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Vishay General Semiconductor - Diodes Division SMA5J8.0HE3/61
- Part No.:
- SMA5J8.0HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.0HE3/61.pdf
- Description:
- TVS DIODE 8VWM 15VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,864
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Product details
Overview
SMA5J8.0HE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor diode in DO-214AC (SMA) package, designed for high-energy surge protection on power and signal lines. It features 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 10 mA, 13.6 V clamping voltage (VC) at 36.8 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive power supplies.
For engineers reviewing the SMA5J8.0HE3/61 datasheet, SMA5J8.0HE3/61 pinout, SMA5J8.0HE3/61 application, or SMA5J8.0HE3/61 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant HE3 suffix (JESD 201 Class 2 whisker test), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to clamp transient overvoltages before downstream components are damaged. Its unidirectional configuration requires cathode-band orientation during PCB layout, and it conducts only in reverse-bias mode above VBR.
Thermal performance is defined by RθJA = 80 °C/W (typ.) and RθJL = 25 °C/W (typ.), enabling reliable operation up to 150 °C junction temperature when mounted per recommended pad layout. The 500 W PPPM rating applies under standardized 10/1000 µs waveform conditions with derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before significant leakage; sets upper limit for normal circuit operation |
| VBR min/max | 8.89 V / 9.83 V at 10 mA - guaranteed avalanche initiation range; ensures consistent turn-on across production lots |
| VC @ IPPM | 13.6 V at 36.8 A - clamped voltage during 500 W transient; defines worst-case stress on protected IC input |
| PPPM | 500 W (10/1000 µs) - peak surge energy handling capacity; validates suitability for ISO 7637-2 Pulse 1/2a/5a automotive transients |
| TJ max | +150 °C - maximum allowable junction temperature; supports under-hood automotive deployment with thermal margin |
| Polarity | Unidirectional - requires correct cathode-band alignment; prevents forward conduction during normal operation |
| Qualification | AEC-Q101 qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path terminal | Connected to lower-potential side (e.g., GND or return path); conducts during fault only if forward-biased beyond VF ≈ 3.5 V @ 25 A |
| Cathode | Avalanche clamping terminal | Marked with black band; connected to protected line (e.g., 12 V rail); initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without moisture-induced popcorning; no bake required prior to assembly |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving protection margin |
| JESD 201 Class 2 whisker resistance | Ensures long-term solder joint integrity in high-reliability automotive applications with extended thermal cycling |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump and jump-start transients on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 13.6 V while remaining inert below 8.0 V. Use Value: Prevents latch-up or permanent damage to MCU power inputs and CAN transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-clamping TVS shunting transients from sensor signal lines (e.g., 0–5 V ratiometric outputs) to ground. Use Value: Maintains signal integrity with <1 ns response and <1 pF junction capacitance (typ.), avoiding bandwidth degradation. |
| DC-DC Converter Input Protection | Motor Drive Gate Driver Protection |
Use Scenario: Safeguarding buck converter inputs against back-EMF spikes from relay coils or solenoid drivers. IC Role / Device Role / Timing Role: Stand-off-rated TVS absorbing repetitive 500 W pulses without degradation, mounted directly at converter input terminals. Use Value: Extends lifetime of input electrolytic capacitors and MOSFETs by limiting peak voltage to 13.6 V during 100 ms transients. | Use Scenario: Shielding high-side gate driver ICs from Miller-induced voltage spikes during IGBT/MOSFET switching. IC Role / Device Role / Timing Role: Low-inductance TVS placed across gate-to-source to clamp dv/dt-induced overshoot exceeding VGS(max). Use Value: Reduces risk of false turn-on and gate oxide rupture by clamping within 13.6 V at sub-100 ns timescales. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J8.0A-E3/61 | Same electrical specs, but commercial-grade (non-AEC-Q101); HE3 suffix adds whisker resistance and automotive qualification | Lacks AEC-Q101 validation; unsuitable for automotive OEM designs requiring qualification evidence | Select SMA5J8.0HE3/61 where automotive reliability certification and JESD 201 Class 2 compliance are mandatory |
| SMA6J8.0AHE3/61 | Higher PPPM (600 W vs. 500 W); same VWM/VBR/VC; identical DO-214AC package and pinout | Offers +20 % surge margin for harsher environments (e.g., commercial vehicle alternator load dump) | Choose SMA6J8.0AHE3/61 when design margin requires >500 W clamping capability without changing layout |
Compared with SMA5J8.0A-E3/61, SMA5J8.0HE3/61 adds AEC-Q101 qualification and enhanced whisker resistance - critical for automotive use - while SMA6J8.0AHE3/61 provides higher surge rating in identical footprint, enabling drop-in robustness upgrades without redesign.
Availability
SMA5J8.0HE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and DC-DC power supply designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMA5J8.0HE3/61 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 high-reliability, high-power-density solutions.
The SMA5J series is engineered for automotive and industrial transient suppression, delivering AEC-Q101-qualified, high-PPPM TVS diodes in compact DO-214AC packages optimized for space-constrained, thermally demanding applications.
FAQ
What is the clamping voltage of the SMA5J8.0HE3/61 under peak pulse conditions?
The SMA5J8.0HE3/61 has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current (IPPM) of 36.8 A using the standard 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions and defines the upper voltage limit imposed on protected circuits during surge events. The SMA5J8.0HE3/61 maintains this clamping performance across its qualified temperature range and after repeated surge exposures per AEC-Q101 stress testing.
Is the SMA5J8.0HE3/61 suitable for automotive applications?
Yes, the SMA5J8.0HE3/61 is explicitly AEC-Q101 qualified and carries the HE3 suffix indicating compliance with JESD 201 Class 2 whisker testing - both mandatory for automotive under-hood and chassis-mounted electronics. Its 150 °C maximum junction temperature, MSL Level 1 rating, and validated performance under ISO 7637-2 transients confirm its suitability for automotive power rail and sensor protection. The SMA5J8.0HE3/61 meets these requirements out-of-the-box without additional qualification.
What does the "HE3" suffix mean in SMA5J8.0HE3/61?
The "HE3" suffix in SMA5J8.0HE3/61 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - distinguishing it from the commercial-grade "E3" variant. HE3 devices undergo extended reliability stress testing including temperature cycling, high-temperature reverse bias, and mechanical shock, and are intended for automotive and high-reliability industrial use. The SMA5J8.0HE3/61 is fully compatible with lead-free reflow processes and requires no pre-bake.
How does the SMA5J8.0HE3/61 differ from the SMA5J8.0A-E3/61?
The SMA5J8.0HE3/61 and SMA5J8.0A-E3/61 share identical electrical parameters (VWM, VBR, VC, PPPM) and DO-214AC packaging, but differ in qualification and reliability: SMA5J8.0HE3/61 is AEC-Q101 qualified and passes JESD 201 Class 2 whisker testing, whereas SMA5J8.0A-E3/61 is commercial-grade only. The SMA5J8.0HE3/61 is therefore approved for automotive OEM designs, while SMA5J8.0A-E3/61 is restricted to non-automotive applications.
What is the thermal resistance of the SMA5J8.0HE3/61, and how does it affect layout?
The SMA5J8.0HE3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes the recommended pad layout shown in Vishay's DO-214AC outline drawing. To maintain TJ ≤ 150 °C under 500 W surge duty, PCB copper area and layer stack-up must be designed to meet this thermal impedance - undersized pads will cause excessive junction heating and premature failure. The SMA5J8.0HE3/61 data sheet specifies exact pad dimensions to achieve rated performance.
SMA5J8.0HE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 33.3A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J8.0HE3/61 FAQ
1.How can I place an order for SMA5J8.0HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.0HE3/61 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 SMA5J8.0HE3/61 reliable?
The price and inventory of SMA5J8.0HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J8.0HE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J8.0HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.0HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.0HE3/61?
SMA5J8.0HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.0HE3/61 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 SMA5J8.0HE3/61?
For technical support, including SMA5J8.0HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.0HE3/61 requirements.
6.How does Aetrix verify that SMA5J8.0HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J8.0HE3/61 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 SMA5J8.0HE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J8.0HE3/61?
All SMA5J8.0HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.0HE3/61, 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 SMA5J8.0HE3/61 part is unused and in its original packaging.
Return procedure for SMA5J8.0HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J8.0HE3/61 Tags
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