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Taiwan Semiconductor Corporation TLD5S16AH
- Part No.:
- TLD5S16AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
TLD5S16AH.pdf
- Description:
- TVS DIODE 16VWM 26VC DO218AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,277
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Product details
Overview
TLD5S16AH from Taiwan Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in DO-218AB package, rated for 16.0 V working stand-off voltage, 17.8–19.7 V breakdown voltage at 5.0 mA, and 3600 W peak pulse power (10/1000 μs), designed for automotive load dump surge protection in engine control units and body electronics.
For engineers reviewing the TLD5S16AH datasheet, TLD5S16AH pinout, TLD5S16AH application, or TLD5S16AH equivalent, key selection criteria include its AEC-Q101 qualification, 175 °C junction capability, ISO 7637-2 compliance, and DO-218AB thermal performance with RθJC = 0.9 °C/W under ideal heatsink conditions.
Technical Context
The TLD5S16AH implements a single-die, unidirectional TVS structure optimized for high-energy transients using junction passivation technology. It delivers clamping voltage of 26.0 V at 138 A (10/1000 μs), with temperature coefficient of VBR = +0.081 %/°C and maximum blocking leakage current ≤10 µA at VWM.
Its thermal design supports continuous operation up to TJ = 175 °C, with steady-state power dissipation of 5 W and peak forward surge current rating of 500 A (8.3 ms half-sine). The device meets IEC 61000-4-2 Level 4 and ISO 10605 L4 ESD immunity standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 17.8–19.7 V at 5.0 mA - Ensures reliable triggering above system nominal voltage with margin |
| VC @ IPPM | 26.0 V at 138 A (10/1000 μs) - Clamps induced surges to protect downstream 24 V logic and MCU inputs |
| PPPM (10/1000 μs) | 3600 W - Withstands automotive load dump events per ISO 7637-2 Pulse 5a without failure |
| RθJC | 0.9 °C/W - Enables effective heat transfer to PCB copper or external heatsink for sustained surge duty |
| TJ max | 175 °C - Supports under-hood placement in engine compartments and transmission control modules |
| Leakage @ VWM | ≤10 µA at 25 °C - Minimizes standby power loss in always-on vehicle networks |
Pinout & Package
Package: DO-218AB - Surface-mount, unidirectional, single-anode/single-cathode configuration with matte tin-plated leads, UL 94V-0 molding compound, and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path during surge clamping |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., battery rail); conducts when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability across temperature cycling, humidity, and mechanical shock |
| 175 °C junction rating | Enables direct mounting near high-temperature sources like power converters and motor drivers |
| ISO 7637-2 & ISO 16750-2 compliant | Guarantees robustness against real-world automotive electrical transients including load dump and jump start |
| DO-218AB thermal performance | 0.9 °C/W junction-to-case resistance allows ≥5 W steady-state dissipation with minimal board copper area |
| Uni-directional polarity | Prevents false triggering on normal positive DC bias while suppressing negative-going spikes |
Applications
| Engine Control Unit (ECU) Power Input Protection | Body Control Module (BCM) CAN Bus Line Protection |
|---|---|
Use Scenario: Protects 12 V/24 V supply rails in ECUs from alternator load dump surges exceeding 100 V. IC Role / Device Role / Timing Role: Primary clamping element placed between battery feed and upstream fuse, conducting only during overvoltage events. Use Value: Limits peak rail voltage to 26.0 V, preventing damage to 3.3 V/5 V regulators and microcontrollers. | Use Scenario: Shields CAN transceivers from coupled transients on power-supplied CAN lines in door modules and lighting controllers. IC Role / Device Role / Timing Role: Secondary surge shunt located on VCC rail adjacent to CAN PHY IC, activated within nanoseconds. Use Value: Maintains CAN signal integrity by limiting supply rail excursions that cause transceiver latch-up or reset. |
| Start-Stop System Battery Interface | Electric Power Steering (EPS) Motor Driver Supply Rail |
Use Scenario: Absorbs repeated 30–40 V transients generated during frequent engine restart cycles in 12 V start-stop systems. IC Role / Device Role / Timing Role: High-reliability TVS mounted directly at battery connector entry point, rated for ≥100,000 surge events. Use Value: Extends lifetime of DC-DC converters and gate drivers by limiting repetitive stress on input capacitors and MOSFETs. | Use Scenario: Guards 42 V auxiliary supply rail feeding EPS motor driver ICs against inductive kickback from H-bridge switching. IC Role / Device Role / Timing Role: Fast-response clamping device placed between bulk capacitor and driver IC VDD, sized for 2800 W (10/10,000 μs) energy absorption. Use Value: Prevents destructive overvoltage on driver ICs during rapid motor deceleration or fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Lower PPPM = 400 W (10/1000 μs); DO-214AC package; RθJC ≈ 35 °C/W | Not suitable for ISO 7637-2 load dump; limited to lower-energy ESD/surge events | Select SMAJ16A only for non-automotive, low-power industrial I/O protection where 3600 W capability is unnecessary |
| TPSMD16A | Same PPPM = 3600 W but higher VC = 28.5 V; DO-218AB package; AEC-Q101 qualified | Higher clamping voltage reduces margin for 24 V system ICs with 30 V absolute max ratings | Choose TPSMD16A if board layout requires identical footprint but can tolerate 2.5 V higher clamping than TLD5S16AH |
Compared with SMAJ16A and TPSMD16A, the TLD5S16AH provides optimal balance of ultra-low clamping (26.0 V), automotive-grade thermal robustness (RθJC = 0.9 °C/W), and full ISO 7637-2 compliance-making it preferred for high-reliability 24 V power rail protection where voltage margin and thermal management are critical.
Availability
TLD5S16AH is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and start-stop system power interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge protection.
Supply support for TLD5S16AH 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 developed specifically for high-energy automotive transient suppression, targeting ISO 7637-2 load dump and ISO 16750-2 surge immunity in 12 V/24 V vehicle architectures.
FAQ
What is the clamping voltage of the TLD5S16AH under standard test conditions?
The TLD5S16AH has a maximum clamping voltage VC of 26.0 V when subjected to a 10/1000 μs peak pulse current of 138 A. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuits during surge events. The TLD5S16AH maintains this clamping performance across its full operating temperature range, making it suitable for under-hood deployment where ambient temperatures exceed 100 °C.
Is the TLD5S16AH qualified for automotive use per AEC-Q101?
Yes, the TLD5S16AH is fully AEC-Q101 qualified. It has passed stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing (uHAST), confirming suitability for automotive powertrain and chassis applications. The TLD5S16AH also meets moisture sensitivity level 1 per J-STD-020 and complies with RoHS and halogen-free requirements per IEC 61249-2-21.
What package type does the TLD5S16AH use, and what are its thermal characteristics?
The TLD5S16AH uses the DO-218AB surface-mount package, featuring matte tin-plated leads and UL 94V-0 molding compound. Its junction-to-case thermal resistance is 0.9 °C/W under ideal heatsink conditions, enabling efficient heat transfer from the silicon die to PCB copper or external thermal mass. This low RθJC supports sustained power dissipation and improves reliability during repetitive surge events.
How does the TLD5S16AH compare to other TVS diodes in the same family regarding breakdown voltage tolerance?
The TLD5S16AH has a specified breakdown voltage range of 17.8–19.7 V at 5.0 mA test current, representing a ±5.5% tolerance around the nominal 18.75 V midpoint. This tighter VBR spread ensures consistent triggering behavior across production lots and simplifies system-level margin analysis compared to broader-tolerance alternatives. All TLD5SxxAH variants maintain this controlled VBR distribution.
Does the TLD5S16AH meet international surge immunity standards for automotive electronics?
Yes, the TLD5S16AH meets ISO 7637-2 (load dump) and ISO 16750-2 (electrical load dump and surge) requirements under defined test conditions. It also satisfies IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) and ISO 10605 L4 (±30 kV air, ±30 kV contact) ESD immunity standards. These certifications are documented in Taiwan Semiconductor's official qualification reports for the TLD5SxxAH series.
TLD5S16AH 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 138A
- 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
TLD5S16AH FAQ
1.How can I place an order for TLD5S16AH through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD5S16AH 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 TLD5S16AH reliable?
The price and inventory of TLD5S16AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD5S16AH is usually 5 days.
3.What payment methods are accepted for TLD5S16AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD5S16AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD5S16AH?
TLD5S16AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD5S16AH 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 TLD5S16AH?
For technical support, including TLD5S16AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD5S16AH requirements.
6.How does Aetrix verify that TLD5S16AH is sourced from the original manufacturer or authorized distributors?
All TLD5S16AH 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 TLD5S16AH meets industry standards.
7.What is the process for return or replacement of TLD5S16AH?
All TLD5S16AH units undergo pre-shipment inspection (PSI). If there is an issue with TLD5S16AH, 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 TLD5S16AH part is unused and in its original packaging.
Return procedure for TLD5S16AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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