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Taiwan Semiconductor Corporation TLD5S36AH
- Part No.:
- TLD5S36AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
TLD5S36AH.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,479
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Product details
Overview
TLD5S36AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-218AB package, rated for 36 V working stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 5 mA, and 3600 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 TLD5S36AH datasheet, TLD5S36AH pinout, TLD5S36AH application, or TLD5S36AH equivalent, key selection criteria include its 58.1 V clamping voltage at 62 A IPPM, 0.9 °C/W junction-to-case thermal resistance, AEC-Q101 qualification, and compliance with ISO 16750-2 and IEC 61000-4-2 Level 4.
Technical Context
The TLD5S36AH employs junction passivation optimized design technology to sustain continuous operation up to TJ = 175 °C, enabling high-reliability deployment in under-hood automotive environments. Its unidirectional configuration provides reverse-biased transient suppression while maintaining low leakage (<10 µA at VWM) across temperature.
It meets ISO 7637-2 Pulse 5a/b (load dump) and ISO 16750-2 surge requirements under defined test conditions, with verified 3600 W (10/1000 µs) and 2800 W (10/10000 µs) non-repetitive peak impulse power dissipation. Thermal performance assumes ideal heatsink mounting per RθJC = 0.9 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 40.0–44.2 V at 5 mA - Confirmed breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | 58.1 V at 62 A (10/1000 µs) - Clamping voltage limiting downstream circuit stress during surge |
| PPPM | 3600 W (10/1000 µs) - Peak transient energy absorption capability for short-duration load dump events |
| RθJC | 0.9 °C/W - Enables effective thermal management when mounted to heatsink or copper plane |
| TJ max | 175 °C - Supports operation in high-ambient under-hood locations without derating |
| IR @ VWM | ≤10 µA at 25 °C - Ensures minimal standby current draw in always-on vehicle modules |
Pinout & Package
Package: DO-218AB - Surface-mount, unidirectional TVS diode with matte tin-plated leads, UL 94V-0 molding compound, and JESD 201 Class 2 whisker resistance. Polarity marked on case; cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Reverse-biased surge path terminal | Connected to protected line (e.g., battery feed); conducts only during overvoltage transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, mechanical shock, and humidity testing |
| Junction passivation optimized design | Enables stable VBR and low leakage over lifetime and temperature extremes |
| ISO 7637-2 / ISO 16750-2 compliance | Meets standardized automotive surge immunity requirements for 12 V/24 V systems |
| 175 °C junction rating | Supports uninterrupted operation in engine compartment and powertrain control units |
| DO-218AB package with 2.677 g mass | Provides robust thermal mass and mechanical stability for high-energy surge handling |
Applications
| Engine Control Unit (ECU) Power Input Protection | Body Control Module (BCM) Battery Line Protection |
|---|---|
Use Scenario: Protects ECU microcontroller and analog front-end from 12 V battery line transients including load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed directly at power entry point before input filter. Use Value: Limits clamped voltage to 58.1 V during 62 A surge, preventing damage to downstream 40 V-rated DC-DC converters and LDOs. | Use Scenario: Shields BCM power supply from alternator-induced spikes and ISO 7637-2 Pulse 5a/b events in vehicle body networks. IC Role / Device Role / Timing Role: Primary surge suppression element on main 12 V rail, upstream of fuse and bulk capacitance. Use Value: Absorbs 3600 W peak power without failure, maintaining system uptime during repeated load dump events. |
| ADAS Camera Module Power Rail Protection | Electric Power Steering (EPS) Control Board Protection |
Use Scenario: Safeguards image sensor and SerDes interface ICs in rear-view or surround-view cameras exposed to harsh vehicle electrical noise. IC Role / Device Role / Timing Role: Fast-response TVS placed adjacent to camera module connector to suppress ESD and conducted transients. Use Value: Meets IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) and clamps within 1 ns to protect sensitive analog video paths. | Use Scenario: Defends EPS motor driver ICs and position sensor interfaces against high-current surges during steering actuation and fault recovery. IC Role / Device Role / Timing Role: High-energy TVS integrated into H-bridge power stage input, thermally coupled to heatsink. Use Value: Sustains 175 °C junction temperature while delivering 2800 W (10/10000 µs) long-tail surge absorption for EPS reliability. |
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, RθJC ≈ 50 °C/W, no AEC-Q101 qualification | Not suitable for automotive load dump; limited to consumer/industrial low-energy transients | Select only for cost-sensitive non-automotive designs with <500 W surge exposure |
| SMCJ36A | Higher PPPM (1500 W), SMC package, RθJC ≈ 1.5 °C/W, AEC-Q101 not claimed | Acceptable for some 24 V industrial systems but lacks full ISO 7637-2 validation and 175 °C rating | Consider where automotive qualification and 3600 W capability are not mandatory |
Compared with SMAJ36A and SMCJ36A, the TLD5S36AH uniquely combines AEC-Q101 qualification, 3600 W surge capacity, 0.9 °C/W thermal resistance, and validated ISO 7637-2 compliance-making it the only option qualified for high-energy automotive load dump protection in space-constrained DO-218AB footprint.
Availability
TLD5S36AH is available at Aetrix Electronics and suitable for automotive ECU power protection, ADAS camera module surge suppression, and electric power steering control board hardening requiring stable component supply and full AEC-Q101 traceability.
Supply support for TLD5S36AH 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 rectifiers with global automotive and industrial certifications.
The TLD5SxxAH series was designed specifically for high-reliability automotive transient suppression, targeting load dump, jump-start, and ISO 16750-2 surge events in 12 V/24 V vehicle architectures.
FAQ
What is the clamping voltage of the TLD5S36AH at its rated peak pulse current?
The TLD5S36AH has a maximum clamping voltage (VC) of 58.1 V at 62 A peak pulse current with a 10/1000 µs waveform. This value is measured under standard test conditions (TA = 25 °C) and defines the upper voltage limit imposed on protected circuits during surge events. The TLD5S36AH maintains this clamping performance consistently across its operational temperature range due to its junction passivation design and thermal architecture.
Is the TLD5S36AH qualified for automotive applications?
Yes, the TLD5S36AH is AEC-Q101 qualified and explicitly designed for automotive use. It meets ISO 7637-2 and ISO 16750-2 surge specifications under defined test conditions and supports continuous operation up to TJ = 175 °C. Its DO-218AB package, moisture sensitivity level 1 rating, and halogen-free construction align with automotive manufacturing and reliability requirements. The TLD5S36AH is intended for safety-critical power rail protection in ECUs, BCMs, and ADAS modules.
What is the thermal resistance from junction to case for the TLD5S36AH?
The TLD5S36AH has a typical junction-to-case thermal resistance (RθJC) of 0.9 °C/W when mounted to an ideal heatsink. This low value enables efficient heat transfer from the silicon die to the PCB copper or external heatsink, supporting sustained operation during repetitive surge events. The RθJC specification assumes optimal thermal interface and mounting pressure, and actual system-level RθJA will depend on board layout and copper area. The TLD5S36AH's thermal performance is integral to its 3600 W peak power rating.
Does the TLD5S36AH meet IEC 61000-4-2 ESD immunity standards?
Yes, the TLD5S36AH meets IEC 61000-4-2 Level 4 (±15 kV air discharge, ±8 kV contact discharge) and ISO 10605 Level L4. These ratings are confirmed in the official TSC documentation and reflect its capability to suppress fast-rising electrostatic discharges commonly encountered at vehicle connectors and user interfaces. As a unidirectional TVS, the TLD5S36AH provides targeted protection on positive rails, and its response time is sufficient to safeguard sensitive analog and digital components downstream. The TLD5S36AH's ESD performance is part of its broader transient immunity profile.
What is the marking code for the TLD5S36AH and how is polarity identified?
The TLD5S36AH is marked with "TLD5S36A" on the case, followed by date and factory codes. Polarity is indicated by a band on the cathode end of the DO-218AB package - consistent with industry-standard unidirectional TVS diode marking. The cathode terminal connects to the protected line (e.g., battery rail), while the anode connects to ground. This orientation ensures proper clamping action during positive-going transients. The TLD5S36AH's marking and polarity alignment are verified per JESD 201 Class 2 whisker testing and JEDEC-compliant visual inspection protocols.
TLD5S36AH 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):
- 62A
- Power - Peak Pulse:
- 2800W (2.8kW)
- 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
TLD5S36AH FAQ
1.How can I place an order for TLD5S36AH through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD5S36AH 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 TLD5S36AH reliable?
The price and inventory of TLD5S36AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD5S36AH is usually 5 days.
3.What payment methods are accepted for TLD5S36AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD5S36AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD5S36AH?
TLD5S36AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD5S36AH 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 TLD5S36AH?
For technical support, including TLD5S36AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD5S36AH requirements.
6.How does Aetrix verify that TLD5S36AH is sourced from the original manufacturer or authorized distributors?
All TLD5S36AH 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 TLD5S36AH meets industry standards.
7.What is the process for return or replacement of TLD5S36AH?
All TLD5S36AH units undergo pre-shipment inspection (PSI). If there is an issue with TLD5S36AH, 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 TLD5S36AH part is unused and in its original packaging.
Return procedure for TLD5S36AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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