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Taiwan Semiconductor Corporation 1.5KE15AHB0G
- Part No.:
- 1.5KE15AHB0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE15AHB0G.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:7,026
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Product details
Overview
1.5KE15AHB0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 15 V, working stand-off voltage 12.8 V, clamping voltage 21.2 V at 74 A peak pulse current, and AEC-Q101 qualification for automotive use. It protects power rails and I/O lines against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients in engine control units and body electronics.
For engineers reviewing the 1.5KE15AHB0G datasheet, 1.5KE15AHB0G pinout, 1.5KE15AHB0G application, or 1.5KE15AHB0G equivalent, key selection criteria include unidirectional polarity, 12.8 V working voltage margin, 21.2 V clamping performance under 10/1000 µs surge, and AEC-Q101 compliance for harsh-environment deployment.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds its breakdown threshold (14.3–15.8 V at 1 mA), it avalanches to divert surge current away from downstream circuitry. Its low dynamic impedance ensures stable clamping during fast-rising transients.
Designed for unidirectional DC protection, it features pure tin-plated leads compliant with J-STD-002, meets UL 94V-0 flammability rating, and supports junction temperatures from –55 °C to +175 °C - enabling placement near high-power components without thermal derating concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 15 V - defines rated standoff level before avalanche conduction begins |
| Breakdown Voltage VBR | 14.3–15.8 V @ 1 mA - verified conduction onset range critical for precise overvoltage triggering |
| Working Stand-off Voltage VWM | 12.8 V - maximum continuous DC or RMS voltage the device blocks without leakage exceeding 1 µA |
| Peak Pulse Power PPK | 1500 W @ 10/1000 µs - energy-handling capacity sufficient for ISO 7637-2 automotive load-dump suppression |
| Clamping Voltage VC | 21.2 V @ 74 A - maximum voltage seen by protected circuit during full-rated surge event |
| Junction Temperature Range | –55 °C to +175 °C - enables operation in under-hood automotive environments and industrial motor drives |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
Pinout & Package
Package: DO-201 axial leaded plastic package with cathode band marking; case meets UL 94V-0; weight ≈ 0.090 g; terminals are pure tin plated per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-side reference in unidirectional clamp configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 12 V rail); marked with band on DO-201 body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, lighting, and infotainment systems |
| 1500 W surge capability | Handles ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 2b (battery disconnect) without failure |
| Clamping voltage ≤21.2 V | Ensures protected ICs (e.g., CAN transceivers, microcontrollers) remain below absolute maximum ratings during surge |
| Leakage current <1 µA @ 12.8 V | Minimizes standby power loss in always-on automotive modules such as telematics and ADAS sensors |
| Fast response time <1 ps | Activates before transient edge propagates into sensitive analog or digital circuitry |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protection of 12 V supply rail against load dump and alternator ripple in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at power entry point to clamp transients before reaching MCU and driver ICs. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic supplies and CAN FD transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding 24 V digital input channels from field-wiring induced surges in factory automation controllers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on optocoupler input side, upstream of series current-limiting resistor. Use Value: Maintains signal integrity and prevents false triggering during 1 kV/µs fast transients per IEC 61000-4-4 Level 4. |
| LED Headlamp Driver Circuit | Telecom Power Supply Front-End |
Use Scenario: Transient suppression on constant-current LED driver output in adaptive front-lighting systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed across LED string to absorb inductive kickback from buck converter switching. Use Value: Limits voltage overshoot to <22 V, protecting GaN FETs and current-sense amplifiers rated for 25 V max. |
Use Scenario: Secondary-side DC bus protection in 48 V telecom rectifier modules exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Clamping device on +48 V output rail, coordinated with upstream MOV and fuse. Use Value: Provides precise 21.2 V clamping to avoid overvoltage stress on PMICs and hot-swap controllers with 24 V input tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A | DO-214AA package; 600 W rating; lower clamping voltage (24.4 V @ 24.5 A); no AEC-Q101 certification | Preferred for space-constrained PCBs where 1500 W surge is not required; unsuitable for automotive under-hood use | Select SMBJ15A only for cost-sensitive consumer or industrial designs with lower surge exposure. |
| 1.5SMC15A | DO-214AB package; same 1500 W rating; clamping voltage 24.4 V @ 61.5 A; RoHS-compliant but AEC-Q101 not specified | Used in industrial power supplies and medical equipment where automotive qualification is unnecessary | Choose 1.5SMC15A when board layout allows SMC footprint and AEC-Q101 is not mandated. |
Compared with SMBJ15A and 1.5SMC15A, the 1.5KE15AHB0G delivers higher surge robustness in axial DO-201 form factor and certified automotive reliability - making it the sole option among the three qualified for engine bay deployment per AEC-Q101.
Availability
1.5KE15AHB0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input protection, and LED driver transient suppression requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE15AHB0G 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global distribution and AEC-Q101 validation capabilities.
The 1.5KE series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing rugged packaging, tight parameter tolerances, and standardized ISO 7637-2 compliance.
FAQ
What does the 'H' suffix in 1.5KE15AHB0G indicate?
The 'H' suffix in 1.5KE15AHB0G denotes AEC-Q101 qualification - confirming that this specific 1.5KE15AHB0G unit has passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per automotive reliability standards. This distinguishes it from non-H variants like 1.5KE15A, which lack formal automotive certification.
Is 1.5KE15AHB0G unidirectional or bidirectional?
1.5KE15AHB0G is a unidirectional TVS diode, designed to protect DC circuits with defined polarity. Its cathode band marks the terminal connected to the protected line; it conducts only during reverse overvoltage events. Bidirectional variants in the same family carry 'CA' suffixes (e.g., 1.5KE15CA), which are not applicable to 1.5KE15AHB0G.
What is the maximum clamping voltage for 1.5KE15AHB0G under rated surge conditions?
The maximum clamping voltage for 1.5KE15AHB0G is 21.2 V at 74 A peak pulse current (10/1000 µs waveform). This value is measured per JEDEC test conditions and guarantees that any downstream component seeing this clamped voltage will remain within safe operating limits during full-rated transient events.
Can 1.5KE15AHB0G be used in place of 1.5KE15A in an existing design?
Yes - 1.5KE15AHB0G is a direct functional and pin-compatible replacement for 1.5KE15A, sharing identical electrical parameters, DO-201 package, and pinout. The addition of 'H' and 'B0G' indicates AEC-Q101 qualification and green molding compound, respectively, with no impact on circuit operation or layout.
What packaging options are available for 1.5KE15AHB0G?
1.5KE15AHB0G is supplied in 500-piece ammo boxes (as indicated by the 'A0G' suffix). It is not offered in tape-and-reel format - unlike non-AEC-Q101 variants such as 1.5KE15AH, which use 'H' alone for tape-and-reel. The 'B0G' denotes halogen-free, RoHS-compliant green compound per IEC 61249-2-21.
1.5KE15AHB0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Bulk
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE15AHB0G FAQ
1.How can I place an order for 1.5KE15AHB0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE15AHB0G 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 1.5KE15AHB0G reliable?
The price and inventory of 1.5KE15AHB0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE15AHB0G is usually 5 days.
3.What payment methods are accepted for 1.5KE15AHB0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE15AHB0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE15AHB0G?
1.5KE15AHB0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE15AHB0G 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 1.5KE15AHB0G?
For technical support, including 1.5KE15AHB0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE15AHB0G requirements.
6.How does Aetrix verify that 1.5KE15AHB0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE15AHB0G 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 1.5KE15AHB0G meets industry standards.
7.What is the process for return or replacement of 1.5KE15AHB0G?
All 1.5KE15AHB0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE15AHB0G, 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 1.5KE15AHB0G part is unused and in its original packaging.
Return procedure for 1.5KE15AHB0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE15AHB0G Tags
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Diodes Incorporated
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