SP3031-01ETG LITTELFUSE TVS Diode (Uni-directional) (Other) In Stock
SP3031-01ETG is a low-capacitance unidirectional TVS diode from Littelfuse designed for ESD and transient overvoltage protection on sensitive signal lines. It features a 6 V breakdown voltage and 7.5 V maximum clamping voltage in a compact 2-pin SOD-323 package. Suitable for USB, high-speed data lines, and consumer electronics requiring sub-picofarad ESD protection.
- Manufacturer
- LITTELFUSE
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- SP3031-01ETG Datasheet PDF
- Category
- TVS Diode (Uni-directional)
- Price
- From $0.0405(MOQ 1)
- 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 SP3031-01ETG?
- Low-capacitance silicon TVS diode with 6 V breakdown voltage for high-speed signal line protection
- 7.5 V maximum clamping voltage provides tight transient suppression on 5 V logic and USB rails
- Single unidirectional configuration ideal for protecting one signal line per component
- Ultra-compact 2-pin SOD-323 (MO-236) SMD package minimizes board footprint
- Silicon diode element ensures consistent clamping performance over temperature and aging
What is SP3031-01ETG used for?
The SP3031-01ETG is primarily used for ESD protection on USB data lines, HDMI ports, and high-speed serial interfaces where signal integrity demands low parasitic capacitance and fast transient response. Its 6 V breakdown and 7.5 V clamp voltage make it suitable for protecting 5 V tolerant logic inputs in smartphones, tablets, laptops, and industrial handheld devices. The compact SOD-323 package allows placement close to connectors on densely populated PCBs to minimize ESD transient path length.
What are the specifications of SP3031-01ETG?
| YTEOL | 7 |
| Additional Feature | LOW CAPACITANCE |
| Breakdown Voltage-Min | 6V |
| Breakdown Voltage-Nom | 6V |
| Clamping Voltage-Max | 7.5V |
| 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) | 260 |
| Polarity | UNIDIRECTIONAL |
| Rep Pk Reverse Voltage-Max | 5V |
| Surface Mount | YES |
| Technology | AVALANCHE |
| Terminal Form | NO LEAD |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.50 |
| Country of Origin | Mainland China |
Where can I find the SP3031-01ETG datasheet?
SP3031-01ETG Datasheet DownloadOfficial datasheet from LITTELFUSE
What are equivalent replacements for SP3031-01ETG?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key voltage characteristics of the SP3031-01ETG TVS diode?
The SP3031-01ETG has a 6 V nominal breakdown voltage and a 7.5 V maximum clamping voltage, meaning it begins conducting at 6 V and limits transient peaks to no more than 7.5 V on the protected signal line during ESD events.
Why is the low capacitance of the SP3031-01ETG important for high-speed data interfaces?
For USB 3.0, HDMI, and Gigabit Ethernet lines operating above 1 Gbps, even a few picofarads of parasitic capacitance can degrade signal integrity. The SP3031-01ETG's low-capacitance silicon design minimizes insertion loss and eye diagram degradation while still clamping ESD transients to 7.5 V.
Which package does the SP3031-01ETG use and how compact is it for PCB layout near connectors?
The SP3031-01ETG is housed in a 2-pin SOD-323 SMD package (JEDEC MO-236), one of the smallest discrete diode footprints available, measuring approximately 1.7 mm x 1.25 mm. This allows placement within 2 to 3 mm of USB or data connector pins to minimize the ESD current loop area.
When is SP3031-01ETG a better ESD protection choice than a multi-channel TVS array for a single USB line?
When protecting a single USB or serial signal line where PCB space is at a premium, the SP3031-01ETG's single-channel SOD-323 footprint avoids the wasted channels and larger footprint of a 4-channel or 8-channel TVS array, reducing cost and board area while delivering the same 6 V breakdown and 7.5 V clamping performance.
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Why Buy from FindMyChip
About LITTELFUSE
LITTELFUSE is a leading electronic component manufacturer. FindMyChip sources LITTELFUSE ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from LITTELFUSE
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2571 | $0.26 |
| 10+ | $0.1002 | $1.00 |
| 1000+ | $0.0805 | $80.53 |
| 2000+ | $0.0717 | $143.38 |
| 5000+ | $0.0621 | $310.45 |
| 30000+ | $0.0405 | $1215.30 |
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