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Vishay General Semiconductor - Diodes Division SMA5J8.0A-E3/61
- Part No.:
- SMA5J8.0A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.0A-E3/61.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,966
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Product details
Overview
SMA5J8.0A-E3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) 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 1 mA), 13.6 V clamping voltage (VC) at 36.8 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMA5J8.0A-E3/61 datasheet, SMA5J8.0A-E3/61 pinout, SMA5J8.0A-E3/61 application, or SMA5J8.0A-E3/61 equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold, limiting transient energy to safe levels for downstream components. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while low incremental surge resistance enables effective suppression of 8.3 ms half-sine surges up to 40 A (IFSM).
The SMA5J8.0A-E3/61 is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance of 80 °C/W (junction-to-ambient) and 25 °C/W (junction-to-lead). It meets JESD201 Class 2 whisker resistance and is RoHS-compliant per base P/N-E3 designation, intended for commercial-grade applications without AEC-Q101 qualification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 8.89 V / 9.83 V at 1 mA - precise breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | 13.6 V at 36.8 A - clamped voltage during 500 W 10/1000 µs surge, limiting stress on protected IC |
| ID @ VWM | 1.0 µA - ultra-low reverse leakage ensuring minimal standby power loss |
| PPPM | 500 W - peak pulse power handling capability under standardized transient waveform |
| TJ max | +150 °C - maximum junction temperature enabling reliable operation in hot environments |
| RθJA | 80 °C/W - thermal resistance indicating need for adequate PCB copper area for heat dissipation |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse voltage reference | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Reverse voltage input / clamping node | Connected to protected line (e.g., 12 V rail or sensor output); conducts avalanche current during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Low profile SMA package | Enables compact PCB layout and compatibility with standard SMT pick-and-place equipment |
| Glass passivated junction | Ensures stable electrical characteristics and long-term reliability under thermal cycling |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak 260 °C without baking preconditioning |
| 500 W peak pulse power | Provides robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| 1.0 µA max reverse leakage | Minimizes quiescent current draw in battery-powered or low-power systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply lines in body control modules from load dump transients and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and chassis ground. Use Value: Limits transient voltage to ≤13.6 V during 500 W surges, preventing damage to MCU power inputs and CAN transceivers. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: Reverse-biased protection element across sensor output and ground. Use Value: Clamps ESD and cable discharge events to <14 V, preserving ADC accuracy and avoiding latch-up in front-end op-amps. |
| Consumer DC Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Input-stage protection for 5–12 V wall adapters exposed to mains-coupled surges and hot-plug transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus before LDO regulator. Use Value: Withstands 40 A non-repetitive forward surge (IFSM) and maintains <1 µA leakage for efficient no-load operation. | Use Scenario: Secondary-side transient suppression on Ethernet PHY power rails and bias lines in PoE-powered switches. IC Role / Device Role / Timing Role: Standoff-rated TVS on 3.3 V/5 V auxiliary rails feeding PHY ICs and magnetics bias windings. Use Value: 8.0 V VWM ensures no conduction during normal operation while clamping lightning-induced surges to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A-E3/61 | 400 W peak pulse power (vs. 500 W), same VWM/VBR, identical SMA package and pinout | Limited to lower-energy transients; not suitable for ISO 7637-2 Pulse 5a compliance | Select SMA5J8.0A-E3/61 when full 500 W surge margin is required for automotive or industrial standards |
| SMCJ8.0A-E3/61 | Same 500 W rating but in larger SMC (DO-214AB) package; higher thermal mass and RθJA = 35 °C/W | Requires more PCB area; better for sustained surge duty cycles or higher ambient temperatures | Choose SMA5J8.0A-E3/61 where space-constrained layouts demand SMA footprint without sacrificing power rating |
Compared with SMAJ8.0A-E3/61 and SMCJ8.0A-E3/61, the SMA5J8.0A-E3/61 uniquely delivers 500 W clamping capability in the smallest standard surface-mount TVS package, balancing board space, surge margin, and thermal performance for high-density power electronics.
Availability
SMA5J8.0A-E3/61 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and consumer DC adapter input circuits requiring stable component supply and RoHS-compliant manufacturing.
Supply support for SMA5J8.0A-E3/61 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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific performance.
The SMA5J series is part of Vishay's high-power-density TRANSZORB® TVS family, engineered specifically for demanding transient suppression in automotive, industrial, and telecom power systems where compact size and 500 W surge capability are critical.
FAQ
What is the polarity configuration of the SMA5J8.0A-E3/61?
The SMA5J8.0A-E3/61 is a unidirectional TVS diode, meaning it conducts only in reverse bias during overvoltage events. The cathode is marked by a band on the SMA package body, and the anode connects to ground or the lower-potential node. This configuration makes SMA5J8.0A-E3/61 suitable for DC power line protection where polarity is fixed, unlike bidirectional variants such as SMA5J8.0CA.
Does the SMA5J8.0A-E3/61 meet AEC-Q101 qualification?
No, the SMA5J8.0A-E3/61 is not AEC-Q101 qualified. It carries the "E3" suffix, indicating RoHS-compliant commercial grade construction. For automotive-qualified versions, Vishay offers SMA5J8.0AHE3_X (with "HE3" suffix), which adds AEC-Q101 qualification while retaining identical electrical specs and SMA packaging. Always verify the full part number suffix for qualification status.
What is the maximum clamping voltage of the SMA5J8.0A-E3/61 under surge conditions?
The SMA5J8.0A-E3/61 has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 36.8 A using the 10/1000 µs waveform. This value is measured at the device terminals and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
How does the SMA5J8.0A-E3/61 compare to the SMAJ8.0A-E3/61 in terms of surge capability?
The SMA5J8.0A-E3/61 provides 500 W peak pulse power handling versus 400 W for the SMAJ8.0A-E3/61, despite identical VWM (8.0 V) and VBR ranges. This 25 % higher surge rating allows SMA5J8.0A-E3/61 to absorb larger transients - such as ISO 7637-2 Pulse 5a - without degradation, making it preferred for harsher environments where margin is essential.
What PCB layout guidance applies to the SMA5J8.0A-E3/61 for optimal thermal performance?
Vishay specifies that the SMA5J8.0A-E3/61 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 500 W pulse power and thermal resistance of 80 °C/W. Reducing pad area increases junction temperature rise during surges and may cause premature failure; use internal ground/power planes and thermal vias if ambient temperatures exceed 70 °C.
SMA5J8.0A-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 36.8A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J8.0A-E3/61 FAQ
1.How can I place an order for SMA5J8.0A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.0A-E3/61 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 SMA5J8.0A-E3/61 reliable?
The price and inventory of SMA5J8.0A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J8.0A-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J8.0A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.0A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.0A-E3/61?
SMA5J8.0A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.0A-E3/61 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 SMA5J8.0A-E3/61?
For technical support, including SMA5J8.0A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.0A-E3/61 requirements.
6.How does Aetrix verify that SMA5J8.0A-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J8.0A-E3/61 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 SMA5J8.0A-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J8.0A-E3/61?
All SMA5J8.0A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.0A-E3/61, 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 SMA5J8.0A-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J8.0A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J8.0A-E3/61 Tags
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