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Taiwan Semiconductor Corporation 1.5KE150
- Part No.:
- 1.5KE150
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150.pdf
- Description:
- 1500W, 150V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,941
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Product details
Overview
1.5KE150 from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 150V, clamping voltage 215V at 7.3A peak pulse current, and working stand-off voltage 121V. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE150 datasheet, 1.5KE150 pinout, 1.5KE150 application, or 1.5KE150 equivalent, this page delivers verified electrical specs, mechanical data, AEC-Q101 qualification status, clamping performance under 10/1000μs surge, and real-world use cases in automotive load-dump and inductive switching protection.
Technical Context
The 1.5KE150 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 135–165V breakdown range (tested at 1mA). Its low dynamic impedance ensures rapid clamping response-typically <1.0ps from 0V to VBR-and limits transient energy dissipation across sensitive downstream circuitry.
It sustains 1500W non-repetitive peak pulse power per 10/1000μs waveform, derates linearly above 25°C ambient, and maintains junction temperature within -55°C to +175°C. The device meets ISO 7637-2 immunity requirements for automotive electronics and exhibits <1μA leakage above 10V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 135–165V - defines minimum and maximum voltage at which avalanche conduction begins; critical for margin-based system-level overvoltage design |
| VWM | 121V - maximum continuous reverse operating voltage; must exceed normal circuit rail voltage to prevent leakage-induced power loss |
| VC @ IPP = 7.3A | 215V - clamped voltage during 10/1000μs surge; determines maximum stress imposed on protected ICs or MOSFETs |
| PPK | 1500W - peak pulse power handling capability; enables robust protection against high-energy automotive load-dump events |
| IPP | 7.3A - peak impulse current at rated clamping voltage; used to size PCB trace width and verify thermal survivability |
| TJMAX | +175°C - maximum junction temperature; supports operation in under-hood automotive environments without derating |
| Package | DO-201 - axial-leaded through-hole package with tin-plated leads, UL 94V-0 molding, and 0.090g mass; compatible with standard wave-solder processes |
Pinout & Package
DO-201 package: axial-leaded, cylindrical glass-passivated body with cathode band marking. Cathode terminal is marked by a colored band; anode is unmarked end. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR; polarity-sensitive installation required |
| Anode (unmarked end) | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| 1500W 10/1000μs surge rating | Withstands single-event load-dump surges up to 1500W without degradation-critical for 12V/24V vehicle power systems |
| Clamping voltage ≤215V at 7.3A | Ensures protected components see no more than 215V during worst-case transient-enables safe use with 200V-rated MOSFETs or gate drivers |
| Leakage current <1μA @ >10V | Minimizes standby power loss and avoids false triggering in high-impedance sensing or battery-backed circuits |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching noise) immunity requirements |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Inputs |
|---|---|
|
Use Scenario: Protecting 12V/24V supply lines in engine control units (ECUs) and body control modules (BCMs) against load-dump transients up to 120V. IC Role / Device Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges before they reach DC-DC converters or microcontrollers. Use Value: Limits peak voltage to 215V during 1500W transients, preventing latch-up or permanent damage to 200V-rated power management ICs. |
Use Scenario: Safeguarding input terminals of variable-frequency drives (VFDs) and servo amplifiers from inductive kickback during contactor switching. IC Role / Device Role: Transient suppression element mounted directly at motor drive input connector to absorb energy from long cable runs and relay bounce. Use Value: Clamps 10/1000μs spikes to ≤215V, enabling use of lower-cost 250V input rectifiers while maintaining IEC 61800-3 EMC compliance. |
| LED Lighting Driver Inputs | Telecom Power Interface |
|
Use Scenario: Shielding constant-current LED drivers in streetlight and commercial lighting from lightning-induced surges on AC mains or 24V DC distribution lines. IC Role / Device Role: Primary-level TVS placed upstream of bridge rectifier and bulk capacitor to divert surge energy before it stresses electrolytic capacitors or controller ICs. Use Value: Withstands ≥1000 surges at rated power, extending driver lifetime in outdoor deployments where surge exposure is frequent and unpredictable. |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras, wireless access points) from fast transients coupled onto Ethernet cables via EFT or indirect lightning. IC Role / Device Role: Secondary-side TVS on DC input rail after PoE interface IC, providing last-line defense against residual surges that bypass primary protection. Use Value: Fast <1.0ps response time ensures clamping initiates before 5V/12V LDOs or PHY ICs experience overstress-critical for IEEE 802.3af/at compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Surface-mount SMB package (vs. DO-201 through-hole); same 150V VBR, 219V VC @ 6.8A; 600W rating | Lower peak power (600W vs. 1500W); suitable for space-constrained PCBs but not for full automotive load-dump duty | Select SMBJ150A only when board area is limited and surge energy is below 600W; verify thermal pad layout per JEDEC Std. 51-3 |
| 1N6299A | AEC-Q101 qualified version of 1.5KE150; identical VBR (143–158V), VC = 207V @ 7.6A; same DO-201 package | Same application scope but certified for automotive production; includes extended reliability test data and PPAP documentation support | Choose 1N6299A for Tier 1 automotive programs requiring AEC-Q101 evidence; 1.5KE150 remains valid for industrial or aftermarket use |
Compared with SMBJ150A, the 1.5KE150 delivers 2.5× higher surge power handling and through-hole mechanical robustness for high-vibration environments; compared with 1N6299A, it lacks formal AEC-Q101 certification but shares identical electrical performance and package-making it ideal for cost-sensitive industrial designs where qualification overhead is unnecessary.
Availability
1.5KE150 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive inputs, LED lighting surge resilience, and telecom power interface hardening requiring stable component supply and long-term manufacturability.
Supply support for 1.5KE150 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 TVS diodes, rectifiers, and power devices since 1979.
The 1.5KE series was engineered specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing ruggedness, repeatable clamping, and compliance with ISO 7637-2 and AEC-Q101 standards.
FAQ
What is the breakdown voltage tolerance for 1.5KE150?
The 1.5KE150 has a guaranteed breakdown voltage range of 135V to 165V when tested at 1mA DC current per JEDEC standard. This ±10% tolerance ensures consistent clamping behavior across production lots and allows designers to set appropriate safety margins relative to system operating voltage.
Is 1.5KE150 suitable for bidirectional transient protection?
No, the 1.5KE150 is a unidirectional TVS diode and must be used with correct polarity-cathode connected to the protected line, anode to ground. For bidirectional protection, select the 1.5KE150CA variant, which provides symmetrical clamping in both directions and uses a center-tap configuration.
What is the maximum clamping voltage of 1.5KE150 under surge conditions?
The 1.5KE150 clamps to a maximum of 215V when subjected to a 10/1000μs surge waveform with peak current of 7.3A. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by downstream components during worst-case transient events.
Does 1.5KE150 meet automotive qualification standards?
The base 1.5KE150 is not AEC-Q101 qualified; however, its variant 1N6299A is fully AEC-Q101 certified. Both share identical electrical parameters and DO-201 packaging, but only 1N6299A includes the extended reliability test reports required for automotive production programs.
How does thermal derating affect 1.5KE150's surge capability above 25°C?
1.5KE150's 1500W peak pulse power rating is specified at 25°C ambient. Above this temperature, power capability decreases linearly per the Pulse Derating Curve in the datasheet-e.g., at 75°C ambient, maximum PPK drops to ~1000W, requiring careful thermal design in enclosed or high-temperature enclosures.
1.5KE150 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 121V
- Voltage - Breakdown (Min):
- 135V
- Voltage - Clamping (Max) @ Ipp:
- 215V
- Current - Peak Pulse (10/1000µs):
- 7.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE150 FAQ
1.How can I place an order for 1.5KE150 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150 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 1.5KE150 reliable?
The price and inventory of 1.5KE150 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150 is usually 5 days.
3.What payment methods are accepted for 1.5KE150?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150?
1.5KE150 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150 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 1.5KE150?
For technical support, including 1.5KE150 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150 requirements.
6.How does Aetrix verify that 1.5KE150 is sourced from the original manufacturer or authorized distributors?
All 1.5KE150 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 1.5KE150 meets industry standards.
7.What is the process for return or replacement of 1.5KE150?
All 1.5KE150 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150, 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 1.5KE150 part is unused and in its original packaging.
Return procedure for 1.5KE150:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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