1.5KE51A 1.5KE51A is a 1500W TVS diode from Littelfuse with 43.6V reverse standoff voltage and 70.1V clamping voltage. It comes in a through-hole DO-201 package.
Mfr Part #:

1.5KE51A

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
1.5KE51A is a 1500W TVS diode from Littelfuse with 43.6V reverse standoff voltage and 70.1V clamping voltage. It comes in a through-hole DO-201 package.
Total Stock: 713 pcs

1.5KE51A Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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393 pcs
393 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
320 pcs
320 pcs On Request 100 On Request On Request On Request On Request On Request

1.5KE51A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Clamping Voltage (V_C)
Current
Halogen Free
Industrial Grade
Junction to Ambient Thermal Resistance (RθJA)
Junction to Lead Thermal Resistance (RθJL)
Lead Style
Maximum Instantaneous Forward Voltage (V_F)
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Peak Forward Surge Current (I_FSM)
Peak Pulse Current (I_PP)
Peak Pulse Power Dissipation (P_PPM)
Power
Power Line Protection
Response Time
Reverse Standoff Voltage (V_RWM)
SVHC Present
Steady State Power Dissipation (P_D)
Storage Temperature
Supplier Device Package
Termination Finish
Type
Unidirectional Channels
Voltage

1.5KE51A Description

Short technical summary and product information.

The 1.5KE51A is a 1500W transient voltage suppression diode from Littelfuse designed for protecting sensitive electronic equipment from voltage transients. It features a reverse standoff voltage of 43.6V and a clamping voltage of 70.1V at 21.7A peak pulse current. The device has a fast response time of less than 1.0ps and is suitable for general purpose applications. It is packaged in a through-hole DO-201 (DO-201AA, DO-27) axial leaded package with matte tin lead-free plating. The operating temperature range is -55°C to 175°C. The device is RoHS compliant and halogen free.

1.5KE51A Quick Information

Product Type: TVS Diode
Series: 1.5KE
Canonical Name: 1.5KE51A TVS Diode
Subcategory: TVS Diodes

1.5KE51A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

1.5KE51A Features

  • 1500W peak pulse power dissipation.
  • Fast response time under 1.0ps.
  • 43.6V reverse standoff voltage.
  • Through-hole DO-201 package.
  • RoHS and halogen free compliant.

1.5KE51A Applications

  • Protects I/O interfaces from voltage transients.
  • Ideal for VCC bus protection in electronics.
  • Used in telecom, computer, and industrial circuits.
  • Suitable for general purpose transient suppression.

1.5KE51A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1.5KE51A?

43.6V.

What is the clamping voltage of the 1.5KE51A?

70.1V.

What is the peak pulse current rating?

21.7A.

What is the peak pulse power dissipation?

1500W (10/1000μs waveform).

What package does the 1.5KE51A come in?

DO-201 (DO-201AA, DO-27, Axial).

What is the operating temperature range?

-55°C to 175°C.

Is the 1.5KE51A RoHS compliant?

Yes, RoHS3 compliant (unverified).

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