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Vishay General Semiconductor - Diodes Division 1.5KE62HE3/73
- Part No.:
- 1.5KE62HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE62HE3/73.pdf
- Description:
- TVS DIODE 50.2VWM 89VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,644
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Product details
Overview
1.5KE62HE3/73 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 IT = 1.0 mA), 53.0 V maximum working voltage (VWM), 85.0 V clamping voltage (VC) at 17.6 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 interface protection.
For engineers reviewing the 1.5KE62HE3/73 datasheet, 1.5KE62HE3/73 pinout, 1.5KE62HE3/73 application, or 1.5KE62HE3/73 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), lead-free RoHS-compliant packaging, and real-world clamping performance data for surge immunity validation.
Technical Context
The 1.5KE62HE3/73 operates as a silicon avalanche diode with glass-passivated junction, delivering bidirectional-capable transient suppression only when configured as CA-suffix variants - this part is unidirectional, with cathode marked by color band. Its clamping action responds in <1 ns, enabling protection of MOSFET gates and MCU I/O against ESD and lightning-induced surges.
It is rated for 175 °C maximum junction temperature, supports 200 A non-repetitive forward surge current (IFSM), and exhibits low incremental surge resistance - critical for maintaining low VC under high-current transients. The device is qualified to AEC-Q101 and meets JESD 201 Class 2 whisker resistance (HE3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 58.9 V / 65.1 V at 1.0 mA - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 53.0 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 85.0 V at 17.6 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak pulse power handling capability, enabling robust protection against IEC 61000-4-5 Level 4 surges |
| IFSM | 200 A - single half-sine surge current rating (8.3 ms), supporting motor drive and relay coil snubbing |
| TJ max. | 175 °C - extended thermal range allows use in under-hood automotive environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, guiding heatsinking requirements for sustained power dissipation |
Pinout & Package
Package: Case Style 1.5KE - axial-leaded DO-201AD molded epoxy package, UL 94 V-0 rated, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; forms current path during reverse-biased clamping |
| Cathode | High-side connection point | Marked with color band; connected to protected line - conducts avalanche current into ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring zero-failure field performance |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under high-temperature/humidity bias, eliminating latent short-circuit risk in sealed assemblies |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) without derating in standard PCB layouts |
| Clamping response time <1 ns | Outperforms MOVs and polymer-based protectors, preserving signal integrity in high-speed sensor interfaces |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary shunt clamp placed upstream of LDO regulators and CAN transceivers to limit transient voltage to safe levels. Use Value: Clamps to 85.0 V during 17.6 A surge, preventing damage to 3.3 V/5 V logic and analog front-ends while meeting AEC-Q101 stress requirements. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to EFT (IEC 61000-4-4) and surge coupling. IC Role / Device Role / Timing Role: Unidirectional TVS placed across sensor output terminals to divert fast transients before reaching PLC analog input stage. Use Value: Sub-1 ns response ensures clamping occurs before sensitive op-amps or ADCs experience overvoltage - validated with 10/1000 µs waveform testing. |
| DC Motor Drive Snubber | Telecom Line Interface Protection |
Use Scenario: Flyback voltage suppression across brushed DC motors in HVAC actuators and window lift modules. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing inductive kickback energy during MOSFET turn-off. Use Value: 200 A IFSM rating handles repetitive 8.3 ms surges; 1500 W PPPM prevents thermal runaway during stall conditions. |
Use Scenario: Secondary-side protection on Ethernet PoE injectors and DSL line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff protection element between transformer secondary and PHY IC, complementing primary-side GDTs. Use Value: 53.0 V VWM allows operation across 48 V nominal PoE rails; 85.0 V VC ensures PHY ICs remain within absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), VBR = 71.1–78.6 V | Preferred for space-constrained PCBs where 1500 W is not required; unsuitable for ISO 7637-2 Pulse 5a compliance | Select when board area is limited and surge energy is ≤600 W; verify thermal derating for continuous operation. |
| 1.5KE62A-E3/54 | Same electrical specs but commercial-grade (non-AEC-Q101), E3 suffix only (JESD 201 Class 1A whisker test) | Acceptable for industrial/commercial equipment without automotive qualification mandates | Choose for cost-sensitive non-automotive designs where AEC-Q101 and Class 2 whisker resistance are not required. |
Compared with 1.5KE62HE3/73, SMBJ64A trades peak power and qualification for compactness, while 1.5KE62A-E3/54 retains identical protection performance but omits automotive reliability validation - making 1.5KE62HE3/73 the sole option for AEC-Q101-compliant, high-energy surge environments.
Availability
1.5KE62HE3/73 is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial sensor interfaces, DC motor snubbing, and telecom line protection requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE62HE3/73 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, precision, and automotive-grade qualification.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure due to voltage surges must be eliminated.
FAQ
What is the breakdown voltage tolerance of the 1.5KE62HE3/73?
The 1.5KE62HE3/73 has a specified breakdown voltage range of 58.9 V to 65.1 V at test current IT = 1.0 mA. This ±5% tolerance ensures consistent clamping behavior across production lots and supports predictable circuit design margins for overvoltage protection schemes using the 1.5KE62HE3/73.
Is the 1.5KE62HE3/73 suitable for automotive applications?
Yes, the 1.5KE62HE3/73 is AEC-Q101 qualified and meets JESD 201 Class 2 whisker resistance requirements. Its 175 °C maximum junction temperature, glass-passivated junction, and 1500 W surge rating make it appropriate for under-hood and chassis-mounted automotive systems - including those using the 1.5KE62HE3/73 in power supply rail protection per ISO 7637-2.
What is the clamping voltage of the 1.5KE62HE3/73 at its rated peak pulse current?
The 1.5KE62HE3/73 clamps to a maximum of 85.0 V at its rated peak pulse current of 17.6 A (10/1000 µs waveform). This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuits during worst-case surge events - a key parameter for validating compatibility with downstream ICs used alongside the 1.5KE62HE3/73.
Does the 1.5KE62HE3/73 have polarity marking, and how is it identified?
Yes, the 1.5KE62HE3/73 is unidirectional and features a cathode identification band - a visible color stripe near one lead end. This band marks the cathode terminal, which must be connected toward the higher-potential side of the protected line. Correct orientation is essential for proper clamping function and is documented in the 1.5KE62HE3/73 mechanical drawings and application notes.
How does the 1.5KE62HE3/73 compare to bidirectional TVS diodes like 1.5KE62CA?
The 1.5KE62HE3/73 is unidirectional and requires correct polarity installation, whereas 1.5KE62CA provides symmetrical clamping for AC or floating lines. The 1.5KE62HE3/73 offers tighter VBR tolerance and lower leakage at VWM, but cannot replace 1.5KE62CA in bidirectional applications. Selection depends strictly on circuit topology - the 1.5KE62HE3/73 is optimal for DC rail protection with known polarity.
1.5KE62HE3/73 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):
- 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
1.5KE62HE3/73 FAQ
1.How can I place an order for 1.5KE62HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE62HE3/73 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 1.5KE62HE3/73 reliable?
The price and inventory of 1.5KE62HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE62HE3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE62HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE62HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE62HE3/73?
1.5KE62HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE62HE3/73 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 1.5KE62HE3/73?
For technical support, including 1.5KE62HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE62HE3/73 requirements.
6.How does Aetrix verify that 1.5KE62HE3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE62HE3/73 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 1.5KE62HE3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE62HE3/73?
All 1.5KE62HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE62HE3/73, 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 1.5KE62HE3/73 part is unused and in its original packaging.
Return procedure for 1.5KE62HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE62HE3/73 Tags
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