Product Detail
- Product: FR157 fast recovery diode.
- Rating: 1.5A, 1000V.
- Package: DO-15.
- Use case: auxiliary supplies.
Product Description
This FR157 fast recovery diode page is for compact circuits that need 1.5A current, 1000V reverse-voltage margin and faster recovery in a DO-15 package. You can compare FR157 by current duty, surge rating, recovery time, forward drop, body size, lead pitch and heat. It fits auxiliary supplies, clamp paths, LED driver sections and repair boards where 1A parts are close to the limit but 2A stocking is not required. Lian Tuo helps you decide whether FR157 is the right middle option. That keeps FR157 tied to the middle current class.
Our FR157 Fast Recovery Diode Options
| FR157 Fast Recovery Diode | 1.5A 1000V DO-15 part for compact fast recovery paths. |
| FR107 Fast Recovery Diode | 1A DO-41 option when current demand is lower. |
| FR207 Fast Recovery Diode | 2A DO-15 direction when load or surge margin increases. |
| DO-15 FR Diode | Slim axial package route for compact through-hole boards. |
| 1.5A Fast Recovery Equivalent | Replacement path when current class and body size need balance. |
Feature Box
- 1.5A FitMiddle current class supports compact supply positions.
- 1000V BlockingVoltage margin suits stressed auxiliary circuits.
- DO-15 BodySlim axial package keeps board space practical.
- Recovery UpgradeFast behavior improves over standard rectifiers.
Use The In-Between Rating
A FR157 fast recovery diode is useful when 1A parts are too light but 2A stocking is more than the design needs. The 1.5A class can fit compact boards well. Check duty cycle and temperature before deciding it is enough. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class.
Keep Compact Board Space
FR157 keeps a slim DO-15 route for through-hole layouts. A FR157 fast recovery diode replacement should match body size, lead pitch and insertion style. That prevents a current upgrade from forcing mechanical changes. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board.
Match Recovery To The Node
Auxiliary outputs and clamp paths may benefit from faster recovery even at modest current. A FR157 fast recovery diode should be chosen by waveform speed and voltage stress, not only because it fits the holes. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class.
Clarify FR Series Choices
FR107, FR157 and FR207 can be confused when only partial markings are visible. Lian Tuo can compare FR157 fast recovery diode options by current class, package and voltage so repair or purchasing teams choose the right level. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board.
Vertical Product Applications
Auxiliary Supply Outputs
Use a FR157 fast recovery diode in auxiliary supply outputs when 1.5A current and faster recovery fit the waveform. The selected part should match 1000V stress and board temperature. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board.
LED Driver Clamp Paths
LED driver clamp paths may need a compact diode that turns off faster than a standard rectifier. A FR157 fast recovery diode can fit when surge and recovery behavior are checked together. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class.
Repair Stock Balancing
Repair stock programs sometimes need a middle current class between FR107 and FR207. A FR157 fast recovery diode helps when package fit, current and voltage are all confirmed. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board.
FAQ
What is FR157 fast recovery diode used for?
It is used in 1.5A, 1000V class fast rectifier positions where a compact DO-15 body is needed. It fits auxiliary supplies, LED drivers and clamp paths. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class.
How is FR157 different from FR107?
FR157 provides a higher current class and typically uses a DO-15 body, while FR107 is commonly a 1A DO-41 direction. Package and current margin differ. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board.
Can FR157 replace FR207?
Only if the circuit current and surge stress are within the 1.5A class. FR207 is a 2A direction, so replacement should be reviewed before approval. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class.
What data helps quote FR157?
Send voltage, current, recovery requirement, package, surge condition, old marking and quantity. A board photo helps confirm DO-15 body length and lead pitch. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board.
Can FR157 be used in switching supplies?
It can fit selected moderate-frequency positions when recovery, current and temperature are within range. More demanding nodes may need UF or ultrafast families. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class.
Why choose 1.5A instead of 2A?
A 1.5A part can be practical when the design does not need 2A margin and wants compact package fit or simpler stocking. Duty cycle should decide. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board.
Can Lian Tuo support FR157 equivalents?
Yes. We can compare FR157, FR107, FR207 and 1.5A fast recovery diode equivalents by voltage, current, package and recovery need. It also helps avoid oversizing a compact board. That keeps FR157 tied to the middle current class. It also helps avoid oversizing a compact board.
