Taiwan Semiconductor Corporation TLD6S10AH
- Part No.:
- TLD6S10AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
TLD6S10AH.pdf
- Description:
- TVS DIODE 10VWM 17VC DO218AB
- Quantity:
- Payment:

- Shipping:

Inventory:7,471
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Product details
Overview
TLD6S10AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode designed for automotive load dump surge protection, with a 10 V working stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR) at 5 mA, 4600 W peak pulse power (10/1000 µs), and DO-218AB package rated for TJ = −55 °C to +175 °C.
For engineers reviewing the TLD6S10AH datasheet, TLD6S10AH pinout, TLD6S10AH application, or TLD6S10AH equivalent, key selection criteria include its AEC-Q101 qualification, ISO 7637-2/ISO 16750-2 compliance, 17.0 V clamping voltage at 271 A IPPM, junction-to-case thermal resistance of 0.85 °C/W, and unidirectional polarity for DC rail protection in 12 V automotive systems.
Technical Context
The TLD6S10AH implements a single-die silicon avalanche structure optimized for high-energy transients, delivering 4600 W non-repetitive peak impulse power under 10/1000 µs waveform and 3600 W under 10/10000 µs waveform. Its junction passivation design enables stable operation up to TJ = 175 °C.
It meets IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) and ISO 10605 Level L4 (±30 kV air, ±15 kV contact) ESD immunity, and is qualified per AEC-Q101 with moisture sensitivity level 1 (J-STD-020) and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 11.1 V / 12.3 V at IT = 5 mA - ensures reliable breakdown onset within tight tolerance for predictable clamping |
| VC @ IPPM | 17.0 V at 271 A (10/1000 µs) - low clamping voltage limits downstream IC stress during load dump events |
| PPPM (10/1000 µs) | 4600 W - supports high-energy automotive load dump surges per ISO 7637-2 Pulse 5a |
| RθJC | 0.85 °C/W - enables effective heat transfer to PCB copper or heatsink under sustained surge conditions |
| TJ max | +175 °C - allows deployment in under-hood environments without derating in most automotive applications |
Pinout & Package
Package: DO-218AB - surface-mount, unidirectional, matte tin-plated leads, UL 94V-0 molding compound, 2.682 g weight, polarity marked on cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection to protected circuit ground | Completes conduction path during reverse-biased surge events; must be routed with low-inductance ground plane |
| Cathode | High-side connection to protected power rail (e.g., battery +) | Receives transient energy; connects directly to 12 V supply line upstream of sensitive loads |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive production use, including temperature cycling, humidity bias, and mechanical shock testing |
| ISO 7637-2 & ISO 16750-2 compliance | Guaranteed performance against standardized automotive load dump and supply voltage variation transients |
| Junction passivation technology | Stable VBR drift and leakage behavior over lifetime, even at TJ = 175 °C |
| Uni-directional configuration | Optimized for DC power rail protection only - blocks reverse surges while allowing normal forward conduction in fault-free operation |
Applications
| Automotive Load Dump Protection | 12 V Battery Rail Surge Suppression |
|---|---|
Use Scenario: Protecting engine control units (ECUs) and body control modules (BCMs) during alternator load dump events (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: TVS diode placed between battery+ and ground, clamping transients within 100 ns to limit voltage to ≤17.0 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers by limiting peak rail voltage during 120 V/400 ms surges. | Use Scenario: Safeguarding infotainment head units and ADAS camera modules connected to vehicle battery rails. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main 12 V input, coordinated with upstream fuses and downstream LDOs. Use Value: Enables robust operation across ambient temperatures from −40 °C to +125 °C case temperature, supported by 175 °C junction rating. |
| Start-Stop System Power Management | Commercial Vehicle Lighting Control |
Use Scenario: Securing power electronics in vehicles with frequent engine restart cycles causing repeated voltage spikes. IC Role / Device Role / Timing Role: Fast-response transient suppressor on starter motor relay control lines and sensor supply rails. Use Value: Withstands ≥1000 surge events at 80% of rated PPPM due to low thermal resistance (0.85 °C/W) and high IFSM (600 A). | Use Scenario: Protecting LED driver ICs and MOSFET switches in heavy-duty truck lighting systems exposed to harsh electrical environments. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V auxiliary power inputs, leveraging 10 V VWM compatibility with 12/24 V dual-voltage architectures. Use Value: Maintains <15 µA blocking leakage at VWM and TJ = 175 °C, minimizing standby current drain in always-on lighting controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Lower PPPM (400 W), SMA package, VBR = 11.1–12.2 V, RθJC ≈ 50 °C/W | Not AEC-Q101 qualified; suitable for industrial, not automotive-critical systems | Select when cost sensitivity outweighs automotive qualification and surge energy requirements |
| SMCJ10A | Higher PPPM (1500 W), SMC package, VBR = 11.1–12.2 V, RθJC ≈ 12 °C/W, no AEC-Q101 | Lacks ISO 7637-2 compliance; limited to lower-energy transients and non-automotive use | Choose where board space permits larger SMC footprint and full automotive compliance is not required |
Compared with SMAJ10A and SMCJ10A, the TLD6S10AH delivers 3× higher surge energy handling, certified automotive reliability, and superior thermal performance-making it the only option qualified for front-end 12 V rail protection in AEC-Q101-compliant ECUs.
Availability
TLD6S10AH is available at Aetrix Electronics and suitable for automotive ECU design, start-stop system development, and commercial vehicle lighting control requiring stable component supply and long-term lifecycle assurance.
Supply support for TLD6S10AH 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 Company (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in high-reliability power devices and protection components.
The TLD6S series is engineered specifically for automotive-grade transient suppression, targeting ISO 7637-2 Pulse 5a compliance and under-hood thermal resilience in modern 12 V/48 V hybrid architectures.
FAQ
What is the clamping voltage of the TLD6S10AH under standard surge conditions?
The TLD6S10AH has a maximum clamping voltage (VC) of 17.0 V at 271 A peak pulse current with a 10/1000 µs waveform. This value is measured per IEC 61000-4-5 test conditions and ensures downstream components remain below safe voltage thresholds during load dump events. The TLD6S10AH maintains this clamping performance across its full operating temperature range, supporting robust design in automotive environments.
Is the TLD6S10AH qualified for automotive applications?
Yes, the TLD6S10AH is AEC-Q101 qualified and meets ISO 7637-2 and ISO 16750-2 surge specifications for automotive use. It is rated for junction temperatures up to +175 °C and passes JESD 201 Class 2 whisker testing and J-STD-020 moisture sensitivity Level 1. These qualifications make the TLD6S10AH suitable for front-end protection in engine control units, body control modules, and ADAS systems.
What package type does the TLD6S10AH use, and what are its mounting requirements?
The TLD6S10AH uses the DO-218AB surface-mount package with matte tin-plated leads solderable per J-STD-002. Its recommended pad layout accommodates thermal relief and mechanical stability, and the device requires adequate copper area for heat dissipation given its 0.85 °C/W junction-to-case thermal resistance. Polarity is marked on the cathode end, and orientation must align with unidirectional surge path design.
How does the TLD6S10AH compare to other TVS diodes in terms of surge energy handling?
The TLD6S10AH delivers 4600 W peak pulse power under 10/1000 µs waveform-more than three times that of standard SMAJ or SMCJ series devices. Its single-die DO-218AB construction and optimized junction passivation enable this high energy absorption while maintaining tight VBR tolerance (11.1–12.3 V) and low clamping voltage (17.0 V). This makes the TLD6S10AH uniquely suited for demanding automotive load dump protection.
Does the TLD6S10AH meet international ESD and surge immunity standards?
Yes, the TLD6S10AH meets IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) and ISO 10605 Level L4 (±30 kV air, ±15 kV contact) for electrostatic discharge, and complies with ISO 7637-2 for conducted transients and ISO 16750-2 for electrical load conditions. These certifications are verified per the official Taiwan Semiconductor datasheet Version D2103 and apply specifically to the TLD6S10AH variant.
TLD6S10AH 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):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 271A
- 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
TLD6S10AH FAQ
1.How can I place an order for TLD6S10AH through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD6S10AH 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 TLD6S10AH reliable?
The price and inventory of TLD6S10AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD6S10AH is usually 5 days.
3.What payment methods are accepted for TLD6S10AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD6S10AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD6S10AH?
TLD6S10AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD6S10AH 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 TLD6S10AH?
For technical support, including TLD6S10AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD6S10AH requirements.
6.How does Aetrix verify that TLD6S10AH is sourced from the original manufacturer or authorized distributors?
All TLD6S10AH 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 TLD6S10AH meets industry standards.
7.What is the process for return or replacement of TLD6S10AH?
All TLD6S10AH units undergo pre-shipment inspection (PSI). If there is an issue with TLD6S10AH, 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 TLD6S10AH part is unused and in its original packaging.
Return procedure for TLD6S10AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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