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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division 1.5KE62-E3/54

Name: 1.5KE62-E3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: 1.5KE62-E3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1.5KE62-E3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-201AA, DO-27, Axial

Datasheet:: 1.5KE62-E3/54.pdf

Description:: TVS DIODE 50.2VWM 89VC 1.5KE

Quantity:: RFQ Add To RFQ list

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Product details

Overview

1.5KE62-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in power rails and signal lines. It features a 62 V breakdown voltage (V_BR = 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, 53.0 V stand-off voltage (V_WM), and operates from –55 °C to +175 °C - used in automotive power supply input stages and industrial DC bus protection.

For engineers reviewing the 1.5KE62-E3/54 datasheet, 1.5KE62-E3/54 pinout, 1.5KE62-E3/54 application, or 1.5KE62-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC-standard 1.5KE package details, thermal derating behavior, clamping performance under surge conditions, and direct alternatives with documented parameter differences.

Technical Context

This TVS diode employs a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-referenced clamping on positive transients only, with a maximum reverse leakage current of 1.0 µA at 53.0 V and forward voltage of 3.5 V at 100 A.

The device complies with JEDEC standards for surge testing (8.3 ms half-sine, 4 pulses/min) and supports repetitive surge duty cycles up to 0.01 %. Thermal design is guided by R_θJA = 75 °C/W and R_θJL = 15.4 °C/W, enabling reliable operation up to T_J = 175 °C with appropriate PCB copper area or lead length management.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR (min/max)	58.9 V / 65.1 V at 1.0 mA - defines precise clamping onset threshold for overvoltage events
V_WM	53.0 V - maximum continuous working voltage before leakage exceeds 1.0 µA
V_C @ I_PPM	85.0 V at 17.6 A - peak clamped voltage during 10/1000 µs surge, limiting downstream stress
P_PPM	1500 W - peak pulse power handling capability per single 10/1000 µs waveform
I_FSM	200 A - non-repetitive forward surge rating (8.3 ms half-sine), critical for inrush or fault-current scenarios
T_J range	–55 °C to +175 °C - wide junction temperature range supports under-hood automotive and industrial environments
Package	JEDEC DO-201AD (Case Style 1.5KE) - axial-leaded, epoxy-molded, UL 94 V-0 rated body

Pinout & Package

1.5KE62-E3/54 uses the standard DO-201AD axial package (Case Style 1.5KE), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. The cathode is marked by a color band on the body; polarity is unidirectional.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unmarked end)	Current entry terminal during forward conduction or reverse clamping	Connected to protected line ground or low-side reference; determines clamping direction
Cathode (banded end)	Current exit terminal during clamping; voltage reference node	Connected to protected IC rail or power input; sets clamping threshold relative to this node

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable V_BR tolerance (±5 %) and long-term reliability under thermal cycling
1500 W peak pulse power (10/1000 µs)	Withstands high-energy surges common in automotive load-dump and industrial switching events
Clamping ratio V_C/V_BR ≈ 1.33	Low ratio ensures tight voltage control during transients, reducing risk of downstream component overstress
Response time < 1 ns	Protects sensitive MOSFET gates and microcontroller I/O before damage occurs
AEC-Q101 qualification available (HE3 suffix)	E3 suffix indicates RoHS-compliant commercial grade; HE3 variants support automotive-grade validation

Applications

Automotive Power Input Protection	Industrial DC Bus Surge Suppression
Use Scenario: Protecting engine control unit (ECU) 12 V input against ISO 7637-2 load dump transients up to 120 V. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and upstream fuse, absorbing energy before it reaches LDOs and MCU power pins. Use Value: Limits peak voltage to ≤85.0 V during 1500 W surge, preventing latch-up or gate oxide rupture in downstream regulators and processors.	Use Scenario: Safeguarding PLC I/O module DC power inputs exposed to inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional shunt protector mounted across +24 V rail and chassis ground, triggered within <1 ns of overvoltage onset. Use Value: Clamps 10/1000 µs surges to 85.0 V while maintaining 53.0 V operating margin, ensuring uninterrupted operation of isolated DC/DC converters.
Telecom Line Interface Protection	Consumer Power Adapter ESD/Transient Guard
Use Scenario: Shielding Ethernet PHY power pins (e.g., PoE midspan injectors) from lightning-induced surges on remote cable runs. IC Role / Device Role / Timing Role: Standoff-rated TVS on 48 V bias rail, activated only during >53.0 V transients, preserving normal-mode noise immunity. Use Value: Delivers 1500 W pulse handling without degradation after repeated 10/1000 µs events, meeting ITU-T K.20/21 requirements.	Use Scenario: Adding secondary-level surge immunity to USB-C PD adapter output rails against user-handling ESD and AC-line coupling. IC Role / Device Role / Timing Role: Final-stage clamping device downstream of primary transformer, referenced to output GND to suppress overshoot during regulation faults. Use Value: Maintains 53.0 V working voltage margin while clamping 17.6 A surges to 85.0 V, preventing overvoltage shutdown in connected devices.

Automotive Power Input Protection

Industrial DC Bus Surge Suppression

Use Scenario: Protecting engine control unit (ECU) 12 V input against ISO 7637-2 load dump transients up to 120 V.

IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and upstream fuse, absorbing energy before it reaches LDOs and MCU power pins.

Use Value: Limits peak voltage to ≤85.0 V during 1500 W surge, preventing latch-up or gate oxide rupture in downstream regulators and processors.

Use Scenario: Safeguarding PLC I/O module DC power inputs exposed to inductive kickback from solenoid drivers.

IC Role / Device Role / Timing Role: Unidirectional shunt protector mounted across +24 V rail and chassis ground, triggered within <1 ns of overvoltage onset.

Use Value: Clamps 10/1000 µs surges to 85.0 V while maintaining 53.0 V operating margin, ensuring uninterrupted operation of isolated DC/DC converters.

Telecom Line Interface Protection

Consumer Power Adapter ESD/Transient Guard

Use Scenario: Shielding Ethernet PHY power pins (e.g., PoE midspan injectors) from lightning-induced surges on remote cable runs.

IC Role / Device Role / Timing Role: Standoff-rated TVS on 48 V bias rail, activated only during >53.0 V transients, preserving normal-mode noise immunity.

Use Value: Delivers 1500 W pulse handling without degradation after repeated 10/1000 µs events, meeting ITU-T K.20/21 requirements.

Use Scenario: Adding secondary-level surge immunity to USB-C PD adapter output rails against user-handling ESD and AC-line coupling.

IC Role / Device Role / Timing Role: Final-stage clamping device downstream of primary transformer, referenced to output GND to suppress overshoot during regulation faults.

Use Value: Maintains 53.0 V working voltage margin while clamping 17.6 A surges to 85.0 V, preventing overvoltage shutdown in connected devices.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ64A	Lower P_PPM (600 W), smaller SMB package (surface-mount), V_BR = 71.1–78.6 V, V_C = 103 V @ 5.8 A	Designed for PCB space-constrained designs; not suitable for 1500 W surge environments	Select when board area is limited and surge energy is ≤600 W; verify thermal relief for SMB footprint.
1.5KE62AHE3_A	Identical electrical specs, but AEC-Q101 qualified and HE3 whisker-tested (JESD 201 Class 2); same DO-201AD package	Approved for automotive under-hood use; requires automotive PPAP documentation	Choose for automotive OEM programs requiring AEC-Q101 compliance; otherwise 1.5KE62-E3/54 suffices for commercial/industrial use.

Compared with 1.5KE62-E3/54, SMBJ64A trades surge capacity for compactness and surface-mount compatibility, while 1.5KE62AHE3_A adds automotive qualification without altering electrical performance - enabling drop-in replacement where AEC-Q101 is mandated.

Availability

1.5KE62-E3/54 is available at Aetrix Electronics and suitable for automotive power input protection, industrial DC bus surge suppression, telecom line interface protection, and consumer power adapter ESD/Transient guard applications requiring stable component supply and traceable sourcing.

Supply support for 1.5KE62-E3/54 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.

The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against lightning, load dump, and inductive switching is mission-critical.

FAQ

What is the breakdown voltage tolerance for 1.5KE62-E3/54?

The 1.5KE62-E3/54 has a specified breakdown voltage range of 58.9 V to 65.1 V at 1.0 mA test current, representing a ±5 % tolerance around the nominal 62 V rating. This tight V_BR window ensures predictable clamping onset across production lots and temperature extremes, critical for consistent protection in automotive and industrial power rails.

Is 1.5KE62-E3/54 suitable for bidirectional transient protection?

No, 1.5KE62-E3/54 is a unidirectional TVS diode - its cathode band indicates polarity, and it clamps only positive transients relative to the cathode. For bidirectional protection, Vishay offers the 1.5KE62CA variant. Using 1.5KE62-E3/54 in bidirectional applications risks failure during negative excursions beyond its reverse standoff rating.

What does the "-E3/54" suffix mean in 1.5KE62-E3/54?

The "E3" denotes RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance. The "/54" specifies the preferred packaging code: 13-inch paper tape and reel, 1400 units per reel. This format ensures automated SMT placement compatibility and traceability for high-volume manufacturing of 1.5KE62-E3/54.

How does thermal derating affect 1.5KE62-E3/54's surge capability above 25 °C?

Per Figure 2 in the Vishay datasheet, 1.5KE62-E3/54's peak pulse power de-rates linearly above 25 °C ambient: at 75 °C, it retains ~75 % of rated 1500 W; at 125 °C, ~50 %. This reflects junction-to-ambient thermal resistance (R_θJA = 75 °C/W); effective PCB copper area or shorter lead lengths improve actual derating performance for 1.5KE62-E3/54.

Can 1.5KE62-E3/54 replace 1N6290A in existing designs?

Yes - 1.5KE62-E3/54 and 1N6290A are functionally identical per Vishay's cross-reference table (Document 88301), sharing identical V_BR, V_WM, V_C, P_PPM, and package. Both are unidirectional DO-201AD TVS diodes with 62 V nominal breakdown. No layout or schematic changes are needed when substituting 1.5KE62-E3/54 for 1N6290A.

1.5KE62-E3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-201AA, DO-27, Axial

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

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:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 1.5KE

1.5KE62-E3/54 FAQ

1.How can I place an order for 1.5KE62-E3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for 1.5KE62-E3/54 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 1.5KE62-E3/54 reliable?

The price and inventory of 1.5KE62-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE62-E3/54 is usually 5 days.

3.What payment methods are accepted for 1.5KE62-E3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE62-E3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1.5KE62-E3/54?

1.5KE62-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1.5KE62-E3/54 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 1.5KE62-E3/54?

For technical support, including 1.5KE62-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE62-E3/54 requirements.

6.How does Aetrix verify that 1.5KE62-E3/54 is sourced from the original manufacturer or authorized distributors?

All 1.5KE62-E3/54 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 1.5KE62-E3/54 meets industry standards.

7.What is the process for return or replacement of 1.5KE62-E3/54?

All 1.5KE62-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE62-E3/54, 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 1.5KE62-E3/54 part is unused and in its original packaging.

Return procedure for 1.5KE62-E3/54:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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