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Vishay General Semiconductor - Diodes Division SMA5J15AHM3_A/I
- Part No.:
- SMA5J15AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J15AHM3_A/I.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,002
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Product details
Overview
SMA5J15AHM3_A/I from Vishay General Semiconductor is a unidirectional 15 V standoff Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 500 W peak pulse power, 24.4 V clamping voltage at 20.5 A surge current, and -55 °C to +150 °C operating junction temperature. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial power electronics.
For engineers reviewing the SMA5J15AHM3_A/I datasheet, SMA5J15AHM3_A/I pinout, SMA5J15AHM3_A/I application, or SMA5J15AHM3_A/I equivalent, key selection criteria include its 15 V stand-off voltage, 24.4 V clamping performance under 10/1000 µs surge, AEC-Q101 qualification status, halogen-free RoHS compliance, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device with a specified breakdown voltage range of 16.7–18.5 V at 1 mA test current and maximum reverse leakage of 1.0 µA at 15 V stand-off. Its low incremental surge resistance enables fast response to transient events while maintaining stable clamping behavior across temperature.
The device uses a glass-passivated silicon junction housed in an SMA (DO-214AC) surface-mount package with matte tin-plated leads, meeting J-STD-002 solderability and JESD22-B102 whisker resistance standards. It is rated for 40 A non-repetitive forward surge current and exhibits thermal resistance of 25 °C/W junction-to-lead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 15 V - Maximum continuous reverse voltage before significant conduction begins |
| Clamping Voltage (VC) | 24.4 V at 20.5 A - Peak voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power (PPPM) | 500 W - Surge energy handling capability per single transient event |
| Breakdown Voltage (VBR) | 16.7–18.5 V at 1 mA - Confirmed voltage range where device enters avalanche conduction |
| Operating Temperature | -55 °C to +150 °C - Validated junction temperature range for reliable operation |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with cathode band marking |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with molded UL 94 V-0 compound and matte tin-plated leads. Cathode indicated by band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance reference in unidirectional protection configuration |
| Cathode | Avalanche conduction terminal | Connected to line being protected; clamps transients to VWM + margin when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, RoHS-compliant construction | Meets environmental compliance requirements for automotive and industrial production without compromising surge robustness |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| Glass-passivated junction | Ensures stable electrical characteristics and long-term stability under repeated surge stress |
| MSL Level 1 rating (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or special handling |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails and load-dump sensitive nodes in body control modules and lighting drivers. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power rail and ground to shunt load-dump spikes exceeding 15 V. Use Value: Limits transient voltage to ≤24.4 V during ISO 7637-2 Pulse 5a events, preventing damage to downstream regulators and microcontrollers. |
Use Scenario: Safeguarding analog output lines of pressure and temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Point-of-entry protection on sensor output traces exposed to EMI and relay-induced transients. Use Value: Maintains signal integrity by clamping induced surges before they distort 4–20 mA or 0–10 V outputs, preserving measurement accuracy. |
| DC-DC Converter Input Stage | Motor Drive Gate Driver Protection |
Use Scenario: Input-side transient suppression for buck converters powering infotainment head units. IC Role / Device Role / Timing Role: Standoff-rated TVS placed upstream of input capacitors to absorb line transients before regulation. Use Value: Prevents overvoltage shutdown or latch-up in controller ICs by limiting input rail excursions to safe levels during battery dump events. |
Use Scenario: Protection of high-side and low-side gate driver inputs in BLDC motor inverters. IC Role / Device Role / Timing Role: Clamping diode on gate drive signal lines to suppress Miller-induced voltage spikes during switching transitions. Use Value: Avoids false turn-on or gate oxide stress by holding gate-source voltage within ±20 V limits during fast dv/dt events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J15AHE3_A/I | Same electrical specs but RoHS-compliant commercial grade (non-AEC-Q101); no halogen-free designation | Lacks automotive qualification; suitable for consumer or industrial equipment without AEC requirements | Select when AEC-Q101 is not mandated and halogen-free content is not required |
| SMA5J15A-M3/61 | Identical electrical ratings; same halogen-free RoHS compliance; differs only in packaging format (61 = 7" reel, 1800 pcs) | No functional difference; identical use cases and board-level performance | Choose based on preferred tape-and-reel size and volume procurement needs |
Compared with SMA5J15AHM3_A/I, the HE3 variant omits AEC-Q101 validation and halogen-free certification, while the M3/61 version retains full equivalence but ships in smaller reels-making SMA5J15AHM3_A/I the optimal choice for automotive-tier production requiring both qualification and material compliance.
Availability
SMA5J15AHM3_A/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, DC-DC converter inputs, and motor drive gate protection requiring stable component supply and long-term lifecycle support.
Supply support for SMA5J15AHM3_A/I 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 efficiency, and automotive-grade qualification.
The SMA5J series was designed specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness, compact size, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the SMA5J15AHM3_A/I under a 10/1000 µs surge?
The SMA5J15AHM3_A/I clamps to a maximum of 24.4 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 20.5 A. This value is measured per IEC 61000-4-5 and ANSI/IEEE C62.35 standards and remains valid across the full operating temperature range of -55 °C to +150 °C. The SMA5J15AHM3_A/I achieves this performance using a glass-passivated silicon junction optimized for low dynamic impedance.
Is the SMA5J15AHM3_A/I qualified for automotive applications?
Yes, the SMA5J15AHM3_A/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3" and documentation in datasheet 88875. This qualification covers stress tests including temperature cycling, humidity bias, mechanical shock, and accelerated life testing. The SMA5J15AHM3_A/I is intended for use in automotive subsystems such as body electronics, lighting, and powertrain auxiliary circuits where transient immunity is critical.
What does the "HM3" suffix indicate in SMA5J15AHM3_A/I?
The "HM3" suffix in SMA5J15AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. "H" identifies the AEC-Q101 grade, "M3" specifies halogen-free RoHS compliance, and "_A/I" indicates revision A in 13-inch tape-and-reel packaging (7500 units). This distinguishes it from commercial variants like HE3 (RoHS only) or E3 (standard RoHS without halogen-free or automotive qualification).
Can the SMA5J15AHM3_A/I be used in bidirectional configurations?
No, the SMA5J15AHM3_A/I is a unidirectional TVS diode, as indicated by its "A" suffix and cathode band marking. Bidirectional versions use the "CA" suffix (e.g., SMA5J15CA) and lack polarity marking. Using SMA5J15AHM3_A/I in reverse-biased configurations will result in forward conduction above ~0.7 V, making it unsuitable for AC or dual-polarity protection. For bidirectional protection, select SMA5J15CA instead.
What is the thermal resistance from junction to lead for the SMA5J15AHM3_A/I?
The SMA5J15AHM3_A/I has a typical thermal resistance of 25 °C/W from junction to lead (RθJL), measured under standard mounting conditions on 0.2" × 0.2" copper pads. This value supports effective heat dissipation during repetitive surge events and enables reliable operation up to the maximum junction temperature of +150 °C. The SMA5J15AHM3_A/I's low RθJL contributes to its ability to sustain multiple 500 W pulses without thermal runaway.
SMA5J15AHM3_A/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J15AHM3_A/I FAQ
1.How can I place an order for SMA5J15AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J15AHM3_A/I 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 SMA5J15AHM3_A/I reliable?
The price and inventory of SMA5J15AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J15AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMA5J15AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J15AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J15AHM3_A/I?
SMA5J15AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J15AHM3_A/I 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 SMA5J15AHM3_A/I?
For technical support, including SMA5J15AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J15AHM3_A/I requirements.
6.How does Aetrix verify that SMA5J15AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMA5J15AHM3_A/I 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 SMA5J15AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMA5J15AHM3_A/I?
All SMA5J15AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J15AHM3_A/I, 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 SMA5J15AHM3_A/I part is unused and in its original packaging.
Return procedure for SMA5J15AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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