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Taiwan Semiconductor Corporation TLD8S10CAH
- Part No.:
- TLD8S10CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
TLD8S10CAH.pdf
- Description:
- 6600W, 11.7V, 5%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,886
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Product details
Overview
TLD8S10CAH from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-218AB package, rated for 10 V working stand-off voltage, 11.1–12.3 V breakdown voltage at 5 mA, 388 A peak impulse current (10/1000 µs), 17.0 V clamping voltage at IPPM, and 6600 W peak pulse power. It delivers automotive-grade surge protection against load dump and ISO 7637-2 transients in engine control units.
For engineers reviewing the TLD8S10CAH datasheet, TLD8S10CAH pinout, TLD8S10CAH application, or TLD8S10CAH equivalent, key selection criteria include bidirectional polarity, 175 °C junction capability, AEC-Q101 qualification, ISO 16750-2 compliance, and DO-218AB thermal performance with RθJC = 0.8 °C/W.
Technical Context
The TLD8S10CAH uses junction passivation optimized design to sustain 175 °C continuous operation and meet AEC-Q101 stress requirements. Its bidirectional architecture enables symmetric clamping during both positive and negative transients without external polarity management.
It meets ISO 7637-2 Pulse 5a/b (load dump) and ISO 16750-2 electrical disturbance tests under defined conditions, and complies with IEC 61000-4-2 Level 4 (8 kV contact / 15 kV air) and ISO 10605 L4 (30 kV) ESD immunity standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse stand-off voltage before leakage exceeds 15 µA at 25 °C |
| VBR (min/max) | 11.1 / 12.3 V at IT = 5 mA - Ensures reliable triggering above system nominal voltage with margin |
| VC @ IPPM | 17.0 V at 388 A (10/1000 µs) - Limits downstream voltage stress during worst-case surge events |
| PPPM | 6600 W (10/1000 µs) - Supports high-energy automotive load dump suppression without failure |
| RθJC | 0.8 °C/W - Enables effective heat transfer to heatsink under sustained 8 W steady-state dissipation |
| TJ max | 175 °C - Allows operation in under-hood environments including near exhaust manifolds or turbochargers |
| αT | 0.069 %/°C - Predictable VBR drift over temperature ensures stable clamping across full automotive range |
Pinout & Package
DO-218AB surface-mount package with cathode band marking; two-terminal bidirectional configuration; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No polarity dependency - connects across protected line and ground without orientation constraints |
| Case (exposed metal slug) | Thermal conduction interface | Primary heat path to PCB copper pour or external heatsink; requires thermal pad connection per JEDEC DO-218AB layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use via stress testing including HTGB, HTRB, TCT, and UHAST - supports ASIL-B system integration |
| Bidirectional operation | Eliminates need for dual unidirectional devices or polarity-aware board layout in differential or AC-coupled lines |
| 175 °C junction rating | Enables placement in high-temperature zones (e.g., powertrain ECUs) without derating or forced cooling |
| ISO 7637-2 & ISO 16750-2 compliance | Guarantees survivability against standardized automotive electrical transients including 35 V/100 ms load dump pulses |
| UL 94V-0 molding compound | Prevents flame propagation in fault conditions - required for under-hood and battery-connected modules |
Applications
| Engine Control Unit (ECU) Power Input Protection | Body Control Module (BCM) LIN Bus Line Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of gasoline/diesel engine ECU from alternator load dump surges up to 35 V/100 ms. IC Role / Device Role / Timing Role: Bidirectional TVS clamps both positive and negative transients on main power input before DC-DC converters and microcontrollers. Use Value: Withstands 6600 W peak power and maintains VC ≤ 17.0 V, preventing latch-up or burnout of downstream 3.3 V/5 V logic. | Use Scenario: Shields LIN transceiver PHY layer from coupled noise and battery transients in door module wiring harnesses. IC Role / Device Role / Timing Role: Placed between LIN bus line and ground to clamp fast ESD events (IEC 61000-4-2 Level 4) and slow battery spikes. Use Value: 0.069 %/°C tempco ensures stable clamping threshold across -40 to +150 °C ambient, critical for LIN timing integrity. |
| Electric Power Steering (EPS) Motor Driver Protection | Advanced Driver Assistance Systems (ADAS) Camera Power Rail |
Use Scenario: Guards H-bridge gate driver supply against inductive kickback and battery reversal during EPS motor stall or direction change. IC Role / Device Role / Timing Role: Bidirectional clamping on low-side switch return path absorbs reverse energy without requiring freewheeling diodes. Use Value: 388 A peak impulse current capacity handles worst-case 10/1000 µs surges from 24 V systems while maintaining RθJC = 0.8 °C/W thermal path. | Use Scenario: Secures 5 V or 12 V camera module power input against ignition transients and hot-swap events in rear-view or surround-view systems. IC Role / Device Role / Timing Role: Front-end TVS on camera power line prevents pixel corruption, reset, or sensor damage during vehicle start-stop cycles. Use Value: 175 °C junction rating allows direct mounting near camera housing without thermal isolation, reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10CA | Lower PPPM = 400 W (10/1000 µs); SMA package; RθJC ≈ 45 °C/W; VC = 17.0 V same | Not suitable for load dump; limited to ESD and low-energy transients in infotainment or body electronics | Select TLD8S10CAH when >1 kW surge handling or under-hood placement is required. |
| TPSMD10CA | Same DO-218AB package; PPPM = 6600 W; but VBR min = 11.4 V, VC = 17.5 V; AEC-Q101 qualified | Compatible in footprint and thermal design; slightly higher clamping increases downstream voltage stress | Acceptable alternative if 0.5 V higher VC is tolerable in system-level margin analysis. |
Compared with SMAJ10CA and TPSMD10CA, the TLD8S10CAH provides identical clamping voltage but superior thermal resistance (0.8 vs. ~45 or ~1.2 °C/W), enabling reliable operation at 175 °C junction temperature where alternatives require derating or heatsinking.
Availability
TLD8S10CAH is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, electric power steering systems, and ADAS camera power rails requiring stable component supply with AEC-Q101 qualification and long-term lifecycle support.
Supply support for TLD8S10CAH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, and automotive-qualified components since 1979.
The TLD8S series was designed specifically for high-reliability automotive transient suppression, targeting under-hood applications demanding 175 °C operation, ISO 7637-2 compliance, and robust thermal performance in DO-218AB packaging.
FAQ
What is the polarity configuration of the TLD8S10CAH?
The TLD8S10CAH is a bidirectional TVS diode, meaning it conducts equally in both forward and reverse directions when voltage exceeds its breakdown threshold. Its symmetrical structure eliminates polarity marking dependency - the cathode band serves only as a mechanical reference, not a functional polarity indicator. This configuration is confirmed in the "Bi-directional" section of the Electrical Specifications table and supports placement across any two-node interface without orientation concerns. The TLD8S10CAH functions identically regardless of terminal assignment in circuit layout.
Does the TLD8S10CAH meet AEC-Q101 requirements for automotive use?
Yes, the TLD8S10CAH is explicitly AEC-Q101 qualified, as stated in the FEATURES section of the datasheet. This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling (TCT), and unbiased highly accelerated stress test (UHAST). The device is rated for TJ = −55 °C to +175 °C and meets moisture sensitivity level 1 per J-STD-020 - all mandatory for automotive powertrain and chassis applications. The TLD8S10CAH's qualification status is documented in Version E2310 of the official Taiwan Semiconductor specification.
What is the maximum clamping voltage of the TLD8S10CAH during a 10/1000 µs surge?
The maximum clamping voltage (VC) of the TLD8S10CAH is 17.0 V when subjected to its rated peak impulse current of 388 A with a 10/1000 µs waveform. This value is measured at the device terminals under specified test conditions and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events. It is directly listed in the Electrical Specifications table for bidirectional parts and is critical for ensuring protected ICs remain within their absolute maximum ratings. The TLD8S10CAH maintains this clamping performance across its full operating temperature range due to its 0.069 %/°C VBR temperature coefficient.
Can the TLD8S10CAH be used for ISO 7637-2 Load Dump protection?
Yes, the TLD8S10CAH is designed to meet ISO 7637-2 Pulse 5a and 5b load dump requirements under defined test conditions, as confirmed in the FEATURES section. Its 6600 W peak pulse power rating (10/1000 µs) and 388 A peak impulse current capability enable it to absorb the energy of standardized 35 V/100 ms load dump transients commonly generated by vehicle alternators. The device's 175 °C junction rating and low RθJC of 0.8 °C/W ensure thermal stability during repeated load dump events. System-level validation per ISO 7637-2 must still be performed, but the TLD8S10CAH satisfies the core device-level requirements.
What is the thermal resistance from junction to case (RθJC) for the TLD8S10CAH?
The junction-to-case thermal resistance (RθJC) of the TLD8S10CAH is 0.8 °C/W, as specified in the THERMAL PERFORMANCE section. This value assumes ideal heatsink contact and reflects the device's ability to conduct heat from the silicon die to the exposed metal slug of the DO-218AB package. It enables efficient thermal management in high-power surge scenarios - for example, dissipating 8 W steady-state power results in only a 6.4 °C temperature rise from case to junction. This low RθJC is a key differentiator versus smaller packages like SMA or SMC and is essential for under-hood reliability. The TLD8S10CAH's thermal performance is validated per JEDEC standards.
TLD8S10CAH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 388A
- Power - Peak Pulse:
- 6600W (6.6kW)
- 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
TLD8S10CAH FAQ
1.How can I place an order for TLD8S10CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD8S10CAH 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 TLD8S10CAH reliable?
The price and inventory of TLD8S10CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD8S10CAH is usually 5 days.
3.What payment methods are accepted for TLD8S10CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD8S10CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD8S10CAH?
TLD8S10CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD8S10CAH 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 TLD8S10CAH?
For technical support, including TLD8S10CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD8S10CAH requirements.
6.How does Aetrix verify that TLD8S10CAH is sourced from the original manufacturer or authorized distributors?
All TLD8S10CAH 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 TLD8S10CAH meets industry standards.
7.What is the process for return or replacement of TLD8S10CAH?
All TLD8S10CAH units undergo pre-shipment inspection (PSI). If there is an issue with TLD8S10CAH, 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 TLD8S10CAH part is unused and in its original packaging.
Return procedure for TLD8S10CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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