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Vishay General Semiconductor - Diodes Division SMA5J15HE3/61
- Part No.:
- SMA5J15HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J15HE3/61.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,275
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Product details
Overview
SMA5J15HE3/61 from Vishay General Semiconductor is a unidirectional 500 W Transient Voltage Suppressor (TVS) diode in DO-214AC (SMA) package, with 15 V standoff voltage (VWM), 16.7–18.5 V breakdown voltage (VBR), and 24.4 V clamping voltage (VC) at 20.5 A peak pulse current (IPPM). It is AEC-Q101 qualified and used for automotive power line surge protection.
For engineers reviewing the SMA5J15HE3/61 datasheet, SMA5J15HE3/61 pinout, SMA5J15HE3/61 application, or SMA5J15HE3/61 equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, RoHS-compliant matte tin plating, MSL Level 1 rating, and 500 W peak pulse power handling under 10/1000 µs waveform.
Technical Context
This TVS diode operates as a clamping device in series with power rails or signal lines, conducting only when reverse voltage exceeds its VBR threshold to limit transient overvoltage. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM).
Designed for high-energy transients, it delivers 500 W peak pulse power dissipation with low incremental surge resistance and fast response time (<1 ns), enabling robust protection of downstream MOSFETs, ICs, and sensor interfaces against inductive switching spikes and ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 16.7 V / 18.5 V - guaranteed breakdown range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 24.4 V - clamped voltage during 20.5 A 10/1000 µs surge, limiting stress on protected circuitry |
| PPPM | 500 W - peak transient energy absorption capability under standardized waveform |
| TJ max | +150 °C - maximum junction temperature, supporting under-hood automotive use |
| Polarity | Unidirectional - cathode-banded; blocks forward current until VBR exceeded in reverse |
| MSL Level | Level 1 (per J-STD-020) - no floor life limitation, suitable for standard SMT reflow up to 260 °C peak |
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 indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); conducts during overvoltage to shunt surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving clamping precision |
| MSL Level 1 rating | Enables direct placement into reflow without dry-pack or baking requirements |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance, suitable for high-reliability industrial and automotive PCBs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs, lighting modules, and body control units from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 15 V. Use Value: Limits peak voltage to 24.4 V during 500 W transients, preventing damage to 36 V-rated regulators and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to field wiring noise. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb coupled EFT and lightning-induced surges on 4–20 mA or 0–10 V lines. Use Value: Clamps transients within nanoseconds while maintaining <1.0 µA leakage at 15 V, preserving signal integrity and ADC accuracy. |
| DC Motor Drive Output Protection | Power Supply Input Stage Protection |
Use Scenario: Shielding H-bridge MOSFETs and gate drivers from inductive kickback during motor commutation in HVAC actuators and seat controls. IC Role / Device Role / Timing Role: Unidirectional TVS placed across motor terminals or supply rail to divert flyback energy. Use Value: Withstands 40 A non-repetitive forward surge (IFSM), enabling reliable suppression of repetitive inductive spikes without degradation. | Use Scenario: Front-end protection for DC-DC converters in telecom power systems subjected to long-duration surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary clamping device on input bus, coordinated with upstream fuses and common-mode chokes. Use Value: Delivers 500 W peak power rating with 80 °C/W thermal resistance, allowing effective heat dissipation on standard 5 mm × 5 mm copper pads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J15A-E3/61 | Commercial-grade (non-AEC-Q101), same electrical specs and DO-214AC package | Lacks automotive qualification; not suitable for under-hood or safety-critical systems | Select when cost-sensitive industrial or consumer designs do not require automotive reliability validation |
| 1.5KE15A | Through-hole DO-201 package, higher RθJA (~100 °C/W), same 15 V VWM and 24.4 V VC | Requires PCB real estate and wave-solder process; less suitable for high-density automotive PCBs | Choose for legacy through-hole designs or where thermal mass of leaded package improves single-pulse survivability |
Compared with SMA5J15A-E3/61 and 1.5KE15A, the SMA5J15HE3/61 uniquely combines AEC-Q101 qualification, surface-mount DO-214AC packaging, and MSL Level 1 compatibility-making it the preferred choice for new automotive electronics requiring zero reflow risk and validated lifetime performance.
Availability
SMA5J15HE3/61 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and DC motor drive output safeguarding requiring stable component supply and full traceability.
Supply support for SMA5J15HE3/61 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMA5J series is designed specifically for high-power transient suppression in harsh environments-including automotive, industrial, and telecom-where 500 W surge handling, AEC-Q101 compliance, and compact surface-mount form factor are essential.
FAQ
What is the clamping voltage of the SMA5J15HE3/61 under a 10/1000 µs surge?
The SMA5J15HE3/61 has a maximum clamping voltage (VC) of 24.4 V at 20.5 A peak pulse current (IPPM), measured under the standardized 10/1000 µs double-exponential waveform. This value ensures downstream components rated for ≤28 V operation remain within safe voltage limits during transient events. The SMA5J15HE3/61 achieves this clamping performance with low incremental surge resistance and fast response time.
Is the SMA5J15HE3/61 suitable for automotive applications?
Yes, the SMA5J15HE3/61 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, MSL Level 1 reflow compatibility, and JESD 201 Class 2 whisker resistance meet stringent automotive manufacturing and reliability requirements. The SMA5J15HE3/61 is commonly deployed in body control modules, lighting systems, and motor drivers.
What does the "HE3" suffix indicate in SMA5J15HE3/61?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes the part from commercial-grade "E3" variants (e.g., SMA5J15A-E3/61) and confirms suitability for high-reliability automotive and industrial applications. The SMA5J15HE3/61 also features matte tin-plated leads compliant with J-STD-002 solderability standards.
How does the SMA5J15HE3/61 differ from bi-directional TVS diodes like SMA5J15CA?
The SMA5J15HE3/61 is unidirectional and functions only in reverse bias-clamping positive transients on the cathode side-while SMA5J15CA is bi-directional and suppresses both polarities. The SMA5J15HE3/61 supports forward surge current (IFSM = 40 A), making it appropriate for DC power line protection where forward conduction may occur during fault conditions, unlike bi-directional types.
What is the thermal resistance of the SMA5J15HE3/61, and how does it affect layout?
The SMA5J15HE3/61 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. To maintain safe junction temperatures during repeated surges, PCB layout must provide adequate copper area and thermal vias. The SMA5J15HE3/61's DO-214AC package enables efficient heat spreading without requiring external heatsinks in most automotive applications.
SMA5J15HE3/61 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 26.9V
- Current - Peak Pulse (10/1000µs):
- 18.6A
- 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)
SMA5J15HE3/61 FAQ
1.How can I place an order for SMA5J15HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J15HE3/61 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 SMA5J15HE3/61 reliable?
The price and inventory of SMA5J15HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J15HE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J15HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J15HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J15HE3/61?
SMA5J15HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J15HE3/61 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 SMA5J15HE3/61?
For technical support, including SMA5J15HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J15HE3/61 requirements.
6.How does Aetrix verify that SMA5J15HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J15HE3/61 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 SMA5J15HE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J15HE3/61?
All SMA5J15HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J15HE3/61, 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 SMA5J15HE3/61 part is unused and in its original packaging.
Return procedure for SMA5J15HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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