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Vishay General Semiconductor - Diodes Division 1.5KE62A-E3/51
- Part No.:
- 1.5KE62A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE62A-E3/51.pdf
- Description:
- TVS DIODE 53VWM 85VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,528
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Product details
Overview
1.5KE62A-E3/51 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary-level 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), 85 V maximum clamping voltage (VC) at 17.6 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed to safeguard MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients in industrial and automotive systems.
For engineers reviewing the 1.5KE62A-E3/51 datasheet, 1.5KE62A-E3/51 pinout, 1.5KE62A-E3/51 application, or 1.5KE62A-E3/51 equivalent, this device delivers verified clamping performance, JEDEC-standard 1.5KE package compatibility, RoHS-compliant matte tin leads, and thermal robustness up to 175 °C junction temperature - critical for high-reliability surge protection design in power supply inputs and I/O line conditioning.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its breakdown threshold (58.9–65.1 V), it avalanches rapidly (<1 ns response) to divert transient energy away from downstream circuitry. Its 1500 W peak pulse power rating is validated under standardized 10/1000 µs waveform conditions with 0.01% duty cycle, and clamping is sustained by low incremental surge resistance.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15.4 °C/W, enabling reliable operation at TJ = −55 to +175 °C. The device uses glass-passivated silicon junction technology, supports soldering per J-STD-002/JESD 22-B102, and meets UL 94 V-0 flammability requirements via molded epoxy encapsulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 58.9–65.1 V at 1.0 mA - defines precise avalanche initiation threshold for repeatable overvoltage triggering |
| Stand-off Voltage VWM | 53.0 V - maximum continuous reverse operating voltage before leakage rises above 1.0 µA |
| Clamping Voltage VC | 85.0 V at 17.6 A IPPM - limits transient voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power PPPM | 1500 W - sustains single 1 ms transient events without degradation under JEDEC-defined test conditions |
| Peak Pulse Current IPPM | 17.6 A - maximum surge current the device safely clamps at rated VC |
| Operating Temperature | −55 to +175 °C - enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment |
| Leakage Current ID | ≤1.0 µA at VWM - ensures minimal standby power loss and no interference with low-power sensor biasing |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - axial-leaded, molded epoxy body with matte tin-plated leads; dimensions: 0.375" (9.5 mm) lead length, 0.210–0.285" (5.3–7.2 mm) body diameter, 0.038–0.042" (0.96–1.07 mm) lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts only during forward surge events (e.g., reverse polarity faults) |
| Cathode | Avalanche clamping terminal | Marked with color band; connected to higher-potential side; initiates reverse-biased avalanche at VBR to clamp transients |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Provides industry-standard surge immunity for IEC 61000-4-5 Level 4 (4 kV) line-to-line testing |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience damaging overvoltage - critical for protecting high-speed logic and microcontrollers |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance and J-STD-002 solderability standards for automated assembly |
| UL 94 V-0 molding compound | Prevents flame propagation in fault conditions - required for safety-critical power supplies and industrial control cabinets |
Applications
| Industrial Motor Drive Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: Protects 24 V DC input stage of variable-frequency drives from inductive kickback during contactor switching and regenerative braking. IC Role / Device Role / Timing Role: Shunt clamping element placed across bulk capacitor input, absorbing 1500 W transients within <1 ns to prevent MOSFET gate oxide rupture. Use Value: Maintains system uptime by preventing repeated fuse blowing and controller resets caused by repetitive 600 V/100 A switching spikes. |
Use Scenario: Shields 12 V supply rail of BCM modules from load dump pulses (ISO 7637-2 Pulse 5a) and alternator ripple surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected between battery rail and ground, clamping transients up to 85 V while sustaining 175 °C ambient under hood. Use Value: Eliminates need for redundant Zener+capacitor networks, reducing BOM count and PCB area while meeting AEC-Q101 qualification requirements. |
| Telecom DSL Line Interface Protection | Consumer Appliance Mainboard Power Entry |
Use Scenario: Safeguards ADSL/VDSL line interface ICs from lightning-induced surges on outdoor copper pairs (IEC 61000-4-5 10/700 µs). IC Role / Device Role / Timing Role: First-stage protector mounted at RJ-11 jack entry point, limiting voltage to ≤85 V before secondary filtering and isolation stages. Use Value: Enables compliance with GR-1089-CORE telecom safety standards without derating or parallel device stacking. |
Use Scenario: Guards AC-DC converter primary-side rectifier output against mains-borne transients (IEC 61000-4-4 EFT) and capacitor discharge events. IC Role / Device Role / Timing Role: Mounted across bulk electrolytic capacitor terminals to clamp 1500 W surges before they propagate to PWM controller ICs. Use Value: Extends product lifetime by preventing premature failure of optocouplers and gate drivers in washing machines and HVAC controllers. |
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 64 V VBR range (60.8–67.2 V), 600 W PPPM, SMB surface-mount package | Requires PCB re-layout; suited for space-constrained designs where axial leads are impractical | Select when board real estate is limited and thermal management allows lower power rating |
| 1.5KE62CA | Bidirectional variant with same VBR (58.9–65.1 V) but symmetrical clamping in both polarities | Required for AC-coupled or floating signal lines where polarity reversal occurs (e.g., RS-485, CAN bus) | Choose only if bidirectional protection is mandated; not a drop-in replacement due to polarity difference |
Compared with 1.5KE62A-E3/51, SMBJ64A trades peak power and through-hole mounting for compactness, while 1.5KE62CA adds bidirectional capability at the cost of unnecessary symmetry in unidirectional DC applications - making 1.5KE62A-E3/51 optimal for cost-sensitive, high-energy, fixed-polarity rail protection.
Availability
1.5KE62A-E3/51 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom line interfaces, and consumer appliance power entry circuits requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE62A-E3/51 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-grade qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting applications demanding >1000 W surge immunity, wide temperature operation, and UL/IEC compliance without external heatsinking.
FAQ
What is the exact breakdown voltage range for 1.5KE62A-E3/51?
The 1.5KE62A-E3/51 has a guaranteed breakdown voltage (VBR) range of 58.9 V to 65.1 V at a test current of 1.0 mA, as specified in the Vishay datasheet document 88301. This tolerance ensures consistent avalanche initiation across production lots and supports reliable overvoltage threshold setting in protection circuits using the 1.5KE62A-E3/51.
Does 1.5KE62A-E3/51 meet automotive qualification standards?
The base 1.5KE62A-E3/51 is RoHS-compliant commercial-grade and not AEC-Q101 qualified. However, Vishay offers the 1.5KE62AHE3_B variant - identical electrically but with AEC-Q101 qualification - for automotive applications. Engineers must specify the HE3 suffix version when automotive-grade reliability is required for the 1.5KE62A family.
Can 1.5KE62A-E3/51 be used in bidirectional signal protection?
No - the 1.5KE62A-E3/51 is strictly unidirectional, with cathode marked by a color band. For bidirectional protection (e.g., AC lines or differential buses), the 1.5KE62CA variant must be used. Using 1.5KE62A-E3/51 in bidirectional configurations risks forward conduction damage during negative half-cycles.
What is the maximum clamping voltage of 1.5KE62A-E3/51 at rated surge current?
The 1.5KE62A-E3/51 clamps to a maximum of 85.0 V when subjected to its rated peak pulse current of 17.6 A (IPPM), measured under the standard 10/1000 µs waveform. This VC value directly determines the maximum transient voltage imposed on protected components and is critical for ensuring downstream ICs remain within absolute maximum ratings.
How does the thermal resistance of 1.5KE62A-E3/51 affect its power handling?
With a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, the 1.5KE62A-E3/51 efficiently transfers heat from the silicon die to its leads, enabling sustained 6.5 W power dissipation at TL = 75 °C. This low RθJL supports high-reliability operation without external heatsinking - a key advantage over SMD TVS devices with higher thermal impedance.
1.5KE62A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 17.6A
- 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
1.5KE62A-E3/51 FAQ
1.How can I place an order for 1.5KE62A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE62A-E3/51 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 1.5KE62A-E3/51 reliable?
The price and inventory of 1.5KE62A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE62A-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE62A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE62A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE62A-E3/51?
1.5KE62A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE62A-E3/51 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 1.5KE62A-E3/51?
For technical support, including 1.5KE62A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE62A-E3/51 requirements.
6.How does Aetrix verify that 1.5KE62A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE62A-E3/51 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 1.5KE62A-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE62A-E3/51?
All 1.5KE62A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE62A-E3/51, 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 1.5KE62A-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE62A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE62A-E3/51 Tags
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