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Vishay General Semiconductor - Diodes Division SMA5J16A-E3/5A
- Part No.:
- SMA5J16A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16A-E3/5A.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,725
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Product details
Overview
SMA5J16A-E3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR at 1 mA), 26.0 V clamping voltage (VC) at 19.2 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMA5J16A-E3/5A datasheet, SMA5J16A-E3/5A pinout, SMA5J16A-E3/5A application, or SMA5J16A-E3/5A equivalent, key selection criteria include verified unidirectional polarity, RoHS-compliant matte tin-plated leads, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification eligibility via HE3/HM3 suffix variants.
Technical Context
This TVS diode operates as a clamping-type surge protector, leveraging an avalanche breakdown mechanism to limit transient voltages before they damage downstream ICs or MOSFETs. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at 16 V) and fast response time (<1.0 ps), critical for suppressing ESD and inductive switching spikes.
The device is rated for 150 °C maximum junction temperature and exhibits low incremental surge resistance, enabling reliable energy absorption under repetitive or single-event transients. Thermal resistance is 80 °C/W (junction-to-ambient) on standard 5.0 mm × 5.0 mm copper pads, supporting thermal design validation in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 26.0 V at 19.2 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines IC survivability. |
| PPPM (Peak Pulse Power) | 500 W - Total transient energy absorption capability per pulse; supports IEC 61000-4-5 Level 3/4 compliance. |
| IPPM (Peak Pulse Current) | 19.2 A - Maximum non-repetitive surge current handled without degradation; validated per Fig. 1 & 3. |
| TJmax | 150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance on standard pad layout; informs heatsinking requirements. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; completes clamping loop during overvoltage events. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., 12 V rail); blocks normal operation but avalanches during surges. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA (DO-214AC) package | Enables automated SMT placement and fits high-density layouts where height ≤ 2.29 mm is required. |
| Glass-passivated junction | Ensures stable VBR tolerance and <1.0 µA leakage at VWM, critical for battery-powered sensor nodes. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
| 500 W peak pulse power (10/1000 µs) | Provides margin against ISO 7637-2 Pulse 1/2/5a and IEC 61000-4-5 Combination Wave surges in 12 V systems. |
| AEC-Q101 qualification path | HE3/HM3 variants available for automotive applications requiring stress-tested reliability per JESD22-A108. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp transients before LDO or MCU power pins. Use Value: Limits voltage to ≤26.0 V during 19.2 A surges, preventing latch-up or gate oxide rupture in downstream PMICs. |
Use Scenario: Analog output lines (e.g., 4–20 mA current loop) in factory automation sensors subject to ESD and cable coupling. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; SMA5J16A-E3/5A used in unidirectional rail-to-ground configuration on supply side of signal conditioner. Use Value: Clamps induced transients within 1 ps, preserving ±0.1% analog accuracy and avoiding ADC saturation or reset. |
| Consumer Power Adapter Output | Telecom DC-DC Converter Input |
|
Use Scenario: Secondary-side 12 V output of wall adapters powering USB-C PD accessories, vulnerable to hot-plug surges. IC Role / Device Role / Timing Role: TVS mounted directly at connector, shunting surge energy to local ground plane before entering load switch or USB controller. Use Value: Withstands 500 W pulses without derating up to 125 °C ambient, maintaining protection integrity across full commercial temperature range. |
Use Scenario: 48 V input stage of telecom DC-DC modules subjected to lightning-induced surges on PoE or base station backplanes. IC Role / Device Role / Timing Role: First-line transient clamp on primary input, coordinated with upstream MOVs and downstream ceramic filters. Use Value: Low Rsurge and 26.0 V clamping enable coordination with 36 V-rated input capacitors and 40 V-rated FETs. |
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-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and thermal performance. | No functional difference; selected when halogen-free material compliance is mandated by OEM environmental policy. | Direct drop-in replacement for SMA5J16A-E3/5A where halogen-free bill-of-materials is required. |
| SMA5J16CA-E3/5A | Bidirectional version with same VWM (16 V), VBR (17.8–19.7 V), and VC (26.0 V), but symmetrical clamping in both polarities. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where reverse polarity transients occur. | Select SMA5J16CA-E3/5A only when bidirectional protection is needed; not interchangeable in unidirectional rail designs. |
Compared with SMA5J16A-E3/5A, the M3/5A variant offers identical protection performance with halogen-free construction, while the 16CA-E3/5A provides symmetrical clamping essential for differential or AC-signaling paths - neither replaces the original in unidirectional DC applications without circuit review.
Availability
SMA5J16A-E3/5A is available at Aetrix Electronics and suitable for automotive power inputs, industrial sensor interfaces, and consumer adapter outputs requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for SMA5J16A-E3/5A 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive environments.
The SMA5J series was engineered specifically for high-power-density transient suppression in space-constrained DC systems, balancing 500 W surge capacity with SMA package manufacturability and thermal efficiency.
FAQ
What is the clamping voltage of the SMA5J16A-E3/5A under standard test conditions?
The SMA5J16A-E3/5A has a maximum clamping voltage (VC) of 26.0 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 19.2 A. This value is measured per JEDEC standards and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 88875. The SMA5J16A-E3/5A maintains this clamping performance across its specified operating temperature range.
Is the SMA5J16A-E3/5A suitable for automotive applications?
The SMA5J16A-E3/5A itself is commercial-grade, but Vishay offers AEC-Q101 qualified versions under HE3 and HM3 suffixes (e.g., SMA5J16AHE3_A). The SMA5J16A-E3/5A shares identical electrical and thermal characteristics with those qualified variants, making it suitable for prototyping and non-safety-critical automotive subsystems where formal qualification is not mandated.
What does the "E3/5A" suffix indicate in SMA5J16A-E3/5A?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "5A" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 7500 units. This ordering code aligns with Vishay's standardized nomenclature in Document Number 88875 and ensures correct logistics handling and SMT machine setup.
How does the SMA5J16A-E3/5A differ from the SMA5J16CA-E3/5A?
The SMA5J16A-E3/5A is unidirectional, with cathode marked and designed for DC rail-to-ground protection. The SMA5J16CA-E3/5A is bidirectional, lacking polarity marking and providing symmetrical clamping for AC or floating lines. Their VWM, VBR, and VC values match, but the SMA5J16A-E3/5A cannot replace the CA version in bidirectional applications without circuit redesign.
What is the maximum junction temperature rating for the SMA5J16A-E3/5A?
The SMA5J16A-E3/5A has a maximum junction temperature (TJmax) of +150 °C, as specified in the Thermal Characteristics table of Vishay's datasheet. This rating allows reliable operation in under-hood automotive environments and industrial enclosures where ambient temperatures approach 125 °C, provided PCB thermal design meets the 5.0 mm × 5.0 mm copper pad requirement.
SMA5J16A-E3/5A 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J16A-E3/5A FAQ
1.How can I place an order for SMA5J16A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16A-E3/5A 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 SMA5J16A-E3/5A reliable?
The price and inventory of SMA5J16A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J16A-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J16A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16A-E3/5A?
SMA5J16A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16A-E3/5A 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 SMA5J16A-E3/5A?
For technical support, including SMA5J16A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16A-E3/5A requirements.
6.How does Aetrix verify that SMA5J16A-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J16A-E3/5A 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 SMA5J16A-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J16A-E3/5A?
All SMA5J16A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16A-E3/5A, 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 SMA5J16A-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J16A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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