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Vishay General Semiconductor - Diodes Division SMA5J16AHM3_A/I
- Part No.:
- SMA5J16AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16AHM3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,488
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Product details
Overview
SMA5J16AHM3_A/I 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 16 V stand-off voltage (VWM), 26.0 V clamping voltage (VC) at 19.2 A peak pulse current (IPPM), and 500 W peak pulse power (10/1000 µs waveform), commonly deployed to safeguard MOSFETs and sensor interfaces in automotive ECUs.
For engineers reviewing the SMA5J16AHM3_A/I datasheet, SMA5J16AHM3_A/I pinout, SMA5J16AHM3_A/I application, or SMA5J16AHM3_A/I equivalent, key selection criteria include verified clamping performance at rated IPPM, AEC-Q101 qualification status, unidirectional polarity marking, thermal resistance (RθJA = 80 °C/W), and halogen-free RoHS compliance per ordering suffix HM3.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance above VWM = 16 V, then rapidly avalanches below its breakdown range (VBR = 17.8–19.7 V at IT = 1 mA) to limit transient overvoltage. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns).
Rated for 150 °C maximum junction temperature and 40 A non-repetitive forward surge (IFSM, 8.3 ms half-sine), it is mounted on 5.0 mm × 5.0 mm copper pads per JEDEC standards. The SMA (DO-214AC) package supports automated placement and meets MSL Level 1 (260 °C reflow peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VC @ IPPM | 26.0 V - Clamped voltage at 19.2 A peak pulse current (10/1000 µs); determines maximum stress imposed on protected downstream ICs. |
| PPPM | 500 W - Peak pulse power handling capability; enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| IPPM | 19.2 A - Peak pulse current supported at VC; directly correlates with surge energy absorption (W × s) under standardized waveform. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance; informs PCB pad layout requirements for sustained surge duty cycles. |
| TJ max. | +150 °C - Maximum junction temperature rating; validates suitability for under-hood automotive environments. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 4.93 mm × 3.99 mm × 2.29 mm (L × W × H), matte tin-plated leads, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; forms current path during avalanche conduction. |
| Cathode (banded end) | High-side transient input terminal | Connected to protected line (e.g., 12 V supply or CAN-H); avalanche initiates here during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per JESD22-A101/A110. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets IEC 61249-2-21 and JEDEC J-STD-203 for green manufacturing; no brominated flame retardants in package material. |
| Low incremental surge resistance | Enables tighter VC/VBR ratio (26.0 V / 17.8 V ≈ 1.46), reducing let-through energy compared to higher-ratio TVS devices. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking; eliminates production delays in SMT assembly. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt-type transient voltage suppressor placed between VIN and GND, clamping surges within 1 ns to prevent MCU brown-out or latch-up. Use Value: With VC = 26.0 V at 19.2 A, it holds rail voltage below 28 V-well under typical 30 V absolute maximum ratings of automotive MCUs. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop drivers) in industrial PLC modules from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground on signal output, suppressing negative-going transients while preserving DC accuracy. Use Value: Leakage <1.0 µA at 16 V ensures minimal impact on loop calibration; low capacitance (<100 pF) avoids signal integrity degradation at ≤100 kHz bandwidth. |
| Consumer Power Adapter Input Protection | Telecom DC Power Feeding Protection |
Use Scenario: Secondary-side overvoltage suppression on 19 V laptop adapter outputs exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 16 V) placed across output terminals to clamp excursions beyond 26 V during fault conditions. Use Value: 500 W peak power rating handles repeated 10/1000 µs surges up to 19.2 A without degradation-meeting IEC 61000-4-5 Level 3 immunity requirements. |
Use Scenario: Protecting PoE-powered device inputs (e.g., IP cameras) from lightning-induced surges on 48 V DC feeding lines. IC Role / Device Role / Timing Role: Primary-stage unidirectional TVS on PSE side, clamping common-mode transients before they reach isolation transformers or DC/DC controllers. Use Value: RθJA = 80 °C/W allows operation at full 500 W rating with minimal heatsinking on standard FR-4 PCBs, supporting compact outdoor enclosure designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J16AHE3_A/I | Same electrical specs (VWM = 16 V, VC = 26.0 V), but RoHS-compliant commercial grade (not AEC-Q101 qualified); E3 suffix denotes standard tin plating. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and halogen-free material is not required. |
| SMA6J16A-M3 | Same VWM/VC ratings, but lower PPPM = 600 W (vs. 500 W), higher IPPM = 23.1 A, and different thermal resistance (RθJA = 70 °C/W). | Higher surge capacity suits more severe transient environments (e.g., heavy-duty vehicle alternators), but requires larger pad area for thermal management. | Choose when system-level testing demands >500 W surge margin and board space permits optimized thermal layout. |
Compared with SMA5J16AHE3_A/I, SMA5J16AHM3_A/I adds halogen-free construction and AEC-Q101 validation-critical for Tier-1 automotive sourcing-while SMA6J16A-M3 trades qualification for higher power rating and tighter thermal design constraints.
Availability
SMA5J16AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor modules, and telecom power feeding circuits requiring stable component supply with guaranteed halogen-free and AEC-Q101-compliant sourcing.
Supply support for SMA5J16AHM3_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, and MOSFETs with emphasis on high-reliability, high-power-density solutions.
The SMA5J series is engineered for high-energy transient suppression in space-constrained automotive and industrial applications, combining AEC-Q101 qualification, low-profile packaging, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of SMA5J16AHM3_A/I at its rated peak pulse current?
The SMA5J16AHM3_A/I has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current (IPPM) of 19.2 A under the standardized 10/1000 µs waveform. This value is measured per Vishay's datasheet Document Number 88875 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMA5J16AHM3_A/I maintains this clamping performance across its specified operating temperature range.
Is SMA5J16AHM3_A/I qualified for automotive applications?
Yes, SMA5J16AHM3_A/I is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's official datasheet. The HM3 designation indicates halogen-free, RoHS-compliant construction combined with full AEC-Q101 stress testing-including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This makes SMA5J16AHM3_A/I suitable for use in automotive powertrain and body electronics where reliability under harsh environmental conditions is mandatory.
What does the "HM3" suffix mean in SMA5J16AHM3_A/I?
The "HM3" suffix in SMA5J16AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Specifically, "H" identifies the AEC-Q101 qualified version, "M3" specifies halogen-free molding compound and matte tin-plated leads compliant with JESD201 Class 2 whisker resistance. The trailing "_A/I" indicates packaging in 13-inch tape-and-reel format (I) with revision code A. This suffix distinguishes it from commercial-grade variants like E3 or HE3.
How does SMA5J16AHM3_A/I differ from SMA5J16AHE3_A/I?
SMA5J16AHM3_A/I and SMA5J16AHE3_A/I share identical electrical specifications (VWM = 16 V, VC = 26.0 V, PPPM = 500 W), but differ in material and qualification: HM3 is halogen-free and AEC-Q101 qualified, whereas HE3 is RoHS-compliant but not halogen-free and lacks AEC-Q101 validation. Both use the same SMA (DO-214AC) package and mounting footprint, making them mechanically interchangeable-but only SMA5J16AHM3_A/I satisfies Tier-1 automotive sourcing requirements.
What is the maximum junction temperature rating for SMA5J16AHM3_A/I?
The maximum junction temperature (TJ max.) for SMA5J16AHM3_A/I is +150 °C, as specified in Vishay's datasheet Document Number 88875. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial settings. Derating curves in the datasheet show that peak pulse power must be reduced linearly above 25 °C ambient, with full 500 W capability maintained only at TA ≤ 25 °C unless enhanced thermal management (e.g., larger copper pads) is implemented. The SMA5J16AHM3_A/I's RθJA = 80 °C/W supports this thermal design.
SMA5J16AHM3_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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 19.2A
- 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)
SMA5J16AHM3_A/I FAQ
1.How can I place an order for SMA5J16AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16AHM3_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 SMA5J16AHM3_A/I reliable?
The price and inventory of SMA5J16AHM3_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 SMA5J16AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMA5J16AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16AHM3_A/I?
SMA5J16AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16AHM3_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 SMA5J16AHM3_A/I?
For technical support, including SMA5J16AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16AHM3_A/I requirements.
6.How does Aetrix verify that SMA5J16AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMA5J16AHM3_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 SMA5J16AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMA5J16AHM3_A/I?
All SMA5J16AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16AHM3_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 SMA5J16AHM3_A/I part is unused and in its original packaging.
Return procedure for SMA5J16AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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