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Vishay General Semiconductor - Diodes Division SA58HE3/54
- Part No.:
- SA58HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA58HE3/54.pdf
- Description:
- TVS DIODE 58VWM 103VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,042
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Product details
Overview
SA58HE3/54 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 54 V stand-off voltage (VWM), 60–66.3 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 μs), 5.7 A peak pulse current (IPPM), and 87.1 V maximum clamping voltage (VC). It protects signal lines in automotive sensor interfaces against inductive switching transients.
For engineers reviewing the SA58HE3/54 datasheet, SA58HE3/54 pinout, SA58HE3/54 application, or SA58HE3/54 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, DO-15 mechanical compatibility, and 175 °C junction temperature rating for under-hood automotive use.
Technical Context
The SA58HE3/54 operates as a bi-directional avalanche diode with symmetrical reverse/forward clamping behavior, enabling protection of AC-coupled or differential signal paths without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance.
Designed for repetitive transient suppression, it sustains 500 W peak pulse power at 0.01 % duty cycle (10/1000 μs waveform) and derates linearly above 25 °C ambient per Fig. 2. Clamping begins at 60 V and limits to ≤87.1 V at 5.7 A, delivering predictable overvoltage limiting for I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse/forward voltage before clamping initiates; defines safe operating window for protected circuitry. |
| VBR (min/max) | 60.0 V / 66.3 V at 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on within specified tolerance band. |
| IPPM | 5.7 A - Peak current handled at 10/1000 μs waveform; determines minimum trace width and PCB layout margin for transient path. |
| VC | 87.1 V - Maximum clamped voltage at IPPM; sets upper bound on voltage seen by downstream ICs during ESD or load dump. |
| PPPM | 500 W - Peak pulse power rating; validates suitability for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3/4 transients. |
| TJ max | 175 °C - Maximum junction temperature; supports operation in high-ambient automotive engine compartments. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronics reliability, including temperature cycling and HTRB. |
Pinout & Package
SA58HE3/54 is housed in a DO-204AC (DO-15) molded epoxy package with matte tin-plated leads. The device is bi-directional and unmarked - no polarity band or cathode indicator is present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | Either terminal serves as anode or cathode depending on transient polarity; enables single-device protection of AC or differential signals. |
| Lead 1 / Lead 2 | Current conduction path | Leads provide low-inductance path to ground or rail; solderable per J-STD-002; withstands 275 °C dip for 10 s. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over lifetime and temperature; eliminates surface leakage paths that degrade clamping consistency. |
| 500 W peak pulse power (10/1000 μs) | Supports robust protection against automotive load-dump and inductive-switching transients without thermal runaway. |
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control units, body controllers, and ADAS sensor modules. |
| Low incremental clamping resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD), improving immunity margin for 3.3 V or 5 V logic interfaces. |
| DO-204AC (DO-15) package | Industry-standard footprint compatible with legacy TVS layouts; enables drop-in replacement in existing designs. |
Applications
| Automotive Sensor Interface | Industrial CAN Bus Node |
|---|---|
Use Scenario: Protecting LIN or SENT signal lines from battery transients and ESD in door module sensors. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and chassis ground. Use Value: Limits induced surges to ≤87.1 V, preserving integrity of 5 V microcontroller inputs and preventing latch-up. | Use Scenario: Guarding CAN_H/CAN_L differential pair against ISO 7637-2 Pulse 1 (inductive switch-off) in factory automation nodes. IC Role / Device Role / Timing Role: Symmetrical clamping element across differential bus, referenced to local ground. Use Value: Maintains common-mode noise rejection while suppressing ±100 V transients without polarity biasing. |
| Consumer Power Adapter Feedback Loop | Telecom DSL Line Interface |
Use Scenario: Safeguarding optocoupler feedback path in isolated AC/DC adapters against mains-borne surges. IC Role / Device Role / Timing Role: Bi-directional shunt protector across secondary-side error amplifier input. Use Value: Prevents false regulation or shutdown during 1 kV/μs fast transients by clamping within 1 ns response time. | Use Scenario: Shielding ADSL/VDLS line drivers from lightning-induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Primary-level surge limiter before transformer coupling, connected line-to-line and line-to-ground. Use Value: Absorbs up to 500 W without degradation, meeting GR-1089-CORE Level 3 telecom surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54A-E3/54 | Uni-directional; 54 V VWM, 60–66.3 V VBR, same PPPM/VC, SMA package | Requires external polarity awareness; unsuitable for AC or floating differential lines | Select when protecting DC rails only and board space favors SMD over axial DO-15. |
| 1.5KE54A | Uni-directional; 54 V VWM, 60–66.3 V VBR, 1500 W PPPM, DO-201 package | Higher power rating but larger footprint; not AEC-Q101 qualified | Choose for non-automotive industrial systems needing higher single-pulse energy absorption. |
Compared with SMAJ54A-E3/54 and 1.5KE54A, SA58HE3/54 uniquely combines bi-directional symmetry, AEC-Q101 qualification, and DO-15 through-hole compatibility-making it optimal for automotive sensor harnesses and legacy-replacement designs where polarity-agnostic protection and mechanical robustness are required.
Availability
SA58HE3/54 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, and telecom line interface circuits requiring stable component supply and long-term lifecycle support.
Supply support for SA58HE3/54 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 passive components with emphasis on reliability and automotive-grade qualification.
The SAxx series is part of Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where consistent clamping and AEC-Q101 compliance are mandatory.
FAQ
What is the polarity configuration of SA58HE3/54?
SA58HE3/54 is a bi-directional TVS diode with no polarity marking-both terminals are functionally identical. This allows it to protect AC-coupled signals, differential buses like CAN or RS-485, and floating sensor outputs without regard to voltage polarity. Unlike uni-directional variants such as SA58A, the SA58HE3/54 does not have a cathode band and must not be substituted with polarity-sensitive devices unless circuit topology is verified.
Is SA58HE3/54 qualified for automotive applications?
Yes, SA58HE3/54 carries the HE3 suffix, which denotes AEC-Q101 qualification per Vishay's ordering nomenclature. It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and accelerated life testing required for automotive under-hood and chassis-mounted electronics. Its 175 °C maximum junction temperature and DO-204AC mechanical robustness further validate its suitability for automotive ECUs and sensor modules.
What is the clamping voltage of SA58HE3/54 at rated peak pulse current?
The maximum clamping voltage (VC) of SA58HE3/54 is 87.1 V at 5.7 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 7 in the datasheet and represents the worst-case voltage imposed on protected circuitry during full-rated transient events-critical for ensuring downstream ICs remain within absolute maximum ratings.
Can SA58HE3/54 replace SA58A in an existing design?
No-SA58HE3/54 is bi-directional while SA58A is uni-directional. Substituting SA58HE3/54 for SA58A may cause unintended conduction in DC-biased circuits due to lack of polarity discrimination. If replacing SA58A, verify that the application involves AC, differential, or floating signals; otherwise, select a uni-directional alternative like SMAJ54A-E3/54 or confirm system-level polarity tolerance before using SA58HE3/54.
What package type and lead finish does SA58HE3/54 use?
SA58HE3/54 uses the DO-204AC (DO-15) axial-leaded package with matte tin-plated leads compliant with J-STD-002 solderability standards. The molding compound meets UL 94 V-0 flammability rating, and the HE3 suffix confirms compliance with JESD 201 Class 2 whisker resistance-ensuring long-term reliability in high-vibration automotive environments.
SA58HE3/54 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:
- -
- 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)
SA58HE3/54 FAQ
1.How can I place an order for SA58HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA58HE3/54 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 SA58HE3/54 reliable?
The price and inventory of SA58HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA58HE3/54 is usually 5 days.
3.What payment methods are accepted for SA58HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA58HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA58HE3/54?
SA58HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA58HE3/54 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 SA58HE3/54?
For technical support, including SA58HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA58HE3/54 requirements.
6.How does Aetrix verify that SA58HE3/54 is sourced from the original manufacturer or authorized distributors?
All SA58HE3/54 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 SA58HE3/54 meets industry standards.
7.What is the process for return or replacement of SA58HE3/54?
All SA58HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA58HE3/54, 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 SA58HE3/54 part is unused and in its original packaging.
Return procedure for SA58HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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