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Vishay General Semiconductor - Diodes Division 1.5KE220CAHE3/51
- Part No.:
- 1.5KE220CAHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220CAHE3/51.pdf
- Description:
- TVS DIODE 185VWM 328VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,442
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Product details
Overview
1.5KE220CAHE3/51 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 220 V breakdown voltage (VBR = 209–231 V at 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 328 V at 4.6 A, AEC-Q101 qualification, and RoHS-compliant HE3 packaging - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5KE220CAHE3/51 datasheet, 1.5KE220CAHE3/51 pinout, 1.5KE220CAHE3/51 application, or 1.5KE220CAHE3/51 equivalent, key selection criteria include bi-directional clamping capability, junction temperature range (−55 °C to +175 °C), thermal resistance (RθJL = 15.4 °C/W), low incremental surge resistance, and compliance with UL 94 V-0 and JESD 201 Class 2 whisker testing.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction enables fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.58), and stable performance under repetitive surges at 0.01% duty cycle.
The device uses a DO-201AD package with axial leads, rated for 1500 W peak pulse power and 6.5 W steady-state dissipation on infinite heatsink. It supports surge currents up to 4.6 A (10/1000 µs) while maintaining clamping below 328 V, and exhibits a temperature coefficient of VBR of +0.108 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at 1 mA - defines reliable conduction onset under transient overvoltage |
| VWM | 185 V - maximum continuous working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 328 V at 4.6 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak pulse power handling for standardized lightning/surge immunity (IEC 61000-4-5) |
| TJ range | −55 °C to +175 °C - enables operation in under-hood automotive and industrial environments |
| RθJL | 15.4 °C/W - low thermal resistance from junction to lead supports high-reliability PCB mounting without heatsink |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated axial leads; UL 94 V-0 compliant; lead length 0.375" (9.5 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode | Bi-directional terminals | No polarity marking; symmetrical conduction in both directions - installed inline without orientation constraint |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables <1 ns response time and stable leakage performance across temperature and life cycles |
| 1500 W peak pulse rating (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive ports |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term solder joint integrity |
| UL 94 V-0 flammability rating | Molding compound self-extinguishes, supporting safety-critical end equipment certifications |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Ports |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential signal lines or supply rails to shunt transients before they reach sensitive analog front-ends. Use Value: Clamps 10/1000 µs surges to ≤328 V while maintaining 185 V working voltage - preserving signal integrity and preventing latch-up in 3.3 V/5 V microcontrollers. |
Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against induced surges from relay switching and motor drives. IC Role / Device Role / Timing Role: Standoff protector mounted at connector entry point to absorb line-to-ground and line-to-line transients before reaching isolation barriers or FPGA I/O banks. Use Value: Delivers 1500 W pulse handling with 4.6 A peak current capacity - enabling robust Class B/C industrial surge immunity per IEC 61000-4-4/5 without derating. |
| Telecom Power Feeds | Consumer Appliance Motor Controls |
|
Use Scenario: Secondary-side surge suppression on 48 V DC power feeds in remote radio units and base station backhaul equipment. IC Role / Device Role / Timing Role: Bi-directional TVS connected between VDD and GND to clamp both positive and negative-going transients from AC/DC converter ripple or lightning coupling. Use Value: −55 °C to +175 °C operating range ensures stability across outdoor telecom enclosures; RθJL = 15.4 °C/W allows direct PCB mounting without thermal vias. |
Use Scenario: Overvoltage protection for microcontroller GPIOs driving triac-based motor speed controls in washing machines and HVAC systems. IC Role / Device Role / Timing Role: Fast-clamping element placed across triac gate drive lines to suppress commutation spikes and prevent false triggering. Use Value: Sub-1 ns response time intercepts nanosecond-scale dv/dt spikes; 328 V clamping prevents gate oxide breakdown in 5 V logic-level drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | DO-214AA package; lower PPPM (600 W); VC = 356 V @ 2.8 A | Better suited for space-constrained PCBs but requires parallel devices for 1500 W compliance | Select when board area is critical and surge energy is ≤600 W; verify layout thermal relief for SMB footprint |
| 1.5KE220CA | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101, E3 suffix only) | Lacks automotive qualification and JESD 201 Class 2 whisker resistance | Use for cost-sensitive industrial or consumer designs where AEC-Q101 is not mandated |
Compared with 1.5KE220CAHE3/51, SMBJ220CA trades surge capacity for compactness, while 1.5KE220CA retains identical protection performance but omits automotive reliability validation - making the HE3 variant essential for Tier-1 automotive sourcing and long-lifecycle industrial deployments.
Availability
1.5KE220CAHE3/51 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom power feed applications requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant manufacturing.
Supply support for 1.5KE220CAHE3/51 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated through proven silicon robustness and qualification rigor.
FAQ
What is the clamping voltage of the 1.5KE220CAHE3/51 under a 10/1000 µs surge?
The 1.5KE220CAHE3/51 clamps to a maximum of 328 V at its rated peak pulse current of 4.6 A (10/1000 µs waveform). This value is measured per JEDEC standards and reflects worst-case voltage seen by protected circuitry during standardized surge events - critical for validating margin against downstream IC absolute maximum ratings.
Is the 1.5KE220CAHE3/51 suitable for automotive applications?
Yes, the 1.5KE220CAHE3/51 is AEC-Q101 qualified and manufactured with JESD 201 Class 2 whisker-resistant plating, making it approved for automotive use in engine control units, ADAS sensors, and body electronics. Its −55 °C to +175 °C operating range and UL 94 V-0 molding compound further support under-hood deployment.
How does the bi-directional configuration of the 1.5KE220CAHE3/51 affect circuit placement?
The 1.5KE220CAHE3/51 has no polarity marking and conducts identically in both directions, allowing installation across any two nodes requiring symmetrical overvoltage protection - such as differential signal pairs (CAN_H/CAN_L) or AC-coupled power rails. No orientation check is needed during assembly.
What is the maximum steady-state power dissipation for the 1.5KE220CAHE3/51?
The 1.5KE220CAHE3/51 dissipates up to 6.5 W when mounted on an infinite heatsink at lead temperature TL = 75 °C (per Fig. 5 in Vishay Doc. 88301). In typical PCB layouts without heatsinking, derating applies - e.g., ~3.5 W at TL = 100 °C - requiring thermal design verification for continuous power handling.
Does the 1.5KE220CAHE3/51 meet UL safety certification?
Yes, the 1.5KE220CAHE3/51 carries Underwriters Laboratories recognition (QVGQ2) under UL 497B for protector classification, with file number E136766. Its UL 94 V-0 compliant epoxy body also satisfies flammability requirements for end-equipment safety certifications including IEC 62368-1.
1.5KE220CAHE3/51 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE220CAHE3/51 FAQ
1.How can I place an order for 1.5KE220CAHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220CAHE3/51 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 1.5KE220CAHE3/51 reliable?
The price and inventory of 1.5KE220CAHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220CAHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE220CAHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220CAHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220CAHE3/51?
1.5KE220CAHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220CAHE3/51 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 1.5KE220CAHE3/51?
For technical support, including 1.5KE220CAHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220CAHE3/51 requirements.
6.How does Aetrix verify that 1.5KE220CAHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE220CAHE3/51 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 1.5KE220CAHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE220CAHE3/51?
All 1.5KE220CAHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220CAHE3/51, 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 1.5KE220CAHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE220CAHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220CAHE3/51 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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