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Vishay General Semiconductor - Diodes Division SMA5J8.0AHE3/61
- Part No.:
- SMA5J8.0AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J8.0AHE3/61.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,622
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Product details
Overview
SMA5J8.0AHE3/61 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 a 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. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the SMA5J8.0AHE3/61 datasheet, SMA5J8.0AHE3/61 pinout, SMA5J8.0AHE3/61 application, or SMA5J8.0AHE3/61 equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, MSL Level 1 moisture sensitivity, matte tin-plated leads per J-STD-002, 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 transitions from high-impedance standby to low-impedance conduction when reverse voltage exceeds VBR, limiting transient energy to protected circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), while low incremental surge resistance enables effective suppression of 8.3 ms half-sine surges up to 40 A (IFSM).
The SMA5J8.0AHE3/61 is rated for -55 °C to +150 °C operating junction temperature and exhibits RθJA = 80 °C/W and RθJL = 25 °C/W thermal resistance. Its bidirectional counterpart is SMA5J8.0CA; this part is unidirectional with cathode band marking and intended for DC-biased rails where polarity-aware clamping is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse working voltage before clamping begins; sets upper limit for normal DC rail operation. |
| VBR (min/max) | 8.89 V / 9.83 V at 1 mA - Confirmed breakdown range ensures reliable turn-on margin above VWM without premature conduction. |
| VC @ IPPM | 13.6 V at 36.8 A - Clamping voltage under 10/1000 µs surge defines worst-case overvoltage seen by downstream ICs. |
| PPPM | 500 W - Peak pulse power handling capacity determines survivability against IEC 61000-4-5 Level 4 surges. |
| IFSM | 40 A - Surge current rating for 8.3 ms half-sine wave supports protection against inductive switch-off transients. |
| TJ max | +150 °C - Maximum junction temperature allows operation in under-hood automotive environments and sealed industrial enclosures. |
| MSL Level | Level 1 (260 °C peak reflow) - Enables standard lead-free SMT assembly without pre-baking. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode indicated by a band on one end; anode is unmarked. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VREV > VBR. |
| Anode (unmarked end) | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping loop during transient events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) across temperature and lifetime. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic interfaces. |
| Automated placement compatibility | Standardized SMA footprint and tape-and-reel packaging (61 code = 7" reel, 1800 units) support high-volume SMT lines. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power rail and chassis ground. Use Value: Limits transient voltage to ≤13.6 V, preventing damage to 16 V-rated LDOs and microcontrollers in engine control modules. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Point-of-entry TVS on 4–20 mA or 0–10 V signal traces before conditioning amplifiers. Use Value: Suppresses ESD and switching noise with <1.0 ns response, preserving signal integrity without adding capacitance-induced phase shift. |
| DC-DC Converter Input Stage | MOSFET Gate Driver Protection |
Use Scenario: Safeguarding buck converter inputs against back-EMF from relay coils and motor drivers. IC Role / Device Role / Timing Role: Primary-side TVS mounted directly at input capacitor terminals. Use Value: Absorbs 500 W pulses without degradation, maintaining regulation stability during repetitive 10/1000 µs surges. | Use Scenario: Preventing gate oxide failure in high-side N-channel MOSFETs driven by PWM controllers. IC Role / Device Role / Timing Role: Low-capacitance TVS across gate-source terminals to clamp Miller-induced spikes. Use Value: Clamps gate voltage to <13.6 V while adding only minimal junction capacitance, avoiding false turn-on. |
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-E3/61 | Same electrical specs, RoHS-compliant commercial grade (non-AEC-Q101); no automotive qualification. | Approved for consumer/industrial use only; not validated for automotive temperature cycling or humidity testing. | Select when AEC-Q101 is not required and cost optimization is prioritized. |
| SMA6J8.0AHE3/61 | Higher PPPM (600 W vs. 500 W); identical VWM, VBR, VC, and package; same AEC-Q101 qualification. | Supports higher-energy transients (e.g., ISO 7637-2 Pulse 5a) without derating; requires same PCB layout. | Choose for enhanced surge margin in harsh automotive environments where space permits same-footprint upgrade. |
Compared with SMA5J8.0A-E3/61, the SMA5J8.0AHE3/61 adds AEC-Q101 qualification for automotive use; compared with SMA6J8.0AHE3/61, it trades 100 W peak power for lower cost and broader availability while retaining identical clamping behavior and footprint.
Availability
SMA5J8.0AHE3/61 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and DC-DC converter input stage surge suppression requiring stable component supply across production lifecycles.
Supply support for SMA5J8.0AHE3/61 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, power density, and automotive-grade validation.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained SMT applications, targeting automotive, industrial, and telecom systems where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of the SMA5J8.0AHE3/61 under maximum surge conditions?
The SMA5J8.0AHE3/61 has a maximum clamping voltage (VC) of 13.6 V at 36.8 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during a full-rated transient event. The SMA5J8.0AHE3/61 maintains this clamping performance across its specified operating temperature range.
Is the SMA5J8.0AHE3/61 suitable for automotive applications?
Yes, the SMA5J8.0AHE3/61 is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements. The SMA5J8.0AHE3/61 is commonly deployed in engine control units, body electronics, and ADAS power domains where compliance with automotive reliability standards is mandatory.
What does the "/61" suffix indicate in SMA5J8.0AHE3/61?
The "/61" suffix denotes the preferred packaging configuration: 7-inch diameter plastic tape-and-reel with 1800 units per reel. This format is optimized for high-speed pick-and-place equipment and aligns with IPC-7351 land pattern recommendations for the SMA (DO-214AC) package. The SMA5J8.0AHE3/61 uses this standard carrier for consistent automated assembly yield and traceability.
How does the SMA5J8.0AHE3/61 differ from bidirectional TVS diodes like SMA5J8.0CA?
The SMA5J8.0AHE3/61 is unidirectional and functions only under reverse bias, with polarity marked by a cathode band; SMA5J8.0CA is bidirectional and symmetrical, lacking polarity marking. The SMA5J8.0AHE3/61 offers lower leakage (<1.0 µA at VWM) and is suited for DC-biased lines, whereas SMA5J8.0CA is used in AC-coupled or floating signal paths where voltage swings occur in both directions.
What thermal derating applies to the SMA5J8.0AHE3/61 above 25 °C ambient?
The SMA5J8.0AHE3/61 must be derated linearly above 25 °C ambient per Figure 2 in the datasheet: peak pulse power decreases by approximately 0.6% per °C rise. At 100 °C ambient, its effective PPPM drops to ~350 W. Derating is based on junction-to-ambient thermal resistance (RθJA = 80 °C/W) and assumes mounting on 5.0 mm × 5.0 mm copper pads per terminal, as specified in the test condition.
SMA5J8.0AHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J8.0AHE3/61 FAQ
1.How can I place an order for SMA5J8.0AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J8.0AHE3/61 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 SMA5J8.0AHE3/61 reliable?
The price and inventory of SMA5J8.0AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J8.0AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J8.0AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J8.0AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J8.0AHE3/61?
SMA5J8.0AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J8.0AHE3/61 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 SMA5J8.0AHE3/61?
For technical support, including SMA5J8.0AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J8.0AHE3/61 requirements.
6.How does Aetrix verify that SMA5J8.0AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J8.0AHE3/61 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 SMA5J8.0AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J8.0AHE3/61?
All SMA5J8.0AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J8.0AHE3/61, 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 SMA5J8.0AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J8.0AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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