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Vishay General Semiconductor - Diodes Division SMA5J15AHE3_A/H
- Part No.:
- SMA5J15AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J15AHE3_A/H.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,088
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Product details
Overview
SMA5J15AHE3_A/H 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 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 1 mA, 24.4 V clamping voltage (VC) at 20.5 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 μs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the SMA5J15AHE3_A/H datasheet, SMA5J15AHE3_A/H pinout, SMA5J15AHE3_A/H application, or SMA5J15AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, 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 remains non-conductive below VWM = 15 V and rapidly transitions to low-impedance conduction above VBR to limit transient overvoltages. Its glass-passivated junction ensures stable leakage performance (<1.0 μA at VWM) and fast response time (<1.0 ps), critical for protecting sensitive downstream components from inductive switching spikes and ESD events.
The device is rated for 40 A non-repetitive forward surge current (IFSM) and exhibits thermal resistance of RθJA = 80 °C/W and RθJL = 25 °C/W. Its AEC-Q101 qualification confirms suitability for automotive applications where reliability under thermal cycling and mechanical stress is mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR min/max | 16.7 V / 18.5 V at IT = 1 mA - guaranteed breakdown range ensures consistent turn-on behavior across production lots. |
| VC @ IPPM | 24.4 V at 20.5 A - clamping voltage during 10/1000 μs surge; limits voltage seen by protected IC to safe level. |
| PPPM | 500 W - peak pulse power handling capacity; supports robust protection against IEC 61000-4-5 Level 3 surges. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| Polarity | Unidirectional - cathode marked with band; blocks reverse current until breakdown, ideal for DC power line protection. |
| MSL Level | Level 1 per J-STD-020 - no floor life limitation; compatible with standard reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path); conducts during positive transients when cathode is biased higher. |
| Cathode | Reverse-biased terminal | Marked with band; connected to protected line (e.g., 12 V rail); initiates clamping when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass passivated junction | Ensures stable reverse leakage (<1.0 μA) and long-term parameter stability under thermal stress and humidity exposure. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping precision for sensitive logic-level interfaces. |
| MSL Level 1 compliance | Enables use in standard SMT assembly without dry-pack or baking requirements, reducing manufacturing overhead. |
| 500 W peak pulse power | Supports protection against high-energy surges such as load dump (ISO 7637-2 Pulse 5a) in 12 V vehicle systems. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and bulk capacitor. Use Value: Limits transient voltage to ≤24.4 V during 500 W surges, preventing damage to 36 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on 4–20 mA loop or 0–10 V analog outputs. Use Value: Sub-1 ns response time and <1.0 μA leakage preserve signal integrity while suppressing 1 kV EFT bursts per IEC 61000-4-4. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
Use Scenario: Input-side surge suppression in wall-mounted AC/DC adapters for smart home hubs and gateways. IC Role / Device Role / Timing Role: Primary-stage TVS on secondary-side DC output (e.g., 5 V/9 V/12 V rails). Use Value: Withstands repeated 10/1000 μs surges up to 20.5 A without degradation, extending adapter field lifetime. |
Use Scenario: Overvoltage protection on -48 V DC feeder lines supplying remote radio units in 4G/5G base stations. IC Role / Device Role / Timing Role: Unidirectional clamping device referenced to system ground on powered line. Use Value: 150 °C TJ max and AEC-Q101 qualification ensure operational stability in outdoor telecom cabinets with wide ambient swings. |
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 SMA package; RoHS-compliant but not automotive-qualified. | Lacks automotive qualification; suitable for consumer/industrial designs where AEC-Q101 is not mandated. | Select SMA5J15AHE3_A/H when automotive qualification, traceability, and extended temperature validation are required. |
| SMC5J15AHE3_A/H | Same electrical specs but in larger SMC (DO-214AB) package; higher thermal mass, RθJA = 35 °C/W vs. 80 °C/W. | Better power dissipation capability for sustained surge events; requires larger PCB footprint (7.11 mm × 6.22 mm vs. 4.93 mm × 3.99 mm). | Choose SMA5J15AHE3_A/H for space-constrained layouts; choose SMC5J15AHE3_A/H for higher thermal margin in high-ambient environments. |
Compared with SMA5J15A-E3/61, SMA5J15AHE3_A/H adds AEC-Q101 qualification and enhanced process controls for automotive use; compared with SMC5J15AHE3_A/H, it trades thermal performance for compact size - making SMA5J15AHE3_A/H optimal for cost-sensitive, space-limited automotive modules requiring validated reliability.
Availability
SMA5J15AHE3_A/H is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, and telecom power supply inputs requiring stable component supply, full traceability, and lifecycle continuity support.
Supply support for SMA5J15AHE3_A/H 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 part of Vishay's TRANSZORB® TVS platform, engineered for high-power-density transient suppression in automotive, industrial, and communications infrastructure where robustness and AEC-Q101 compliance are essential.
FAQ
What is the clamping voltage of the SMA5J15AHE3_A/H under a 10/1000 μs surge?
The SMA5J15AHE3_A/H has a maximum clamping voltage (VC) of 24.4 V at 20.5 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during surge events, ensuring compatibility with 24 V tolerant interfaces and downstream 3.3 V/5 V logic via appropriate series impedance.
Is the SMA5J15AHE3_A/H suitable for automotive applications?
Yes, the SMA5J15AHE3_A/H is AEC-Q101 qualified and manufactured with automotive-grade process controls, including enhanced testing for temperature cycling, humidity bias, and mechanical shock. Its 150 °C maximum junction temperature, MSL Level 1 rating, and RoHS-compliant matte tin plating make it suitable for engine control units, body electronics, and ADAS power domains where reliability under harsh conditions is mandatory.
What does the "HE3" suffix indicate in SMA5J15AHE3_A/H?
The "HE3" suffix in SMA5J15AHE3_A/H denotes RoHS-compliant construction with AEC-Q101 qualification. The "H" indicates the packaging variant (7″ tape and reel, 1800 pcs), while "E3" specifies the environmental compliance grade. The "_A/H" revision code reflects the specific manufacturing lot and process revision per Vishay's internal documentation, ensuring traceability and consistency across production batches of SMA5J15AHE3_A/H.
How does the SMA5J15AHE3_A/H compare to bidirectional TVS diodes like SMA5J15CA?
The SMA5J15AHE3_A/H is unidirectional and intended for DC line protection where polarity is fixed, offering lower leakage (<1.0 μA at 15 V) and higher surge current capability in the forward direction. In contrast, SMA5J15CA is bidirectional with symmetrical clamping in both polarities but higher leakage and reduced forward surge rating. SMA5J15AHE3_A/H is preferred for 12 V power rails; SMA5J15CA suits AC-coupled or floating signal lines.
What PCB pad layout is recommended for optimal thermal performance of SMA5J15AHE3_A/H?
Vishay specifies mounting SMA5J15AHE3_A/H on 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 RθJA = 80 °C/W. Using smaller pads reduces surge capability and increases junction temperature; adding thermal vias beneath pads further improves heat dissipation in high-ambient environments where SMA5J15AHE3_A/H operates near its 150 °C TJ limit.
SMA5J15AHE3_A/H 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 20.5A
- 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)
SMA5J15AHE3_A/H FAQ
1.How can I place an order for SMA5J15AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J15AHE3_A/H 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 SMA5J15AHE3_A/H reliable?
The price and inventory of SMA5J15AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J15AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMA5J15AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J15AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J15AHE3_A/H?
SMA5J15AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J15AHE3_A/H 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 SMA5J15AHE3_A/H?
For technical support, including SMA5J15AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J15AHE3_A/H requirements.
6.How does Aetrix verify that SMA5J15AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMA5J15AHE3_A/H 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 SMA5J15AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMA5J15AHE3_A/H?
All SMA5J15AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J15AHE3_A/H, 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 SMA5J15AHE3_A/H part is unused and in its original packaging.
Return procedure for SMA5J15AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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