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Littelfuse 15KE91CA Transient Voltage Suppression Diode

The Littelfuse 1.5KE series transient voltage suppression (TVS) diodes are specifically engineered to safeguard sensitive electronic equipment from damaging voltage transients induced by lightning and other transient voltage events. These axial-leaded diodes offer a 1500W peak pulse power dissipation and are characterized by their low incremental surge resistance, fast response time, and robust construction. They are commonly employed in telecom, computer, industrial, and consumer electronic applications to protect I/O interfaces, VCC bus lines, and other vulnerable circuits. The 1.5KE9.1CA, in particular, provides reliable protection with its specified breakdown voltage and clamping characteristics, ensuring the longevity and operational integrity of connected devices.

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Part No:1.5KE91CA
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Stock:2000
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Source:DigiKey
Part No:1.5KE91CA
Stock:4170
Inv Date:05-28-2026
Price: Unit price: $0.26488
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Source:DigiKey
Part No:1.5KE9.1CA
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Part No:1.5KE9.1CA
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Inv Date:05-28-2026
Price: Unit price: $0.1843
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Source:DigiKey
Part No:1.5KE9.1CA
Stock:2000
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Part No:1.5KE9.1CA
Stock:1037
Inv Date:05-28-2026
Price: Unit price: $0.26488
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Source:DigiKey
Part No:1.5KE9.1CA
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Inv Date:05-28-2026
Price: Unit price: $0.22894
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Part No:1.5KE9.1CA
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Inv Date:05-28-2026
Price: Unit price: $0.87
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Part No:1.5KE91CA
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Price: Unit price: $0.55
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Part No:1.5KE91CA
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Part No:1.5KE91CA
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Price: Unit price: $0.1671
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Part No:1.5KE9.1CA
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Part No:1.5KE9.1CA
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Inv Date:05-28-2026
Price: Unit price: $0.1671
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Part No:1.5KE9.1CA
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Part No:1.5KE9.1CA
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Price: Unit price: $0.2498
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Part No:1.5KE91CA
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Price: Unit price: $0.1671
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Inv Date:05-28-2026
Price: Unit price: $0.2498
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Part No:1.5KE91CA
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Price: Unit price: $0.205
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Part No:1.5KE91CA
Stock:500
Inv Date:05-29-2026
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Littelfuse 15KE91CA Transient Voltage Suppression Diode Specifications:

  • Peak Pulse Power Dissipation: 1500 W
  • Steady State Power Dissipation: 6.5 W
  • Peak Forward Surge Current: 200 A
  • Maximum Instantaneous Forward Voltage: 3.5/5.0 V
  • Operating Junction and Storage Temperature Range: -55 to 175 °C
  • Typical Thermal Resistance Junction to Lead: 15 °C/W
  • Typical Thermal Resistance Junction to Ambient: 75 °C/W
  • Breakdown Voltage (Uni): 7.78 V
  • Breakdown Voltage (Bi): 8.65 V
  • Clamping Voltage: 13.4 V
  • Reverse Leakage Current: < 50 µA
  • Agency Approvals: E230531

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Frequently Asked Questions

Where can I buy Littelfuse 15KE91CA?

You can click on the BUY or RFQ button to purchase 15KE91CA from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part 15KE91CA?

You can download the 15KE91CA datasheet or visit the Littelfuse website for support.

Who is the manufacturer of 15KE91CA?

Littelfuse

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