My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE220HE3/73
- Part No.:
- 1.5KE220HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220HE3/73.pdf
- Description:
- TVS DIODE 175VWM 344VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,792
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE220HE3/73 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), 185 V maximum working voltage (VWM), 328 V clamping voltage at 4.6 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and operates across –55 °C to +175 °C junction temperature range - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE220HE3/73 datasheet, 1.5KE220HE3/73 pinout, 1.5KE220HE3/73 application, or 1.5KE220HE3/73 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), JEDEC 1.5KE package dimensions, and direct replacement guidance for high-reliability transient suppression design.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast clamping response (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse power handling is defined per 10/1000 µs waveform with 0.01% duty cycle, and it maintains stable clamping performance up to 175 °C junction temperature.
The device complies with JESD 201 Class 2 whisker testing (HE3 suffix), meets UL 94 V-0 flammability requirements, and supports soldering at 275 °C for 10 s. It is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits 3.5 V max forward voltage at 100 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V - ensures reliable triggering above system operating voltage while avoiding false trips during transients |
| VWM | 185 V - maximum continuous reverse standoff voltage compatible with 150–180 V DC bus applications |
| VC @ IPPM | 328 V - clamping voltage limits downstream IC stress during 4.6 A 10/1000 µs surge events |
| PPPM | 1500 W - handles high-energy lightning-induced surges per IEC 61000-4-5 Level 4 without degradation |
| TJ range | –55 °C to +175 °C - supports under-hood automotive and industrial ambient environments without derating |
| RθJL | 15.4 °C/W - enables effective heat transfer to PCB copper pour or chassis for sustained surge duty cycles |
| IFSM | 200 A - withstands repetitive motor-commutation or relay-switching surge currents in industrial controls |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with matte tin-plated leads; RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Dimensions: 5.3 mm × 5.3 mm × 9.5 mm (L × W × H), lead spacing 7.2 mm, lead diameter 1.07 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | High-side connection point for unidirectional clamping | Connected to protected line; anode tied to ground or lower potential rail to shunt surge energy |
| Anode | Reference/return path | Must be solidly connected to low-impedance ground plane to ensure sub-ns response and avoid voltage overshoot |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics per stress test requirements including HTGB, TCT, and H3TRB |
| 1500 W peak pulse power | Supports IEC 61000-4-5 combination wave (1.2/50 µs voltage, 8/20 µs current) up to Level 4 (4 kV/2 kA) |
| Low RθJL (15.4 °C/W) | Permits >90% of surge energy to dissipate through leads into PCB copper, reducing localized heating at die |
| JESD 201 Class 2 whisker resistance | Eliminates risk of tin whisker growth in high-humidity, high-bias automotive modules over 15+ year service life |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits input voltage to ≤328 V during 120 V/400 ms load dump events, preventing MOSFET gate oxide rupture and regulator latch-up. |
Use Scenario: 4–20 mA current loop interfaces in PLC analog input modules subjected to field wiring ESD and inductive kick. IC Role / Device Role / Timing Role: Fast-response shunt protector on transmitter output and receiver input pins. Use Value: Clamps transients within 1 ns to protect precision op-amps and ADC front-ends without distorting low-level analog signals. |
| Telecom AC/DC Power Supply Surge Suppression | Consumer Appliance Motor Drive Bus Protection |
Use Scenario: Secondary-side DC bus in PoE-powered switches and base stations encountering induced lightning surges. IC Role / Device Role / Timing Role: Secondary-stage TVS parallel to bulk capacitor, coordinated with MOV primary stage. Use Value: Provides precise 328 V clamping threshold to prevent overvoltage damage to Ethernet PHYs and PMICs after MOV let-through. |
Use Scenario: DC link between rectifier and inverter in washing machine motor drives experiencing commutation spikes. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to DC bus negative rail to absorb regenerative energy spikes. Use Value: Sustains 200 A surge current without parametric shift, preserving IGBT gate driver integrity during repeated start-stop cycles. |
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 | DO-214AA package; 200 W peak power; 220 V VBR; 356 V VC @ 4.2 A | Lower power rating suits space-constrained consumer designs but insufficient for automotive load dump compliance | Select when board area is critical and surge energy is limited to IEC 61000-4-2 ESD only |
| 1.5KE220A-E3/54 | Same 1.5KE package and electrical specs; commercial-grade (non-AEC-Q101); E3 suffix only (JESD 201 Class 1A) | Lacks automotive qualification and Class 2 whisker resistance - not approved for under-hood use | Acceptable for industrial control panels where AEC-Q101 is not mandated and cost sensitivity is high |
Compared with 1.5KE220HE3/73, SMBJ220A offers smaller footprint but sacrifices 87% peak power capability and automotive qualification; 1.5KE220A-E3/54 matches form-fit-function but omits AEC-Q101 validation and enhanced whisker resistance required for automotive OEM programs.
Availability
1.5KE220HE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, telecom power supplies, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5KE220HE3/73 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, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, targeting ISO 16750-2 load dump, IEC 61000-4-5 surge immunity, and AEC-Q101 automotive qualification requirements.
FAQ
What is the clamping voltage of the 1.5KE220HE3/73 under maximum rated surge current?
The 1.5KE220HE3/73 has a maximum clamping voltage (VC) of 328 V at its rated peak pulse current (IPPM) of 4.6 A, measured using the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream components remain below their absolute maximum voltage ratings during surge events. The 1.5KE220HE3/73 achieves this with low incremental surge resistance and fast junction response.
Is the 1.5KE220HE3/73 qualified for automotive applications?
Yes, the 1.5KE220HE3/73 is AEC-Q101 qualified, as confirmed by Vishay documentation for the HE3 suffix variant. It undergoes stress testing including high-temperature gate bias (HTGB), temperature cycling (TCT), and highly accelerated temperature and humidity stress (HAST) to meet automotive reliability standards. The 1.5KE220HE3/73 is approved for use in engine control modules, body control units, and ADAS power supplies where transient immunity is critical.
What is the difference between the HE3 and E3 suffixes in the 1.5KE220 part numbering?
The HE3 suffix indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, while the E3 suffix denotes RoHS-compliant commercial-grade parts with only JESD 201 Class 1A whisker testing. For the 1.5KE220HE3/73, HE3 confirms full automotive qualification, extended temperature operation, and enhanced long-term reliability in high-humidity environments - distinctions that make the 1.5KE220HE3/73 unsuitable for substitution with E3-only variants in automotive designs.
Can the 1.5KE220HE3/73 be used in bidirectional configurations?
No, the 1.5KE220HE3/73 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the CA suffix (e.g., 1.5KE220CA), which is not offered for the 220 V rating per Vishay's datasheet note stating "Bidirectional is available from 1.5KE6.8CA to 1.5KE220CA only" - confirming 1.5KE220CA exists, but 1.5KE220HE3/73 is strictly unidirectional. Using the 1.5KE220HE3/73 in reverse-biased configurations risks permanent failure.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE220HE3/73?
The 1.5KE220HE3/73 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, as specified in Vishay's thermal characteristics table. This low value enables efficient heat conduction from the silicon die directly into the PCB copper via the leads, supporting reliable operation during repetitive surge events. Designers should use ≥100 mm² of 2-oz copper connected to both leads to maintain safe junction temperatures below 175 °C. This RθJL value is integral to the 1.5KE220HE3/73's ability to sustain high-energy transients without thermal runaway.
1.5KE220HE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE220HE3/73 FAQ
1.How can I place an order for 1.5KE220HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220HE3/73 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 1.5KE220HE3/73 reliable?
The price and inventory of 1.5KE220HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220HE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE220HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220HE3/73?
1.5KE220HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220HE3/73 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 1.5KE220HE3/73?
For technical support, including 1.5KE220HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220HE3/73 requirements.
6.How does Aetrix verify that 1.5KE220HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE220HE3/73 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 1.5KE220HE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE220HE3/73?
All 1.5KE220HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220HE3/73, 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 1.5KE220HE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE220HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220HE3/73 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
