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Vishay General Semiconductor - Diodes Division SA58-E3/73
- Part No.:
- SA58-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA58-E3/73.pdf
- Description:
- TVS DIODE 58VWM 103VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,769
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Product details
Overview
SA58-E3/73 from Vishay General Semiconductor is a uni-directional 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 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 93.6 V maximum clamping voltage (VC) at 5.3 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the SA58-E3/73 datasheet, SA58-E3/73 pinout, SA58-E3/73 application, or SA58-E3/73 equivalent, this part serves as a RoHS-compliant, AEC-Q101-qualified transient suppressor requiring precise VWM/VBR margining against system operating voltage, verification of clamping headroom under worst-case surge conditions, and compatibility with lead-free reflow profiles up to 275 °C for 10 s.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal operation it presents high impedance (<1 μA leakage at 58 V), then avalanches sharply at VBR ≥64.4 V to divert transients away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance.
It is rated for 70 A non-repetitive forward surge current (IFSM) and supports continuous power dissipation of 3.0 W on an infinite heatsink at TL = 75 °C. Junction temperature range spans −55 °C to +175 °C, enabling use in under-hood automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line's nominal DC voltage |
| VBR (min/max) | 64.4 V / 71.2 V at IT = 1 mA - defines reliable avalanche initiation window; ensures robust margin above VWM |
| VC @ IPPM | 93.6 V at 5.3 A (10/1000 μs) - clamping voltage seen by protected IC during surge; determines residual stress on downstream components |
| PPPM | 500 W - peak transient energy handling capacity; defines survivability against ISO 7637-2 Pulse 1/2a/5a or IEC 61000-4-5 surges |
| IFSM | 70 A - single half-sine surge current rating (8.3 ms); validates capability to withstand inrush or load-dump events without failure |
| TJ max | +175 °C - maximum junction temperature; enables placement near heat sources and supports extended thermal derating in sealed enclosures |
| Package | DO-204AC (DO-15) - axial-leaded through-hole package with matte tin-plated leads; compatible with wave soldering and manual rework |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case meeting UL 94 V-0; cathode indicated by color band on one end; leads are matte tin-plated and solderable per J-STD-002/JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during clamping | Connected to protected line's ground or low-side return path; must handle full surge current without trace fusing |
| Cathode | Reverse-biased terminal during normal operation | Connected to protected line's positive rail; color band identifies this end; defines polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable, repeatable breakdown voltage across temperature and lifetime; eliminates parameter drift due to surface contamination |
| 500 W peak pulse power (10/1000 μs) | Validates immunity to common automotive transients (e.g., ISO 7637-2 Pulse 5a) without degradation after repeated strikes |
| AEC-Q101 qualified | Confirms reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| Low incremental clamping resistance | Minimizes VC rise under increasing surge current - critical for protecting 3.3 V or 5 V logic from overshoot beyond absolute maximum ratings |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker test; suitable for lead-free assembly with no risk of tin whisker growth in long-life deployments |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (up to 60 V) and alternator ripple. IC Role / Device Role / Timing Role: Shunt clamping device placed between VBAT and GND upstream of LDO/regulator. Use Value: Limits transient voltage to ≤93.6 V, preventing damage to 65 V-rated input capacitors and ensuring regulator survival during ISO 7637-2 Pulse 5a events. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional protection (though SA58-E3/73 is uni-directional, used with series resistor for signal line) on analog input pins. Use Value: Clamps fast transients (<1 ns response) before they couple into precision ADC front-ends, preserving measurement accuracy and avoiding latch-up. |
| DC Motor Drive Board Protection | Telecom Power Supply Input Stage |
Use Scenario: H-bridge motor drivers generating back-EMF spikes during commutation. IC Role / Device Role / Timing Role: Uni-directional TVS connected from motor supply rail to ground to absorb inductive kickback. Use Value: Absorbs 500 W pulses without degradation, maintaining VCC rail integrity and preventing MOSFET gate oxide rupture from voltage overshoot. |
Use Scenario: AC/DC adapter outputs feeding telecom base station modules vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level clamping device on +48 V output rail prior to DC/DC converters. Use Value: Withstands repetitive 10/1000 μs surges up to 5.3 A while holding clamped voltage below 95 V - within safe operating area of downstream 100 V-rated FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/5A (Vishay) | Same VWM/VBR/VC specs but in SMA (DO-214AC) surface-mount package; 500 W rating retained | Requires PCB redesign for SMT layout; better suited for space-constrained, high-volume automated assembly | Select when board real estate is limited and reflow compatibility is prioritized over through-hole serviceability |
| 1.5KE56A (ON Semiconductor) | Higher VWM = 56 V, VBR = 62.2–68.7 V, VC = 93.6 V at 5.3 A; same 500 W rating but in DO-201AD package | Marginally lower stand-off voltage may increase leakage at 58 V nominal rails; DO-201AD has longer leads and different thermal profile | Consider only if existing BOM uses 1.5KE series and mechanical fit allows DO-201AD footprint substitution |
Compared with SMAJ58A-E3/5A and 1.5KE56A, SA58-E3/73 offers verified AEC-Q101 qualification, DO-204AC mechanical robustness for vibration-prone environments, and E3 whisker-tested leads - making it preferred for automotive and industrial through-hole designs where reliability under thermal cycling and mechanical stress is critical.
Availability
SA58-E3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, DC motor drive boards, and telecom power supply input stages requiring stable component supply with guaranteed long-term continuity.
Supply support for SA58-E3/73 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SAxxA series is engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure due to voltage surges must be eliminated.
FAQ
What is the maximum clamping voltage of SA58-E3/73 under standard test conditions?
The SA58-E3/73 exhibits a maximum clamping voltage (VC) of 93.6 V when subjected to a 10/1000 μs waveform at 5.3 A peak pulse current. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is SA58-E3/73 qualified for automotive applications?
Yes, SA58-E3/73 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. The qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and accelerated life - validating performance across −55 °C to +175 °C junction temperature range.
What does the "E3" suffix indicate in SA58-E3/73?
The "E3" suffix in SA58-E3/73 denotes RoHS-compliant construction with matte tin-plated leads that meet JESD 201 Class 1A whisker testing requirements. It also signifies commercial-grade qualification - distinct from "HE3", which indicates AEC-Q101 qualification in addition to RoHS compliance.
Can SA58-E3/73 be used in bi-directional protection circuits?
No, SA58-E3/73 is a uni-directional TVS diode, identifiable by its cathode band marking. For bi-directional protection, Vishay specifies CA-suffix variants (e.g., SA58CA). Using SA58-E3/73 in reverse-biased configurations risks permanent breakdown and failure - always verify polarity during PCB layout and assembly.
What is the peak forward surge current rating for SA58-E3/73?
The SA58-E3/73 is rated for a non-repetitive peak forward surge current (IFSM) of 70 A, tested with an 8.3 ms single half-sine waveform. This rating validates its ability to survive high-energy inrush or load-dump events without parametric shift or catastrophic failure - essential for 12 V automotive power rail protection.
SA58-E3/73 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:
- 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-E3/73 FAQ
1.How can I place an order for SA58-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA58-E3/73 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 SA58-E3/73 reliable?
The price and inventory of SA58-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA58-E3/73 is usually 5 days.
3.What payment methods are accepted for SA58-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA58-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA58-E3/73?
SA58-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA58-E3/73 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 SA58-E3/73?
For technical support, including SA58-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA58-E3/73 requirements.
6.How does Aetrix verify that SA58-E3/73 is sourced from the original manufacturer or authorized distributors?
All SA58-E3/73 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 SA58-E3/73 meets industry standards.
7.What is the process for return or replacement of SA58-E3/73?
All SA58-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with SA58-E3/73, 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 SA58-E3/73 part is unused and in its original packaging.
Return procedure for SA58-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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