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Taiwan Semiconductor Corporation TLD6S14AH
- Part No.:
- TLD6S14AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
TLD6S14AH.pdf
- Description:
- TVS DIODE 14VWM 23.2VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,144
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Product details
Overview
TLD6S14AH from Taiwan Semiconductor is a unidirectional, AEC-Q101-qualified transient voltage suppressor (TVS) in DO-218AB package, rated for 14.0 V working stand-off voltage, 15.6–17.2 V breakdown voltage at 5.0 mA, and 4600 W peak pulse power (10/1000 µs). It delivers 198 A peak impulse current and clamps to 23.2 V under surge, supporting automotive load dump protection per ISO 7637-2 and ISO 16750-2.
For engineers reviewing the TLD6S14AH datasheet, TLD6S14AH pinout, TLD6S14AH application, or TLD6S14AH equivalent, key selection criteria include its 14.0 V VWM, 23.2 V VC at 198 A, 175 °C junction rating, DO-218AB thermal performance (RθJC = 0.85 °C/W), and compliance with IEC 61000-4-2 Level 4 and ISO 10605 L4 ESD standards.
Technical Context
The TLD6S14AH employs junction passivation optimized design technology to sustain 175 °C continuous operation and withstand repetitive load dump transients per ISO 7637-2. Its unidirectional configuration enables robust reverse-biased surge clamping in DC power lines.
It meets stringent automotive reliability requirements including JESD201 Class 2 whisker resistance, J-STD-020 Moisture Sensitivity Level 1, and UL 94V-0 mold compound flammability - all validated for under-hood environments where thermal cycling and humidity exposure are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14.0 V - Maximum continuous DC operating voltage before conduction begins; defines safe system bus voltage margin. |
| VBR (min/max) | 15.6–17.2 V at IT = 5.0 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 23.2 V at 198 A (10/1000 µs) - Clamping voltage limits downstream IC stress during load dump surges. |
| PPPM | 4600 W (10/1000 µs) - Peak surge energy handling capacity for automotive ISO 7637-2 Pulse 5a/b compliance. |
| TJ max | 175 °C - Enables placement near high-temperature engine control units without derating. |
| RθJC | 0.85 °C/W - Low thermal resistance supports effective heatsinking on PCB copper pour or metal-core substrates. |
Pinout & Package
Package: DO-218AB surface-mount case with matte tin-plated leads, polarity-marked cathode band, UL 94V-0 molding compound, and 2.682 g mass. Designed for high-current PCB trace routing and thermal pad soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; carries full surge current during clamping. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., battery rail); polarity marking ensures correct orientation against reverse transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability across temperature, humidity, and mechanical shock stress profiles. |
| 175 °C junction rating | Enables direct integration into high-temperature zones (e.g., engine bay ECUs) without external thermal derating. |
| ISO 7637-2 / ISO 16750-2 compliance | Guarantees survivability against real-world automotive load dump waveforms up to 100 V, 400 ms duration. |
| IEC 61000-4-2 Level 4 & ISO 10605 L4 | Withstands ±15 kV air discharge and ±8 kV contact discharge ESD events without degradation. |
Applications
| Engine Control Unit Protection | Body Control Module Power Rail |
|---|---|
Use Scenario: Protects 12 V battery-supplied microcontroller power inputs in engine control units exposed to ISO 7637-2 Pulse 5a load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping surges before they reach regulator ICs. Use Value: Limits clamped voltage to 23.2 V, preventing overvoltage damage to 3.3 V/5 V logic supplies downstream of the regulator. | Use Scenario: Shields LIN bus power interface and MCU I/O rails in body control modules subjected to jump-start and alternator ripple. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply line upstream of local LDOs, absorbing repetitive switching transients. Use Value: Maintains 14.0 V VWM margin while delivering 4600 W peak power handling for >100,000-cycle durability. |
| ADAS Camera Power Input | Electric Power Steering ECU |
Use Scenario: Safeguards image sensor and serializer IC power pins in rear-view or surround-view cameras mounted near vehicle exterior. IC Role / Device Role / Timing Role: Primary surge clamp on camera module's main 12 V input, positioned before EMI filter and buck converter. Use Value: Achieves <100 ns response time and 23.2 V clamping to preserve signal integrity of high-speed MIPI CSI-2 links. | Use Scenario: Secures motor driver gate supply and MCU core voltage in electric power steering systems experiencing frequent load dumps. IC Role / Device Role / Timing Role: High-energy TVS on 12 V auxiliary rail feeding isolated gate drivers and safety-critical ASIL-B MCUs. Use Value: Sustains 175 °C operation and 0.85 °C/W thermal resistance to prevent thermal runaway during repeated 100 V/400 ms pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A | Lower PPPM (400 W), SMA package, RθJC ≈ 50 °C/W, VBR = 15.6–17.2 V same range | Not qualified to AEC-Q101; unsuitable for under-hood automotive use | Select only for non-automotive industrial or consumer applications with lower surge energy demands. |
| SMCJ14A | Higher PPPM (3000 W), SMC package, RθJC ≈ 10 °C/W, VBR = 15.6–17.2 V, no AEC-Q101 certification | Lacks ISO 7637-2 validation and 175 °C rating; limited to cabin or chassis-mounted modules | Acceptable for cost-sensitive cabin electronics where 4600 W surge headroom is not required. |
Compared with SMAJ14A and SMCJ14A, the TLD6S14AH provides 1.5× higher surge power handling, 0.85 °C/W thermal resistance enabling compact layout, and full AEC-Q101/ISO 7637-2 qualification - making it the sole choice for high-reliability engine bay and ADAS power protection.
Availability
TLD6S14AH is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera systems, and electric power steering ECUs requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for TLD6S14AH 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, specializing in high-reliability power devices and protection components.
The TLD6SxxAH series was developed specifically for automotive power rail surge protection, targeting ISO 7637-2 load dump compliance and under-hood thermal resilience in next-generation E/E architectures.
FAQ
What is the maximum working stand-off voltage (VWM) of the TLD6S14AH?
The TLD6S14AH has a maximum working stand-off voltage (VWM) of 14.0 V. This value defines the highest continuous DC voltage the device can block without entering avalanche conduction. It ensures compatibility with standard 12 V automotive systems while maintaining sufficient margin above nominal battery voltage to avoid false triggering during normal operation or cold-cranking dips.
Does the TLD6S14AH meet AEC-Q101 qualification requirements?
Yes, the TLD6S14AH is fully AEC-Q101 qualified. This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - all performed per the AEC-Q101 standard. The TLD6S14AH's qualification confirms its suitability for automotive under-hood applications where reliability and long-term stability are mandatory.
What is the clamping voltage (VC) of the TLD6S14AH at its rated peak pulse current?
The TLD6S14AH clamps to 23.2 V at its rated peak impulse current of 198 A using the 10/1000 µs waveform. This clamping voltage is measured under standardized surge conditions and represents the maximum voltage seen by downstream circuitry during worst-case transients. It directly determines the voltage stress imposed on protected ICs and must be verified against their absolute maximum ratings.
Can the TLD6S14AH be used in place of the TLD6S14A?
Yes, the TLD6S14AH is the tape-and-reel packaged version of the TLD6S14A, with identical electrical specifications, thermal performance, and mechanical dimensions. The "H" suffix denotes packaging format (750 pcs/reel, DO-218AB), not functional differentiation. Both share the same VWM (14.0 V), VBR (15.6–17.2 V), and PPPM (4600 W), making them interchangeable in design and procurement.
What is the thermal resistance from junction to case (RθJC) for the TLD6S14AH?
The TLD6S14AH has a typical junction-to-case thermal resistance (RθJC) of 0.85 °C/W when mounted on an ideal heatsink. This low value reflects the DO-218AB package's optimized thermal path and enables efficient heat transfer to PCB copper planes or external heatsinks. It allows sustained power dissipation without exceeding the 175 °C maximum junction temperature under defined mounting conditions.
TLD6S14AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-218AB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 198A
- Power - Peak Pulse:
- 3600W (3.6kW)
- 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-218AB
TLD6S14AH FAQ
1.How can I place an order for TLD6S14AH through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD6S14AH 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 TLD6S14AH reliable?
The price and inventory of TLD6S14AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD6S14AH is usually 5 days.
3.What payment methods are accepted for TLD6S14AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD6S14AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD6S14AH?
TLD6S14AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD6S14AH 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 TLD6S14AH?
For technical support, including TLD6S14AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD6S14AH requirements.
6.How does Aetrix verify that TLD6S14AH is sourced from the original manufacturer or authorized distributors?
All TLD6S14AH 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 TLD6S14AH meets industry standards.
7.What is the process for return or replacement of TLD6S14AH?
All TLD6S14AH units undergo pre-shipment inspection (PSI). If there is an issue with TLD6S14AH, 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 TLD6S14AH part is unused and in its original packaging.
Return procedure for TLD6S14AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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