SP3208-01UTG Equivalent & Substitute Parts

Part Overview

The SP3208-01UTG is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for protection in HDMI and USB applications. This component features an 18V clamp voltage with 2A peak pulse current capability in a compact 2-µDFN surface mount package. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and maintenance applications.

Substiute Parts

SP3208-01UTG

Littelfuse Inc.In Stock: 756SP3208-01UTG Datasheet

Current PartRFQ

SP3213-01UTG

Littelfuse Inc.In Stock: 55134SP3213-01UTG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SP3208-01UTG is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 5V (Max)
• Voltage - Breakdown (Min): 6.2V
• Voltage - Clamping (Max) @ Ipp: 18V
• Current - Peak Pulse (8/20µs): 2A
• Bidirectional Channels: 1
• Type: Zener

Mechanical & Environmental Criteria:

• Mounting Type: Surface Mount
• Package / Case: 0201 (0603 Metric)
• Operating Temperature Range: -40°C ~ 125°C
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1

The SP3213-01UTG meets all substitution criteria as an active product from the same manufacturer series (SPA®) with identical electrical performance specifications and environmental ratings.

Parameter Comparison

Engineering Selection Recommendations

The SP3213-01UTG is the direct active equivalent for the obsolete SP3208-01UTG. Both components are manufactured by Littelfuse Inc. within the SPA® series and maintain identical electrical specifications for voltage clamping, breakdown characteristics, and peak pulse current handling. Both parts carry automotive-grade qualification (AEC-Q101) and ROHS3 compliance, ensuring compatibility with automotive and industrial protection applications.

The primary distinction between the two parts is product status and packaging format. The SP3213-01UTG is actively produced and available in Tape & Reel packaging, providing superior supply chain continuity compared to the obsolete SP3208-01UTG. The capacitance differential (0.08pF versus 0.09pF at 1MHz) is negligible for transient suppression applications and does not affect functional equivalence.

For new designs and production applications requiring TVS protection in HDMI and USB circuits, the SP3213-01UTG is the appropriate selection. For legacy system maintenance where the original SP3208-01UTG is no longer available, the SP3213-01UTG provides direct functional replacement without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the SP3213-01UTG directly replace the SP3208-01UTG in existing designs?

A: Yes. Both parts share identical electrical specifications including 5V reverse standoff voltage, 6.2V minimum breakdown voltage, 18V clamping voltage, and 2A peak pulse current. Both are automotive-grade (AEC-Q101) with identical operating temperature ranges and package dimensions (0201/0603 Metric). No circuit modifications are required.

Q: What is the significance of the capacitance difference (0.08pF vs 0.09pF)?

A: The capacitance values at 1MHz differ by 0.01pF, representing a 12.5% variance. This difference is within normal manufacturing tolerance for TVS diodes and does not impact transient suppression performance in HDMI and USB protection applications.

Q: Why is the SP3208-01UTG obsolete?

A: The SP3208-01UTG has been discontinued by Littelfuse Inc. The SP3213-01UTG represents the active production equivalent within the SPA® series, offering the same electrical performance with improved supply availability.

Q: Are there packaging considerations when switching from SP3208-01UTG to SP3213-01UTG?

A: The SP3208-01UTG was supplied in bulk packaging, while the SP3213-01UTG is available in Tape & Reel (TR) format. Both use identical 2-µDFN (0.60x0.30) surface mount packages. Tape & Reel packaging is standard for automated assembly processes and provides better component protection during storage and handling.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both the SP3208-01UTG and SP3213-01UTG carry automotive-grade classification with AEC-Q101 qualification. Both are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, suitable for automotive and industrial applications.

Q: Can the SP3213-01UTG be used in HDMI and USB protection circuits?

A: Yes. The SP3213-01UTG maintains the same electrical characteristics as the original SP3208-01UTG and is suitable for HDMI and USB transient protection applications. The 18V clamping voltage and 2A peak pulse current are appropriate for these interface protection requirements.