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Vishay General Semiconductor - Diodes Division SA5.0HE3/54
- Part No.:
- SA5.0HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA5.0HE3/54.pdf
- Description:
- TVS DIODE 5VWM 9.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,480
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Product details
Overview
SA5.0HE3/54 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 sensitive electronics. It features a 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 500 W peak pulse power (10/1000 μs), clamping voltage of 9.2 V at 54.3 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SA5.0HE3/54 datasheet, SA5.0HE3/54 pinout, SA5.0HE3/54 application, or SA5.0HE3/54 equivalent, this device is selected for robust ESD and surge protection on DC power rails and low-voltage signal lines where fast response (<1 ns), low clamping ratio, and high surge current handling (54.3 A) are critical in automotive, industrial, and consumer systems.
Technical Context
The SA5.0HE3/54 operates as a uni-directional avalanche diode with glass-passivated junction, enabling sub-nanosecond response to transients. Its clamping behavior is defined by a maximum VC of 9.2 V at IPPM = 54.3 A under 10/1000 μs waveform, with incremental surge resistance derived from VC – VBR ≈ 2.5 V at rated current.
It supports continuous power dissipation of 3.0 W on infinite heatsink at TL = 75 °C and withstands 70 A non-repetitive forward surge (10 ms half-sine). The device is RoHS-compliant, matte tin-plated, and qualified per JESD201 Class 2 whisker test due to HE3 suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum reverse working voltage before conduction; sets upper limit for normal DC rail operation without leakage. |
| VBR (min/max) | 6.4 V / 7.07 V at 10 mA - Ensures reliable turn-on above nominal rail; tight 10.5% tolerance enables precise protection margining. |
| IPPM | 54.3 A - Peak surge current it safely clamps at 10/1000 μs; defines minimum system-level surge immunity level. |
| VC | 9.2 V - Clamped voltage during 54.3 A transient; determines maximum stress imposed on downstream ICs. |
| PPPM | 500 W - Peak pulse power rating; validates capability to absorb IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source). |
| TJ max | 175 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
| Leakage (ID) | 600 μA at VWM - Low reverse leakage preserves battery life in always-on circuits. |
Pinout & Package
SA5.0HE3/54 uses the DO-204AC (DO-15) axial-leaded package: molded epoxy case with matte tin-plated leads, 0.300" (7.6 mm) minimum lead length, 0.140" (3.6 mm) body diameter, and polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side connection | Connected to ground or lower-potential node in uni-directional configuration; enables clamping when cathode exceeds anode by >VBR. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., +5 V rail); conducts avalanche current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repetitive surge stress. |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive powertrain and body electronics requiring zero-failure field performance. |
| 500 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive end equipment. |
| Low clamping voltage (9.2 V @ 54.3 A) | Provides 4.2 V headroom below typical 13.5 V automotive battery clamp, protecting 5 V logic interfaces. |
| Matte tin plating & JESD201 Class 2 whisker resistance | Ensures solder joint integrity and long-term interconnect reliability in high-vibration environments. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller supply rails in automotive body control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Uni-directional TVS placed between +5 V rail and ground to shunt transients before they reach MCU VDD pins. Use Value: Clamps 54.3 A surges to ≤9.2 V, preserving MCU functionality during 12 V system transients up to 400 V. | Use Scenario: Safeguarding analog outputs of pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted at sensor connector to suppress ESD (IEC 61000-4-2 ±8 kV contact) and inductive switching noise. Use Value: Sub-ns response limits voltage overshoot to <9.2 V, preventing ADC input saturation and data corruption. |
| Consumer USB Port ESD Protection | Telecom DC Power Input Protection |
Use Scenario: Secondary-level ESD protection on 5 V VBUS line of USB 2.0 host ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary common-mode choke to handle differential-mode ESD events. Use Value: 600 μA leakage at 5 V ensures minimal impact on USB suspend current budget while clamping ±15 kV air discharge. | Use Scenario: Overvoltage suppression on -48 V telecom power feed inputs subject to lightning-induced surges. IC Role / Device Role / Timing Role: Used in series with higher-voltage TVS (e.g., SA15CA) to extend clamping range and reduce thermal stress. Use Value: Enables staged clamping architecture with predictable VC and low incremental resistance for coordinated surge sharing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0AHE3/A | Same VWM/VBR/PPPM, but SMA package (surface-mount); lower IPPM (43.4 A) and higher VC (9.6 V). | Requires PCB rework for SMT layout; better suited for space-constrained designs with automated assembly. | Select SMAJ5.0AHE3/A when board real estate is limited and reflow compatibility is required. |
| 1N6105A | Legacy DO-15 part with identical VWM (5.0 V), but lower PPPM (300 W), higher VC (10.5 V), and no AEC-Q101 qualification. | Lacks automotive qualification and modern surge margin; suitable only for cost-sensitive commercial applications. | Choose 1N6105A only for non-automotive, non-critical legacy designs where qualification is not required. |
Compared with SMAJ5.0AHE3/A and 1N6105A, SA5.0HE3/54 delivers superior surge current handling (54.3 A vs. 43.4 A / 33.3 A), tighter clamping (9.2 V vs. 9.6 V / 10.5 V), and full AEC-Q101 compliance-making it the preferred choice for new automotive and industrial designs demanding proven reliability.
Availability
SA5.0HE3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer USB power protection, and telecom DC input protection requiring stable component supply across multi-year production cycles.
Supply support for SA5.0HE3/54 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 high-reliability, automotive-qualified components.
The SAxxA family was 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 key difference between SA5.0HE3/54 and SA5.0A-E3/54?
The SA5.0HE3/54 carries the HE3 suffix, indicating AEC-Q101 qualification and JESD201 Class 2 whisker resistance, whereas SA5.0A-E3/54 (E3 suffix) is RoHS-compliant but only JESD201 Class 1A qualified. Both share identical electrical specs (VWM = 5.0 V, VBR = 6.4–7.07 V, PPPM = 500 W), but SA5.0HE3/54 is certified for automotive under-hood use. SA5.0HE3/54 meets stricter reliability testing including temperature cycling, humidity bias, and mechanical shock per AEC-Q101.
Does SA5.0HE3/54 support bi-directional transient suppression?
No, SA5.0HE3/54 is a uni-directional TVS diode, as confirmed by its part number suffix "A" (not "CA") and specification table listing only uni-directional parameters (e.g., IFSM = 70 A, VF = 3.5 V). Bi-directional variants like SA5.0CA have symmetric breakdown in both polarities and no forward voltage rating. SA5.0HE3/54 must be installed with cathode toward the protected line and anode to ground for proper operation.
What is the maximum clamping voltage of SA5.0HE3/54 under standard test conditions?
The maximum clamping voltage (VC) of SA5.0HE3/54 is 9.2 V, measured at peak pulse current (IPPM) of 54.3 A using a 10/1000 μs waveform per Figure 1 and Table on page 2 of Vishay document 88378. This value represents worst-case voltage seen by downstream circuitry during a full-rated surge event and is guaranteed across temperature and production lot.
Can SA5.0HE3/54 be used in parallel for higher surge current handling?
No-SA5.0HE3/54 should not be paralleled without external balancing resistors, as minor VBR tolerances (6.4–7.07 V) cause current imbalance and potential thermal runaway. Vishay does not characterize or recommend paralleling for derating. For higher surge capacity, select a single higher-rated device (e.g., SA6.0HE3/54 or SA7.0HE3/54) or implement staged protection with upstream current-limiting impedance.
Is SA5.0HE3/54 compatible with lead-free reflow soldering processes?
Yes, SA5.0HE3/54 features matte tin-plated leads compliant with J-STD-002 and JESD22-B102, supporting lead-free reflow profiles up to 260 °C peak. Its molding compound meets UL 94 V-0 flammability rating, and the device withstands solder dip at 275 °C for 10 seconds per JESD22-B106. No special pre-conditioning is required prior to reflow, and SA5.0HE3/54 is rated for standard Pb-free assembly.
SA5.0HE3/54 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 52.1A
- 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)
SA5.0HE3/54 FAQ
1.How can I place an order for SA5.0HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA5.0HE3/54 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 SA5.0HE3/54 reliable?
The price and inventory of SA5.0HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA5.0HE3/54 is usually 5 days.
3.What payment methods are accepted for SA5.0HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA5.0HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA5.0HE3/54?
SA5.0HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA5.0HE3/54 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 SA5.0HE3/54?
For technical support, including SA5.0HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA5.0HE3/54 requirements.
6.How does Aetrix verify that SA5.0HE3/54 is sourced from the original manufacturer or authorized distributors?
All SA5.0HE3/54 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 SA5.0HE3/54 meets industry standards.
7.What is the process for return or replacement of SA5.0HE3/54?
All SA5.0HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA5.0HE3/54, 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 SA5.0HE3/54 part is unused and in its original packaging.
Return procedure for SA5.0HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA5.0HE3/54 Tags
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