SP3208-01UTG LITTELFUSE TVS Diode (Bi-directional) (Other) In Stock

Name: SP3208-01UTG
Brand: LITTELFUSE
SKU: SP3208-01UTG
Availability: InStock

The Littelfuse SP3208-01UTG is a single bi-directional TVS diode with ultra-low capacitance, 6.2 V minimum breakdown voltage, and 18 V maximum clamping voltage, in a compact 2-pin SOT-23 package, providing ESD and transient overvoltage protection for sensitive high-speed data lines.

OBSOLETETVS Diode (Bi-directional)Verified Jun 2026

Package / Visual Reference

SP3208-01UTGOther

Quick Facts

Manufacturer: LITTELFUSE
Package: Other
Pin Count: 2
Lifecycle: OBSOLETE
Datasheet: SP3208-01UTG Datasheet PDF
Category: TVS Diode (Bi-directional)
Price: From $0.1575(MOQ 30000)
Temp Range: -40.0°C to 125.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of SP3208-01UTG?

Ultra-low capacitance for minimal signal distortion on high-frequency data lines such as USB and HDMI
6.2 V minimum / 7.5 V nominal breakdown voltage for 5 V bus ESD clamping
18 V maximum clamping voltage providing robust transient overvoltage suppression per IEC 61000-4-2
Bi-directional silicon TVS configuration protecting both positive and negative ESD transients
Compact SOT-23 (MO-236) 2-pin package for space-constrained PCB ESD protection layouts

What is SP3208-01UTG used for?

The SP3208-01UTG is designed to protect sensitive high-speed data line interfaces — including USB, HDMI, and DisplayPort — from ESD strikes and electrical transients by clamping voltage spikes to 18 V maximum. Its ultra-low capacitance minimizes signal integrity degradation on lines operating at hundreds of megabits per second or multi-gigabit data rates. The compact SOT-23 footprint allows placement close to the protected connector on mobile devices, laptops, and consumer electronics port interfaces.

What are the specifications of SP3208-01UTG?

YTEOL	0
Additional Feature	ULTRA LOW CAPACITANCE
Breakdown Voltage-Min	6.2V
Breakdown Voltage-Nom	7.5V
Clamping Voltage-Max	18V
Configuration	SINGLE
Diode Element Material	SILICON
Diode Type	TRANS VOLTAGE SUPPRESSOR DIODE
JEDEC-95 Code	MO-236
JESD-30 Code	R-PBCC-N2
Number of Elements	1
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	CHIP CARRIER
Peak Reflow Temperature (Cel)	NOT SPECIFIED
Polarity	BIDIRECTIONAL
Reference Standard	AEC-Q101; IEC-61000-4-2, 4-4, 4-5
Rep Pk Reverse Voltage-Max	5V
Reverse Current-Max	0.1 µA
Reverse Test Voltage	5V
Surface Mount	YES
Technology	AVALANCHE
Terminal Form	NO LEAD
Terminal Position	BOTTOM
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED
Package	Other

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
ECCN	EAR99
HTS Code	8541.10.00.50

Where can I find the SP3208-01UTG datasheet?

SP3208-01UTG Datasheet Download

Official datasheet from LITTELFUSE

What are equivalent replacements for SP3208-01UTG?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What clamping voltage does SP3208-01UTG achieve during an ESD event and how does this protect downstream ICs?

The SP3208-01UTG clamps transient overvoltages to a maximum of 18 V during high-current ESD pulses. By limiting the peak voltage reaching downstream ICs to 18 V, it prevents gate oxide breakdown in 5 V-tolerant input stages and protects USB or HDMI interface receivers that have absolute maximum input ratings typically in the 6 V to 7 V range under normal operation, with ESD protection cells rated to withstand 18 V peak.

How does the ultra-low capacitance of SP3208-01UTG compare with standard TVS diodes for high-speed USB data lines?

Standard TVS diodes for general-purpose protection often have capacitance values of 100 pF to 500 pF, which would attenuate USB 2.0 (480 Mbps) or USB 3.0 (5 Gbps) signals significantly. The SP3208-01UTG is specified as ultra-low capacitance, typically 0.5 pF to 1 pF, which introduces negligible signal attenuation and preserves eye diagram margin on high-speed differential pairs operating up to several gigahertz.

On a 5 V USB port protection design, why choose SP3208-01UTG's 7.5 V nominal breakdown over a lower-voltage alternative?

A 7.5 V nominal breakdown voltage provides adequate margin above the 5 V bus maximum operating voltage (including tolerance), preventing the TVS from conducting during normal operation while still clamping IEC 61000-4-2 ESD strikes (which can reach 8 kV or 16 A peak current) well before they damage downstream USB controller ICs. A lower breakdown (e.g., 5.5 V) would risk false triggering on 5 V transients within normal operating range, while a higher breakdown would allow excessive clamping voltages to reach sensitive inputs.

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.

Aug 6, 2026

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.

Aug 6, 2026

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.

Aug 4, 2026

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.

Aug 4, 2026

Why Buy from FindMyChip

Authorized Source

Verified supply chain with full traceability & inspection

Competitive Pricing

Factory-direct from China distributors, low MOQ

Fast Shipping

DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide

Quality Guaranteed

30-day replacement for defective parts, no questions asked

About LITTELFUSE

LITTELFUSE is a leading electronic component manufacturer. FindMyChip sources LITTELFUSE ICs directly from authorized China distributors, offering competitive pricing and reliable stock.

View all LITTELFUSE parts →

More from LITTELFUSE

S6040R

Transistor Outline, Vertical

SCR

MDSM-4R-12-18

Other

Switch

SMAJ100CA

Diodes Moulded Non Polarised

TVS Diode (Bi-directional)

SMDJ28CA

Diodes Moulded

TVS Diode (Bi-directional)

SMDJ60A

Diodes Moulded

TVS Diode (Uni-directional)

SMCJ30CA

Diodes Moulded Non Polarised

TVS Diode (Bi-directional)

AvailabilityIn Stock

Reference Price (USD)

From $0.1575

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
30000+	$0.1575	$4725.00

pcs

Unit price: $0.1575 · Total: $4725.00

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

Marco Rossi

CTO, AutoDrive Systems, Italy

SP3208-01UTG LITTELFUSE TVS Diode (Bi-directional) (Other) In Stock

What are the key features of SP3208-01UTG?

What is SP3208-01UTG used for?

What are the specifications of SP3208-01UTG?

Compliance & Regulatory

Where can I find the SP3208-01UTG datasheet?

What are equivalent replacements for SP3208-01UTG?

Frequently Asked Questions

What clamping voltage does SP3208-01UTG achieve during an ESD event and how does this protect downstream ICs?

How does the ultra-low capacitance of SP3208-01UTG compare with standard TVS diodes for high-speed USB data lines?

On a 5 V USB port protection design, why choose SP3208-01UTG's 7.5 V nominal breakdown over a lower-voltage alternative?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About LITTELFUSE

More from LITTELFUSE

You May Also Like