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Part Details for SMF18A by Littelfuse Inc
Results Overview of SMF18A by Littelfuse Inc
- Distributor Offerings: (14 listings)
- Number of FFF Equivalents: (6 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
SMF18A Information
SMF18A by Littelfuse Inc is a Transient Suppressor.
Transient Suppressors are under the broader part category of Diodes.
A diode is a electrical part that can control the direction in which the current flows in a device. Consider factors like voltage drop, current capacity, reverse voltage, and operating frequency when selecting a diode. Read more about Diodes on our Diodes part category page.
Price & Stock for SMF18A
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
18AC7705
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Newark | Tvs Diode, 200W, 18V, Unidir, Sod-123Fl, Product Range:Smf Series, Tvs Polarity:Unidirectional, Reverse Stand-Off Voltage Vrwm:18V, Clamping Voltage Vc Max:29.2V, Diode Case Style:Sod-123Fl, No. Of Pins:2Pins, Breakdown Voltage Rohs Compliant: Yes |Littelfuse SMF18A RoHS: Compliant Min Qty: 5 Package Multiple: 1 Date Code: 1 Container: Cut Tape | 520 |
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$0.1530 / $0.2740 | Buy Now |
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DISTI #
44W7172
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Newark | Tvs Smf 18V Uni, 7 Tr/ Tr Rohs Compliant: Yes |Littelfuse SMF18A RoHS: Compliant Min Qty: 3000 Package Multiple: 1 Date Code: 0 Container: Reel | 0 |
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$0.0740 / $0.1200 | Buy Now |
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DISTI #
F5820CT-ND
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DigiKey | TVS DIODE 18VWM 29.2VC SOD123F Min Qty: 1 Lead time: 13 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) |
2459 In Stock |
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$0.0722 / $0.2400 | Buy Now |
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DISTI #
576-SMF18A
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Mouser Electronics | ESD Protection Diodes / TVS Diodes 200W 18V 5% Uni-directional RoHS: Compliant | 13245 |
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$0.0720 / $0.2200 | Buy Now |
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DISTI #
V72:2272_06471232
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Arrow Electronics | Diode TVS Single Uni-Dir 18V 200W 2-Pin SOD-123F T/R Min Qty: 1 Package Multiple: 1 Lead time: 13 Weeks Date Code: 2337 Container: Cut Strips | Americas - 2948 |
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$0.0539 / $0.0594 | Buy Now |
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DISTI #
71336801
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RS | 200W Surface Mount Transient Voltage Suppressors in SMF Package Min Qty: 3000 Package Multiple: 1 Container: Bulk | 0 |
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$0.2140 / $0.2520 | RFQ |
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DISTI #
71306259
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Verical | Diode TVS Single Uni-Dir 18V 200W 2-Pin SOD-123F T/R Min Qty: 459 Package Multiple: 1 Date Code: 2301 | Americas - 3000 |
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$0.1546 / $0.1709 | Buy Now |
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DISTI #
70797381
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Verical | Diode TVS Single Uni-Dir 18V 200W 2-Pin SOD-123F T/R Min Qty: 110 Package Multiple: 1 Date Code: 2337 | Americas - 2948 |
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$0.0539 / $0.0566 | Buy Now |
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Bristol Electronics | Min Qty: 15 | 1185 |
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$0.1013 / $0.3375 | Buy Now |
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Quest Components | TVS DIODE | 948 |
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$0.0900 / $0.4500 | Buy Now |
Part Details for SMF18A
SMF18A CAD Models
SMF18A Part Data Attributes
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SMF18A
Littelfuse Inc
Buy Now
Datasheet
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Compare Parts:
SMF18A
Littelfuse Inc
Trans Voltage Suppressor Diode, 200W, 18V V(RWM), Unidirectional, 1 Element, Silicon, SMF, 2 PIN
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | LITTELFUSE INC | |
| Reach Compliance Code | not_compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8541.10.00.50 | |
| Samacsys Manufacturer | LITTELFUSE | |
| Additional Feature | EXCELLENT CLAMPING CAPABILITY | |
| Breakdown Voltage-Max | 22.1 V | |
| Breakdown Voltage-Min | 20 V | |
| Breakdown Voltage-Nom | 21.05 V | |
| Clamping Voltage-Max | 29.2 V | |
| Configuration | SINGLE | |
| Diode Element Material | SILICON | |
| Diode Type | TRANS VOLTAGE SUPPRESSOR DIODE | |
| JESD-30 Code | R-PDSO-F2 | |
| JESD-609 Code | e3 | |
| Moisture Sensitivity Level | 1 | |
| Non-rep Peak Rev Power Dis-Max | 1000 W | |
| Number of Elements | 1 | |
| Number of Terminals | 2 | |
| Operating Temperature-Max | 150 °C | |
| Operating Temperature-Min | -65 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Polarity | UNIDIRECTIONAL | |
| Power Dissipation-Max | 1 W | |
| Reference Standard | IEC-61000-4-2, 4-4; UL RECOGNIZED | |
| Rep Pk Reverse Voltage-Max | 18 V | |
| Reverse Current-Max | 1 µA | |
| Reverse Test Voltage | 18 V | |
| Surface Mount | YES | |
| Technology | AVALANCHE | |
| Terminal Finish | MATTE TIN | |
| Terminal Form | FLAT | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 30 |
Alternate Parts for SMF18A
This table gives cross-reference parts and alternative options found for SMF18A. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SMF18A, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| SMF18 | HY Electronic Corp | Check for Price | Trans Voltage Suppressor Diode, 200W, 18V V(RWM), Unidirectional, 1 Element, Silicon, | SMF18A vs SMF18 |
| SMF18A-GS08 | Vishay Intertechnologies | Check for Price | Trans Voltage Suppressor Diode, 1000W, 18V V(RWM), Unidirectional, 1 Element, Silicon, DO-219AB, ROHS COMPLIANT, PLASTIC, SMF, 2 PIN | SMF18A vs SMF18A-GS08 |
| SMF18A | EIC Semiconductor Inc | Check for Price | Transient Suppressor, | SMF18A vs SMF18A |
| SMF18A | MERITEK Electronics Corporation | Check for Price | Trans Voltage Suppressor Diode, | SMF18A vs SMF18A |
| SMF18A-T1-LF | Won-Top Electronics Co Ltd | Check for Price | Trans Voltage Suppressor Diode, 1000W, 18V V(RWM), Unidirectional, 1 Element, Silicon, | SMF18A vs SMF18A-T1-LF |
| SMF18A | HY Electronic Corp | Check for Price | Trans Voltage Suppressor Diode, 200W, 18V V(RWM), Unidirectional, 1 Element, Silicon, | SMF18A vs SMF18A |
SMF18A Frequently Asked Questions (FAQ)
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The recommended footprint and land pattern for SMF18A can be found in the Littelfuse application note AN9313, which provides guidelines for PCB layout and assembly.
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To ensure reliability in high-temperature applications, it is recommended to follow the derating curves provided in the datasheet, and to consider the device's thermal resistance and power dissipation. Additionally, proper PCB design, thermal management, and cooling mechanisms can help mitigate thermal stress.
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While the SMF18A is primarily designed for surge protection, it can be used in high-frequency circuits. However, the device's parasitic inductance and capacitance should be considered, and the circuit design should be optimized to minimize the impact of these parasitic elements.
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To select the correct SMF18A variant, consider the specific requirements of your application, including the maximum voltage, current, and power ratings. Refer to the datasheet and consult with Littelfuse's application engineers if necessary.
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The SMF18A provides ESD protection up to ±30kV contact discharge and ±30kV air discharge, according to the IEC 61000-4-2 standard. This makes it suitable for protecting sensitive electronics from electrostatic discharge events.