It appears you have JavaScript disabled within your browser. Some functions on this page will not work unless you log in.

See an Error?

SMBJ40A

Name: Semtech SMBJ40A
Brand: Semtech
SKU: 947-SMBJ40A
Price: 0.67 EUR
Availability: InStock

Images are for reference only
See Product Specifications

Mouser No:

947-SMBJ40A

Mfr. No:

SMBJ40A

Mfr.:

Semtech

Description:

ESD Protection Diodes / TVS Diodes 1-Line 40V 9.3A TVS DO-214AA(SMB)

Lifecycle:

New Product:

New from this manufacturer.

Datasheet:

SMBJ40A Datasheet (PDF)

ECAD Model:

Download the free Library Loader to convert this file for your ECAD Tool. Learn more about the ECAD Model.

More Information

Learn more about Semtech SMBJ40A

In Stock: 4.200

Stock:: 4.200

Can Dispatch Immediately

An unexpected error occurred. Please try again later.
On Order:: 3.000

Expected 7/1/2026
Factory Lead Time:: 18

Weeks Estimated factory production time for quantities greater than shown.

Enter Quantity:

Minimum: 1 Multiples: 1

Unit Price:

-,-- €

Ext. Price:

-,-- €

Est. Tariff:

Packaging:

Full Reel (Order in multiples of 3000)

Cut Tape

MouseReel™ (+5,00 €)

Pricing (EUR)

Qty.	Unit Price	Ext. Price
Cut Tape / MouseReel™ ^†
	0,671 €	0,67 €
	0,414 €	4,14 €
	0,267 €	26,70 €
	0,204 €	102,00 €
	0,183 €	183,00 €
Full Reel (Order in multiples of 3000)
	0,157 €	471,00 €
	0,141 €	846,00 €
	0,13 €	1.170,00 €
	0,123 €	2.952,00 €

† A MouseReel™ fee of 5,00 € will be added and calculated in your basket. All MouseReel™ orders are non-cancellable and non-returnable. ↩

.hidden-for-nojs { display: none; } .pull-right-nojs { justify-content: flex-end; }

Product Attribute	Attribute Value	Select Attribute
Manufacturer:	Semtech
Product Category:	ESD Protection Diodes / TVS Diodes
RoHS:
Polarity:	Unidirectional
Number of Channels:	1 Channel
Working Voltage:	40 V
Termination Style:	SMD/SMT
Clamping Voltage:	64.5 V
Breakdown Voltage:	44.4 V
Package/Case:	SMB (DO-214AA)
Ipp - Peak Pulse Current:	9.3 A
Pppm - Peak Pulse Power Dissipation:	600 W
Vesd - Voltage ESD Contact:	30 kV
Vesd - Voltage ESD Air Gap:	30 kV
Minimum Operating Temperature:	- 55 C
Maximum Operating Temperature:	+ 150 C
Series:	SMBJxA
Packaging:	Reel
Packaging:	Cut Tape
Packaging:	MouseReel
Brand:	Semtech
Country of Assembly:	Not Available
Country of Diffusion:	Not Available
Country of Origin:	IN
Pd - Power Dissipation:	5 W
Factory Pack Quantity:	3000
Subcategory:	ESD Protection Diodes / TVS Diodes

Products found:

To show similar products, select at least one checkbox

Select at least one checkbox above to show similar products in this category.

Attributes selected: 0

Filter Document:

Datasheet

SMBJ40A Datasheet (PDF)

PCN

Product Change Notification 2026-5-12 (PDF)

This functionality requires JavaScript to be enabled.

TARIC:: 8541100000
CAHTS:: 8541100090
USHTS:: 8541100080
ECCN:: EAR99

SMBJxA ESD Protection Diodes

Semtech SMBJxA Electrostatic Discharge (ESD) Protection Diodes are designed to protect sensitive electronics from latch-up due to lightning, Electrical Overstress (EOS), and Cable Discharge Event (CDE). These unidirectional diodes offer a 600W peak power dissipation at 10x1000μs pulse. The SMBJxA protection diodes also offer fast response time, low operating voltage, and low clamping voltage. These diodes feature large cross-sectional area junctions for conducting high transient currents. The SMBJxA 1-line ESD protection diodes are used in industrial equipment, telecom, and datacom applications.