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Vishay General Semiconductor - Diodes Division 1.5KE220CHE3/73
- Part No.:
- 1.5KE220CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220CHE3/73.pdf
- Description:
- TVS DIODE 175VWM 344VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,766
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Product details
Overview
1.5KE220CHE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in power rails and signal lines. It features a 209 V to 231 V breakdown voltage (VBR) at 1 mA, 185 V maximum standoff voltage (VWM), 328 V clamping voltage (VC) at 4.6 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5KE220CHE3/73 datasheet, 1.5KE220CHE3/73 pinout, 1.5KE220CHE3/73 application, or 1.5KE220CHE3/73 equivalent, this device is evaluated for high-energy transient suppression in automotive power supplies, industrial motor control I/O protection, and telecom line interface circuits where fast response (<1 ns), low clamping ratio, and AEC-Q101 qualification are critical selection criteria.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector, conducting only when reverse voltage exceeds its specified VBR threshold. Its glass-passivated junction ensures stable avalanche characteristics, while the 1.5KE case provides robust thermal dissipation with RθJA = 75 °C/W and RθJL = 15.4 °C/W.
It delivers 1500 W peak pulse power handling per 10/1000 µs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, and supports 200 A non-repetitive forward surge current (IFSM) for unidirectional operation. The device exhibits 0.108 %/°C temperature coefficient of VBR, ensuring predictable voltage threshold drift across -55 °C to +175 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at 1 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 185 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 328 V at 4.6 A - clamping voltage limiting downstream component stress during surge events |
| PPPM | 1500 W - peak transient energy absorption capability with 10/1000 µs standard waveform |
| IFSM | 200 A - single half-sine surge current rating (8.3 ms), critical for inductive load switching protection |
| 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 |
Pinout & Package
1.5KE220CHE3/73 uses the standard 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 shunt conduction path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for unidirectional clamping | Connected to ground or lower-potential rail; conducts during reverse overvoltage |
| Cathode | Protected line input terminal | Connected to the line being protected (e.g., 24 V supply rail); color-banded end |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable avalanche breakdown and long-term reliability under repeated surge stress |
| 1500 W peak pulse power | Supports high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in 12 V/24 V automotive systems |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT/burst events per IEC 61000-4-4) |
| Fast response time | <1 ns clamping activation enables protection of sub-nanosecond-sensitive logic and analog front-ends |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump transients up to 120 V and ISO 7637-2 Pulse 5a events. IC Role / Device Role: Primary shunt clamping element placed between power rail and chassis ground. Use Value: Limits rail voltage to ≤328 V during 1500 W surge, preventing damage to MCU power inputs and CAN transceivers. | Use Scenario: Shielding 4–20 mA current loop inputs in PLC analog modules from field wiring surges. IC Role / Device Role: High-voltage standoff and low-leakage transient clamp on signal return path. Use Value: Maintains <1 µA leakage at 185 V VWM, preserving loop accuracy while clamping >200 V transients. |
| Telecom Line Interface Protection | Motor Drive I/O Protection |
Use Scenario: Safeguarding RS-485 transceivers connected to outdoor copper lines exposed to induced lightning. IC Role / Device Role: First-stage surge suppressor on differential bus lines before secondary filtering. Use Value: Clamps common-mode surges to 328 V within nanoseconds, meeting ITU-T K.20/21 immunity requirements. | Use Scenario: Protecting microcontroller GPIOs driving optocoupled gate drivers in BLDC inverters. IC Role / Device Role: Reverse-polarity and inductive kickback suppressor on isolated control outputs. Use Value: Absorbs 200 A IFSM spikes from relay coil de-energization without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A-E3/52 | DO-214AA (SMB) package, 200 W PPPM, lower VC (355 V), same VBR range | Lower power handling limits use to sub-500 W surge environments; surface-mount only | Select when board space is constrained and surge energy is ≤500 W; not suitable for load dump. |
| 1.5KE220A-E3/54 | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101 qualified) | Lacks automotive qualification testing; unsuitable for production automotive ECUs | Choose for cost-sensitive industrial or consumer applications where AEC-Q101 is not mandated. |
Compared with 1.5KE220CHE3/73, SMBJ220A-E3/52 trades surge capacity for compactness and SMB footprint, while 1.5KE220A-E3/54 retains identical performance but omits automotive qualification - making the HE3/73 variant essential for Tier-1 automotive designs requiring validated reliability.
Availability
1.5KE220CHE3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE220CHE3/73 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 high-reliability, high-power, and automotive-qualified components.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 compliance and 1500 W surge resilience.
FAQ
What is the clamping voltage of the 1.5KE220CHE3/73 under peak pulse conditions?
The 1.5KE220CHE3/73 has a maximum clamping voltage (VC) of 328 V at its rated peak pulse current (IPPM) of 4.6 A, measured using the standardized 10/1000 µs waveform. This value ensures downstream components experience no more than 328 V during surge events, directly supporting design margin calculations for 24 V and 48 V systems. The 1.5KE220CHE3/73 maintains this clamping performance across its full operating temperature range.
Is the 1.5KE220CHE3/73 suitable for automotive applications?
Yes, the 1.5KE220CHE3/73 is AEC-Q101 qualified, having passed rigorous stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD validation. Its -55 °C to +175 °C operating junction temperature range and 200 A IFSM rating make it appropriate for engine bay and transmission control unit deployments. The 1.5KE220CHE3/73 meets ISO 7637-2 Pulse 5a requirements when properly mounted with low-inductance grounding.
How does the 1.5KE220CHE3/73 differ from the standard 1.5KE220A variant?
The 1.5KE220CHE3/73 differs from 1.5KE220A primarily in qualification and marking: it carries the HE3 suffix indicating RoHS compliance and AEC-Q101 qualification, whereas 1.5KE220A is commercial-grade only. Both share identical electrical parameters (VBR, VWM, VC, PPPM) and DO-201AD packaging. The 1.5KE220CHE3/73 is traceable to automotive-grade manufacturing lots and undergoes additional reliability screening not applied to the 1.5KE220A.
What is the standoff voltage rating for the 1.5KE220CHE3/73?
The 1.5KE220CHE3/73 has a maximum steady-state reverse standoff voltage (VWM) of 185 V, meaning it remains non-conductive with leakage current ≤1 µA up to this DC or RMS voltage level. This allows safe integration into 150 V nominal systems such as 48 V telecom power distribution or industrial 200 V DC links. Exceeding 185 V risks premature conduction and thermal runaway, so system design must maintain margin below this limit. The 1.5KE220CHE3/73 datasheet confirms this value at TA = 25 °C.
Does the 1.5KE220CHE3/73 require heatsinking in typical applications?
No, the 1.5KE220CHE3/73 does not require external heatsinking for transient suppression duty due to its pulsed nature - energy is dissipated in milliseconds, not continuously. Its RθJA of 75 °C/W applies to steady-state conditions, which are irrelevant for TVS operation. However, PCB layout must provide adequate copper area (≥100 mm² per lead) and short traces to minimize inductance and maximize surge current handling. The 1.5KE220CHE3/73 relies on thermal mass of leads and board, not heatsinks, for single-event dissipation.
1.5KE220CHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 175V
- Voltage - Breakdown (Min):
- 198V
- Voltage - Clamping (Max) @ Ipp:
- 344V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- 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
1.5KE220CHE3/73 FAQ
1.How can I place an order for 1.5KE220CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220CHE3/73 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 1.5KE220CHE3/73 reliable?
The price and inventory of 1.5KE220CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE220CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220CHE3/73?
1.5KE220CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220CHE3/73 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 1.5KE220CHE3/73?
For technical support, including 1.5KE220CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE220CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE220CHE3/73 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 1.5KE220CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE220CHE3/73?
All 1.5KE220CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220CHE3/73, 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 1.5KE220CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE220CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220CHE3/73 Tags
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