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Vishay General Semiconductor - Diodes Division 1.5KE220A-E3/54
- Part No.:
- 1.5KE220A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220A-E3/54.pdf
- Description:
- TVS DIODE 185VWM 328VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,280
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Product details
Overview
1.5KE220A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 209 V to 231 V breakdown voltage (VBR), 185 V maximum standoff 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 against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE220A-E3/54 datasheet, 1.5KE220A-E3/54 pinout, 1.5KE220A-E3/54 application, or 1.5KE220A-E3/54 equivalent, this device delivers verified clamping performance for industrial power supply inputs, automotive body control modules, and telecom line interface circuits where fast response (<1 ns), low incremental surge resistance, and AEC-Q101–qualified variants are critical selection criteria.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for high-energy transient suppression. Its clamping behavior follows a well-defined incremental voltage curve (ΔVC = VC – VBR) with low dynamic impedance under 10/1000 µs surge conditions, enabling predictable voltage limiting during ESD and surge events.
It operates with a 1.0 mA test current for breakdown verification, exhibits 1.0 µA max reverse leakage at VWM, and maintains stable thermal performance via a 15.4 °C/W junction-to-lead thermal resistance - critical for sustained surge handling without thermal runaway in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V to 231 V at 1.0 mA - defines reliable conduction onset threshold for overvoltage detection |
| VWM | 185 V - maximum continuous working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 328 V at 4.6 A - clamped voltage during full 1500 W surge, limiting downstream stress |
| PPPM | 1500 W (10/1000 µs waveform) - single-pulse energy absorption capacity for lightning-level transients |
| TJ range | -55 °C to +175 °C - enables deployment in under-hood automotive and industrial ambient environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with matte tin-plated leads, UL 94 V-0 compliant molding |
| Mounting | Solderable per J-STD-002/JESD 22-B102; withstands 275 °C dip soldering (10 s max) |
Pinout & Package
1.5KE220A-E3/54 is housed in a DO-201AD (Case Style 1.5KE) axial-leaded package. The cathode is marked by a color band on the body; polarity must be observed during PCB layout to ensure correct unidirectional clamping orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side reference node | Connected to ground or low-voltage rail; completes clamping path during overvoltage |
| Cathode (banded end) | High-side transient sink | Connected to protected line; conducts surge current to ground when VIN > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity without external series impedance |
| <1 ns response time | Clamps transients before sensitive downstream components (e.g., MCU I/O, gate drivers) experience overstress |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., EFT bursts), improving protection margin |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance - suitable for high-reliability industrial and automotive production |
Applications
| Industrial Power Supply Input | Automotive Body Control Module |
|---|---|
Use Scenario: Protects 24 V DC input stage of programmable logic controllers (PLCs) against load dump and inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converter input filter. Use Value: Limits transient voltage to ≤328 V, preventing damage to input capacitors and controller ICs rated for 400 V max. |
Use Scenario: Shields LIN bus transceivers and microcontroller GPIOs from battery line transients during jump-start or alternator load dump. IC Role / Device Role / Timing Role: Unidirectional shunt protector on VBAT-fed power rail feeding BCM sub-circuits. Use Value: Clamps 100 V/10 ms load dump spikes to safe levels within <1 ns, preserving signal integrity and MCU reset stability. |
| Telecom Line Interface | Consumer Appliance Motor Drive |
Use Scenario: Safeguards Ethernet PHY power pins and RS-485 transceiver VCC rails against induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-stage TVS on isolated DC power feed to communication ICs. Use Value: Absorbs up to 1500 W of coupled surge energy while maintaining VC below 350 V - within absolute max rating of 3.3 V/5 V PHYs. |
Use Scenario: Suppresses back-EMF spikes from brushed DC motors in washing machine control boards during commutation. IC Role / Device Role / Timing Role: Clamp diode across motor terminals or on H-bridge supply rail. Use Value: Diverts 200 A IFSM-rated surge current away from bridge MOSFETs, reducing gate oxide stress and extending drive circuit lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A | DO-214AA package (SMB), lower PPPM = 600 W, same VBR range (209–231 V), surface-mount only | Used where board space is constrained and reflow assembly is preferred over through-hole | Select SMBJ220A when automated SMT placement is required and 600 W surge rating suffices for system-level testing. |
| 1.5KE220CA | Bidirectional variant (no polarity marking), identical VBR/VC/PPPM, but rated only to 220 V VBR max per family spec | Required for AC-coupled or floating signal lines (e.g., RS-232, audio) needing symmetrical clamping | Choose 1.5KE220CA only if bidirectional protection is mandated; 1.5KE220A-E3/54 is optimal for DC rail protection with defined polarity. |
Compared with SMBJ220A, 1.5KE220A-E3/54 provides 2.5× higher surge power and through-hole mechanical robustness; versus 1.5KE220CA, it offers superior DC rail clamping precision and avoids unnecessary bidirectional capacitance in unidirectional paths.
Availability
1.5KE220A-E3/54 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and telecom infrastructure requiring stable component supply with traceable RoHS-compliant sourcing and volume-ready packaging (13" paper tape, 1400 pcs/reel).
Supply support for 1.5KE220A-E3/54 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 applications where failure due to voltage surges could compromise safety, data integrity, or functional operation.
FAQ
What is the clamping voltage of the 1.5KE220A-E3/54 under maximum surge conditions?
The 1.5KE220A-E3/54 clamps to 328 V at its rated peak pulse current of 4.6 A (10/1000 µs waveform). This value is measured per JEDEC standard test conditions and represents the maximum voltage seen across the device during a full 1500 W transient event. Designers use this VC to verify that downstream components remain within their absolute maximum voltage ratings when the 1.5KE220A-E3/54 is active.
Is the 1.5KE220A-E3/54 suitable for automotive applications?
The base 1.5KE220A-E3/54 is commercial-grade and not AEC-Q101 qualified; however, the pin-compatible 1.5KE220AHE3_B variant is explicitly AEC-Q101 qualified per Vishay documentation. For automotive body control or infotainment systems requiring qualification, specify the HE3_B suffix. The 1.5KE220A-E3/54 remains appropriate for non-safety-critical industrial or telecom applications where qualification is not mandated.
How does the 1.5KE220A-E3/54 differ from the 1.5KE220CA variant?
The 1.5KE220A-E3/54 is unidirectional with cathode marking, while 1.5KE220CA is bidirectional with no polarity marking. Both share identical VBR, VC, and PPPM, but the CA version supports symmetrical clamping on AC or floating nodes. Use 1.5KE220A-E3/54 for DC rails where polarity is fixed; select 1.5KE220CA only when bidirectional protection is required - e.g., differential signal lines or transformer-coupled interfaces.
What is the maximum operating temperature for the 1.5KE220A-E3/54?
The 1.5KE220A-E3/54 has a specified junction temperature range of -55 °C to +175 °C. Its thermal resistance from junction to lead is 15.4 °C/W, allowing direct heatsinking via PCB copper or chassis contact. At ambient temperatures above 75 °C, derating per Figure 5 in the Vishay datasheet applies - ensuring safe operation requires verifying power dissipation and thermal path design for each specific layout using the 1.5KE220A-E3/54.
Can the 1.5KE220A-E3/54 be used in parallel for higher surge capability?
Vishay's application notes confirm that 1.5KE220A-E3/54 devices may be paralleled to increase total peak pulse power, provided matched units are used and layout symmetry ensures equal current sharing. However, derating by ≥20% is recommended due to parameter spread; for designs requiring >1500 W, consider higher-rated families (e.g., 3KP or 5KP series) instead of parallel 1.5KE220A-E3/54 units to avoid imbalance-induced failure.
1.5KE220A-E3/54 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE220A-E3/54 FAQ
1.How can I place an order for 1.5KE220A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220A-E3/54 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 1.5KE220A-E3/54 reliable?
The price and inventory of 1.5KE220A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE220A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220A-E3/54?
1.5KE220A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220A-E3/54 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 1.5KE220A-E3/54?
For technical support, including 1.5KE220A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220A-E3/54 requirements.
6.How does Aetrix verify that 1.5KE220A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE220A-E3/54 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 1.5KE220A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE220A-E3/54?
All 1.5KE220A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220A-E3/54, 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 1.5KE220A-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE220A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220A-E3/54 Tags
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