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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) - TVS Diodes > SP12-01WTG-C-HV
Littelfuse Inc.
MFG SPxx-01WTG-C-HV.jpg ImageView larger image
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SP12-01WTG-C-HV

In Stock 66368 pcs Reference Price(In US Dollars)
5+
$0.5788
50+
$0.4713
150+
$0.4161
500+
$0.3637
2500+
$0.3312
5000+
$0.3156
Manufacturer Part Number:
SP12-01WTG-C-HV
Manufacturer / Brand
Littelfuse Inc.
Part of Description:
TVS DIODE 12VWM 19VC 2FLIPCHIP
Datasheets:
SP12-01WTG-C-HV.pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 66368 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number SP12-01WTG-C-HV
Manufacturer / Brand Littelfuse Inc.
Stock Quantity 66368 pcs Stock
Category Circuit Protection > Transient Voltage Suppressors (TVS) - TVS Diodes
Description TVS DIODE 12VWM 19VC 2FLIPCHIP
Lead Free Status / RoHS Status: ROHS3 Compliant
Voltage - Reverse Standoff (Typ) 12V (Max)
Voltage - Clamping (Max) @ Ipp 19V
Voltage - Breakdown (Min) 13.3V
Type Zener
Supplier Device Package 2-FlipChip
Series SPXX, SPA®
Power Line Protection No
Power - Peak Pulse 100W
Package / Case 2-XFDFN, FCDFN
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Current - Peak Pulse (10/1000µs) 8A (8/20µs)
Capacitance @ Frequency 26pF @ 1MHz
Bidirectional Channels 1
Applications General Purpose

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

PayPal:

PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

BANK TRANSFAR (Telegraphic Transfer)

Payment For Telegraphic Transfers:
Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can SP12-01WTG-C-HV be used to protect a 12 V industrial input rail from ESD, EFT, or cable transients?
Yes, SP12-01WTG-C-HV is commonly used on 12 V nominal lines for short-duration transient suppression when the normal operating voltage stays below its 12 V reverse standoff rating. Its 19 V clamp level helps limit the stress seen by downstream ICs during events such as ESD or fast switching noise. For cable-connected inputs, it is usually placed very close to the connector and used together with a low-impedance return path, and sometimes a fuse, PTC, or series impedance if the line can also see higher-energy surge events.
Is SP12-01WTG-C-HV suitable for 24 V or 15 V systems?
No, SP12-01WTG-C-HV is not a good match for 24 V rails, and it is also marginal for many 15 V systems. The device has a 12 V maximum reverse standoff and begins to break down above that level, so a higher nominal rail can cause unwanted leakage or heating in normal operation. For 15 V or 24 V designs, select a TVS with a higher standoff voltage and confirm the clamp level still stays within the protected circuitry’s tolerance.
Will the 26 pF capacitance of SP12-01WTG-C-HV affect high-speed signals?
Yes, SP12-01WTG-C-HV can add enough capacitance to disturb fast edges or impedance-sensitive traces. It is usually acceptable for slower control, GPIO, power-enable, or general-purpose lines, but it is less suitable for high-speed serial interfaces, precision clocks, or RF-adjacent nodes where extra capacitance can increase edge distortion, eye closure, or return-loss issues. For those cases, a lower-capacitance ESD protector is often a better fit than SP12-01WTG-C-HV.
What PCB layout practices help SP12-01WTG-C-HV clamp transients effectively?
SP12-01WTG-C-HV should be placed as close as possible to the point where the transient enters the board, with very short traces and a low-inductance path to the reference plane. Long routing between the connector and the TVS reduces clamping effectiveness because trace inductance can let the voltage spike rise before the device conducts strongly. With the 2-FlipChip package, follow the recommended land pattern carefully and keep the current loop compact so SP12-01WTG-C-HV can respond to the surge instead of the PCB trace absorbing it.
Can SP12-01WTG-C-HV be used on bidirectional or AC-coupled lines?
Yes, SP12-01WTG-C-HV is bidirectional, so it can clamp positive and negative transients on a line whose normal signal swings around a reference point. That makes it a practical choice for floating sensor inputs or bipolar protection needs. It is not a sustained reverse-polarity protection device, though, so if the line can be connected backward for long periods, a dedicated reverse-polarity protection circuit is still needed. The normal waveform should also remain within the device’s standoff range during operation.
What should I check before replacing SP12-01WTG-C-HV with parts like UCLAMP1211Z.TNT, ESDA14V2-1BF3, or SD12CT1G?
When replacing SP12-01WTG-C-HV with UCLAMP1211Z.TNT, ESDA14V2-1BF3, SD12CT1G, or another TVS, compare more than just the nominal voltage. Check the standoff voltage, breakdown range, clamp voltage at the relevant surge current, capacitance, package size, pinout, and whether the substitute is unidirectional or bidirectional. SP12-01WTG-C-HV also uses a 2-FlipChip style package, so mechanical fit and assembly profile may differ from leaded or larger molded packages even when the electrical ratings look similar.
Is SP12-01WTG-C-HV suitable for industrial environments with wide temperature swings?
SP12-01WTG-C-HV is rated for junction temperatures from -40°C to 125°C, so it fits many industrial operating profiles. In long-term use, the main wear mechanism is usually repeated surge energy rather than steady-state temperature alone. If the board is exposed to frequent cable ESD, inductive events, or repetitive surge pulses, it is a good practice to validate SP12-01WTG-C-HV under the actual waveform and repetition rate used in the system, rather than relying only on a single-pulse rating.
Can SP12-01WTG-C-HV replace a larger SMAJ or SMBJ TVS on a compact board?
SP12-01WTG-C-HV can replace a larger SMAJ or SMBJ device when the actual transient energy fits within its 8 A, 8/20 µs and 100 W peak pulse capability and when the smaller 2-XFDFN package meets the assembly constraints. The trade-off is usually board-space savings versus lower energy headroom and tighter layout requirements. If the original larger TVS was selected for higher surge robustness, easier solder inspection, or better thermal margin, those factors should be rechecked before moving to SP12-01WTG-C-HV.

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SP12-01WTG-C-HV

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Littelfuse Inc.

TVS DIODE 12VWM 19VC 2FLIPCHIP

In Stock: 66368

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