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Taiwan Semiconductor Corporation 1.5KE150A R0G
- Part No.:
- 1.5KE150A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150A R0G.pdf
- Description:
- TVS DIODE 128VWM 207VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:2,093
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Product details
Overview
1.5KE150A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 150V, clamping voltage 207V at 7.6A peak pulse current, and working stand-off voltage 128V. It delivers fast response (<1.0ps), low dynamic impedance, and AEC-Q101 qualification for automotive-grade surge protection in power rails and I/O lines.
For engineers reviewing the 1.5KE150A R0G datasheet, 1.5KE150A R0G pinout, 1.5KE150A R0G application, or 1.5KE150A R0G equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, unidirectional polarity marking, thermal derating above 25°C, and compatibility with lead-free reflow per J-STD-002.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages above its 143–158V breakdown range (tested at 1mA), limiting downstream voltage to ≤207V during 10/1000μs surges up to 7.6A. Its junction temperature rating of −55°C to +175°C supports under-hood automotive deployment.
Designed for single-polarity DC line protection, it exhibits <1μA leakage at 128V (VWM), 0.108%/°C VBR temperature coefficient, and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements - all verified per JEDEC DO-201 mechanical and electrical standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=1mA | 143–158 V - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 128 V - maximum continuous reverse operating voltage before leakage exceeds 1μA |
| VC @ IPP=7.6A | 207 V - clamped voltage during 10/1000μs surge, determining protected circuit's max stress level |
| PPK | 1500 W - peak pulse power handling capability under standardized 1ms waveform |
| Junction Temp Range | −55°C to +175°C - enables operation in engine control units and industrial power supplies |
| Package | DO-201 - industry-standard axial-leaded package with tin-plated leads, UL 94V-0 molding |
| Leakage Current | <1 μA @ 128 V - ensures minimal standby power loss in always-on systems |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; conducts during reverse-biased transients |
| Cathode | Protected line input | Connected to supply rail or signal line; blocks normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including temperature cycling and HTRB |
| 10/1000μs surge rating | 1500W peak power handling per ISO 7637-2 Pulse 5a, enabling robust ESD and load-dump protection |
| Clamping ratio (VC/VBR) | ~1.45 - tight ratio ensures minimal overvoltage margin between trigger and clamp levels |
| Response time | <1.0 ps - sub-picosecond turn-on guarantees protection before sensitive ICs experience damage |
| RoHS & halogen-free | Compliant with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V/24V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to shunt surge energy before reaching LDOs and microcontrollers. Use Value: Clamps 1500W transients to ≤207V, preventing latch-up or gate oxide rupture in downstream 3.3V/5V logic. | Use Scenario: Analog sensor outputs (e.g., pressure, temperature) routed across noisy motor drive zones. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb EFT bursts (IEC 61000-4-4) and contact ESD (IEC 61000-4-2). Use Value: Limits transient-induced offset errors and ADC saturation by holding line voltage within ±128V working range. |
| LED Driver Input Protection | Telecom Power Supply Clamp |
Use Scenario: Constant-current LED drivers powered from switched-mode supplies subject to inductive kickback. IC Role / Device Role / Timing Role: TVS on input capacitor rail to absorb flyback spikes from MOSFET switching nodes. Use Value: Prevents overvoltage failure of electrolytic input capacitors and driver ICs by clamping to 207V with <1μA leakage at 128V. | Use Scenario: -48V telecom rectifier outputs feeding backplane distribution with lightning-induced surges. IC Role / Device Role / Timing Role: Primary-stage unidirectional clamp on DC output bus prior to DC/DC converters. Use Value: Sustains 1500W surge without degradation, maintaining system uptime during 10/1000μs lightning transients per GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ150A | Same DO-214AC (SMA) package; 1500W rating; VBR = 143–158V; VC = 243V @ 6.2A - higher clamping voltage than 1.5KE150A R0G's 207V @ 7.6A | Higher VC reduces margin for 150V-rated downstream components; lower IPP limits energy absorption in long-tail transients | Select when SMA footprint is required and clamping margin allows ≥243V stress |
| ON Semiconductor 1.5SMC150A | DO-214AB (SMC) package; identical VBR, VWM, VC; rated for 1500W but with 7.5A IPP - slightly lower surge current vs. 1.5KE150A R0G's 7.6A | SMC offers higher thermal mass than DO-201 but requires larger PCB area; same automotive suitability via AEC-Q101 | Select when board space permits larger SMC package and thermal performance outweighs axial-lead constraints |
Compared with SMAJ150A and 1.5SMC150A, the 1.5KE150A R0G provides the lowest clamping voltage (207V) and highest peak pulse current (7.6A) in its class, making it optimal for designs where protected ICs have tight absolute maximum ratings and surge waveforms exceed 10/1000μs duration.
Availability
1.5KE150A R0G is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and LED driver input surge suppression requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE150A R0G 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, serving automotive, industrial, and consumer markets since 1979.
The 1.5KE series was developed specifically for high-energy transient suppression in harsh environments, emphasizing AEC-Q101 compliance, tight VBR tolerance, and robust DO-201 reliability for under-hood and factory-floor applications.
FAQ
What is the breakdown voltage range for 1.5KE150A R0G?
The 1.5KE150A R0G has a guaranteed breakdown voltage (VBR) range of 143 V to 158 V when tested at 1 mA DC current, per JEDEC standard test conditions. This range ensures consistent avalanche triggering across production lots and temperature extremes, directly supporting design margin calculations for protected circuits. The 1.5KE150A R0G maintains this specification across its full operating junction temperature range of −55°C to +175°C.
Does 1.5KE150A R0G meet automotive qualification standards?
Yes, the 1.5KE150A R0G is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress testing (uHAST). This qualification confirms suitability for automotive powertrain, body control, and ADAS modules where reliability under thermal and electrical stress is mandatory. The 1.5KE150A R0G data sheet explicitly lists AEC-Q101 compliance in its features section.
What is the clamping voltage of 1.5KE150A R0G at its rated peak pulse current?
The 1.5KE150A R0G clamps to a maximum of 207 V when subjected to its rated 7.6 A peak pulse current (IPP) under the standard 10/1000 μs double-exponential waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The 1.5KE150A R0G achieves this clamping performance while maintaining low dynamic impedance and sub-1.0 ps response time.
Is 1.5KE150A R0G unidirectional or bidirectional?
The 1.5KE150A R0G is a unidirectional transient voltage suppressor, indicated by the "A" suffix and cathode band marking per DO-201 mechanical drawing. It functions as a reverse-biased Zener-like device, conducting only when the cathode-to-anode voltage exceeds its 143–158 V breakdown range. Unlike bidirectional variants (e.g., 1.5KE150CA), the 1.5KE150A R0G does not conduct in forward bias beyond typical diode drop (~3.5 V), making it ideal for DC rail protection.
What packaging and plating does 1.5KE150A R0G use?
The 1.5KE150A R0G uses the DO-201 axial-leaded package with pure tin-plated leads, compliant with J-STD-002 for solderability and JESD201 Class 2 for whisker resistance. Its epoxy molding compound meets UL 94V-0 flammability rating, and the device is supplied in tape-and-reel (1250 pcs) or ammo box (500 pcs) formats. The "R0G" suffix denotes green compound and RoHS-compliant finish, confirmed in TSC's ordering information table.
1.5KE150A R0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.6A
- 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
1.5KE150A R0G FAQ
1.How can I place an order for 1.5KE150A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150A R0G 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 1.5KE150A R0G reliable?
The price and inventory of 1.5KE150A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE150A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150A R0G?
1.5KE150A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150A R0G 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 1.5KE150A R0G?
For technical support, including 1.5KE150A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150A R0G requirements.
6.How does Aetrix verify that 1.5KE150A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE150A R0G 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 1.5KE150A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE150A R0G?
All 1.5KE150A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150A R0G, 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 1.5KE150A R0G part is unused and in its original packaging.
Return procedure for 1.5KE150A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150A R0G Tags
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