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Taiwan Semiconductor Corporation SMA6J16A
- Part No.:
- SMA6J16A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J16A.pdf
- Description:
- TVS DIODE 16VWM 25.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,769
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Product details
Overview
SMA6J16A from Taiwan Semiconductor is a 600W surface-mount transient voltage suppressor (TVS) diode with a 17.8–19.7 V breakdown voltage, 16 V working standoff voltage, and 25.2 V maximum clamping voltage at 23.8 A peak pulse current. It features glass passivated junction, DO-214AC (SMA) package, and is designed for surge protection in DC/DC converters and automotive power systems.
For engineers reviewing the SMA6J16A datasheet, SMA6J16A pinout, SMA6J16A application, or SMA6J16A equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, moisture sensitivity level 1 compliance, and 10/1000 µs waveform capability in compact SMA packaging.
Technical Context
This unidirectional TVS diode operates as a reverse-biased avalanche clamp, triggered when reverse voltage exceeds its specified VBR range (17.8–19.7 V). Its fast response time (<1.0 ps) ensures protection against ESD and fast transients in low-voltage power rails.
The device sustains 600 W peak pulse power per 10/1000 µs waveform, with thermal limits defined by TJ = –55°C to +175°C and steady-state power dissipation of 4 W. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VBR @ IT=1 mA | 17.8–19.7 V - Verified avalanche breakdown threshold ensuring predictable turn-on during surges |
| VC @ IPPM=23.8 A | 25.2 V - Clamped voltage limiting downstream circuit stress during 10/1000 µs transients |
| PPPM | 600 W - Peak pulse power handling capacity per standardized 10/1000 µs waveform |
| IFSM | 50 A - Surge current tolerance for 8.3 ms half-sine wave, supporting inrush and fault events |
| TJ Range | –55°C to +175°C - Extended junction temperature operation suitable for under-hood automotive environments |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode-indicated band; two-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side (e.g., ground or return rail) in reverse-biased protection setup |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., 12 V rail); conducts during overvoltage to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR and long-term reliability under thermal cycling and humidity exposure |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive load-dump and supply-transient immunity without external filtering |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling prior to assembly |
| UL 94V-0 molding compound | Provides flame-retardant encapsulation required for industrial and automotive safety certifications |
Applications
| Automotive Power Distribution | Industrial DC/DC Converters |
|---|---|
Use Scenario: Protection of 12 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input rail to clamp surges above 25.2 V. Use Value: Limits voltage excursion to 25.2 V at 23.8 A, preventing damage to downstream regulators and microcontrollers. | Use Scenario: Input-side surge suppression in isolated 24 V to 5 V DC/DC modules used in PLCs. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 10/1000 µs pulses induced by switching noise or coupling. Use Value: Maintains 16 V working voltage margin while clamping to 25.2 V, preserving converter efficiency and stability. |
| LED Driver Power Inputs | USB-C Power Delivery Adapters |
Use Scenario: Transient protection on constant-current LED driver inputs exposed to field wiring surges. IC Role / Device Role / Timing Role: Fast-response (<1 ps) clamp that activates before MOSFET gate oxide breakdown. Use Value: Prevents catastrophic failure of high-side switch FETs by limiting VDS stress during line-induced spikes. | Use Scenario: Secondary-side overvoltage protection in 20 V USB-C PD adapter outputs. IC Role / Device Role / Timing Role: Reverse-biased TVS referenced to common ground, guarding synchronous rectifier control ICs. Use Value: Clamps output overshoot to ≤25.2 V during hot-plug or cable disconnect events, meeting USB PD v2.0 safety limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J16CA | Bidirectional version; symmetric ±17.8–19.7 V breakdown; same PPPM, VC, and package | Required where AC-coupled or bidirectional signal lines need protection (e.g., RS-485, CAN bus) | Select SMA6J16CA only if polarity-agnostic clamping is needed; SMA6J16A is optimal for DC rail protection. |
| SMC6J16A | Larger DO-214AB (SMC) package; identical electrical specs but higher thermal mass and 1.5× footprint | Suitable for higher ambient temperature or higher average power dissipation scenarios (>4 W steady-state) | Choose SMA6J16A for space-constrained layouts; SMC6J16A where board area allows and thermal derating is critical. |
Compared with SMA6J16CA and SMC6J16A, the SMA6J16A offers optimal balance of compact DO-214AC footprint, unidirectional DC rail compatibility, and verified ISO 7637-2 immunity-making it preferred for automotive and industrial 12–24 V power entry points.
Availability
SMA6J16A is available at Aetrix Electronics and suitable for automotive electronics, industrial DC/DC converters, and LED lighting systems requiring stable component supply with full traceability and lifecycle management.
Supply support for SMA6J16A 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The SMA6JxxA series belongs to TSC's transient voltage suppressor product line, engineered specifically for robust, standards-compliant surge protection in harsh-environment power systems with stringent space and reliability constraints.
FAQ
What is the maximum clamping voltage of the SMA6J16A under rated surge conditions?
The SMA6J16A exhibits a maximum clamping voltage (VC) of 25.2 V when subjected to its rated peak pulse current of 23.8 A under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and guarantees consistent overvoltage limiting behavior across production lots of the SMA6J16A.
Does the SMA6J16A meet automotive transient immunity standards?
Yes, the SMA6J16A is explicitly validated to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements. Its 600 W peak pulse rating and sub-1 ps response time enable direct integration into automotive power networks without supplemental filtering, making it suitable for ECU, body control, and lighting modules using the SMA6J16A.
What is the moisture sensitivity level (MSL) rating for the SMA6J16A?
The SMA6J16A carries an MSL rating of Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions (≤30°C / 60% RH) and processed using standard reflow profiles without pre-baking. This simplifies manufacturing logistics and reduces risk of popcorning during SMT assembly of the SMA6J16A.
Can the SMA6J16A be used in bidirectional signal line protection?
No-the SMA6J16A is a unidirectional TVS diode intended for DC rail protection. For bidirectional applications such as RS-485 or CAN bus, the SMA6J16CA (bidirectional variant) must be selected instead. Using the SMA6J16A on AC-coupled lines risks forward conduction and improper clamping behavior.
What is the steady-state power dissipation limit for the SMA6J16A?
The SMA6J16A has a steady-state power dissipation (PD) rating of 4 W at TA = 25°C. This defines its continuous thermal limit under DC bias and must be derated linearly above 25°C ambient per the published pulse derating curve. Exceeding this limit risks thermal runaway and permanent degradation of the SMA6J16A.
SMA6J16A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- SMA6J
- 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:
- 25.2V
- Current - Peak Pulse (10/1000µs):
- 23.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J16A FAQ
1.How can I place an order for SMA6J16A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J16A 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 SMA6J16A reliable?
The price and inventory of SMA6J16A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J16A is usually 5 days.
3.What payment methods are accepted for SMA6J16A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J16A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J16A?
SMA6J16A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J16A 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 SMA6J16A?
For technical support, including SMA6J16A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J16A requirements.
6.How does Aetrix verify that SMA6J16A is sourced from the original manufacturer or authorized distributors?
All SMA6J16A 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 SMA6J16A meets industry standards.
7.What is the process for return or replacement of SMA6J16A?
All SMA6J16A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J16A, 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 SMA6J16A part is unused and in its original packaging.
Return procedure for SMA6J16A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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