Orders shipping outside of United States will be on hold while the company evaluates tariff impacts.Please contact your salesperson for assistance.
Free shipping within the continental US over $50. Conditions apply
Manufacturer Part #
SMAJ440A
400 W 400 V Unidirectional SMT Transient Voltage Suppressor Diode - DO-214AC
| | |||||||||||
| | |||||||||||
| Mfr. Name: | Littelfuse | ||||||||||
| Standard Pkg: | Product Variant Information section Available PackagingPackage Qty:5000 per Reel Package Style:SMA (DO-214AC, SOD-106) Mounting Method:Surface Mount | ||||||||||
| Date Code: | |||||||||||
Littelfuse SMAJ440A - Product Specification
Shipping Information:
ECCN:
PCN Information:
Description:Littelfuse are excited to offer you the option to specify the manufacturing locations of TVS diodes in the DO-214AC (SMA) package. These products are available from our Malaysia site, in addition to our Wuxi, China plant. The new additional option allows customers to specify and ensure products will come from our Malaysia site when ordering their products. Effective immediately, 15 December 2025, the products are available from our Malaysia site.Note: For stack-die parts, use * to label the part number.
In order to support our fast-growing demand and secure continuity of supply for our customers, the TVS STD products listed will now be built on 6-inch wafers in addition to 5-inch wafers. The 6-inch wafers will be processed using new 6-inch capable furnaces and equipment, with optimized 6-inch wafer process steps.Effective date: Aug 1st, 2023
RE: LFPCN 41452- TVS STD DO-214AC(SMA) and DO-214AA(SMB) packages additional Epoxy Molding Compound and second Wafer Foundry approvalEffective 21 June 2023, Littelfuse will be adding a new epoxy molding compound (EMC) for our DO-214AC (SMA) and DO-214AA (SMB) packages. This urgent addition is necessary due to circumstances beyond Littelfuse, as the current supplier recently obsoleted the EMC used by the Affected Series. To further strengthen the security and continuity of supply for our customers, Littelfuse will add a second wafer foundry for DO-214AA (SMB) package of TVS STD Commercial grade products.
Part Status:
- https://futureelec.wufoo.com/forms/?formname=r8bzou01ws8brs&field12=NA&field16=en&field2=SMAJ440A&field4=Littelfuse&field18=https://p1na.futureelectronics.com/p/electromechanical--circuit-protection--tvs-diodes/smaj440a-littelfuse-8016922
- https://futureelec.wufoo.com/forms/?formname=r8bzou01ws8brs&field12=NA&field16=en&field2=SMAJ440A&field4=Littelfuse&field18=https://p1na.futureelectronics.com/p/electromechanical--circuit-protection--tvs-diodes/smaj440a-littelfuse-8016922
Littelfuse SMAJ440A - Technical Attributes
| Breakdown Voltage-Min: | 492V |
| Clamping Voltage-Max: | 713V |
| Directional: | Uni-Directional |
| Power Dissipation: | 400W |
| Peak Output Current: | 0.6A |
| Reverse Leakage Current: | 1µA |
| Peak Power: | 400W |
| Test Current: | 1mA |
| Standoff Voltage: | 440V |
| Forward Voltage: | 5V |
| Operating Temp Range: | -65°C to +150°C |
| Storage Temperature Range: | -65°C to +175°C |
| Capacitance: | 75pF |
| Breakdown Voltage-Max: | 543V |
| Package Style: | SMA (DO-214AC, SOD-106) |
| Mounting Method: | Surface Mount |
Features & Applications
The SMAJ440A is a part SMAJ series TVS diode. It has a storage temperature ranging from -65°C to +150°C and its available in DO-214AA package.
The SMAJ series is designed specifically to protect sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features:
- Halogen-Free, RoHS compliant
- For surface mounted applications to optimize board space
- Low profile package
- Built-in strain relief
- Glass passivated junction
- Low inductance
- Excellent clamping capability
- 400 W Peak Pulsepower capability at 10 x 1000 μs waveform, repetition rate (duty cycle): 0.01%
- Fast response time: typically less than 1.0ps from 0 Volts to VBR min
- Typical IR less than 1 μA above 12 V
- High temperature soldering: 260°C/40 seconds at terminals
- Typical maximum temperature coefficient ΔVBR = 0.1% x VBR@25°C x ΔT
- Plastic package has Underwriters Laboratory Flammability 94V-O
- Matte Tin Lead–free Plated
Applications:
- Protection of I/O interfaces
- VCC bus
- Vulnerable circuits used in telecom
- Computer
- Industrial
- Consumer electronic applications
Available Packaging
Package Qty:
5000 per Reel
Package Style:
SMA (DO-214AC, SOD-106)
Mounting Method:
Surface Mount