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Vishay General Semiconductor - Diodes Division 1.5KE62CHE3/73
- Part No.:
- 1.5KE62CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE62CHE3/73.pdf
- Description:
- TVS DIODE 50.2VWM 89VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,349
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Product details
Overview
1.5KE62CHE3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 62 V breakdown voltage (VBR = 58.9–65.1 V at 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 85.0 V at 17.6 A, and operates across –55 °C to +175 °C junction temperature range.
For engineers reviewing the 1.5KE62CHE3/73 datasheet, 1.5KE62CHE3/73 pinout, 1.5KE62CHE3/73 application, or 1.5KE62CHE3/73 equivalent, this device serves as a robust, glass-passivated, RoHS-compliant surge protector for automotive power supplies, industrial sensor interfaces, and telecom line cards where fast clamping (<1 ns), low incremental surge resistance, and AEC-Q101 qualification are critical selection criteria.
Technical Context
This TVS diode uses a silicon avalanche junction with glass passivation to deliver stable, repeatable clamping under high-energy transients. Its unidirectional polarity enables integration into DC-biased circuits without reverse conduction concerns, and its 10/1000 µs waveform rating reflects standardized lightning-surge immunity testing per IEC 61000-4-5.
The device exhibits a temperature coefficient of VBR of +0.104 %/°C and maintains clamping performance up to 175 °C junction temperature. Its thermal resistance (RθJL = 15.4 °C/W) supports reliable operation on PCBs with minimal copper heatsinking, while the matte tin-plated leads ensure solderability per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 58.9 V / 65.1 V at 1 mA - defines precise avalanche onset threshold for predictable overvoltage triggering |
| VWM | 53.0 V - maximum continuous working voltage before leakage exceeds 1 µA, ensuring no false triggering in 48 V systems |
| VC @ IPPM | 85.0 V at 17.6 A - clamping voltage during full 1500 W transient, limiting downstream stress to safe levels |
| PPPM | 1500 W - peak pulse power handling for 10/1000 µs waveform, suitable for IEC 61000-4-5 Level 4 surges |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine), supporting high-energy inductive switch-off events |
| TJ max. | +175 °C - extended junction temperature capability enables use in under-hood automotive or high-ambient industrial environments |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance allows effective heat transfer to PCB copper without external heatsink |
Pinout & Package
Package: Axial-leaded DO-201AD (Case Style 1.5KE), molded epoxy body with UL 94 V-0 flammability rating; matte tin-plated leads; RoHS compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of protected circuit; enables unidirectional clamping from cathode to anode |
| Cathode | Avalanche breakdown terminal | Marked with color band; connected to higher-potential rail (e.g., +VIN) to clamp positive transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Supports EN 61000-4-5 surge immunity compliance in industrial and automotive power inputs |
| Clamping response time < 1 ns | Protects sensitive ICs (e.g., microcontrollers, CAN transceivers) before transient energy reaches vulnerable nodes |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt events, improving protection margin for MOSFET gate drivers |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary clamping device placed between battery input and DC-DC converter input stage. Use Value: Clamps 120 V/1500 W transients to ≤85 V within nanoseconds, preventing damage to upstream regulators and MCU power supplies. |
Use Scenario: Shielding 4–20 mA analog sensor outputs from ESD and field-induced surges in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS mounted directly at connector entry point before signal conditioning op-amp. Use Value: Limits transient voltage to 85 V while maintaining <1 µA leakage at 53 V, preserving signal integrity and ADC accuracy. |
| Telecom Line Card Surge Protection | Motor Drive Control Board |
Use Scenario: Safeguarding Ethernet PHY power pins and bias rails in outdoor base station equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS on +3.3 V and +12 V supply rails feeding PHY ICs and magnetics. Use Value: Delivers 1500 W surge handling with 85 V clamping, meeting GR-1089-CORE Level 3 requirements without derating. |
Use Scenario: Suppressing inductive kickback from solenoid valves and brushed DC motors in PLC output modules. IC Role / Device Role / Timing Role: Mounted across relay coil or motor winding terminals to absorb stored magnetic energy. Use Value: Handles 200 A single-pulse surge (8.3 ms) and clamps flyback spikes to 85 V, extending contactor life and reducing EMI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | DO-214AA package (SMB), 64 V VBR, 600 W PPPM, lower IPPM (10.3 A), surface-mount only | Preferred for space-constrained PCBs; unsuitable for through-hole legacy designs or high-current (>15 A) surge paths | Select when board real estate is limited and peak surge energy does not exceed 600 W. |
| 1.5KE62A-E3/54 | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101), E3 suffix only (no HE3 qualification) | Lacks automotive qualification; acceptable for industrial/commercial power supplies where AEC-Q101 is not mandated | Choose for cost-sensitive non-automotive applications requiring identical form, fit, and function without automotive validation. |
Compared with 1.5KE62CHE3/73, SMBJ64A offers smaller footprint but reduced surge capacity, while 1.5KE62A-E3/54 matches mechanical and electrical behavior but omits AEC-Q101 validation-making the HE3/73 variant essential for automotive Tier-1 designs requiring certified reliability.
Availability
1.5KE62CHE3/73 is available at Aetrix Electronics and suitable for automotive power distribution units, industrial sensor signal conditioning, and telecom line card surge protection requiring stable component supply, traceable sourcing, and long-term lifecycle support.
Supply support for 1.5KE62CHE3/73 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 reliability, power handling, and automotive qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness, consistency, and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance for 1.5KE62CHE3/73?
The 1.5KE62CHE3/73 has a specified breakdown voltage range of 58.9 V to 65.1 V at 1 mA test current, corresponding to ±5 % tolerance around the nominal 62 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable design margining in 48 V and 60 V systems where overvoltage thresholds must be precisely controlled.
Is 1.5KE62CHE3/73 suitable for bidirectional transient protection?
No, 1.5KE62CHE3/73 is a unidirectional TVS diode, indicated by the "A" suffix and absence of "CA" in the part number. It protects against positive transients only-clamping from cathode to anode-and requires correct polarity orientation in-circuit. For bidirectional protection, Vishay offers variants such as 1.5KE62CAHE3/73, which suppresses both positive and negative surges symmetrically.
Does 1.5KE62CHE3/73 meet AEC-Q101 qualification?
Yes, 1.5KE62CHE3/73 is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's 88301 datasheet (Revision 09-Aug-2022). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD, making 1.5KE62CHE3/73 appropriate for automotive powertrain, body control, and ADAS modules requiring certified reliability.
What is the maximum clamping voltage of 1.5KE62CHE3/73 under surge conditions?
The maximum clamping voltage (VC) of 1.5KE62CHE3/73 is 85.0 V at 17.6 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value represents the upper limit of voltage seen by downstream components during worst-case surge events and is critical for verifying that protected ICs remain within their absolute maximum ratings.
How does the thermal resistance of 1.5KE62CHE3/73 affect PCB layout?
With a junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, 1.5KE62CHE3/73 efficiently transfers heat from the die to its axial leads. To maximize thermal performance, designers should use ≥0.5 mm wide copper traces connected to both leads and avoid excessive trace length-especially on the cathode side-to maintain low impedance and prevent localized heating during repetitive surge events.
1.5KE62CHE3/73 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):
- 50.2V
- Voltage - Breakdown (Min):
- 55.8V
- Voltage - Clamping (Max) @ Ipp:
- 89V
- Current - Peak Pulse (10/1000µs):
- 16.9A
- 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
1.5KE62CHE3/73 FAQ
1.How can I place an order for 1.5KE62CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE62CHE3/73 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 1.5KE62CHE3/73 reliable?
The price and inventory of 1.5KE62CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE62CHE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE62CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE62CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE62CHE3/73?
1.5KE62CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE62CHE3/73 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 1.5KE62CHE3/73?
For technical support, including 1.5KE62CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE62CHE3/73 requirements.
6.How does Aetrix verify that 1.5KE62CHE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE62CHE3/73 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 1.5KE62CHE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE62CHE3/73?
All 1.5KE62CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE62CHE3/73, 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 1.5KE62CHE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE62CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE62CHE3/73 Tags
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