Susumu International U.S.A.-Specialist in Thin Film Technology-
Technical FAQ Current sensing chip resistors
Part numbering
| Q1 | How do part number differs between long side terminal KRL and short side terminal KRL? Is it easy to identify ? |
|---|---|
| A1 | The length of the terminal side is the first 2 (or 3) digit in size designation. For example, long side terminals are 3216, 2012, 11050, short side terminals are 1632, 1220, 5010. |
| Q2 | There is E or D after size designation in KRL part numbers, how are they different ? |
|---|---|
| A2 | They are terminal type designators. D means bottom terminal and E means wrap around terminal. |
|
|
|
| Q3 | Is the quantity in packaging designated in a part number? What is the unit for packaging ？ |
|---|---|
| A3 | Last 2 digits designate the packaging size. It depends the product series and size. Please refer to catalogue under each series. |
Performance characteristics
| Q1 | What is the main difference in performance between long side terminal and short side terminal KRL series ? |
|---|---|
| A1 | Long side terminal products dissipates heat better. Therefore, there is a difference in power ratings in the same size long side and short side terminal products. |
|
|
|
| Q2 | KRL series has 2 terminal type and 4 terminal type. How does their performance differ ? |
|---|---|
| A2 | Four terminal type has separate voltage terminals and voltage can be measured more accurately. Land pattern can be simpler for 4 terminal type. |
| Q3 |
KRL series has high temperature type and low EMF (Electro motive force)type. How do we decide which to choose ? |
|---|---|
| A3 | Typically High temp type is chosen because you can use it at higher temperature but if there is a need to control electromotive force (less than 1mV), use low EMF type. |
Quality, reliability
| Q1 | Do KRL series meet automotive reliability ? |
|---|---|
| A1 | It is compliant to automotive electronics standard AEC-Q200. It is widely used for automotive electronics. |
| Q2 | Is any of the current sensing resistor sulfur tolerant ? |
|---|---|
| A2 | None of Susumu's chip resistors use Ag in their terminals. Therefore they are all sulfur tolerant. |
| Q3 | What is the maximum pulse power limits for KRL series ? |
|---|---|
| A3 | It depends on long side or short side terminal and, product size. Sigle pulse maximum power limit chart is shown here for product series. |
|
|
|
Mounting, packaging
Technical Information
-
- 1.Basic knowledge of resistors
- 2.Manufacturing methods and characteristics of thin film resistors
- 3.Performance characteristics of thin film resistors
- 4.High precision and high reliability
- 5.Trimmable chip resistors and altering resistive values
- 6.Application and recommended usage of thin film chip resistors
- 7.Application and recommended usage of small high power thin film ship resistors
- 8.Various methods of current sensing and advantage of current sensing resistors
- 9.Application and recommended usage of current sensing resistors
-
-
Please feel free to contact us about products,
requesting documents and samples.
Susumu International U.S.A. -Specialist in Thin Film Technology-
