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Taiwan Semiconductor Corporation 1.5KE15A A0G
- Part No.:
- 1.5KE15A A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE15A A0G.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:9,700
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Product details
Overview
1.5KE15A A0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 15 V, minimum VBR 14.3 V at 1.0 mA test current, maximum clamping voltage 21.2 V at 74 A peak pulse current, and working stand-off voltage 12.8 V - designed for automotive and industrial power rail protection against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE15A A0G datasheet, 1.5KE15A A0G pinout, 1.5KE15A A0G application, or 1.5KE15A A0G equivalent, key selection criteria include unidirectional polarity, DO-201 mechanical form factor, 1500W 10/1000μs surge rating, <1.0 ps response time, and AEC-Q101 qualification status confirmed for this variant.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM = 12.8 V, then avalanches sharply at VBR = 14.3–15.8 V to limit transient overvoltage to VC ≤ 21.2 V under 74 A peak impulse. Its junction temperature range spans –55°C to +175°C, supporting under-hood automotive deployment.
It delivers 1500 W peak pulse power per 10/1000 μs waveform, with low dynamic impedance enabling effective suppression of fast EFT and load-dump events. The device exhibits <1 μA leakage above 10 V and meets RoHS/halogen-free requirements per IEC 61249-2-21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1.0 mA | 14.3–15.8 V - precise avalanche onset ensures predictable clamping start point for 12 V system rails |
| VWM | 12.8 V - maximum continuous reverse operating voltage, safely above 12 V nominal supply |
| VC @ IPP = 74 A | ≤21.2 V - peak clamped voltage during full-rated surge, limiting downstream IC stress |
| PPK | 1500 W - energy-handling capacity for severe automotive load-dump and ISO 7637-2 transients |
| Response Time | <1.0 ps - sub-picosecond turn-on enables protection against nanosecond-scale ESD/EFT events |
| Junction Temp Range | –55°C to +175°C - supports operation in engine compartment and industrial control enclosures |
| Leakage Current | <1 μA @ VWM - negligible standby power loss and minimal impact on high-impedance sensing circuits |
Pinout & Package
Package: DO-201 axial lead package with cathode band marking; leads are pure tin plated, solderable per J-STD-002, UL 94V-0 molded compound, and JESD 201 Class 2 whisker compliant; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage return path; defines unidirectional conduction direction |
| Cathode | Protected line input | Connected to power rail (e.g., 12 V battery line); avalanche occurs between cathode and anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use per stress test requirements including temperature cycling, HTRB, and ESD |
| ISO 7637-2 compliance | Rated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) |
| Low dynamic impedance | Enables tight clamping window (VC – VBR = ~6.9 V), minimizing voltage overshoot during surge |
| Halogen-free construction | Meets IEC 61249-2-21, supporting environmentally compliant manufacturing and end-of-life processing |
| Fast response time | <1.0 ps turn-on ensures protection against ESD events faster than typical silicon diode recovery |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input Stage |
|---|---|
Use Scenario: 12 V battery line in passenger vehicle ECUs exposed to load-dump transients up to 120 V and 400 ms duration. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery+ and chassis ground, clamping surges before they reach PMICs and microcontrollers. Use Value: Limits peak voltage to ≤21.2 V during 1500 W transients, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic. | Use Scenario: 24 V DC input to programmable logic controller (PLC) power supply subjected to inductive switching noise from solenoid drivers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main DC bus, coordinated with upstream fuse and downstream LC filter. Use Value: Absorbs 10/1000 μs pulses up to 74 A without degradation, maintaining system uptime in factory automation environments. |
| LED Lighting Driver Protection | Telecom Power Interface |
Use Scenario: Constant-current LED driver board powered from 12 V supply in commercial lighting fixture, subject to wiring-induced transients. IC Role / Device Role / Timing Role: Standoff protector on input rail, placed ahead of buck controller IC and MOSFET switch. Use Value: Prevents false triggering or overvoltage failure of current-sense amplifier and gate driver due to <21.2 V clamped transients. | Use Scenario: 48 V DC power interface of remote radio head (RRH) in 5G base station, exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: First-stage coarse clamp before active regulation and hot-swap controller. Use Value: Handles initial 1500 W surge energy while allowing secondary TVS or MOV to manage residual energy, extending overall system surge lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ15A | Same DO-214AC (SMA) package; lower PPK = 400 W; VC = 24.4 V @ 16.4 A | Not rated for ISO 7637-2; suitable only for low-energy ESD/EFT, not automotive load-dump | Select when space-constrained layout requires surface-mount and surge energy is ≤400 W |
| ON Semiconductor 1.5SMC15A | DO-214AB (SMC) package; PPK = 1500 W; VC = 24.4 V @ 61.5 A; no AEC-Q101 data published | Compatible with same PCB footprint as 1.5KE15A A0G in through-hole adapter designs; lacks automotive qualification documentation | Select for industrial applications where AEC-Q101 is not mandated and SMC thermal performance is preferred |
Compared with SMAJ15A and 1.5SMC15A, the 1.5KE15A A0G uniquely combines through-hole DO-201 robustness, full 1500 W ISO 7637-2 compliance, and documented AEC-Q101 qualification - making it the only option among the three validated for under-hood automotive deployment without derating or additional validation.
Availability
1.5KE15A A0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC power inputs, LED driver protection, and telecom DC interface applications requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE15A A0G 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 Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power management, protection, and signal conditioning devices since 1979.
The 1.5KE series was developed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and extended temperature operation up to +175°C.
FAQ
What is the polarity configuration of the 1.5KE15A A0G?
The 1.5KE15A A0G is a unidirectional TVS diode, with cathode marked by a band on the DO-201 package body. It conducts only when the cathode is at higher potential than the anode - making it suitable for DC power rail protection where polarity is fixed. Bidirectional variants (e.g., 1.5KE15CA) exist but are distinct part numbers; the "A" suffix here denotes tighter VBR tolerance, not polarity change.
Does the 1.5KE15A A0G meet AEC-Q101 requirements?
Yes, the 1.5KE15A A0G is explicitly AEC-Q101 qualified per the manufacturer's documentation. This includes passing stress tests such as high-temperature reverse bias (HTRB), temperature cycling, and electrostatic discharge (ESD) per human-body model (HBM) and machine model (MM). The "H" ordering suffix (e.g., 1.5KE15AH) also indicates AEC-Q101 qualification, but the A0G variant shares the same qualified die and process.
What is the maximum clamping voltage of the 1.5KE15A A0G under rated surge conditions?
The maximum clamping voltage VC of the 1.5KE15A A0G is 21.2 V, measured at peak pulse current IPP = 74 A using the standard 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage seen at the protected line during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Can the 1.5KE15A A0G be used in bidirectional signal line protection?
No, the 1.5KE15A A0G is strictly unidirectional and must not be used on AC or bidirectional signal lines. Its asymmetrical IV curve allows conduction only in reverse bias (cathode positive), and forward conduction would cause excessive power dissipation and failure. For bidirectional protection, select the 1.5KE15CA variant - which uses a back-to-back diode configuration and has identical VBR and VC ratings in both directions.
What packaging format does the 1.5KE15A A0G ship in?
The 1.5KE15A A0G ships in 500-piece ammo boxes, as indicated by the "A0G" suffix in the ordering code. This packaging is optimized for manual assembly, rework, and low-volume prototyping. Tape-and-reel formats (e.g., 1.5KE15AH) are available for automated SMT placement via axial lead adapters, but the A0G variant itself is supplied loose in ammo box configuration.
1.5KE15A A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 74A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE15A A0G FAQ
1.How can I place an order for 1.5KE15A A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE15A A0G 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 1.5KE15A A0G reliable?
The price and inventory of 1.5KE15A A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE15A A0G is usually 5 days.
3.What payment methods are accepted for 1.5KE15A A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE15A A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE15A A0G?
1.5KE15A A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE15A A0G 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 1.5KE15A A0G?
For technical support, including 1.5KE15A A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE15A A0G requirements.
6.How does Aetrix verify that 1.5KE15A A0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE15A A0G 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 1.5KE15A A0G meets industry standards.
7.What is the process for return or replacement of 1.5KE15A A0G?
All 1.5KE15A A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE15A A0G, 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 1.5KE15A A0G part is unused and in its original packaging.
Return procedure for 1.5KE15A A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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