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Taiwan Semiconductor Corporation TLD6S36AH
- Part No.:
- TLD6S36AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
TLD6S36AH.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
TLD6S36AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-218AB package, rated for 36.0 V working stand-off voltage, 40.0–44.2 V breakdown voltage at 5.0 mA test current, and 4600 W peak pulse power (10/1000 µs). It delivers automotive-grade surge protection against load dump and ISO 7637-2 transients in 12 V/24 V vehicle power systems.
For engineers reviewing the TLD6S36AH datasheet, TLD6S36AH pinout, TLD6S36AH application, or TLD6S36AH equivalent, key selection criteria include clamping voltage (58.1 V at 79 A), junction temperature capability (−55 °C to +175 °C), unidirectional polarity, DO-218AB mechanical compatibility, and AEC-Q101 qualification for under-hood deployment.
Technical Context
The TLD6S36AH operates as a unidirectional avalanche diode optimized for high-energy automotive transients. Its 4600 W (10/1000 µs) and 3600 W (10/10000 µs) non-repetitive peak pulse power ratings enable robust load dump suppression per ISO 16750-2 and ISO 7637-2 Level V. The device features junction passivation and meets IEC 61000-4-2 Level 4 ESD immunity.
Thermal performance is defined by a junction-to-case thermal resistance of 0.85 °C/W with ideal heatsinking, supporting continuous operation up to TJ = 175 °C. Its 1.9 V forward voltage at 100 A ensures low conduction loss during high-current surges, while the 0.091 %/°C temperature coefficient of VBR enables predictable voltage drift over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 40.0–44.2 V at IT = 5.0 mA - Confirmed avalanche onset range for reliable turn-on threshold |
| VC @ IPPM | 58.1 V at 79 A (10/1000 µs) - Clamping voltage limiting downstream circuit stress during worst-case surge |
| PPPM (10/1000 µs) | 4600 W - Peak surge energy absorption capacity matching ISO 7637-2 Pulse 5a requirements |
| TJ max | +175 °C - Enables placement near hot engine compartments without derating |
| RθJC | 0.85 °C/W - Thermal path efficiency enabling effective heatsink coupling for sustained surge duty |
| IR @ VWM | 10 µA at 25 °C - Low leakage preserves battery standby life in always-on automotive modules |
Pinout & Package
Package: DO-218AB - Surface-mount, unidirectional, single-die TVS diode with matte tin-plated leads, UL 94V-0 molding compound, and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked end) | Surge current sink | Connected to protected line (e.g., battery rail); conducts transient energy to ground during overvoltage |
| Anode | Reference/return path | Connected to system ground; completes clamping path with minimal inductance for fast response |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per AEC standard |
| Junction passivation technology | Enhanced long-term reliability under repeated surge stress and high-temperature operation |
| ISO 7637-2 & ISO 16750-2 compliance | Meets automotive load dump and supply voltage variation test profiles without external circuitry |
| IEC 61000-4-2 Level 4 | Withstands ±15 kV air discharge and ±8 kV contact discharge ESD events in vehicle ECUs |
| DO-218AB mechanical robustness | UL 94V-0 flammability rating and 2.682 g mass support vibration-resistant mounting on power PCBs |
Applications
| Automotive Load Dump Protection | 12 V/24 V Power Rail Clamping |
|---|---|
Use Scenario: Protecting engine control units (ECUs) during alternator load dump events where battery disconnect causes 120 V spikes lasting up to 400 ms. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and ground, clamping transients within 1 ns response time. Use Value: Limits peak voltage to 58.1 V, preventing damage to 40 V-rated MOSFETs and microcontrollers downstream. | Use Scenario: Safeguarding infotainment head units powered from vehicle battery with wide input range (9–16 V nominal). IC Role / Device Role / Timing Role: Standoff protector maintaining 36.0 V DC blocking while absorbing repetitive 10/1000 µs surges up to 4600 W. Use Value: Eliminates need for series resistors or additional filtering due to low leakage (10 µA) and stable VBR temperature coefficient (0.091 %/°C). |
| Start-Stop System Power Conditioning | Body Control Module (BCM) Surge Suppression |
Use Scenario: Securing start-stop logic circuits exposed to rapid battery voltage collapse and recovery cycles during engine restart. IC Role / Device Role / Timing Role: Fast-response clamping element across main power input, activated within nanoseconds of overvoltage detection. Use Value: Sustains operation at TJ = 175 °C ambient, enabling direct placement on high-current power traces without thermal derating. | Use Scenario: Shielding BCM microcontroller I/O and CAN transceivers from coupled transients induced by relay switching and motor loads. IC Role / Device Role / Timing Role: Secondary-level protection after primary fusing, shunting surge current away from sensitive digital interfaces. Use Value: Meets IEC 61000-4-2 Level 4 ESD immunity and provides 3600 W (10/10000 µs) energy handling for slow-decay surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | Lower PPPM (400 W), SMA package, 58.1 V VC same but 300 A IPPM vs. 79 A | Not suitable for ISO 7637-2 load dump; limited to lower-energy ESD/surge events | Select only for cost-sensitive non-automotive applications with <1 kW surge exposure |
| SMCJ36A | Same DO-214AB package, 1500 W PPPM (10/1000 µs), 58.1 V VC, higher IR (50 µA) | Lacks AEC-Q101 qualification and fails ISO 16750-2 load dump margin | Acceptable for industrial 24 V systems lacking automotive certification requirements |
Compared with SMAJ36A and SMCJ36A, the TLD6S36AH delivers 3× higher surge power handling, automotive qualification, and tighter leakage-making it the sole choice for AEC-compliant load dump protection where 4600 W clamping and 175 °C operation are mandatory.
Availability
TLD6S36AH is available at Aetrix Electronics and suitable for automotive ECU design, start-stop system integration, and body control module production requiring stable component supply and full AEC-Q101 traceability.
Supply support for TLD6S36AH 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 power devices, TVS diodes, and automotive-qualified components.
The TLD6SxxAH family was engineered specifically for automotive load dump and ISO 16750-2 transient suppression, emphasizing high-power clamping, extended temperature operation, and AEC-Q101 reliability in DO-218AB packaging.
FAQ
What is the maximum clamping voltage of the TLD6S36AH under surge conditions?
The TLD6S36AH has a maximum clamping voltage (VC) of 58.1 V when subjected to a 79 A peak pulse current with a 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during worst-case transients. The TLD6S36AH maintains this clamping performance across its full operating temperature range, ensuring consistent protection in under-hood environments.
Is the TLD6S36AH qualified for automotive applications?
Yes, the TLD6S36AH is AEC-Q101 qualified and designed explicitly for automotive use. It meets ISO 7637-2 and ISO 16750-2 surge specifications, supports junction temperatures up to +175 °C, and passes JESD 201 Class 2 whisker testing. These qualifications make the TLD6S36AH suitable for engine control units, body control modules, and other safety-critical vehicle subsystems requiring certified transient protection.
What package type does the TLD6S36AH use, and what are its mechanical advantages?
The TLD6S36AH uses the DO-218AB surface-mount package, which features a flat, low-profile outline optimized for high-current handling and thermal dissipation. Its matte tin-plated leads ensure solderability per J-STD-002, UL 94V-0 flammability rating enhances fire safety, and 2.682 g mass contributes to mechanical stability under automotive vibration. Unlike smaller packages like SMA or SMC, DO-218AB supports the 4600 W surge rating required for load dump compliance.
How does the TLD6S36AH compare to standard SMAJ or SMCJ series TVS diodes?
The TLD6S36AH delivers significantly higher surge capability (4600 W vs. 400 W for SMAJ36A and 1500 W for SMCJ36A), AEC-Q101 qualification, and lower leakage current (10 µA vs. 50 µA for SMCJ36A). Its DO-218AB package enables superior thermal performance (RθJC = 0.85 °C/W) and mechanical robustness. These attributes make the TLD6S36AH uniquely suited for automotive load dump protection where standard alternatives fall short in energy handling and certification.
What is the temperature coefficient of breakdown voltage for the TLD6S36AH?
The TLD6S36AH has a typical temperature coefficient of breakdown voltage (αT) of 0.091 %/°C. This value allows accurate prediction of VBR shift across temperature using the formula VBR@TJ = VBR@25°C × [1 + αT × (TJ − 25)]. For the TLD6S36AH, with VBR ranging from 40.0 V to 44.2 V at 25 °C, this coefficient ensures stable clamping behavior from −55 °C to +175 °C, critical for automotive under-hood reliability.
TLD6S36AH 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 79A
- 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
TLD6S36AH FAQ
1.How can I place an order for TLD6S36AH through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD6S36AH 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 TLD6S36AH reliable?
The price and inventory of TLD6S36AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD6S36AH is usually 5 days.
3.What payment methods are accepted for TLD6S36AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD6S36AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD6S36AH?
TLD6S36AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD6S36AH 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 TLD6S36AH?
For technical support, including TLD6S36AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD6S36AH requirements.
6.How does Aetrix verify that TLD6S36AH is sourced from the original manufacturer or authorized distributors?
All TLD6S36AH 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 TLD6S36AH meets industry standards.
7.What is the process for return or replacement of TLD6S36AH?
All TLD6S36AH units undergo pre-shipment inspection (PSI). If there is an issue with TLD6S36AH, 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 TLD6S36AH part is unused and in its original packaging.
Return procedure for TLD6S36AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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