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Littelfuse 15KE91A Unidirectional Transient Voltage Suppression

Littelfuse 1.5KE series diodes are single unidirectional devices offering robust protection against voltage transients. These diodes are characterized by their glass passivate chip, providing a fast response time and excellent clamping capability. They are commonly used in power supplies, automotive electronics, and industrial control systems to safeguard against damage from inductive switching, lightning strikes, and other transient events. The plastic material used in their construction is UL recognition 94V-0 rated, ensuring fire safety. The 1.5KE9.1A specifically offers a peak power dissipation of 1500W and a clamping voltage of 125V, making it suitable for a wide range of applications requiring reliable overvoltage protection.

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Source:Newark
Part No:1.5KE91A
Stock:1200
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Price: Unit price: $0.196
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Part No:1.5KE91A
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Source:DigiKey
Part No:1.5KE91A
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Price: Unit price: $0.1843
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Source:DigiKey
Part No:1.5KE91A
Stock:2000
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Price: Unit price: $0.45
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Source:DigiKey
Part No:1.5KE91A
Stock:648
Inv Date:05-28-2026
Price: Unit price: $0.9
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Source:DigiKey
Part No:1.5KE9.1A
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.21789
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Source:DigiKey
Part No:1.5KE9.1A
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.1843
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Source:DigiKey
Part No:1.5KE9.1A
Stock:2000
Inv Date:05-28-2026
Price: Unit price: $0.45
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Authorized Distributors
Source:DigiKey
Part No:1.5KE9.1A
Stock:121
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Price: Unit price: $1.06
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Source:DigiKey
Part No:1.5KE9.1A
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Inv Date:05-28-2026
Price: Unit price: $0.22342
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Part No:1.5KE9.1A
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Inv Date:05-28-2026
Price: Unit price: $0.61
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Part No:1.5KE91A
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Inv Date:05-28-2026
Price: Unit price: $0.84
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Part No:1.5KE91A
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Inv Date:05-28-2026
Price: Unit price: $0.2259
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Part No:1.5KE91A
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Inv Date:05-28-2026
Price: Unit price: $0.1623
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Part No:1.5KE9.1A
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Inv Date:05-28-2026
Price: Unit price: $0.2259
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Part No:1.5KE9.1A
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Inv Date:05-28-2026
Price: Unit price: $0.1623
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Part No:1.5KE9.1A
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Inv Date:05-28-2026
Price: Unit price: $0.1623
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Authorized Distributors
Part No:1.5KE9.1A
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.2259
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Part No:1.5KE91A
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.1623
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Part No:1.5KE91A
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.2259
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Part No:1.5KE91A
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Inv Date:05-28-2026
Price: Unit price: $0.205
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Part No:1.5KE91A
Stock:2240
Inv Date:05-29-2026
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Source:Arrow EU
Part No:1.5KE91A
Stock:1233
Inv Date:05-29-2026
Price: N/A
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Littelfuse 15KE91A Unidirectional Transient Voltage Suppression Specifications:

  • Peak Power Dissipation at TA = 25°C: Minimum 1,500 Watts
  • Peak Forward Surge Current: 200 Amperes
  • Steady State Power Dissipation at Tl= 75°C: 5 Watts
  • Operating Temperature Range: -55 to + 150 °C
  • Storage Temperature Range: -55 to + 175 °C
  • Reverse Standoff Voltage: 77.8 V
  • Breakdown Voltage Min: 86.5 V
  • Breakdown Voltage Max: 95.5 V
  • Breakdown Current: 1 mA
  • Maximum Reverse Leakage: 5 μA
  • Maximum Clamping Voltage: 125 V
  • Maximum Peak Pulse Current: 12 A
  • Maximum Voltage Temperature Variation of Bv: 0.106 mV/°C

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Frequently Asked Questions

Where can I buy Littelfuse 15KE91A?

You can click on the BUY or RFQ button to purchase 15KE91A from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part 15KE91A?

You can download the 15KE91A datasheet or visit the Littelfuse website for support.

Who is the manufacturer of 15KE91A?

Littelfuse

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