PESD3USB3S/CX Equivalent & Substitute Parts

Part Overview

The PESD3USB3S/CX is a Transient Voltage Suppressor (TVS) diode manufactured by Nexperia USA Inc., designed for protection in high-speed data interfaces. This component is rated for 8A peak pulse current (8/20µs) and operates across the temperature range of -40°C to 85°C. The device is housed in a 15-WLCSP (2.37x1.17mm) surface mount package and is suitable for HDMI and USB applications.

The PESD3USB3S/CX has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

PESD3USB3S/CX

Nexperia USA Inc.In Stock: 5514PESD3USB3S/CX Datasheet

Current PartRFQ

PESD3USB3S/CZ

Nexperia USA Inc.In Stock: 770PESD3USB3S/CZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PESD3USB3S/CX is determined by the following critical parameters:

• Breakdown voltage minimum of 6V
• Peak pulse current rating of 8A (8/20µs)
• Capacitance of 0.45pF @ 1MHz
• Surface mount package type: 15-WLCSP (2.37x1.17mm)
• Zener diode type classification
• Applications: HDMI and USB protection
• RoHS3 compliance and MSL Level 1 rating

The substitute part PESD3USB3S/CZ meets all critical electrical and mechanical parameters required for direct substitution. Both parts share identical breakdown voltage, peak pulse current specifications, capacitance characteristics, and physical package dimensions. The primary distinction is the packaging format (Cut Tape vs. Tape & Reel) and extended operating temperature range of the substitute.

Parameter Comparison

Engineering Selection Recommendations

The PESD3USB3S/CZ is the manufacturer-recommended substitute for the obsolete PESD3USB3S/CX. Both components maintain identical electrical specifications for breakdown voltage, peak pulse current, and capacitance characteristics. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The PESD3USB3S/CZ offers an extended operating temperature range (-40°C to 125°C compared to -40°C to 85°C), providing additional thermal margin for applications operating in elevated ambient conditions. Both parts carry ROHS3 compliance and MSL Level 1 ratings, meeting regulatory and environmental requirements.

The packaging format difference (Cut Tape vs. Tape & Reel) does not affect electrical or mechanical compatibility. Selection between packaging formats depends on production volume and assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can PESD3USB3S/CZ be used as a direct replacement for PESD3USB3S/CX?

A: Yes. Both parts share identical electrical specifications including 6V minimum breakdown voltage, 8A peak pulse current (8/20µs), and 0.45pF capacitance at 1MHz. The physical package dimensions (15-WLCSP, 2.37x1.17mm) are identical, enabling direct PCB-level substitution.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging is supplied in individual strips, suitable for lower-volume applications and manual assembly. Tape & Reel (TR) packaging is supplied on continuous reels, optimized for high-volume automated assembly processes. Both formats contain the same component with identical electrical and mechanical properties.

Q: Does the extended operating temperature range of PESD3USB3S/CZ affect compatibility?

A: No. The extended temperature range (-40°C to 125°C) of the substitute part is a superset of the original part's range (-40°C to 85°C). This provides additional operational margin without introducing any compatibility issues.

Q: Are there any compliance or certification differences between the two parts?

A: Both parts maintain identical RoHS3 compliance and MSL Level 1 ratings. No compliance or certification differences exist between PESD3USB3S/CX and PESD3USB3S/CZ.

Q: Why is the original part marked as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand and production decisions. The availability of the active substitute part (PESD3USB3S/CZ) ensures that designs using the original part can transition without functional impact.