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Vishay General Semiconductor - Diodes Division SA58HE3/73
- Part No.:
- SA58HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA58HE3/73.pdf
- Description:
- TVS DIODE 58VWM 103VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,721
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Product details
Overview
SA58HE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR at 1 mA), 500 W peak pulse power (10/1000 µs), and 5.3 A peak pulse current (IPPM). It protects MOSFETs and ICs in automotive power supplies against inductive switching transients.
For engineers reviewing the SA58HE3/73 datasheet, SA58HE3/73 pinout, SA58HE3/73 application, or SA58HE3/73 equivalent, this AEC-Q101 qualified TVS offers validated clamping performance (93.6 V max at IPPM), low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering.
Technical Context
This uni-directional TVS operates with a glass-passivated junction and exhibits fast response time (<1 ns) to transient overvoltages. Its clamping behavior is defined by a 10/1000 µs waveform, with maximum clamping voltage of 93.6 V at 5.3 A peak pulse current and a temperature coefficient of +0.07 %/°C for VBR.
The device supports continuous power dissipation of 3.0 W on an infinite heatsink at TL = 75 °C and withstands 70 A non-repetitive forward surge current (10 ms half-sine). It is rated for operation from –55 °C to +175 °C junction temperature and meets JESD 201 class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum reverse working voltage before clamping begins; sets operating margin for 48 V automotive systems. |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction. |
| IPPM | 5.3 A - Peak pulse current capability under 10/1000 µs waveform; defines transient energy absorption limit. |
| VC (max) | 93.6 V - Maximum clamped voltage at IPPM; determines protected circuit's voltage stress during surge. |
| PPPM | 500 W - Peak pulse power rating; enables robust protection against ISO 7637-2 Pulse 1/2a/2b transients. |
| TJ max | +175 °C - Maximum junction temperature; supports under-hood automotive placement with thermal derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD. |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case with matte tin-plated leads. Polarity marked by cathode band on uni-directional devices; SA58HE3/73 is uni-directional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to system ground or low-side return path; must be routed with low-inductance trace for effective clamping. |
| Cathode | Reverse-biased terminal during normal operation | Connected to protected line (e.g., 48 V rail); color band identifies this terminal for correct PCB orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity stress. |
| 500 W peak pulse power (10/1000 µs) | Supports automotive load-dump immunity per ISO 16750-2 (Test Pulse 5a) up to 120 V, 100 ms duration. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics with zero early-life failure risk. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients (e.g., relay coil de-energization), improving protection margin. |
| RoHS-compliant, matte tin plating | Ensures solderability per J-STD-002 and eliminates whisker growth risk in high-reliability assemblies. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 48 V DC-DC converter inputs in mild-hybrid vehicles from load dump and inductive kickback. IC Role / Device Role / Timing Role: Uni-directional TVS placed between input rail and ground to clamp transients above 58 V. Use Value: Limits voltage seen by downstream buck controller to ≤93.6 V during 500 W surges, preventing latch-up or gate oxide damage. | Use Scenario: Safeguarding PLC analog input modules connected to solenoid valves and contactors. IC Role / Device Role / Timing Role: Front-end transient suppressor on signal/power lines exposed to relay-induced spikes. Use Value: Clamps 10/1000 µs transients to <94 V within nanoseconds, preserving ADC reference integrity and isolation barrier lifetime. |
| Telecom DC Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges on central office distribution lines. IC Role / Device Role / Timing Role: Reverse-polarity TVS (cathode to -48 V rail) suppressing positive-going transients toward ground. Use Value: Maintains clamping voltage below -40 V absolute rating of downstream PMICs, avoiding destructive reverse bias. | Use Scenario: Shielding microcontroller I/O and power rails in smart washing machine control boards from motor commutation noise. IC Role / Device Role / Timing Role: Localized TVS on 12 V logic supply rail adjacent to motor driver IC. Use Value: Absorbs repetitive 500 W pulses without degradation, extending board field life beyond 10 years in harsh EMI environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/52 | Same DO-214AC package; 58 V VWM, but lower PPPM = 400 W and higher VC = 93.6 V at 4.3 A. | Lower surge capacity limits use to less severe transients (e.g., IEC 61000-4-5 Level 3 only). | Select when footprint compatibility with SMA package is required and peak surge energy is ≤400 W. |
| 1.5KE58A | DO-201AD package; same 58 V VWM, but higher PPPM = 1500 W and larger form factor (7.1 mm x 5.3 mm vs. DO-15's 4.2 mm x 2.2 mm). | Higher power handling suits industrial AC/DC front-ends, but requires PCB area increase and layout revision. | Choose for legacy designs needing >500 W surge margin or where DO-201AD is already standardized. |
Compared with SMAJ58A-E3/52 and 1.5KE58A, SA58HE3/73 delivers optimal balance of AEC-Q101 qualification, compact DO-15 footprint, and 500 W capability-making it preferred for space-constrained automotive and industrial PCBs requiring production-grade reliability.
Availability
SA58HE3/73 is available at Aetrix Electronics and suitable for automotive power systems, industrial motor controls, telecom DC feeds, and consumer appliance boards requiring stable component supply across extended product lifecycles.
Supply support for SA58HE3/73 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, and protection devices with emphasis on reliability and automotive qualification.
The SAxxA series was developed specifically for robust transient suppression in automotive and industrial environments, targeting ISO 7637-2 and ISO 16750-2 compliance with AEC-Q101 validation.
FAQ
What is the clamping voltage of SA58HE3/73 at its rated peak pulse current?
The SA58HE3/73 has a maximum clamping voltage (VC) of 93.6 V at its rated peak pulse current (IPPM) of 5.3 A under a 10/1000 µs waveform. This value is measured per Figure 7 in the Vishay datasheet 88378 and defines the upper voltage limit imposed on protected circuits during surge events. The SA58HE3/73 maintains this clamping performance across its full operating temperature range.
Is SA58HE3/73 suitable for automotive applications?
Yes, SA58HE3/73 is AEC-Q101 qualified and explicitly designed for automotive use. Its construction includes glass-passivated junction, JESD 201 class 2 whisker-resistant leads, and operation up to +175 °C junction temperature-meeting requirements for engine bay and chassis-mounted electronics. The SA58HE3/73 appears in Vishay's automotive-grade TransZorb® family documentation with test reports covering HTGB, HTRB, and temperature cycling.
What does the "HE3" suffix indicate in SA58HE3/73?
The "HE3" suffix in SA58HE3/73 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 class 2 whisker resistance. Per Vishay's ordering information, "HE3" distinguishes this automotive-grade variant from commercial "E3" versions, confirming enhanced reliability testing and tighter process controls. The "73" refers to the packaging configuration (7-inch reel, 3000 pcs/reel per standard DO-15 tape-and-reel specification).
How does SA58HE3/73 differ from bi-directional TVS diodes like SA58CA?
SA58HE3/73 is a uni-directional TVS diode, meaning it conducts only in reverse bias above VBR and blocks forward current up to 3.5 V at 100 A. In contrast, SA58CA is bi-directional with symmetrical clamping in both polarities and no polarity marking. The SA58HE3/73 is used where polarity is known and ground-referenced protection is needed, offering lower leakage and tighter VBR tolerance than its bi-directional counterpart.
What is the maximum steady-state power dissipation for SA58HE3/73?
The SA58HE3/73 has a maximum steady-state power dissipation (PD) of 3.0 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C, per Figure 5 in datasheet 88378. This rating decreases linearly above 75 °C and must be applied with appropriate thermal design-such as copper pour and thermal vias-to avoid exceeding the +175 °C maximum junction temperature during continuous operation.
SA58HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA58HE3/73 FAQ
1.How can I place an order for SA58HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA58HE3/73 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 SA58HE3/73 reliable?
The price and inventory of SA58HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA58HE3/73 is usually 5 days.
3.What payment methods are accepted for SA58HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA58HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA58HE3/73?
SA58HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA58HE3/73 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 SA58HE3/73?
For technical support, including SA58HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA58HE3/73 requirements.
6.How does Aetrix verify that SA58HE3/73 is sourced from the original manufacturer or authorized distributors?
All SA58HE3/73 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 SA58HE3/73 meets industry standards.
7.What is the process for return or replacement of SA58HE3/73?
All SA58HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA58HE3/73, 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 SA58HE3/73 part is unused and in its original packaging.
Return procedure for SA58HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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