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Vishay General Semiconductor - Diodes Division 1.5KE220-E3/73
- Part No.:
- 1.5KE220-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220-E3/73.pdf
- Description:
- TVS DIODE 175VWM 344VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:7,878
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Product details
Overview
1.5KE220-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 209 V to 231 V breakdown voltage (VBR) at 1 mA, 185 V maximum stand-off 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 - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the 1.5KE220-E3/73 datasheet, 1.5KE220-E3/73 pinout, 1.5KE220-E3/73 application, or 1.5KE220-E3/73 equivalent, this part delivers verified transient suppression for 24 V and 48 V systems where fast response (<1 ns), low clamping ratio (VC/VWM ≈ 1.77), and AEC-Q101–compatible construction are critical selection criteria.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VWM = 185 V and transitions sharply to low-impedance conduction above VBR = 209–231 V to divert surge energy away from downstream ICs. Its glass-passivated junction ensures stable leakage (<1 µA at VWM) and repeatable breakdown behavior across temperature.
The device sustains 1500 W peak pulse power per 10/1000 µs waveform with derating above 25 °C (RθJA = 75 °C/W), supports 200 A non-repetitive forward surge (8.3 ms half-sine), and exhibits 0.108 %/°C VBR temperature coefficient - enabling predictable performance in under-hood automotive and factory-floor environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 209 V min. to 231 V max. at 1 mA - defines precise clamping initiation threshold for overvoltage events |
| Stand-off Voltage VWM | 185 V - maximum continuous operating voltage without leakage exceeding 1 µA |
| Clamping Voltage VC | 328 V at 4.6 A IPPM - limits transient voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power PPPM | 1500 W - enables single-event suppression of lightning-induced surges up to IEC 61000-4-5 Level 4 |
| Peak Pulse Current IPPM | 4.6 A - quantifies maximum surge current safely diverted without degradation |
| Operating Temperature Range | −55 °C to +175 °C - supports deployment in engine compartments and industrial enclosures |
| Thermal Resistance RθJA | 75 °C/W - determines required PCB copper area and heatsinking for sustained power dissipation |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded molded epoxy body with matte tin-plated leads; RoHS-compliant, commercial-grade E3 suffix; 0.375" (9.5 mm) lead length standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; cathode faces protected line |
| Cathode | Protected-line interface | Connected in parallel to input rail (e.g., 24 V supply); color band denotes this end |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5 %), low leakage (<1 µA), and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive power inputs |
| Clamping ratio VC/VWM ≈ 1.77 | Minimizes overvoltage stress on downstream regulators and microcontrollers during transients |
| Response time <1 ns | Protects sensitive MOSFET gates and ADC inputs before damage-inducing voltage peaks propagate |
| AEC-Q101 qualified variants available | Enables drop-in qualification path for automotive applications via HE3 suffix versions (e.g., 1.5KE220AHE3_B) |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: 24 V battery-supplied ECUs exposed to load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Primary shunt clamp on main power rail upstream of DC/DC converter and MCU. Use Value: Limits rail voltage to ≤328 V during 100 V/100 ms load dump, preventing regulator latch-up and gate oxide rupture. |
Use Scenario: 24 V digital input modules receiving signals from field sensors in noisy factory environments. IC Role / Device Role: Line-side TVS placed between connector and optocoupler input stage. Use Value: Clamps ESD (IEC 61000-4-2 ±8 kV contact) and inductive switch spikes before damaging isolation barrier components. |
| Telecom Power Feeding Protection | Motor Drive Control Signal Protection |
Use Scenario: 48 V PoE-powered remote radio units subjected to lightning-induced surges on outdoor cabling. IC Role / Device Role: First-stage protector on DC feed line prior to hot-swap controller and LDO. Use Value: Absorbs >1500 W surge energy from 10/1000 µs transients while maintaining VWM margin above nominal 48 V. |
Use Scenario: Gate drive signals routed near high-di/dt motor phases in BLDC inverters. IC Role / Device Role: Bidirectional TVS (e.g., 1.5KE220CA) across isolated gate driver outputs. Use Value: Suppresses Miller-induced voltage spikes (>100 V/ns) that could falsely trigger IGBTs or damage level-shifters. |
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 | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), higher VC/VWM ratio (1.95) | Preferred for space-constrained PCBs; unsuitable for IEC 61000-4-5 Level 4 due to lower power rating | Select when board area is limited and surge threat level is ≤Level 3 (1 kV/2 kA) |
| 1.5KE220AHE3_B | Identical electrical specs; AEC-Q101 qualified, HE3 whisker-tested, B revision code | Required for automotive production; supports PPAP documentation and extended temperature validation | Choose for OEM automotive programs needing full qualification traceability |
Compared with 1.5KE220-E3/73, SMBJ220A trades power handling for compactness, while 1.5KE220AHE3_B adds automotive qualification without altering clamping performance - enabling direct substitution only when AEC-Q101 compliance is mandated.
Availability
1.5KE220-E3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for 1.5KE220-E3/73 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in DC power distribution networks, balancing ruggedness, precision clamping, and manufacturability in axial-leaded packages.
FAQ
What is the clamping voltage of the 1.5KE220-E3/73 under a 10/1000 µs surge?
The 1.5KE220-E3/73 clamps to a maximum of 328 V at 4.6 A peak pulse current when subjected to a 10/1000 µs waveform. This value is measured per JEDEC standards and reflects the actual voltage imposed on the protected circuit during worst-case surge conditions - critical for verifying margin against downstream component absolute maximum ratings.
Is the 1.5KE220-E3/73 unidirectional or bidirectional?
The 1.5KE220-E3/73 is a unidirectional TVS diode, indicated by the absence of "CA" suffix. It conducts only in reverse bias (cathode positive), with the banded end marking the cathode. Bidirectional variants such as 1.5KE220CA exist but are distinct orderable parts with symmetrical clamping in both polarities.
Does the 1.5KE220-E3/73 meet AEC-Q101 reliability requirements?
The 1.5KE220-E3/73 itself is commercial-grade (E3 suffix) and not AEC-Q101 qualified. However, the functionally identical 1.5KE220AHE3_B variant carries AEC-Q101 qualification and JESD201 Class 2 whisker resistance - making it the designated choice for automotive production where qualification is mandatory.
What is the maximum steady-state power dissipation for the 1.5KE220-E3/73?
The 1.5KE220-E3/73 has a maximum steady-state power dissipation (PD) of 6.5 W when mounted on an infinite heatsink at lead temperature TL = 75 °C. In typical PCB layouts without heatsinking, derating applies per Fig. 5 in the datasheet - e.g., ~4.5 W at TL = 100 °C.
How does the 1.5KE220-E3/73 compare to the 1.5KE200A in terms of voltage ratings?
The 1.5KE220-E3/73 has a higher breakdown range (209–231 V) and stand-off voltage (185 V) than the 1.5KE200A (190–210 V VBR, 171 V VWM). This makes the 1.5KE220-E3/73 better suited for 24 V systems with wider supply tolerances or where tighter clamping margin above nominal rail is required.
1.5KE220-E3/73 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:
- 1
- Bidirectional Channels:
- -
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE220-E3/73 FAQ
1.How can I place an order for 1.5KE220-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220-E3/73 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 1.5KE220-E3/73 reliable?
The price and inventory of 1.5KE220-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE220-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220-E3/73?
1.5KE220-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220-E3/73 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 1.5KE220-E3/73?
For technical support, including 1.5KE220-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220-E3/73 requirements.
6.How does Aetrix verify that 1.5KE220-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE220-E3/73 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 1.5KE220-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE220-E3/73?
All 1.5KE220-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220-E3/73, 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 1.5KE220-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE220-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220-E3/73 Tags
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