Diode Package DO-35 Case style, Through-Hole
DO-35 Diode Package Details
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DO-35 Diode, Axial Lead Component Package
The DO-35 package is a 2-terminal Axial Leaded Through-Hole device.
The leads should be bent near the component body to keep them as short as possible, and also insure the body is raised up just above the surface of the PWB. The short leads between the DO-35 and the Printed Circuit Board [PCB] allow good heat conduction into the board [Horizontal mounting]. Vertical mounting is also possible and results in more efficient heat conduction than horizontal mounting because of the single short lead. The shorter the leads the lower the thermal resistance between the DO-35 body and the PCB.
Refer to the graph below for lead length vs heat transfer, for equal length leads. Note that the DO-34 package is the exact same style with slightly different dimensions, as shown in the table to the left.
Refer to the graph below for lead length vs heat transfer, for equal length leads. Note that the DO-34 package is the exact same style with slightly different dimensions, as shown in the table to the left.
Copper heat sinks are available for axial leaded components, mounted horizontally to the board.
A number of diodes use the DO-35 package;
Low-Noise Voltage Regulator Diodes; 1N4099-1 through 1N4135-1, 1N4614-1 through 1N4627-1, 1N5518B-1, 1N5518C-1, 1N5518D-1 to 1N5546B-1, 1N5546C-1 and 1N5546D-1
Ultra-Fast-Recovery Power Rectifier Diode; 1N6073 through 1N6081
Voltage Regulator Diode; 1N6309 through 1N6355, 1N962 through 1N992
Voltage Regulator Diode, 500mW; 1N4370A-1 to 1N4372A-1, 1N746A-1 to 1N759A-1,
Zener Diodes; 1N5221B to 1N5267B
Schottky Barrier Hermetic Diode, 1N6677-1
500mW Diodes; 1N4614, 1N4615, 1N4616, 1N4617, 1N4618, 1N4618, 1N4619, 1N4620
1N4621, 1N4622, 1N4623, 1N4624, 1N4625, 1N4626, 1N4627, 1N4678
Low-Noise Voltage Regulator Diodes; 1N4099-1 through 1N4135-1, 1N4614-1 through 1N4627-1, 1N5518B-1, 1N5518C-1, 1N5518D-1 to 1N5546B-1, 1N5546C-1 and 1N5546D-1
Ultra-Fast-Recovery Power Rectifier Diode; 1N6073 through 1N6081
Voltage Regulator Diode; 1N6309 through 1N6355, 1N962 through 1N992
Voltage Regulator Diode, 500mW; 1N4370A-1 to 1N4372A-1, 1N746A-1 to 1N759A-1,
Zener Diodes; 1N5221B to 1N5267B
Schottky Barrier Hermetic Diode, 1N6677-1
500mW Diodes; 1N4614, 1N4615, 1N4616, 1N4617, 1N4618, 1N4618, 1N4619, 1N4620
1N4621, 1N4622, 1N4623, 1N4624, 1N4625, 1N4626, 1N4627, 1N4678
Similar components are provided for rapid substitution if required because of lead time, stock issues or obsolescence, but does not imply they are in production.
Editor note; Some data sheets may refer to a Zener diode as a voltage regulator diode, while other data sheets or companies may just use the term Zener diode.
DO-35 Diode Package Derating
DO-35 Diode Package Temperature-Power Derating Curve
DO-35 Diode Power Derating Curve
How to read the temperature curves; Interpreting Deraring Curves.
How to derate a Axial Lead Through-Hole DO-35 package based on operating temperature. Derate Temperature by Device; Diode Derating Curves
The graph applies to still air, so supplying forced air to the system will allow the DO-35 to operate at a higher temperature then shown in the graph.
The graph applies to still air, so supplying forced air to the system will allow the DO-35 to operate at a higher temperature then shown in the graph.
Take note that there could be other derating curves that relate to a DO-35 that look different, with the operating range falling at different rates. Although this curve does show the operating range of a DO-35, it also indicates the lead length of 3/8 inch and the thermal resistance. Other curves may indicate a different thermal resistance, a different lead length or relate to the temperature rise of the printed circuit card and not the component it self. The important point to note is that this graph relates to a board mounted DO-35 with a particular lead length [both terminals being the same length].
Axial Lead DO-35 Diode Package
Also see Styles of Diode Packages, or How to Derate; Guideline for Derating Components.
Editor note: As with all these curves provided on this site, the top most curve [far right] represents the maximum junction temperature of 175 degrees Centigrade and should not be used and never be exceeded. The curve just under that which intersects with 150 degrees and indicates the point that all the electrical characteristics were derived. The two bottom gray curves indicate the best range that the DO-35 should be operated at, as power and temperature.
This page is one of about half a dozen that describe power derating of a component body without regard to an associated semiconductor. The data is a bit hard to design with, but the information does show how the size and shape of a part and its lead length come into play when thinking of over temperature and proper design.
The leads of the DO-35 do help to conduct heat away from the body of the component. However the greatest amount of heat conduction occurs using the shortest lead length possible [conducting heat into the Printed Wiring Board]. Refer to a graph to the left, as Lead Length vs Power Dissipation for an axial lead DO-35 diode [1N6073, 1N6074, & 1N6075]. The thermal resistance of the Junction to Lead [JL] increases with lead length. The thermal resistance of the leads for a lead length of zero begins at 13C/W, and increases to 70 C/W for a lead length of 0.75 inches. The other lead lengths provided in the graph equate to the following thermal resistances: .125, 13C/W; .250, 24C/W; .375, 46C/W; and .5, 54C/W. Heat is also removed from the DO-35 body by convection and radiation.
The maximum power the diode can dissipate decreases as the lead length increases.Heat is transferred from the body of the component through the leads and into the Printed Circuit Board [PCB] which is why lead length is important. The longer the component terminals the greater the resistance to heat flow from the body of the device. Always use the shortest possible lead length during PWB layout and design [something that would need to specified]. Also avoid using component sockets or discrete carriers and mount the diode directly to the printed wiring board, because the socket adds additional thermal resistance. When one terminal of the diode connects to power or ground take that lead directly to the voltage plane if possible
For the adventure seeker, going fast is the only way to go. If you’re someone who loves to go fast on a jet ski, the Sea-Doo Spark would be a familiar name. The only question is, what is the Sea-Doo Spark’s top speed exactly?
The Sea-Doo Spark’s top speed is 50 mph. During Sea-Doo’s Orlando press intro, testers reached a max speed of 42 mph on the Spark with a 60 hp ACE engine. This model weighs only 405 pounds. The 90 hp Spark version reached a max speed of 50 mph. This version weighs 420 pounds.
A speed of 40 to 50 mph may not seem fast at all. But when it comes to traveling on water, a top speed of that rate is like flying on top of the waves. Add to that the fact that the Sea-Doo Spark is a lightweight jet ski making it easier to go from a speed of zero to maximum in only a matter of seconds.
One of the best features of the Sea-Doo Spark is that it doesn’t need a powerful or heavy engine to reach these speeds on the water. With a smaller engine to fill, you’d get better fuel economy and cheaper fill-ups compared to having a jet ski with a bigger and more powerful engine.
Read on to learn more about the Sea-Doo Spark’s top speed and other cool info about this fast yet lightweight jet ski.
Also, take a look at three popular Amazon products that are must-have accessories for a Sea-Doo Spark:
Sea-Doo Spark Top Speed – How Fast Can It Go?
In comparison to a jet ski that can go Ferrari fast, the Sea-Doo Spark will have you wait a few seconds more to beat the same speed. A really quick jet ski running on powerful engines with 300 horsepower can go from a speed of zero to 60 mph in under 3 seconds. On the other hand, it’ll take the Sea-Doo Spark at least 10 seconds to get you the same kind of speed. [1] Not bad if you consider the fact that Sea-Doo is meant for beginners who wish to experience the exhilarating feeling of flying into the sea.
Doo 2 3 35 Mm
With recreation in mind, the Sea-Doo is the perfect option for anyone wanting to get their first jet ski. It’s also a personal watercraft (PWC) of choice for the conservative and those who are still trying to get comfortable in the water. Even children can manage the Sea-Doo Spark with its fair speed compared to other more powerful jet skis which are also heavier and harder to maneuver.
What’s more, Sea-Doo made sure to create the Spark with a very simple yet efficient twist-and-go mechanism for its throttle. They even have bike-like bars for an easy and familiar grip.
Sea-Doo Spark Top Speed By Model
It’s hard enough to choose the right PWC that fits your personal style. Sea-Doo assures that it has enough designs for every type of water rider out there. If you’re up to it, you can answer some of their questions like the type of rider you are, the seating capacity you prefer, the riding time you wish to engage in, the type of water that suits your speed, your comfort, maneuvering and handling, if you engage in tow sports, and of course the price.
Who knows? With a Sea-Doo, you might go from a shy, moderate watersport enthusiast to a full-throttle, high-flying sea-doo racer due to its easy controls. It also wouldn’t hurt that you’re willing to spend on extras that would make your water adventure so much fun and easier.
To help you choose the best Sea-Doo Spark model with the top speed of your choice, we compiled a list for you.
Important note: The top speeds listed for each Sea-Doo model is an approximate estimation. Discrepancies upon actual top speeds may vary due to several factors that will be mentioned in the next part of the article below.
Factors That Affect Sea-doo Top Speeds
There are many reasons why your Sea-Doo model may not be as fast as the list above mentioned it to be.
Even as a beginner or a professional rider, you should know for a fact that various factors like your weight, the water conditions (it’s fairly easy to go faster on calm waters than turbulent ones), fuel tank size, and your engine’s horsepower to name a few affects your speed whether you like it or not.
The best way to determine the top speed you can go on your Sea-Doo is to take these things into consideration when you’re choosing your preferred model.
How to Make the Sea-Doo Spark Faster
The official site of Sea-Doo lets you customize the Spark with a wide array of accessories and other riding gear you might need to complete your jet ski experience, whether as a rookie or a pro.
But if you’re in for a lot of speed, the best way to go is to go light. Speed is a major factor which is why Sea-Doo opted to use the robust, yet lightweight polytec material to build their Spark line.
Of course, you should also know a few specifications of the Sea-Doo Spark that affects its speed. For example, Sea-Doo only has two engine options at the moment: the cheaper Rotax 900 ACE (60 HP and a top speed of 42mph) and the upgraded Rotax 900 H.O. ACE (90 HP and a top speed of 50 mph).
With the cheaper engine, you get less fuel consumption which means a better fuel economy. On the other hand, the upgraded engine gives you better top speed and quicker acceleration time.
While it doesn’t really affect the speed, considering the iBR (intelligent brake and reverse mechanism) of your Sea-Doo Spark model is also a must for safety. Spark models that come with 90 horsepower engines are equipped with this feature for a safer ride. An available iBR system allows you to start in neutral, stop quicker, and dock easier. A luxury for some, but a necessary safety feature for most jet ski riders, especially new ones.
Isn’t the Sea-doo Spark Too Good to Be True?
Initially, the Sea-Doo Spark is perfect for a lot of recreation and playful riding on the sea complete with tricks. However, it’s not the best jet ski to choose if you’re thinking of long-distance rides. You may push it though and find yourself stranded in the middle of the sea – something you’d definitely want to avoid.
Another thing you should keep in mind is that the Sea-Doo Spark is made for limited seating only. It has more room to offer for one rider, but the max it can hold is 2 or maybe 3. Even sitting three adults with the 3up seating might feel uncomfortable for adults.
Should You Buy the Sea-doo Spark?
If you’re a beginner at jet-skiing, then the answer would be yes. As of this writing, the Sea-Doo Spark is still renowned as the best beginner jet ski to go for. Unless of course, you’re counting the Spark Trixx which is just an upgrade of the original Sea-Doo Spark with a top speed of 50 mph or possibly 55mph1.
Before, only those who are experienced with riding a jet ski can buy their own PWC and enjoy a good water sport or a leisure time at sea. But the Sea-Doo Spark’s entrance into the scene made it possible even for beginners to enjoy playful riding and easily transition rookies to becoming pros with their more powerful GT and RX series.
For many years, Sea-Doo has been consistent with improving its jet skis, most especially their Spark line, making it one of the most popular choices in the PWC world today.
Which Sea-doo Model Should You Go For?
With many different models to choose from, it can be a difficult choice. The top speed alone is not good enough as your sole deciding factor. Choosing a PWC definitely takes more than speed and it’s best that you know the watercraft that fits your style and preferences.
To help you with that, we did a brief description of each model series and a few ideas to give you a hint of which one might be the ideal watercraft for your needs.
Recreation Lite series: the Sea-Doo Spark and the Spark Trixx
The 2018 Spark Trixx is the newest jet ski model from Sea-Doo. Powered by the most lightweight and compact Rotax engine, the Spark Trixx has a top speed of 50 to 55 mph compared to its predecessor, Spark with just a top speed of 45 to 50 mph. It also features an advanced throttle system that is electronically operated for a more responsive ride that suits your style if you wish to go faster.
Recreation series: GTI 90/130 and GTI SE 130/170
Doo 2 3 35 Cm
The Sea-Doo Recreation series is meant for the more serious water adventurer. It reaches faster top speeds than the Spark at around 60 mph. If you’re a fan of going fast and bumpy rides like a dolphin, this is the perfect PWC for you.
Touring series: GTX LimitedGTX 170/230 and 230/300
With more powerful engines, the Sea-Doo Touring series lives up to its name of covering more distance while you go at faster speeds. But unlike other watercraft, the GTX series allows you to enjoy a leisurely tour with all the comforts that a PWC can provide.
Tow Sports series: Wake Pro 230 and Wake 170
If you or your friends enjoy surfing, wakeboarding, or skating on the water, the Sea-Doo Tow Sports series is for you. It comes equipped with tilt steering and removable wakeboards so your friends and family can have more fun in the water as you go at high speeds.
Performance series: GTR 230, RXP-X 300 and RXT-X 300
The Sea-Doo Performance series is not really newbie-friendly – unless you’re just beginning to go professional with jet skiing. With more powerful engines that blast with speed on the water, the GTR, RXP, and RXT series will do well in racing tournaments. It would be best to choose this model if you are an experienced rider already.
Sport Fishing series: Fish Pro
Fishing may not be everybody’s hobby, but if it’s yours the Sea-Doo Fish Pro will not disappoint. The Fish Pro is a first of its own watercraft dedicated to fishing. It’s also factory-equipped for people who participate in recreational fishing all over the world. Compared to other Sea-Doo models, the Fish Pro is longer, more spacious, and is more stable to accommodate both fisher and fish on board.
Final Thoughts
Before we end, let’s have a short recap of the Sea-Doo Sparks top speed
The Sea-Doo Spark top speed is 50 mph.
The Spark Trixx is just an upgrade of the original Spark with a more advanced Rotax 900 H.O. ACE for better speed and quicker acceleration. At most, the Spark Trixx’s top speed is capped at 55 mph.
Several factors like fuel tank size, engine horsepower, water conditions, and even your weight can affect the top speed of your Sea-Doo watercraft.
Sea-Doo has so many models that you can choose from. It doesn’t matter if you’re a beginner, or a pro watersport enthusiast, or you’re into recreational or professional fishing. Sea-Doo has got your back whatever your style for water recreation.
The Sea-Doo Spark remains to be the best water jet ski for beginners all around the globe with the Spark Trixx next in line.