation, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS subsystems. Its DO-204AC package, −55 °C to +175 °C operating range, and validated reliability testing (HTOL, TCT, ESD) make the SA58-E3/54 appropriate for under-hood and chassis-mounted deployments where environmental stress is severe.
What does the "E3/54" suffix mean in SA58-E3/54?
The "E3" denotes RoHS-compliant, commercial-grade construction with JESD201 Class 1A whisker resistance; "/54" specifies the preferred packaging code - 4000-piece 13-inch paper tape and reel. This ordering format aligns with Vishay's standard logistics configuration for automated SMT placement equipment, though the SA58-E3/54 itself is a through-hole DO-15 device intended for wave soldering or hand assembly.
How does the SA58-E3/54 differ from bi-directional TVS diodes like SA58CA?
The SA58-E3/54 is unidirectional and features a cathode band for polarity-sensitive placement, enabling clamping only in reverse bias - forward conduction follows standard diode behavior. In contrast, SA58CA is bi-directional with no polarity marking and clamps symmetrically in both directions. The SA58-E3/54 is selected for DC rail protection where ground-referenced surges dominate; SA58CA suits AC-coupled or floating signal lines.
What is the maximum leakage current of the SA58-E3/54 at its stand-off voltage?
At its 54 V stand-off voltage (VWM), the SA58-E3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA at 25 °C, per Table on page 2 of Vishay Document #88378. This ultra-low leakage preserves efficiency in always-on systems and avoids loading sensitive reference or monitoring circuits - a key advantage over higher-leakage alternatives in precision power monitoring applications.
SA58-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 4.9A
- 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)
SA58-E3/54 FAQ
1.How can I place an order for SA58-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA58-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 SA58-E3/54 reliable?
The price and inventory of SA58-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 SA58-E3/54 is usually 5 days.
3.What payment methods are accepted for SA58-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA58-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA58-E3/54?
SA58-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA58-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 SA58-E3/54?
For technical support, including SA58-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA58-E3/54 requirements.
6.How does Aetrix verify that SA58-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA58-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 SA58-E3/54 meets industry standards.
7.What is the process for return or replacement of SA58-E3/54?
All SA58-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA58-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 SA58-E3/54 part is unused and in its original packaging.
Return procedure for SA58-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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