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Vishay General Semiconductor - Diodes Division SMA5J16AHE3_A/H
- Part No.:
- SMA5J16AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16AHE3_A/H.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,836
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Product details
Overview
SMA5J16AHE3_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 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage (VC) at 19.2 A peak pulse current (IPPM), 500 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive use - deployed to protect MOSFETs and sensor interfaces against inductive switching transients.
For engineers reviewing the SMA5J16AHE3_A/H datasheet, SMA5J16AHE3_A/H pinout, SMA5J16AHE3_A/H application, or SMA5J16AHE3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs surges, junction temperature derating above 25 °C, unidirectional polarity marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered by reverse-biased avalanche breakdown. Its glass-passivated junction ensures stable VBR (17.8–19.7 V) at 1 mA test current and low incremental surge resistance for consistent clamping across repetitive transients.
Designed for surface-mount integration, it leverages the SMA (DO-214AC) package's thermal resistance (RθJA = 80 °C/W, RθJL = 25 °C/W) and meets J-STD-020 MSL Level 1 (260 °C peak reflow), supporting reliable operation from –55 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe working range for protected circuit. |
| VBR min/max | 17.8 V / 19.7 V - Breakdown voltage range at 1 mA; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 26.0 V - Clamping voltage at 19.2 A peak pulse current (10/1000 μs); limits downstream voltage stress during surge. |
| PPPM | 500 W - Peak pulse power handling capability; determines survivability of standardized lightning/surge waveforms. |
| IFSM | 40 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports inrush or fault-current tolerance in DC power paths. |
| TJ max | +150 °C - Maximum junction temperature; sets thermal design margin for PCB pad layout and ambient conditions. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional polarity marked by cathode band. Matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return in unidirectional clamp configuration. |
| Cathode | Reverse-biased avalanche node | Connected to protected line; band-marked end carries full clamping voltage during transient. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables compact PCB layouts and compatibility with standard SMT pick-and-place equipment. |
| Glass-passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and life cycles. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body electronics, and ADAS sensor protection applications. |
| MSL Level 1 rating | Permits single-reflow assembly without moisture sensitivity concerns (peak 260 °C). |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 16 V. Use Value: Limits voltage excursion to ≤26.0 V during 19.2 A transients, preventing damage to downstream LDOs and microcontrollers. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Reverse-biased TVS on signal line to absorb ESD and inductive kickback from solenoid drivers. Use Value: Sub-1 ns response time and 26.0 V clamping prevent latch-up or parametric shift in precision ADC front-ends. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Secondary-side surge suppression in USB-C PD adapters exposed to mains-coupled noise. IC Role / Device Role / Timing Role: Standoff-rated TVS on 5–20 V output rails to meet IEC 61000-4-5 Level 3 requirements. Use Value: 500 W peak power rating sustains multiple 10/1000 μs surges without degradation, ensuring field reliability. | Use Scenario: Overvoltage hardening of -48 V DC distribution in base station power modules. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground to suppress lightning-induced common-mode spikes. Use Value: 1 μA leakage at 16 V minimizes standby power loss while maintaining fast avalanche response for telecom-grade immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J16A-E3/61 | Same electrical specs; commercial-grade (non-AEC-Q101), RoHS-compliant, packaged in 7" tape. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and no extended temperature validation is needed. |
| SMA5J16AHM3_A/H | Halogen-free variant; identical VWM, VC, PPPM, and AEC-Q101 qualification. | Required for RoHS+halogen-free compliance programs (e.g., EU automotive Tier 1 supply chains). | Choose when material compliance mandates halogen-free molding compound and lead finish. |
Compared with SMA5J16AHE3_A/H, the E3/61 variant trades AEC-Q101 validation for lower cost in non-automotive settings, while the HM3_A/H version adds halogen-free construction without altering clamping behavior - enabling compliance-driven substitutions without circuit redesign.
Availability
SMA5J16AHE3_A/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC power feed applications requiring stable component supply and AEC-Q101 traceability.
Supply support for SMA5J16AHE3_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, and protection devices with emphasis on reliability and application-specific optimization.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability environments - targeting automotive, industrial, and telecom infrastructure where robustness against ISO 7637-2 and IEC 61000-4-5 threats is mandatory.
FAQ
What is the clamping voltage of the SMA5J16AHE3_A/H under a 10/1000 μs surge?
The SMA5J16AHE3_A/H clamps to a maximum of 26.0 V when subjected to its rated 19.2 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream component voltage stress analysis in designs using the SMA5J16AHE3_A/H.
Is the SMA5J16AHE3_A/H suitable for automotive applications?
Yes, the SMA5J16AHE3_A/H is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It supports operation from –55 °C to +150 °C and is validated for reliability in engine control units, body electronics, and ADAS sensor modules where transient immunity per ISO 7637-2 is required - confirming its suitability as a production-grade automotive component.
What does the "_A/H" suffix mean in SMA5J16AHE3_A/H?
The "_A/H" suffix in SMA5J16AHE3_A/H indicates revision code "A" and packaging in 7-inch diameter plastic tape and reel (package code H). Per Vishay's ordering nomenclature, this denotes a specific manufacturing revision and delivery format - not a functional variant - and does not affect the electrical or thermal specifications of the SMA5J16AHE3_A/H.
How does the SMA5J16AHE3_A/H differ from bidirectional TVS diodes like SMA5J16CA?
The SMA5J16AHE3_A/H is unidirectional and features polarity marking (cathode band), enabling asymmetric clamping only in reverse bias. In contrast, SMA5J16CA is bidirectional with symmetrical clamping in both directions and no polarity marking. The SMA5J16AHE3_A/H is intended for DC power line protection, whereas SMA5J16CA suits AC or dual-rail signal lines - a fundamental functional distinction affecting circuit topology.
What is the thermal resistance of the SMA5J16AHE3_A/H, and how does it impact layout?
The SMA5J16AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W and junction-to-lead (RθJL) of 25 °C/W. To maintain safe junction temperatures under 500 W surge loads, PCB layout must use minimum 5.0 mm × 5.0 mm copper pads per terminal - as specified in the datasheet - otherwise thermal derating will reduce effective surge capability below rated values for the SMA5J16AHE3_A/H.
SMA5J16AHE3_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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J16AHE3_A/H FAQ
1.How can I place an order for SMA5J16AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16AHE3_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 SMA5J16AHE3_A/H reliable?
The price and inventory of SMA5J16AHE3_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 SMA5J16AHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMA5J16AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16AHE3_A/H?
SMA5J16AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16AHE3_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 SMA5J16AHE3_A/H?
For technical support, including SMA5J16AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16AHE3_A/H requirements.
6.How does Aetrix verify that SMA5J16AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMA5J16AHE3_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 SMA5J16AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMA5J16AHE3_A/H?
All SMA5J16AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16AHE3_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 SMA5J16AHE3_A/H part is unused and in its original packaging.
Return procedure for SMA5J16AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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