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Taiwan Semiconductor Corporation 1V5KE11A
- Part No.:
- 1V5KE11A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE11A.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:2,973
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Product details
Overview
1V5KE11A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 10.5V clamping voltage at 96.2A peak pulse current, 10.5–11.6V breakdown voltage at 1mA test current, and 9.4V reverse stand-off voltage. It protects power rails and I/O lines against ESD, lightning-induced surges, and inductive switching transients in industrial control and automotive subsystems.
For engineers reviewing the 1V5KE11A datasheet, 1V5KE11A pinout, 1V5KE11A application, or 1V5KE11A equivalent, key selection criteria include clamping performance under 10/1000μs surge, unidirectional polarity marking, DO-201 mechanical compatibility, and leakage current <1μA above 10V.
Technical Context
The 1V5KE11A operates as a silicon avalanche diode with glass-passivated junction, delivering precise voltage clamping during fast-rising transients (response time <1ps). Its unidirectional architecture enables cathode-anode polarity alignment for DC-biased protection paths.
Designed for single-pulse energy absorption per JEDEC JESD22-A115, it sustains 1500W peak pulse power at 1ms, with thermal derating to 5W continuous power at 75°C ambient and junction temperature range of –55°C to +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (1ms) | 1500W - supports IEC 61000-4-5 Level 4 surge immunity (4kV line-to-ground) |
| Clamping Voltage (VC) | 15.6V at 96.2A - limits downstream IC voltage stress during worst-case surge |
| Breakdown Voltage (VBR) | 10.5–11.6V @ 1mA - ensures reliable conduction onset above normal operating voltage |
| Reverse Stand-off Voltage (VRWM) | 9.4V - defines maximum continuous DC bias before leakage exceeds 5μA |
| Leakage Current (IR) | <1μA @ 10V - avoids signal integrity degradation in high-impedance sensing circuits |
| Junction Temperature Range | –55°C to +175°C - enables deployment in under-hood automotive and industrial motor drive environments |
Pinout & Package
Package: DO-201 axial lead package with pure tin-plated leads, UL 94V-0 molding compound, and cathode band marking for unidirectional polarity identification. Weight: 0.090g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during clamping | Connected to protected line; conducts surge current to ground when VAK > VBR |
| Cathode | Reference terminal / polarity marker | Marked with band; ties to higher potential (e.g., VCC rail) in unidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| Low incremental surge resistance | Minimizes VC overshoot during fast 10/1000μs transients, improving clamping precision |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and environmental requirements for industrial and automotive PCB assembly |
| JEDEC-standard DO-201 outline | Enables drop-in replacement in legacy designs using 1N6267A–1N6303A family footprints |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate driver supply inputs against inductive kickback from relay coils and solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VDD and GND, clamping transients before they reach isolated DC-DC converter inputs. Use Value: 15.6V clamping prevents overvoltage damage to 12V-rated LDOs and logic-level shifters in 24V systems. | Use Scenario: ESD protection on LIN bus transceiver pins exposed to human contact in door modules and seat controllers. IC Role / Device Role / Timing Role: Low-leakage (≤1μA) unidirectional clamp shunting ±8kV HBM ESD events to chassis ground. Use Value: 9.4V VRWM allows safe operation across full LIN voltage swing (0–18V) without false triggering. |
| LED Streetlight Power Supplies | PLC Digital Input Modules |
Use Scenario: Surge suppression on AC-input rectifier outputs subjected to lightning-induced line surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-stage TVS mounted across bulk capacitor, absorbing 1500W pulses without thermal runaway. Use Value: 175°C max junction temperature supports operation inside sealed, thermally constrained outdoor enclosures. | Use Scenario: Protection of 24V DC digital input optocoupler front-ends against field-wiring transients and ground loop spikes. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, limiting input voltage to ≤15.6V during 1kV/500A surge events. Use Value: Fast response (<1ps) ensures clamping initiates before optocoupler LED forward voltage exceeds rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | 600W rating, SMB package, 17V clamping at 35.3A | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is ≤1kV |
| 1N6272A | Same manufacturer, identical DO-201 package and electrical specs; obsolete part number superseded by 1V5KE11A | No functional difference; used in legacy BOMs prior to TSC's 2012 revision | Prefer 1V5KE11A for new designs due to updated halogen-free and RoHS compliance |
Compared with SMBJ10A and 1N6272A, the 1V5KE11A delivers 2.5× higher peak pulse power in the same axial footprint, enabling robust protection in high-threat environments while maintaining backward compatibility with legacy 1N6272A layouts.
Availability
1V5KE11A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, LED streetlight power supplies, and PLC digital input modules requiring stable component supply and long-lifecycle support.
Supply support for 1V5KE11A 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 qualified product lines.
The 1V5KE series was developed for high-reliability transient suppression in harsh-environment applications, emphasizing stable clamping performance, low leakage, and mechanical ruggedness in axial DO-201 packaging.
FAQ
What is the clamping voltage of the 1V5KE11A under a 10/1000μs surge waveform?
The 1V5KE11A has a maximum clamping voltage (VC) of 15.6V at 96.2A peak pulse current under the standardized 10/1000μs double-exponential surge waveform. This value is measured per JEDEC JESD22-A115 and guarantees predictable overvoltage limiting during real-world transients such as inductive switch-off or ESD events. The 1V5KE11A maintains this clamping performance across its full operating temperature range.
Is the 1V5KE11A suitable for bidirectional signal line protection?
No, the 1V5KE11A is a unidirectional TVS diode and must be used with correct anode–cathode orientation relative to the DC bias. For bidirectional protection (e.g., AC lines or data buses), the 1V5KE11CA variant is required. The "C" suffix denotes symmetrical breakdown in both directions, whereas the 1V5KE11A only clamps in reverse-bias mode and conducts forward current like a standard diode.
What is the maximum continuous power dissipation for the 1V5KE11A at 75°C ambient?
The 1V5KE11A dissipates up to 5W continuously when mounted with 0.375-inch lead length at 75°C ambient temperature, per its absolute maximum ratings table. Derating is linear to zero watts at 175°C junction temperature. This thermal performance supports use in enclosed power supplies and motor drive heatsink proximity without forced airflow.
Does the 1V5KE11A meet RoHS and halogen-free requirements?
Yes, the 1V5KE11A is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and its pure tin-plated leads comply with J-STD-002 solderability standards. These qualifications are confirmed in Taiwan Semiconductor's D2112 datasheet revision and apply to all units shipped under current production lots.
How does the 1V5KE11A compare to the older 1N6272A part?
The 1V5KE11A is the direct successor to the 1N6272A, sharing identical electrical specifications, DO-201 package dimensions, and pinout. Key improvements include updated RoHS/halogen-free compliance, enhanced whisker resistance (JESD201 Class 2), and tighter process control. Designers may substitute 1V5KE11A for 1N6272A without layout or performance changes.
1V5KE11A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- 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-201AD
1V5KE11A FAQ
1.How can I place an order for 1V5KE11A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE11A 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 1V5KE11A reliable?
The price and inventory of 1V5KE11A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE11A is usually 5 days.
3.What payment methods are accepted for 1V5KE11A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE11A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE11A?
1V5KE11A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE11A 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 1V5KE11A?
For technical support, including 1V5KE11A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE11A requirements.
6.How does Aetrix verify that 1V5KE11A is sourced from the original manufacturer or authorized distributors?
All 1V5KE11A 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 1V5KE11A meets industry standards.
7.What is the process for return or replacement of 1V5KE11A?
All 1V5KE11A units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE11A, 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 1V5KE11A part is unused and in its original packaging.
Return procedure for 1V5KE11A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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