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Vishay General Semiconductor - Diodes Division 1.5KE200CAHE3/51
- Part No.:
- 1.5KE200CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE200CAHE3/51.pdf
- Description:
- TVS DIODE 171VWM 274VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,728
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Product details
Overview
1.5KE200CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in AC signal lines and power rails. It delivers 1500 W peak pulse power (10/1000 µs), clamps at 328 V maximum under 5.5 A peak pulse current, and features a 171 V stand-off voltage with ±5% breakdown tolerance (190–210 V). It is AEC-Q101 qualified and used to protect MOSFETs, sensor interfaces, and telecom line cards against lightning-induced transients.
For engineers reviewing the 1.5KE200CAHE3/51 datasheet, 1.5KE200CAHE3/51 pinout, 1.5KE200CAHE3/51 application, or 1.5KE200CAHE3/51 equivalent, this page provides verified electrical parameters, bi-directional clamping behavior, thermal derating curves, RoHS-compliant HE3 packaging, and AEC-Q101 qualification status - all critical for automotive-grade transient suppression design.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with identical breakdown (VBR = 190–210 V), clamping (VC ≤ 328 V at IPPM = 5.5 A), and leakage (<1 μA at VWM = 171 V) characteristics in forward and reverse directions. Its glass-passivated junction enables sub-nanosecond response time and low incremental surge resistance.
Rated for 175 °C maximum junction temperature and 75 °C/W junction-to-ambient thermal resistance, it supports operation in harsh environments when mounted on PCBs with adequate copper area. The device is not polarity-marked and requires no orientation during placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W (10/1000 µs waveform); sustains single lightning surges without degradation |
| Stand-off Voltage VWM | 171 V (max); ensures no conduction during normal 120/240 VAC line operation |
| Breakdown Voltage VBR | 190–210 V at 1 mA; tight ±5% tolerance enables predictable clamping threshold |
| Clamping Voltage VC | ≤328 V at 5.5 A IPPM; limits downstream voltage stress to safe levels for 200 V-rated ICs |
| Leakage Current ID | <1 μA at 171 V; negligible standby power loss in always-on systems |
| Operating Temperature | −55 °C to +175 °C; validated for under-hood automotive and industrial power supply use |
| AEC-Q101 Qualified | Yes (HE3 suffix); certified for automotive electronics per stress test requirements |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body, matte tin-plated leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length. Bi-directional configuration has no polarity marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Conducts bidirectionally during overvoltage events; no DC bias dependency |
| Case / Body | Thermal and mechanical interface | Non-conductive epoxy housing; thermal path relies on lead conduction (RθJL = 15.4 °C/W) |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under repeated surge stress |
| 1500 W peak pulse rating | Meets IEC 61000-4-5 Level 4 (4 kV line-to-line) surge immunity requirements |
| AEC-Q101 qualification | Validates performance across temperature cycling, HTRB, and ESD tests for automotive ECUs |
| Bi-directional symmetry | Eliminates need for polarity-aware layout; simplifies protection of AC-coupled or floating signals |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and JEDEC MSL-1 handling standards |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus transceivers and LIN nodes from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping element placed across power rail input before LDO regulator. Use Value: Clamps transients to ≤328 V within <1 ns, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input modules. IC Role / Device Role / Timing Role: Parallel-connected TVS on 4–20 mA loop or 0–10 V output line. Use Value: Absorbs induced surges from nearby motor switching without affecting 16-bit DAC accuracy or offset drift. |
| Telecom Line Card Surge Protection | AC Mains-Fed Consumer Power Supply |
Use Scenario: Secondary protection on POTS or xDSL line interface circuits exposed to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Bi-directional clamp between tip/ring and ground, downstream of gas discharge tube (GDT). Use Value: Provides low-clamp backup after GDT fires, limiting residual voltage to protect SLIC and codec ICs. |
Use Scenario: Overvoltage suppression on primary-side rectified DC bus in offline SMPS for smart home appliances. IC Role / Device Role / Timing Role: Across bulk capacitor to suppress differential-mode surges from AC mains transients. Use Value: Withstands 1500 W surges without parametric shift, maintaining safety isolation and preventing X-capacitor overvoltage failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | Lower peak power (600 W), smaller SMB package (vs. DO-201AB), higher VC/VBR ratio | Better suited for space-constrained PCBs where 600 W suffices; not AEC-Q101 qualified | Select when board area is limited and surge threat level is IEC 61000-4-5 Level 2–3 only |
| 1.5KE200A | Uni-directional version; same VBR, VC, and PPPM but requires polarity-aware placement | Applicable only in DC-biased rails where reverse conduction must be blocked | Choose only if circuit topology mandates unidirectional blocking (e.g., battery input protection) |
Compared with SMBJ200CA and 1.5KE200A, the 1.5KE200CAHE3/51 uniquely combines AEC-Q101 qualification, bi-directional symmetry, and full 1500 W capability in the robust DO-201AB package - making it the preferred choice for automotive and industrial AC-coupled or floating-rail protection where reliability and layout simplicity are critical.
Availability
1.5KE200CAHE3/51 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC analog I/O modules, telecom line cards, and AC-powered consumer electronics requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE200CAHE3/51 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing AEC-Q101 compliance, repeatable clamping, and robust thermal performance in legacy through-hole packages.
FAQ
What is the clamping voltage of the 1.5KE200CAHE3/51 at its rated peak pulse current?
The 1.5KE200CAHE3/51 clamps to a maximum of 328 V when subjected to its rated peak pulse current of 5.5 A (10/1000 µs waveform). This value is measured per JEDEC standard test conditions and reflects worst-case voltage seen by downstream components during surge events. The actual clamping voltage of the 1.5KE200CAHE3/51 may be lower at reduced current levels, as shown in Fig. 9 of the Vishay datasheet 88301.
Is the 1.5KE200CAHE3/51 suitable for automotive applications?
Yes, the 1.5KE200CAHE3/51 is AEC-Q101 qualified (HE3 suffix), confirming its suitability for automotive applications including engine control units, body electronics, and infotainment power supplies. Its −55 °C to +175 °C operating range, robust surge handling, and validated reliability testing meet stringent automotive environmental requirements. The 1.5KE200CAHE3/51 is explicitly listed in Vishay's AEC-Q101 qualified product list for the 1.5KE family.
How does the bi-directional nature of the 1.5KE200CAHE3/51 affect PCB layout?
The bi-directional nature of the 1.5KE200CAHE3/51 eliminates polarity marking - both terminals are functionally identical, allowing placement without orientation constraints. This simplifies layout for AC-coupled signals, transformer-isolated interfaces, or floating power rails. Unlike uni-directional variants, the 1.5KE200CAHE3/51 requires no cathode band alignment, reducing assembly errors and enabling automated placement without vision-based orientation checks.
What is the thermal resistance of the 1.5KE200CAHE3/51, and how does it impact power dissipation?
The 1.5KE200CAHE3/51 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W and junction-to-ambient resistance (RθJA) of 75 °C/W. Since it is rated for 6.5 W continuous power dissipation at TL = 75 °C, effective heat sinking via PCB copper pour or short lead traces is essential to avoid exceeding 175 °C junction temperature during sustained overload. The 1.5KE200CAHE3/51 does not require a heatsink for transient-only operation but benefits from thermal relief in high-ambient environments.
Does the 1.5KE200CAHE3/51 have any special soldering requirements?
Yes, the 1.5KE200CAHE3/51 supports solder dip up to 275 °C for 10 seconds (per JESD 22-B106) and meets J-STD-002 and JESD 22-B102 for solderability. Its HE3 suffix indicates compliance with JESD 201 Class 2 whisker resistance. Reflow profiles must stay within peak temperature limits for DO-201AB packages; excessive dwell time above 230 °C risks epoxy degradation. The 1.5KE200CAHE3/51 should not be subjected to wave soldering without thermal mass management.
1.5KE200CAHE3/51 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:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE200CAHE3/51 FAQ
1.How can I place an order for 1.5KE200CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE200CAHE3/51 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 1.5KE200CAHE3/51 reliable?
The price and inventory of 1.5KE200CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE200CAHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE200CAHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE200CAHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE200CAHE3/51?
1.5KE200CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE200CAHE3/51 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 1.5KE200CAHE3/51?
For technical support, including 1.5KE200CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE200CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE200CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE200CAHE3/51 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 1.5KE200CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE200CAHE3/51?
All 1.5KE200CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE200CAHE3/51, 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 1.5KE200CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE200CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE200CAHE3/51 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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