| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| VIPER25HN | STMicroelectronics | Check for Price | Switching Regulator, Current-mode, 250kHz Switching Freq-Max, PDIP7 | VIPER25LN vs VIPER25HN |
| VIPER15HN | STMicroelectronics | Check for Price | Switching Controller, Current-mode, 250kHz Switching Freq-Max, PDIP7 | VIPER25LN vs VIPER15HN |
Part Details for VIPER25LN by STMicroelectronics
Results Overview of VIPER25LN by STMicroelectronics
- Distributor Offerings: (18 listings)
- Number of FFF Equivalents: (0 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (2 options)
- CAD Models: (Available)
- 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.
VIPER25LN Information
VIPER25LN by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for VIPER25LN
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
|
DISTI #
497-9074-5-ND
|
DigiKey | IC OFFLINE SWITCH FLYBACK 7DIP Min Qty: 1 Container: Tube |
1692 Tube |
|
$0.6250 / $1.2100 | Buy Now |
|
DISTI #
26119214
|
Verical | AC to DC Switching Converter Off-Line Switcher 150kHz Tube 7-Pin PDIP RoHS: Compliant Min Qty: 15 Package Multiple: 1 Date Code: 1229 | Americas - 1248 |
|
$0.3873 | Buy Now |
|
DISTI #
93308473
|
Verical | AC to DC Switching Converter Off-Line Switcher 150kHz Tube 7-Pin PDIP RoHS: Compliant Min Qty: 5 Package Multiple: 1 | Americas - 180 |
|
$0.5437 / $1.0449 | Buy Now |
|
DISTI #
V79:2366_17796270
|
Arrow Electronics | AC to DC Switching Converter Off-Line Switcher 150kHz Tube 7-Pin PDIP COO: China RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 99 Weeks Date Code: 1229 | Americas - 1248 |
|
$0.3873 | Buy Now |
|
DISTI #
P02:6590_01986585
|
Arrow Electronics | AC to DC Switching Converter Off-Line Switcher 150kHz Tube 7-Pin PDIP RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 99 Weeks | Asia - 180 |
|
$0.5437 / $1.0449 | Buy Now |
|
|
STMicroelectronics | VIPerPlus family: Quasi-resonant high performance off line high voltage converter COO: China Min Qty: 1 | 0 |
|
$0.5600 / $1.1900 | Buy Now |
|
|
Bristol Electronics | AC to DC Switching Converter Off-Line Switcher 150kHz Tube 7-Pin PDIP Min Qty: 1 | 1970 |
|
$0.4286 / $1.6485 | Buy Now |
|
|
Quest Components | 1576 |
|
$0.5495 / $2.1980 | Buy Now | |
|
|
Quest Components | 1576 |
|
$0.8787 / $2.3432 | Buy Now | |
|
DISTI #
V79:2366_17796270
|
Arrow Electronics | AC to DC Switching Converter Off-Line Switcher 150kHz Tube 7-Pin PDIP COO: China RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 99 Weeks Date Code: 1229 | Americas - 1248 |
|
$0.3873 | Buy Now |
US Tariff Estimator: VIPER25LN by STMicroelectronics
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
VIPER25LN CAD Models
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VIPER25LN Part Data Attributes
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VIPER25LN
STMicroelectronics
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Datasheet
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Compare Parts:
VIPER25LN
STMicroelectronics
Switching Regulator, Current-mode, 150kHz Switching Freq-Max, PDIP7
|
| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | DIP | |
| Package Description | Dip-8/7 | |
| Pin Count | 7 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Analog IC - Other Type | Switching Regulator | |
| Control Mode | Current-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 23.5 V | |
| Input Voltage-Min | 8.5 V | |
| Input Voltage-Nom | 14 V | |
| JESD-30 Code | R-PDIP-T7 | |
| JESD-609 Code | e3 | |
| Length | 9.02 Mm | |
| Number of Functions | 1 | |
| Number of Terminals | 7 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -25 °C | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | DIP | |
| Package Equivalence Code | DIP7/8,.3 | |
| Package Shape | Rectangular | |
| Package Style | In-Line | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 5.33 Mm | |
| Supply Current-Max (Isup) | 3.5 Ma | |
| Surface Mount | No | |
| Switcher Configuration | Single | |
| Switching Frequency-Max | 150 Khz | |
| Terminal Finish | Matte Tin | |
| Terminal Form | Through-Hole | |
| Terminal Pitch | 2.54 Mm | |
| Terminal Position | Dual | |
| Width | 7.62 Mm |
Alternate Parts for VIPER25LN
This table gives cross-reference parts and alternative options found for VIPER25LN. 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 VIPER25LN, 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.
VIPER25LN Frequently Asked Questions (FAQ)
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STMicroelectronics provides a recommended PCB layout in the application note AN4571, which includes guidelines for component placement, thermal management, and routing to minimize electromagnetic interference (EMI) and ensure reliable operation.
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The transformer selection depends on the input voltage, output voltage, and power rating of your design. STMicroelectronics provides a transformer selection guide in the application note AN4571, which includes a list of recommended transformers and their characteristics.
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The VIPER25LN is rated for operation up to 150°C ambient temperature, but the maximum ambient temperature for reliable operation depends on the specific application and the thermal management of the system. It is recommended to follow the thermal design guidelines in the application note AN4571 to ensure reliable operation.
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To ensure EMC in your VIPER25LN design, follow the guidelines in the application note AN4571, which includes recommendations for component selection, PCB layout, and shielding to minimize electromagnetic interference (EMI) and ensure compliance with relevant EMC standards.
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The recommended input capacitor type is an X7R or X5R ceramic capacitor with a value of 1-10 μF, depending on the input voltage and frequency of your design. The input capacitor should be placed as close as possible to the VIN pin of the VIPER25LN to minimize noise and ensure stable operation.