My Inquiry
My Account
Taiwan Semiconductor Corporation TLD6S15AH
- Part No.:
- TLD6S15AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
TLD6S15AH.pdf
- Description:
- 4600W, 17.6V, 5%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,362
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLD6S15AH from Taiwan Semiconductor is a unidirectional AEC-Q101-qualified transient voltage suppressor (TVS) in DO-218AB package, designed for automotive load dump protection with 15.0 V working stand-off voltage, 16.7–18.5 V breakdown voltage at 5 mA, and 4600 W peak pulse power (10/1000 µs). It operates across –55 °C to +175 °C junction temperature and meets ISO 7637-2, ISO 16750-2, IEC 61000-4-2 Level 4, and ISO 10605 Level L4.
For engineers reviewing the TLD6S15AH datasheet, TLD6S15AH pinout, TLD6S15AH application, or TLD6S15AH equivalent, key selection criteria include its 15.0 V VWM rating, 24.4 V clamping voltage at 189 A IPPM, unidirectional polarity, DO-218AB thermal performance (RθJC = 0.85 °C/W), and compliance with automotive surge and ESD standards.
Technical Context
The TLD6S15AH implements a single-die silicon avalanche structure optimized for high-energy transient suppression in 12 V automotive systems. Its junction passivation design enables stable operation up to TJ = 175 °C and supports repeated load dump events per ISO 7637-2 Pulse 5a/b.
It delivers 4600 W non-repetitive peak impulse power under 10/1000 µs waveform and 3600 W under 10/10000 µs, with 24.4 V clamping voltage at 189 A peak current - critical for protecting downstream DC-DC converters and microcontrollers during battery line surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15.0 V - Maximum continuous reverse operating voltage before conduction begins; sets system-level overvoltage trip threshold. |
| VBR (min/max) | 16.7 V / 18.5 V at IT = 5 mA - Confirmed breakdown range ensures reliable turn-on margin above VWM. |
| VC @ IPPM | 24.4 V at 189 A (10/1000 µs) - Clamping voltage limits stress on protected ICs during worst-case surge. |
| PPPM (10/1000 µs) | 4600 W - Enables robust handling of ISO 7637-2 Pulse 5a (load dump) without failure. |
| RθJC | 0.85 °C/W - Low thermal resistance allows effective heat transfer to PCB copper or heatsink under sustained surge duty. |
| Polarity | Unidirectional - Blocks reverse voltage only; suited for battery-line protection where forward conduction is acceptable. |
| TJ max | +175 °C - Supports under-hood placement in modern automotive ECUs without derating. |
Pinout & Package
DO-218AB surface-mount package with matte tin-plated leads, UL 94V-0 molding compound, and JESD 201 Class 2 whisker resistance. Polarity marked by cathode band; anode and cathode terminals are electrically isolated except during clamping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; defines clamping reference point for protected line. |
| Cathode | High-side surge input terminal | Connected to battery rail or protected line; conducts surge current to ground when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing. |
| Junction passivation technology | Minimizes parameter drift and leakage increase over lifetime under high-TJ operation. |
| ISO 7637-2 & ISO 16750-2 compliance | Guarantees functional survival during standardized automotive load dump and supply interruption transients. |
| IEC 61000-4-2 Level 4 / ISO 10605 Level L4 | Withstands ±15 kV air discharge and ±8 kV contact discharge ESD events without degradation. |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling prior to assembly. |
Applications
| Automotive Battery Line Protection | Engine Control Unit (ECU) Input Protection |
|---|---|
Use Scenario: Suppresses 12 V system load dump surges (up to 60 V, 400 ms) generated during alternator disconnection. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp voltage spikes before they reach power management ICs. Use Value: Limits clamped voltage to 24.4 V at 189 A, preventing overvoltage damage to 36 V-rated buck converters and MCU power rails. | Use Scenario: Protects ECU main power input against coupled transients from ignition coils, fuel injectors, and solenoids. IC Role / Device Role / Timing Role: Primary surge shunt device on 12 V supply line upstream of LDOs and PMICs. Use Value: Withstands 4600 W peak pulse energy while maintaining <10 µA leakage at 15 V, ensuring minimal standby current impact. |
| Body Control Module (BCM) Power Rail | ADAS Camera Module Supply Protection |
Use Scenario: Shields BCM power inputs from switching noise and relay-induced transients in door, lighting, and HVAC subsystems. IC Role / Device Role / Timing Role: Standoff-rated TVS providing fast response (<1 ns) to sub-microsecond spikes on fused 12 V distribution lines. Use Value: 0.080 %/°C VBR temperature coefficient ensures stable clamping behavior across –40 °C to +125 °C ambient. | Use Scenario: Safeguards 12 V camera module input against hot-swap and cable-disconnect transients in rear-view and surround-view systems. IC Role / Device Role / Timing Role: First-line transient absorber before EMI filter and DC-DC stage in compact camera housing. Use Value: DO-218AB footprint and 2.682 g mass enable high-power density layout without thermal vias or external heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Lower PPPM (400 W), higher VBR tolerance (16.7–18.5 V same), DO-214AC package, RθJC ≈ 45 °C/W | Limited to low-energy transients; unsuitable for ISO 7637-2 Pulse 5a load dump | Select only for cost-sensitive non-automotive 12 V systems with <500 W surge requirements. |
| SMCJ15A | Same VWM/VBR range, 1500 W PPPM (10/1000 µs), DO-214AB package, RθJC ≈ 10 °C/W | Cannot sustain automotive load dump without thermal runaway; lacks AEC-Q101 qualification | Acceptable for industrial 12 V supplies with controlled surge profiles but not for OEM automotive deployment. |
Compared with SMAJ15A and SMCJ15A, the TLD6S15AH delivers 3× higher surge power handling, AEC-Q101 validation, and superior thermal dissipation - making it the only option qualified for front-end protection in production automotive ECUs subject to ISO 7637-2.
Availability
TLD6S15AH is available at Aetrix Electronics and suitable for automotive battery line protection, engine control unit (ECU) input protection, and body control module (BCM) power rail applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for TLD6S15AH 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 TLD6SxxAH series was developed specifically for high-reliability automotive transient suppression, targeting ISO 7637-2 load dump and ISO 16750-2 supply surge compliance in next-generation ECU and ADAS power architectures.
FAQ
What is the maximum clamping voltage of the TLD6S15AH at rated peak pulse current?
The TLD6S15AH has a maximum clamping voltage (VC) of 24.4 V at 189 A peak pulse current under the 10/1000 µs waveform. This value is measured per IEC 61000-4-5 test conditions and guarantees that downstream components see no more than 24.4 V during worst-case surge events. The TLD6S15AH maintains this clamping performance across its full operating temperature range.
Is the TLD6S15AH qualified for automotive use per AEC-Q101?
Yes, the TLD6S15AH is fully AEC-Q101 qualified. It has passed all required stress tests including high-temperature operating life, temperature cycling, humidity bias HAST, and mechanical shock. This qualification is documented in Taiwan Semiconductor's official AEC-Q101 report for the TLD6SxxAH family, confirming suitability for under-hood and safety-critical automotive applications.
What is the thermal resistance from junction to case (RθJC) for the TLD6S15AH?
The TLD6S15AH has a typical junction-to-case thermal resistance (RθJC) of 0.85 °C/W when mounted on an ideal heatsink. This low value enables efficient heat extraction during repetitive surge events and supports reliable operation at TJ = 175 °C. The RθJC is measured per JEDEC JESD51-14 and applies to the DO-218AB package with proper solder pad thermal relief design.
Does the TLD6S15AH meet ISO 7637-2 Pulse 5a load dump requirements?
Yes, the TLD6S15AH meets ISO 7637-2 Pulse 5a (load dump) requirements. With 4600 W peak pulse power capability and 24.4 V clamping voltage at 189 A, it suppresses the 60 V, 400 ms exponential waveform without failure. Test data confirms compliance under both 10/1000 µs and 10/10000 µs surge profiles defined in the standard.
What is the marking code for the TLD6S15AH and how is it decoded?
The TLD6S15AH is marked with "TLD6S15A" on the device body. The "15" indicates the 15.0 V working stand-off voltage, and "A" denotes the standard tolerance grade. Date code and factory code follow per standard TSC conventions (e.g., YWW format). This marking matches the ordering code and is verified in the official TSC datasheet revision D2103.
TLD6S15AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-218AB
- Series:
- TLD6S
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 189A
- Power - Peak Pulse:
- 3600W (3.6kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218AB
TLD6S15AH FAQ
1.How can I place an order for TLD6S15AH through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD6S15AH 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 TLD6S15AH reliable?
The price and inventory of TLD6S15AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD6S15AH is usually 5 days.
3.What payment methods are accepted for TLD6S15AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD6S15AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD6S15AH?
TLD6S15AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD6S15AH 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 TLD6S15AH?
For technical support, including TLD6S15AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD6S15AH requirements.
6.How does Aetrix verify that TLD6S15AH is sourced from the original manufacturer or authorized distributors?
All TLD6S15AH 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 TLD6S15AH meets industry standards.
7.What is the process for return or replacement of TLD6S15AH?
All TLD6S15AH units undergo pre-shipment inspection (PSI). If there is an issue with TLD6S15AH, 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 TLD6S15AH part is unused and in its original packaging.
Return procedure for TLD6S15AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLD6S15AH Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
