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Vishay General Semiconductor - Diodes Division 1.5KE200AHE3/51
- Part No.:
- 1.5KE200AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE200AHE3/51.pdf
- Description:
- TVS DIODE 171VWM 274VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,439
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Product details
Overview
1.5KE200AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 200 V standoff voltage (VWM), 210 V maximum breakdown voltage (VBR), 1500 W peak pulse power (10/1000 µs), 5.5 A peak pulse current (IPPM), and clamps transients to ≤274 V at rated surge. It is used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and automotive ECUs.
For engineers reviewing the 1.5KE200AHE3/51 datasheet, 1.5KE200AHE3/51 pinout, 1.5KE200AHE3/51 application, or 1.5KE200AHE3/51 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, RoHS-compliant HE3 suffix, and compatibility with 8.3 ms surge waveforms per JESD22-B102.
Technical Context
This TVS diode operates as a voltage-clamping device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold (VBR = 190–210 V). Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, ensuring effective suppression of lightning-induced surges and inductive switching transients.
Rated for 1500 W peak pulse power under 10/1000 µs waveform with 0.01% duty cycle, it dissipates 6.5 W continuously on an infinite heatsink at TL = 75 °C. Thermal resistance is 15.4 °C/W junction-to-lead, supporting robust thermal performance in high-reliability PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR min/max | 190 V / 210 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 274 V - Clamped voltage during 5.5 A 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 1500 W - Peak transient energy handling capability; supports IEC 61000-4-5 Level 4 surge immunity designs. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial environments. |
| IFSM | 200 A - Non-repetitive forward surge rating (8.3 ms half-sine); validates robustness against accidental polarity reversal events. |
| Package | DO-201AD (Case Style 1.5KE) - Axial-leaded through-hole package with 0.375" lead length; compatible with standard wave-solder processes. |
Pinout & Package
1.5KE200AHE3/51 uses the DO-201AD axial package (Case Style 1.5KE), with cathode indicated by a color band on one end. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; defines polarity-sensitive placement in DC circuits. |
| Cathode | Avalanche conduction node / Clamping output | Marked with band; connects to higher-potential rail or signal line; carries full surge current during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables <1 ns response time and stable VBR over lifetime, critical for protecting fast-switching MOSFET gates. |
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control modules and body electronics. |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and transportation equipment. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance-required for long-life automotive PCBs. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, reducing stress on downstream silicon. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial DC Power Supply Input |
|---|---|
Use Scenario: Protects microcontroller I/O and CAN transceiver power rails from load-dump and jump-start transients. IC Role / Device Role: Primary clamping element placed across 12 V battery input before DC-DC converter. Use Value: Limits voltage to ≤274 V during 1500 W surges, preventing latch-up or gate oxide rupture in downstream regulators and logic. |
Use Scenario: Shields AC-DC rectifier output and PFC stage from line-side surges and transformer ringing. IC Role / Device Role: Unidirectional shunt protector on +400 V DC bus in industrial SMPS designs. Use Value: Absorbs 5.5 A transient peaks without degradation, maintaining system uptime in factory automation environments. |
| Telecom Remote Radio Head (RRH) | Consumer Appliance Motor Drive Board |
Use Scenario: Safeguards Ethernet PHY power pins and RS-485 interface lines against induced lightning on outdoor cabling. IC Role / Device Role: Secondary-level TVS on 3.3 V/5 V auxiliary rails feeding baseband processors. Use Value: Clamps sub-µs ESD events to <300 V while sustaining 175 °C junction temperature in sealed enclosures. |
Use Scenario: Guards BLDC motor driver FETs and Hall-effect sensor supply lines against commutation spikes. IC Role / Device Role: Rail-to-rail clamp on 15 V gate drive supply feeding high-side N-channel MOSFETs. Use Value: Withstands 200 A forward surge (8.3 ms), surviving accidental short-circuit conditions during motor stall events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200A | Lower PPPM (600 W), smaller SMB package (surface-mount), 200 V VWM same tolerance. | Not AEC-Q101 qualified; suited for space-constrained consumer PCBs, not under-hood automotive. | Select SMBJ200A only if board area is constrained and surge level ≤600 W suffices. |
| 1.5KE200A | Same electrical specs but E3 suffix (commercial grade, no AEC-Q101); identical DO-201AD package. | Lacks automotive qualification and JESD 201 Class 2 whisker resistance; limited to industrial/commercial use. | Choose 1.5KE200A where AEC-Q101 is not required and cost optimization is prioritized. |
Compared with SMBJ200A and 1.5KE200A, the 1.5KE200AHE3/51 uniquely delivers AEC-Q101 qualification, JESD 201 Class 2 whisker resistance, and full 1500 W surge capability in a proven through-hole package-making it the only option qualified for mission-critical automotive and industrial deployments requiring long-term reliability under thermal and mechanical stress.
Availability
1.5KE200AHE3/51 is available at Aetrix Electronics and suitable for automotive engine control units, industrial DC power supplies, telecom remote radio heads, and consumer appliance motor drive boards requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE200AHE3/51 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and ruggedness.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where failure is not acceptable and surge immunity must exceed IEC and ISO standards.
FAQ
What is the clamping voltage of the 1.5KE200AHE3/51 under maximum rated surge current?
The 1.5KE200AHE3/51 clamps to a maximum of 274 V when subjected to its rated 5.5 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC test conditions and represents the upper limit of voltage seen by protected circuitry during worst-case surge events, directly enabling safe design margins for downstream components.
Is the 1.5KE200AHE3/51 suitable for automotive applications?
Yes-the 1.5KE200AHE3/51 carries AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, confirming its suitability for automotive under-hood and chassis applications. Its 175 °C maximum junction temperature and robust DO-201AD construction support deployment in engine control units, body control modules, and ADAS power domains where thermal and vibration reliability are mandatory.
How does the HE3 suffix differ from the E3 suffix in the 1.5KE200AHE3/51 part number?
The HE3 suffix on 1.5KE200AHE3/51 denotes RoHS compliance plus AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. In contrast, the E3 suffix (e.g., 1.5KE200A-E3) indicates RoHS compliance only, with commercial-grade reliability and no automotive qualification-making HE3 essential for automotive and high-reliability industrial use.
Can the 1.5KE200AHE3/51 be used in bi-directional configurations?
No-the 1.5KE200AHE3/51 is a uni-directional TVS diode, identified by the "A" suffix. Bi-directional variants use the "CA" suffix (e.g., 1.5KE200CA). Using 1.5KE200AHE3/51 in AC or floating-bus applications would result in forward conduction during negative half-cycles, causing failure. Always match polarity suffix to circuit topology.
What is the thermal resistance from junction to lead for the 1.5KE200AHE3/51?
The 1.5KE200AHE3/51 has a typical thermal resistance of 15.4 °C/W from junction to lead (RθJL), measured with 0.375" (9.5 mm) lead length. This value enables accurate thermal modeling when mounted on PCBs with copper pour or heatsinking leads, supporting reliable operation up to its 175 °C maximum junction temperature under sustained power dissipation.
1.5KE200AHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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:
- 1.5KE
1.5KE200AHE3/51 FAQ
1.How can I place an order for 1.5KE200AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE200AHE3/51 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 1.5KE200AHE3/51 reliable?
The price and inventory of 1.5KE200AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE200AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE200AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE200AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE200AHE3/51?
1.5KE200AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE200AHE3/51 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 1.5KE200AHE3/51?
For technical support, including 1.5KE200AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE200AHE3/51 requirements.
6.How does Aetrix verify that 1.5KE200AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE200AHE3/51 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 1.5KE200AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE200AHE3/51?
All 1.5KE200AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE200AHE3/51, 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 1.5KE200AHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE200AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE200AHE3/51 Tags
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