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Vishay General Semiconductor - Diodes Division 1.5KE220AHE3_B/C
- Part No.:
- 1.5KE220AHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220AHE3_B/C.pdf
- Description:
- 1.5KW,220V 5%,UNIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,184
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Product details
Overview
1.5KE220AHE3_B/C from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 209 V to 231 V breakdown voltage (VBR), 185 V maximum working voltage (VWM), 328 V clamping voltage (VC) at 4.6 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across -55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the 1.5KE220AHE3_B/C datasheet, 1.5KE220AHE3_B/C pinout, 1.5KE220AHE3_B/C application, or 1.5KE220AHE3_B/C equivalent, this part delivers verified unidirectional clamping performance with AEC-Q101 qualification, RoHS compliance, and JESD 201 Class 2 whisker resistance - critical for automotive ECU power rail hardening and industrial PLC I/O protection.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for sub-nanosecond response (<1 ns) and low incremental surge resistance. Its unidirectional polarity uses a cathode band marking and exhibits 3.5 V forward voltage at 100 A, enabling effective crowbar-style overvoltage shutdown in DC systems.
The device is rated for 1500 W peak pulse power under 10/1000 µs waveform with 0.01 % duty cycle, and derates linearly above 25 °C ambient per Fig. 2 - supporting reliable operation in thermally constrained enclosures. Thermal resistance from junction to lead is 15.4 °C/W, confirming suitability for lead-mounted PCB designs without heatsinks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V to 231 V - ensures reliable triggering above normal 185 V DC rail, avoiding false clamping during transients |
| VWM | 185 V - maximum continuous reverse voltage before leakage exceeds 1 µA, matching 150–200 V industrial DC bus levels |
| VC @ IPPM | 328 V at 4.6 A - limits downstream voltage stress to safe levels for 300 V-rated MOSFETs and gate drivers |
| PPPM | 1500 W (10/1000 µs) - handles lightning-induced surges per IEC 61000-4-5 Level 4 (4 kV) on 2 Ω source impedance |
| TJ max. | +175 °C - supports operation in engine bay or industrial motor drive environments without thermal shutdown |
| Qualification | AEC-Q101 qualified - validated for automotive power electronics including body control modules and battery management inputs |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.042" (1.07 mm) lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage return path; enables unidirectional clamping from cathode to anode |
| Cathode | Protected line input | Connected to DC rail or signal line; absorbs positive transients by conducting to anode when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling in automotive under-hood applications |
| 1500 W peak pulse rating | Withstands 4 kV IEC 61000-4-5 surge events on 50 Ω/42 Ω coupling networks without degradation |
| AEC-Q101 qualification | Validated for 1000-hour HTOL, temperature cycling (-40 °C to +150 °C), and mechanical shock - required for automotive power modules |
| Sub-nanosecond response | Clamps within 1 ns of transient onset, protecting fast-switching SiC MOSFET gates and isolated ADC front-ends |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under high humidity and bias, ensuring long-term solder joint integrity in sealed industrial enclosures |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power supply exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24 V rail and chassis ground to clamp positive transients before they reach DC-DC converter ICs. Use Value: Limits voltage to ≤328 V during 1500 W surges, preventing damage to 36 V-input buck controllers and enabling compliance with IEC 61000-4-4 Level 3. |
Use Scenario: 12 V battery feed to BCM microcontroller and CAN transceiver, subject to ISO 7637-2 Pulse 1, 2a, and 5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power input, coordinated with secondary LC filters to suppress fast edges. Use Value: AEC-Q101 qualification and 175 °C TJ max ensure robustness against engine compartment thermal stress and repeated load dump events. |
| Telecom Remote Radio Unit (RRU) | Sensor Signal Line Protection |
Use Scenario: -48 V DC power input to outdoor base station RRU, exposed to lightning-induced surges on long feeder cables. IC Role / Device Role / Timing Role: First-stage TVS on DC input, upstream of DC-DC converters and hot-swap controllers. Use Value: 1500 W rating and 328 V clamping enable coordination with MOV-based secondary protection to meet Telcordia GR-1089-CORE Zone 3 requirements. |
Use Scenario: Analog output line (0–10 V) from pressure sensor in hydraulic control system, susceptible to ESD and cable-coupled transients. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 100 pF) placed at connector interface to shunt ESD to ground before op-amp input. Use Value: Sub-ns response prevents latch-up in precision instrumentation amplifiers; 185 V VWM avoids interference with 10 V full-scale signal swing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A | 600 W PPPM, DO-214AA package, 356 V VC @ 2.5 A, lower power handling | Not AEC-Q101 qualified; suitable only for commercial-grade consumer or telecom equipment | Select when board space is constrained and surge energy is limited to IEC 61000-4-5 Level 2 (2 kV). |
| 1.5KE220CA | Bidirectional variant, same VBR/VC, but symmetric clamping for AC-coupled or floating lines | Required for differential signal lines (e.g., RS-485) or transformer-isolated interfaces where polarity reversal occurs | Choose only if bidirectional protection is needed; not interchangeable with 1.5KE220AHE3_B/C due to polarity mismatch. |
Compared with SMBJ220A, the 1.5KE220AHE3_B/C provides 2.5× higher surge power margin and automotive qualification; compared with 1.5KE220CA, it offers superior clamping efficiency on grounded DC rails but cannot protect AC or bipolar signals.
Availability
1.5KE220AHE3_B/C is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom remote radio units, and sensor interface protection requiring stable component supply across extended temperature and high-reliability environments.
Supply support for 1.5KE220AHE3_B/C 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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without sacrificing response speed or thermal resilience.
FAQ
What is the clamping voltage of the 1.5KE220AHE3_B/C under a 10/1000 µs surge?
The 1.5KE220AHE3_B/C clamps to a maximum of 328 V at its rated peak pulse current of 4.6 A under a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees predictable overvoltage limiting for downstream 300 V-rated components. The 1.5KE220AHE3_B/C achieves this with low incremental surge resistance, minimizing voltage overshoot during fast-rising transients.
Is the 1.5KE220AHE3_B/C suitable for automotive applications?
Yes, the 1.5KE220AHE3_B/C is AEC-Q101 qualified and specifically approved for automotive use in power distribution modules, body control units, and battery management systems. Its -55 °C to +175 °C operating range, JESD 201 Class 2 whisker resistance, and validation across HTOL and temperature cycling make the 1.5KE220AHE3_B/C compliant with automotive reliability requirements.
How does the 1.5KE220AHE3_B/C differ from the 1.5KE220CA variant?
The 1.5KE220AHE3_B/C is unidirectional with cathode marking and clamps only positive transients relative to ground, while the 1.5KE220CA is bidirectional and protects both polarities - essential for AC lines or floating differential pairs. The 1.5KE220AHE3_B/C has a 185 V VWM, whereas the 1.5KE220CA's VWM is 156 V; they are not pin-compatible replacements.
What is the maximum steady-state power dissipation of the 1.5KE220AHE3_B/C?
The 1.5KE220AHE3_B/C has a maximum steady-state power dissipation (PD) of 6.5 W when mounted on an infinite heatsink at 75 °C lead temperature. In typical PCB mounting, derating applies per Fig. 5 - at 25 °C ambient, it sustains ~5.2 W continuously. This rating governs thermal design for sustained leakage or fault conditions, distinct from its 1500 W transient capability.
Does the 1.5KE220AHE3_B/C require external current limiting?
No, the 1.5KE220AHE3_B/C is a passive clamping device and does not require series current limiting for transient suppression. However, for sustained overvoltage faults exceeding its 6.5 W PD rating, external fusing or current-limiting circuitry is recommended to prevent thermal runaway. The 1.5KE220AHE3_B/C itself conducts only during overvoltage events and returns to high-impedance state once voltage falls below VWM.
1.5KE220AHE3_B/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 4.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE220AHE3_B/C FAQ
1.How can I place an order for 1.5KE220AHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220AHE3_B/C 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 1.5KE220AHE3_B/C reliable?
The price and inventory of 1.5KE220AHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220AHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE220AHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220AHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220AHE3_B/C?
1.5KE220AHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220AHE3_B/C 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 1.5KE220AHE3_B/C?
For technical support, including 1.5KE220AHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220AHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE220AHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE220AHE3_B/C 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 1.5KE220AHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE220AHE3_B/C?
All 1.5KE220AHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220AHE3_B/C, 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 1.5KE220AHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE220AHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220AHE3_B/C Tags
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Diodes Incorporated
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Diodes Incorporated
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