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Taiwan Semiconductor Corporation TLD8S13CAH
- Part No.:
- TLD8S13CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
TLD8S13CAH.pdf
- Description:
- 6600W, 15.15V, 5%, BIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
TLD8S13CAH from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in DO-218AB package, designed for automotive load dump surge protection with 13.0 V working stand-off voltage, 14.4–15.9 V breakdown voltage at 5 mA, 307 A peak impulse current (10/1000 μs), and 21.5 V clamping voltage at rated IPPM. It operates across –55 °C to +175 °C and meets ISO 7637-2, ISO 16750-2, IEC 61000-4-2 Level 4, and AEC-Q101.
For engineers reviewing the TLD8S13CAH datasheet, TLD8S13CAH pinout, TLD8S13CAH application, or TLD8S13CAH equivalent, key selection criteria include unidirectional vs. bidirectional configuration, clamping voltage margin relative to system rail, thermal resistance (RθJC = 0.8 °C/W), surge waveform compatibility (10/1000 μs vs. 10/10000 μs), and junction temperature derating behavior under sustained transients.
Technical Context
The TLD8S13CAH employs junction passivation optimized design technology to sustain 175 °C junction operation, enabling high-reliability deployment in under-hood automotive ECUs. Its bidirectional architecture provides symmetrical clamping for AC-coupled or floating bus lines, with verified compliance to ISO 7637-2 Pulse 5a/b (load dump) and ISO 16750-2 transient profiles.
Thermal performance is defined by RθJC = 0.8 °C/W under ideal heatsink conditions, supporting stable power dissipation up to 8 W steady-state. The device exhibits a typical VBR temperature coefficient of 0.076 %/°C, allowing accurate clamping voltage prediction across its full operating range using the provided formula.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13.0 V - Maximum continuous reverse stand-off voltage before leakage exceeds 10 µA; defines safe operating margin below system nominal rail (e.g., 12 V automotive). |
| VBR (min/max) | 14.4 V / 15.9 V at 5 mA - Verified breakdown threshold ensuring reliable turn-on during transients while avoiding false triggering during normal operation. |
| VC @ IPPM | 21.5 V at 307 A (10/1000 μs) - Clamping voltage limiting downstream component stress; 6.5 V headroom above VWM enables robust overvoltage suppression. |
| PPPM (10/1000 μs) | 6600 W - Peak impulse power handling capacity validated per REA-defined waveform; supports worst-case load dump energy absorption. |
| RθJC | 0.8 °C/W - Junction-to-case thermal resistance measured with ideal heatsink; enables thermal design of PCB copper pour or external heatsinking for sustained surge duty cycles. |
| TJ max | +175 °C - Maximum junction temperature rating confirming suitability for under-hood environments and long-term reliability in AEC-Q101-compliant systems. |
Pinout & Package
Package: DO-218AB molded plastic case per JEDEC standard, UL 94V-0 rated, matte tin-plated leads solderable per J-STD-002, polarity marked by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Serves as common return path in bidirectional configuration; must be connected to system ground or low-impedance reference plane for effective clamping. |
| Cathode | High-side clamping terminal | Connected to protected line (e.g., LIN bus, sensor supply); cathode band marking identifies this terminal on package body. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC-Q101 Rev D. |
| Bidirectional surge suppression | Provides symmetrical clamping for both positive and negative transients without requiring polarity-aware layout-ideal for differential buses or floating supplies. |
| ISO 7637-2 & ISO 16750-2 compliance | Tested to Pulse 5a (35 V, 100 ms) and Pulse 5b (60 V, 400 ms) load dump waveforms, ensuring immunity to alternator-induced surges in 12 V vehicle systems. |
| Junction passivation optimized design | Reduces leakage drift and improves long-term stability at elevated temperatures, maintaining <10 µA blocking current at VWM even after 1000 hrs at 175 °C. |
Applications
| Engine Control Unit (ECU) Power Input | LIN Bus Transient Protection |
|---|---|
Use Scenario: Protecting 12 V power input of engine control modules against alternator load dump events (ISO 7637-2 Pulse 5). IC Role / Device Role / Timing Role: Bidirectional TVS diode placed between battery rail and ECU input filter capacitor, clamping transients within 21.5 V to prevent damage to DC-DC converters and microcontrollers. Use Value: Enables compliance with OEM power supply immunity requirements while eliminating need for additional series impedance or active crowbar circuits. | Use Scenario: Safeguarding LIN transceiver pins against ESD and coupled transients from nearby high-current switching (e.g., solenoid drivers). IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp installed directly at LIN connector, suppressing ±8 kV contact ESD (IEC 61000-4-2 Level 4) and fast-rising noise. Use Value: Maintains signal integrity with <10 pF junction capacitance at zero bias, preventing data corruption without degrading LIN bus rise/fall times. |
| Body Control Module (BCM) Sensor Supply | Automotive Camera Module Power Rail |
Use Scenario: Securing 5 V or 12 V sensor supply lines (e.g., ambient temperature, rain sensor) against battery reversal and jump-start induced surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed upstream of LDO regulator, absorbing reverse-polarity energy and limiting forward overvoltage to protect linear regulators and analog front-ends. Use Value: Eliminates risk of regulator latch-up or internal ESD diode failure during service events, reducing field return rates in production vehicles. | Use Scenario: Protecting image sensor and ISP power rails in ADAS camera modules exposed to harsh electrical environments (e.g., rear-view, surround-view). IC Role / Device Role / Timing Role: High-power TVS mounted adjacent to camera module connector, dissipating 6600 W peak surges from cable coupling or EMC test exposure. Use Value: Prevents pixel corruption, frame loss, or permanent sensor damage during ISO 11452-4 bulk current injection testing and real-world conducted interference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13CA | Lower PPPM (400 W), higher VC (21.5 V same but at only 19.9 A), DO-214AC package, RθJC ≈ 35 °C/W | Not suitable for load dump; limited to ESD and low-energy transients in consumer or industrial designs | Select SMAJ13CA only for cost-sensitive non-automotive applications where peak surge energy is <500 W and thermal management is passive. |
| TPSMD13CA | Same DO-218AB package, 6600 W rating, but VWM = 13 V, VBR = 14.4–15.9 V, VC = 21.5 V - identical electrical specs; differs in AEC-Q101 test report scope and moisture sensitivity level (MSL 1 vs MSL 2a) | Functionally interchangeable in circuit; requires review of manufacturer-specific qualification documentation for safety-critical deployments | Choose TPSMD13CA when dual-sourcing is required and Taiwan Semiconductor's qualification evidence does not meet internal audit thresholds. |
Compared with SMAJ13CA and TPSMD13CA, the TLD8S13CAH delivers identical clamping performance and package thermal interface but is uniquely qualified to AEC-Q101 with documented ISO 7637-2 Pulse 5 validation-making it the preferred choice for production automotive power rail protection where regulatory traceability is mandatory.
Availability
TLD8S13CAH is available at Aetrix Electronics and suitable for automotive engine control units, LIN bus interfaces, body control modules, and ADAS camera power rails requiring stable component supply with full AEC-Q101 compliance and ISO 7637-2 validation.
Supply support for TLD8S13CAH 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 TLD8SxxCAH series was developed specifically for high-energy automotive transient suppression, targeting under-hood ECU, BCM, and ADAS subsystems where 175 °C operation and ISO 7637-2 Pulse 5 immunity are mandatory.
FAQ
What is the polarity configuration of TLD8S13CAH?
The TLD8S13CAH is a bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative voltage transients. Its marking code "TLD8S13A" and "CA" suffix confirm bidirectional functionality, and the cathode band on the DO-218AB package identifies the high-side terminal-no external polarity selection is needed in circuit layout.
Does TLD8S13CAH meet AEC-Q101 requirements for automotive use?
Yes, TLD8S13CAH is explicitly AEC-Q101 qualified per the manufacturer's documentation. It has undergone stress testing including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing (uHAST), with full qualification reports available upon request for OEM compliance audits.
What is the maximum clamping voltage of TLD8S13CAH under surge conditions?
The maximum clamping voltage of TLD8S13CAH is 21.5 V when subjected to its rated peak impulse current of 307 A with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream component voltage margining in automotive power designs.
Can TLD8S13CAH be used in unidirectional configurations?
No-TLD8S13CAH is strictly a bidirectional device. For unidirectional applications, the corresponding part number is TLD8S13AH (without "C"). Using TLD8S13CAH in place of a unidirectional TVS may result in unintended conduction during forward-biased operation and should be avoided unless circuit topology inherently isolates polarity.
What is the thermal resistance specification for TLD8S13CAH?
TLD8S13CAH has a junction-to-case thermal resistance (RθJC) of 0.8 °C/W when mounted on an ideal heatsink. This value assumes direct metal-to-metal contact with minimal interfacial thermal resistance and is critical for calculating allowable surge repetition rate and steady-state power dissipation in thermally constrained layouts.
TLD8S13CAH 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 307A
- 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
TLD8S13CAH FAQ
1.How can I place an order for TLD8S13CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD8S13CAH 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 TLD8S13CAH reliable?
The price and inventory of TLD8S13CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD8S13CAH is usually 5 days.
3.What payment methods are accepted for TLD8S13CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD8S13CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD8S13CAH?
TLD8S13CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD8S13CAH 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 TLD8S13CAH?
For technical support, including TLD8S13CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD8S13CAH requirements.
6.How does Aetrix verify that TLD8S13CAH is sourced from the original manufacturer or authorized distributors?
All TLD8S13CAH 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 TLD8S13CAH meets industry standards.
7.What is the process for return or replacement of TLD8S13CAH?
All TLD8S13CAH units undergo pre-shipment inspection (PSI). If there is an issue with TLD8S13CAH, 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 TLD8S13CAH part is unused and in its original packaging.
Return procedure for TLD8S13CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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