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Vishay General Semiconductor - Diodes Division SMA5J8.0HE3/5A
- Part No.:
- SMA5J8.0HE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.0HE3/5A.pdf
- Description:
- TVS DIODE 8VWM 15VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,439
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Product details
Overview
SMA5J8.0HE3/5A 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, 8.89–9.83 V breakdown voltage at 10 mA, 13.6 V clamping voltage at 36.8 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMA5J8.0HE3/5A datasheet, SMA5J8.0HE3/5A pinout, SMA5J8.0HE3/5A application, or SMA5J8.0HE3/5A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, RoHS-compliant HE3 suffix with JESD 201 Class 2 whisker resistance, 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 to transients induced by inductive load switching or ESD events. Its low incremental surge resistance and excellent clamping capability ensure stable voltage limiting during 8.3 ms half-sine surges up to 40 A and repetitive 10/1000 µs pulses up to 500 W.
The SMA5J8.0HE3/5A is rated for -55 °C to +150 °C operating junction temperature, exhibits 80 °C/W typical junction-to-ambient thermal resistance, and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 8.0 V - maximum continuous reverse voltage before significant leakage |
| Breakdown Voltage (VBR) | 8.89–9.83 V at 10 mA - guaranteed avalanche conduction onset range |
| Clamping Voltage (VC) | 13.6 V at 36.8 A IPPM - limits transient voltage seen by protected circuit |
| Peak Pulse Power (PPPM) | 500 W (10/1000 µs) - energy-handling capacity under standardized surge waveform |
| Peak Pulse Current (IPPM) | 36.8 A - maximum non-repetitive surge current the device safely clamps |
| Junction Temperature Range | -55 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| Polarity | Unidirectional - cathode marked with band; blocks forward current until breakdown |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile plastic case meeting UL 94 V-0 flammability rating. Cathode identified by molded band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to protected line's lower-potential side (e.g., ground or return rail) |
| Cathode | Avalanche conduction terminal / Surge shunt node | Marked with band; connected to protected line's higher-potential side (e.g., supply rail or signal line) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Glass-passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives |
| MSL Level 1 rating | Enables standard SMT reflow without baking; peak 260 °C compatible |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal stress, critical for automotive longevity |
| Low profile DO-214AC package | 0.208" × 0.157" footprint enables dense PCB layouts while maintaining thermal pad area |
Applications
| Automotive Engine Control Unit (ECU) Power Input | Industrial CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Protects 12 V battery-supplied microcontroller power rails from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges above 13.6 V before reaching LDO or MCU. Use Value: Withstands 500 W pulses and maintains clamping below IC absolute maximum ratings, preventing latch-up or permanent damage. | Use Scenario: Shields CANH/CANL differential pair from ESD and inductive spikes in factory automation nodes. IC Role / Device Role / Timing Role: Paired SMA5J8.0HE3/5A devices (one per line) referenced to common ground, absorbing common-mode surges. Use Value: 13.6 V clamping ensures transceivers remain within ±40 V common-mode range while preserving signal integrity at 1 Mbps. |
| Consumer Appliance Motor Driver Board | Telecom Base Station DC Power Feed |
Use Scenario: Guards gate drivers and bootstrap circuits in BLDC motor inverters against back-EMF spikes. IC Role / Device Role / Timing Role: Mounted across HV DC bus (e.g., 24 V rail) to clamp turn-off transients from inductive windings. Use Value: 36.8 A IPPM rating handles repeated 10/1000 µs surges from PWM switching without degradation. | Use Scenario: Protects remote radio unit (RRU) power input from lightning-induced surges on outdoor DC feeder lines. IC Role / Device Role / Timing Role: First-stage suppression on -48 V telecom supply, upstream of DC/DC converters and PMICs. Use Value: AEC-Q101 qualification and 150 °C TJ max ensure reliability in uncooled outdoor enclosures exposed to solar heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J8.0A-E3/5A | Same electrical specs but commercial-grade (non-AEC-Q101); HE3 suffix adds Class 2 whisker resistance | Lacks automotive qualification; suitable for consumer/industrial where AEC-Q101 not mandated | Select when cost sensitivity outweighs automotive reliability requirements |
| SMC5J8.0AHE3/5A | Same VWM/VBR/VC but in larger DO-214AB (SMC) package; higher thermal mass and 1000 W PPPM rating | Requires larger PCB footprint; preferred for higher-energy surge environments (e.g., EV charging ports) | Select when system-level surge testing exceeds 500 W or board layout allows SMC footprint |
Compared with SMA5J8.0HE3/5A, the SMA5J8.0A-E3/5A offers identical clamping performance at lower qualification cost, while the SMC5J8.0AHE3/5A trades compactness for 2× pulse power headroom and improved thermal dissipation - enabling longer surge endurance in high-stress deployments.
Availability
SMA5J8.0HE3/5A is available at Aetrix Electronics and suitable for automotive electronics, industrial motor control, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMA5J8.0HE3/5A 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-power-density solutions.
The SMA5J series targets high-energy transient suppression in space-constrained applications, combining AEC-Q101 qualification, low-profile packaging, and consistent clamping performance across automotive and industrial voltage rails.
FAQ
What is the polarity configuration of the SMA5J8.0HE3/5A?
The SMA5J8.0HE3/5A is a unidirectional transient voltage suppressor diode. Its cathode is marked with a visible band on the DO-214AC package body. When installed, the cathode connects to the higher-potential line (e.g., VCC or signal), and the anode connects to ground or return - enabling avalanche conduction only during reverse overvoltage events. This configuration prevents forward conduction during normal operation.
Does the SMA5J8.0HE3/5A meet automotive qualification standards?
Yes, the SMA5J8.0HE3/5A is AEC-Q101 qualified, as confirmed by Vishay's documentation. The HE3 suffix denotes RoHS compliance and JESD 201 Class 2 whisker resistance, supporting use in automotive engine control units, body electronics, and ADAS modules where long-term reliability under thermal cycling and vibration is mandatory. Its -55 °C to +150 °C junction temperature range further validates automotive suitability.
What is the maximum clamping voltage of the SMA5J8.0HE3/5A under surge conditions?
The SMA5J8.0HE3/5A has a maximum clamping voltage (VC) of 13.6 V at its rated peak pulse current (IPPM) of 36.8 A, measured using the standardized 10/1000 µs double-exponential waveform. This value ensures protected downstream ICs - such as microcontrollers or CAN transceivers - remain within their absolute maximum voltage ratings during transient events, preventing latch-up or oxide damage.
How does the SMA5J8.0HE3/5A differ from the SMA5J8.0A-E3/5A?
The SMA5J8.0HE3/5A and SMA5J8.0A-E3/5A share identical electrical parameters (VWM, VBR, VC, IPPM, PPPM), but differ in qualification level and whisker resistance. The HE3 suffix indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas the E3 suffix denotes commercial-grade qualification and Class 1A whisker resistance. Both are RoHS compliant and use the same DO-214AC package.
What PCB pad layout is recommended for optimal thermal performance of the SMA5J8.0HE3/5A?
Vishay specifies mounting the SMA5J8.0HE3/5A on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 500 W peak pulse power. These pads must be thermally connected to internal ground/power planes via multiple vias to minimize junction-to-ambient thermal resistance. Deviating from this layout reduces surge handling capability - e.g., smaller pads may derate PPPM by up to 40% at elevated ambient temperatures.
SMA5J8.0HE3/5A 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)
SMA5J8.0HE3/5A FAQ
1.How can I place an order for SMA5J8.0HE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.0HE3/5A 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 SMA5J8.0HE3/5A reliable?
The price and inventory of SMA5J8.0HE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J8.0HE3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J8.0HE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.0HE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.0HE3/5A?
SMA5J8.0HE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.0HE3/5A 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 SMA5J8.0HE3/5A?
For technical support, including SMA5J8.0HE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.0HE3/5A requirements.
6.How does Aetrix verify that SMA5J8.0HE3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J8.0HE3/5A 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 SMA5J8.0HE3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J8.0HE3/5A?
All SMA5J8.0HE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.0HE3/5A, 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 SMA5J8.0HE3/5A part is unused and in its original packaging.
Return procedure for SMA5J8.0HE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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