The BOURNS SMLJ78A is a high-performance Transient Voltage Suppressor (TVS) diode designed for circuit protection applications. Manufactured in Taiwan, this device provides reliable surge and ESD protection for electronic systems, ensuring durability against voltage spikes.
Maximum Peak Pulse Power Dissipation: 3000W (at 1 ms pulse width)
Peak Forward Surge Current: 300A (8.3 ms single half sine wave)
Operating Temperature Range: -55°C to +150°C
Storage Temperature Range: -55°C to +175°C
Designed for high surge current protection in portable communication, computing, and video equipment
Compact chip package in DO-214AB (SMC) size format
Conforms to JEDEC standards, easy to handle with standard pick and place equipment
Electrical Characteristics (@ TA = 25 °C):
Parameter
Symbol
Value
Unit
Minimum Peak Pulse Power Dissipation (TP = 1 ms)
PPK
3000
Watts
Peak Forward Surge Current 8.3ms (JEDEC Method)
IFSM
300
Amps
Steady State Power Dissipation @ TL = 75 °C
PM(AV)
5.0
Watts
Maximum Instantaneous Forward Voltage @ IPP = 100 A (Unidirectional)
VF
3.5 V (typical)
Volts
Operating Temperature Range
TJ
-55 to +150
°C
Storage Temperature Range
TSTG
-55 to +175
°C
For detailed specifications and ordering information, please refer to the datasheet.
Note: The datasheet hyperlink provided is the primary source for detailed technical data. Customers should verify device performance in their specific applications.
Disclaimers: Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
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{"id":10020740923709,"title":"SMLJ78A","handle":"smlj78a","description":"\u003ch3\u003eBOURNS SMLJ78A Transient Voltage Suppressor Diode\u003c\/h3\u003e\n\u003cp\u003eThe BOURNS SMLJ78A is a high-performance Transient Voltage Suppressor (TVS) diode designed for circuit protection applications. Manufactured in Taiwan, this device provides reliable surge and ESD protection for electronic systems, ensuring durability against voltage spikes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SMLJ78A\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e BOURNS\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e TW (Taiwan)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA (Each)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e REEL\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-bo\/383cd214l-t.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eMaximum Peak Pulse Power Dissipation: 3000W (at 1 ms pulse width)\u003c\/li\u003e\n \u003cli\u003ePeak Forward Surge Current: 300A (8.3 ms single half sine wave)\u003c\/li\u003e\n \u003cli\u003eOperating Temperature Range: -55°C to +150°C\u003c\/li\u003e\n \u003cli\u003eStorage Temperature Range: -55°C to +175°C\u003c\/li\u003e\n \u003cli\u003eDesigned for high surge current protection in portable communication, computing, and video equipment\u003c\/li\u003e\n \u003cli\u003eCompact chip package in DO-214AB (SMC) size format\u003c\/li\u003e\n \u003cli\u003eConforms to JEDEC standards, easy to handle with standard pick and place equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Characteristics (@ TA = 25 °C):\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eSymbol\u003c\/th\u003e\n \u003cth\u003eValue\u003c\/th\u003e\n \u003cth\u003eUnit\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMinimum Peak Pulse Power Dissipation (TP = 1 ms)\u003c\/td\u003e\n \u003ctd\u003ePPK\u003c\/td\u003e\n \u003ctd\u003e3000\u003c\/td\u003e\n \u003ctd\u003eWatts\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePeak Forward Surge Current 8.3ms (JEDEC Method)\u003c\/td\u003e\n \u003ctd\u003eIFSM\u003c\/td\u003e\n \u003ctd\u003e300\u003c\/td\u003e\n \u003ctd\u003eAmps\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSteady State Power Dissipation @ TL = 75 °C\u003c\/td\u003e\n \u003ctd\u003ePM(AV)\u003c\/td\u003e\n \u003ctd\u003e5.0\u003c\/td\u003e\n \u003ctd\u003eWatts\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMaximum Instantaneous Forward Voltage @ IPP = 100 A (Unidirectional)\u003c\/td\u003e\n \u003ctd\u003eVF\u003c\/td\u003e\n \u003ctd\u003e3.5 V (typical)\u003c\/td\u003e\n \u003ctd\u003eVolts\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n \u003ctd\u003eTJ\u003c\/td\u003e\n \u003ctd\u003e-55 to +150\u003c\/td\u003e\n \u003ctd\u003e°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Temperature Range\u003c\/td\u003e\n \u003ctd\u003eTSTG\u003c\/td\u003e\n \u003ctd\u003e-55 to +175\u003c\/td\u003e\n \u003ctd\u003e°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed specifications and ordering information, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-bo\/383cd214l-t.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The datasheet hyperlink provided is the primary source for detailed technical data. Customers should verify device performance in their specific applications.\u003c\/p\u003e\n\u003cp\u003eDisclaimers: Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.\u003c\/p\u003e","published_at":"2025-08-12T06:24:03+05:30","created_at":"2025-08-12T06:24:03+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["3000W","78V","BOURN","Circuit","Esd","IMPORT_CSV","RWM","Tvs","WLDM"],"price":4574,"price_min":4574,"price_max":4574,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50610596806973,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"SMLJ78A","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"SMLJ78A","public_title":null,"options":["Default Title"],"price":4574,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"SMLJ78A","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/SMLJ78A_39191894_7dd3e3ca.jpg?v=1754960047"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SMLJ78A_39191894_7dd3e3ca.jpg?v=1754960047","options":["Title"],"media":[{"alt":null,"id":45792862306621,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SMLJ78A_39191894_7dd3e3ca.jpg?v=1754960047"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/SMLJ78A_39191894_7dd3e3ca.jpg?v=1754960047","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eBOURNS SMLJ78A Transient Voltage Suppressor Diode\u003c\/h3\u003e\n\u003cp\u003eThe BOURNS SMLJ78A is a high-performance Transient Voltage Suppressor (TVS) diode designed for circuit protection applications. Manufactured in Taiwan, this device provides reliable surge and ESD protection for electronic systems, ensuring durability against voltage spikes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SMLJ78A\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e BOURNS\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e TW (Taiwan)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA (Each)\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e REEL\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-bo\/383cd214l-t.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eMaximum Peak Pulse Power Dissipation: 3000W (at 1 ms pulse width)\u003c\/li\u003e\n \u003cli\u003ePeak Forward Surge Current: 300A (8.3 ms single half sine wave)\u003c\/li\u003e\n \u003cli\u003eOperating Temperature Range: -55°C to +150°C\u003c\/li\u003e\n \u003cli\u003eStorage Temperature Range: -55°C to +175°C\u003c\/li\u003e\n \u003cli\u003eDesigned for high surge current protection in portable communication, computing, and video equipment\u003c\/li\u003e\n \u003cli\u003eCompact chip package in DO-214AB (SMC) size format\u003c\/li\u003e\n \u003cli\u003eConforms to JEDEC standards, easy to handle with standard pick and place equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Characteristics (@ TA = 25 °C):\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eSymbol\u003c\/th\u003e\n \u003cth\u003eValue\u003c\/th\u003e\n \u003cth\u003eUnit\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMinimum Peak Pulse Power Dissipation (TP = 1 ms)\u003c\/td\u003e\n \u003ctd\u003ePPK\u003c\/td\u003e\n \u003ctd\u003e3000\u003c\/td\u003e\n \u003ctd\u003eWatts\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003ePeak Forward Surge Current 8.3ms (JEDEC Method)\u003c\/td\u003e\n \u003ctd\u003eIFSM\u003c\/td\u003e\n \u003ctd\u003e300\u003c\/td\u003e\n \u003ctd\u003eAmps\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSteady State Power Dissipation @ TL = 75 °C\u003c\/td\u003e\n \u003ctd\u003ePM(AV)\u003c\/td\u003e\n \u003ctd\u003e5.0\u003c\/td\u003e\n \u003ctd\u003eWatts\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMaximum Instantaneous Forward Voltage @ IPP = 100 A (Unidirectional)\u003c\/td\u003e\n \u003ctd\u003eVF\u003c\/td\u003e\n \u003ctd\u003e3.5 V (typical)\u003c\/td\u003e\n \u003ctd\u003eVolts\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n \u003ctd\u003eTJ\u003c\/td\u003e\n \u003ctd\u003e-55 to +150\u003c\/td\u003e\n \u003ctd\u003e°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Temperature Range\u003c\/td\u003e\n \u003ctd\u003eTSTG\u003c\/td\u003e\n \u003ctd\u003e-55 to +175\u003c\/td\u003e\n \u003ctd\u003e°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed specifications and ordering information, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-bo\/383cd214l-t.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The datasheet hyperlink provided is the primary source for detailed technical data. Customers should verify device performance in their specific applications.\u003c\/p\u003e\n\u003cp\u003eDisclaimers: Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.\u003c\/p\u003e"}
I'm particularly impressed with how carefully the header pins are packed for the RP2350-PiZero, they arrived in perfect condition without any bent pins, which has been a persistent issue with other competitors. This attention to packaging detail really stands out.
I also received the latest A4 revision of the RP2350, which shows you maintain current inventory, that's really valuable for customers who want the most up to date components.
The delivery was quick and hassle free throughout. I'll definitely be recommending you to others!
App feedback: The discounts offered through the app are a nice bonus, but the component search function could be improved to match the ease of use on the website version. The rest of the app functions work well.
