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Taiwan Semiconductor Corporation SMA6J15AH
- Part No.:
- SMA6J15AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J15AH.pdf
- Description:
- TVS DIODE 15VWM 23.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,048
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Product details
Overview
SMA6J15AH from Taiwan Semiconductor is a 600W surface-mount transient voltage suppressor (TVS) diode with a 15V working stand-off voltage, 16.7–18.5V breakdown voltage at 1mA, and 23.6V clamping voltage at 1A peak pulse current; it delivers AEC-Q101 qualification and ISO 7637-2 compliance for automotive power line protection in DC/DC converters.
For engineers reviewing the SMA6J15AH datasheet, SMA6J15AH pinout, SMA6J15AH application, or SMA6J15AH equivalent, key selection criteria include clamping performance under 10/1000μs surge, junction temperature range (−55°C to +175°C), DO-214AC package compatibility, and AEC-Q101 reliability validation for harsh-environment electronics.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-1ps response time and stable clamping during fast transients. Its 600W peak pulse power rating (10/1000μs waveform) and 25.4A maximum peak impulse current support robust protection against load dump and inductive switching events.
The device operates across −55°C to +175°C junction temperature, features matte tin-plated leads compliant with J-STD-002 solderability, and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements in its DO-214AC (SMA) package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse voltage before leakage exceeds 1 µA; defines safe operating threshold in normal circuit conditions. |
| VBR min/max | 16.7 V / 18.5 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on during overvoltage events. |
| VC@IPPM | 23.6 V - Clamping voltage at 1 A peak pulse current; limits downstream voltage stress during transient suppression. |
| PPPM | 600 W - Peak pulse power handling per 10/1000μs waveform; enables protection against high-energy surges like ISO 7637-2 Pulse 1/2a/2b. |
| TJ range | −55°C to +175°C - Full operational junction temperature span; supports under-hood automotive and industrial power supply environments. |
| Package | DO-214AC (SMA) - Standardized surface-mount outline with cathode band polarity marking and 0.060 g mass; compatible with automated pick-and-place. |
Pinout & Package
DO-214AC (SMA) package: molded plastic case with two axial leads, cathode indicated by a band; terminals are anode and cathode; designed for PCB surface mounting with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to lower-potential side of protected line; enables conduction only when reverse voltage exceeds VBR. |
| Cathode | Current exit point in forward bias; marked with band | Connected to higher-potential side (e.g., battery rail); defines polarity-sensitive placement on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Glass-passivated junction | Provides stable VBR tolerance and low leakage (<1 µA at VWM) over lifetime and temperature extremes. |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery connection/disconnection), and Pulse 3a/3b (switching transients). |
| Moisture sensitivity level 1 | Zero floor life limitation; no baking required prior to reflow, simplifying manufacturing flow. |
Applications
| Automotive On-Board DC/DC Converter | Industrial Switching Mode Power Supply |
|---|---|
Use Scenario: Protection of 12V/24V input stage against load dump and alternator transients in vehicle-mounted buck converters. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input rails to clamp surges before they reach controller ICs and MOSFETs. Use Value: 23.6V clamping at 1A and 600W peak power ensure sustained suppression of ISO 7637-2 Pulse 1 (−150V/0.5Ω) without degradation. | Use Scenario: Input-stage surge protection in DIN-rail mounted 48V-to-12V isolated DC/DC modules used in factory automation. IC Role / Device Role / Timing Role: Standoff protector on primary-side bus, absorbing repetitive switching spikes and ESD events from field wiring. Use Value: −55°C to +175°C operation and JESD201 Class 2 whisker resistance enable long-term reliability in uncooled enclosures. |
| LED Driver Power Input Stage | Automotive Lighting Module |
Use Scenario: Transient suppression on constant-current LED driver inputs exposed to 12V vehicle battery fluctuations and relay bounce. IC Role / Device Role / Timing Role: Primary overvoltage clamp located between fuse and input capacitor, shunting energy before upstream rectifier or controller. Use Value: 1 µA max reverse leakage at 15V VWM preserves efficiency in low-power standby modes while maintaining fast <1ps response. | Use Scenario: Protection of headlamp control units subjected to jump-start surges and electromagnetic coupling from adjacent motors. IC Role / Device Role / Timing Role: Bidirectionally referenced TVS (used unidirectionally with cathode to battery) guarding MCU power pins and CAN transceiver supplies. Use Value: AEC-Q101 qualification and moisture level 1 allow direct integration into sealed lighting housings without conformal coating dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J15A | Same electrical specs but lacks AEC-Q101 qualification and ISO 7637-2 documentation; RoHS-compliant only. | Not validated for automotive use; suitable for commercial-grade SMPS where qualification is not mandated. | Select SMA6J15A only if AEC-Q101 and automotive transient standards are not required. |
| SMB6J15AH | Identical VWM/VBR/VC specs, but in DO-214AA (SMB) package - 2.5mm wider body, higher thermal mass, 1.0mm greater lead spacing. | Requires PCB pad redesign; offers marginally better thermal dissipation in high-duty-cycle surge environments. | Choose SMB6J15AH when board layout allows larger footprint and enhanced steady-state power handling (PD = 6.5W vs. 4W) is needed. |
Compared with SMA6J15A and SMB6J15AH, the SMA6J15AH uniquely combines AEC-Q101 qualification, ISO 7637-2 compliance, and DO-214AC packaging-making it the only option qualified for automotive front-end protection without layout change or reliability compromise.
Availability
SMA6J15AH is available at Aetrix Electronics and suitable for automotive lighting modules, on-board DC/DC converters, and industrial switching mode power supplies requiring stable component supply with full AEC-Q101 traceability and tape-and-reel delivery.
Supply support for SMA6J15AH 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 SMA6JxAH series was developed specifically for AEC-Q101-compliant transient suppression in automotive power distribution networks, emphasizing robustness against ISO 7637-2 pulses and long-term reliability in high-temperature under-hood environments.
FAQ
What is the clamping voltage of SMA6J15AH at its rated peak pulse current?
The SMA6J15AH has a maximum clamping voltage (VC) of 23.6 V at 1.0 A peak pulse current (IPPM), measured using the standardized 10/1000 μs double-exponential waveform. This value ensures downstream components experience limited overvoltage during surge events, and is confirmed in the Electrical Specifications table of the official TSC datasheet revision A2102.
Is SMA6J15AH qualified for automotive applications?
Yes, SMA6J15AH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient immunity standards. Its qualification covers temperature cycling, humidity bias, and mechanical shock-making SMA6J15AH suitable for engine control units, body electronics, and lighting systems in passenger and commercial vehicles.
What package type does SMA6J15AH use, and what are its key mechanical attributes?
SMA6J15AH uses the DO-214AC (SMA) surface-mount package: 4.5 mm length × 2.7 mm width × 2.2 mm height, with matte tin-plated leads, cathode band polarity marking, and UL 94V-0 rated molding compound. It weighs approximately 0.060 g and conforms to J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Does SMA6J15AH have a specified junction temperature limit?
Yes, SMA6J15AH has a specified operating junction temperature range of −55°C to +175°C, as stated in the Absolute Maximum Ratings table. This wide range supports deployment in under-hood automotive locations and high-ambient industrial environments where thermal management is constrained.
How does SMA6J15AH differ from SMA6J15A?
SMA6J15AH differs from SMA6J15A primarily in qualification and documentation: SMA6J15AH carries full AEC-Q101 certification and ISO 7637-2 test reports, while SMA6J15A lacks these automotive validations. Both share identical electrical parameters (VWM, VBR, VC, PPPM), but only SMA6J15AH is approved for safety-critical automotive power rail protection.
SMA6J15AH 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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 23.6V
- Current - Peak Pulse (10/1000µs):
- 25.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA6J15AH FAQ
1.How can I place an order for SMA6J15AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J15AH 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 SMA6J15AH reliable?
The price and inventory of SMA6J15AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA6J15AH is usually 5 days.
3.What payment methods are accepted for SMA6J15AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J15AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J15AH?
SMA6J15AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J15AH 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 SMA6J15AH?
For technical support, including SMA6J15AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J15AH requirements.
6.How does Aetrix verify that SMA6J15AH is sourced from the original manufacturer or authorized distributors?
All SMA6J15AH 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 SMA6J15AH meets industry standards.
7.What is the process for return or replacement of SMA6J15AH?
All SMA6J15AH units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J15AH, 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 SMA6J15AH part is unused and in its original packaging.
Return procedure for SMA6J15AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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