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Littelfuse SP721ABTG ESD Protection Array

The SP721 series provides high-performance ESD and overvoltage protection for sensitive input circuits using SCR/Diode bipolar structures. Designed for fast triggering and capable of handling peak currents up to 43A, it supports multiple input lines with robust human body model ESD protection exceeding 15kV. Suitable for applications like microprocessor and logic input protection, data bus safeguarding, and analog device protection, the SP721 offers reliable transient suppression with low input capacitance of 3pF and operates over a temperature range from -40°C to 105°C. Its compact DIP and SOIC packages ensure easy integration into various electronic designs.

Authorized Distributors
Source:Newark
Part No:SP721ABTG
Stock:1546
Inv Date:05-28-2026
Price: Unit price: $3.04
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Source:DigiKey
Part No:SP721ABTG
Stock:10057
Inv Date:05-28-2026
Price: Unit price: $3.77
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Part No:SP721ABTG
Stock:7282
Inv Date:05-29-2026
Price: Unit price: $3.48
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Part No:SP721ABTG
Stock:0
Inv Date:05-28-2026
Price: Unit price: $2.59
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Part No:SP721ABTG
Stock:2500
Inv Date:05-28-2026
Price: Unit price: $1.07
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Part No:SP721ABTG
Stock:2500
Inv Date:05-28-2026
Price: Unit price: $1.07
Buy/RFQ:
Part No:SP721ABTG
Stock:12500
Inv Date:05-28-2026
Price: Unit price: $1.05
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Littelfuse SP721ABTG ESD Protection Array Specifications:

  • Package Types: DIP, SOIC
  • Maximum Supply Voltage: +35 V
  • Operating Voltage Range: -2.1 V to +30 V
  • Peak Surge Current Capability: 43A (IEC 61000-4-5)
  • ESD Protection: >15kV (MilStd-3015.7 modified), >15kV (IEC 61000-4-2 air discharge), >4kV (direct discharge)
  • ESD Model: HBM Standard
  • Voltage Clamp: >30V (single-ended), >15V (differential)
  • Input Capacitance: 3pF typical
  • Trigger Threshold: 1V above V+ or below V-
  • Response Time: ~2ns
  • Temperature Range: -40°C to 105°C
  • Peak Current per Pin: 8A (Level 4, air discharge), 15kV
  • Surge Handling: 43A (IEC 61000-4-5)
  • Soldering Conditions: Reflow at max 260°C, peak 260°C
  • Lead Material: Tin-plated
  • Flammability Rating: UL 94-0

Buy the Littelfuse SP721ABTG – Reliable ESD and Overvoltage Protection for Industrial Applications

Secure your sensitive electronic circuits with the Littelfuse SP721ABTG array, offering superior ESD and overvoltage protection for microprocessors, data lines, and analog inputs. Featuring SCR/Diode bipolar structures, fast response times, and high peak current capabilities, its compact design and wide operating temperature range ensure dependable performance in industrial environments. Order online today to benefit from rapid delivery and trusted quality, safeguarding your critical systems from transient voltage events efficiently and reliably.

Buy Littelfuse SP721ABTG now and experience unmatched reliability and performance in sensitive circuit protection.

Frequently Asked Questions

Where can I buy Littelfuse SP721ABTG?

You can click on the BUY or RFQ button to purchase SP721ABTG from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part SP721ABTG?

You can download the SP721ABTG datasheet or visit the Littelfuse website for support.

Who is the manufacturer of SP721ABTG?

Littelfuse

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