SE20FG-M3/H Vishay Diode (Small Outline Diode Flat Lead) In Stock
Vishay SE20FG-M3/H is a general-purpose silicon rectifier diode rated 2A forward current and 400V reverse voltage with 920ns reverse recovery time in DO-219AB SMD package. Low leakage current design available from stock with worldwide shipping.
- Manufacturer
- Vishay
- Package
- Small Outline Diode Flat Lead
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- SE20FG-M3/H Datasheet PDF
- Category
- Diode
- Price
- From $0.0970(MOQ 6000)
- Temp Range
- -55.0°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SE20FG-M3/H?
- 2A forward current and 400V reverse voltage rating for robust general-purpose rectification
- 920ns reverse recovery time suitable for low-to-medium frequency rectifier circuits up to 1kHz
- Low leakage current silicon construction minimizing standby power loss in rectifier bridges
- Compact DO-219AB (2-pin flat lead) SMD package for surface mount assembly with 1.1V maximum forward voltage
What is SE20FG-M3/H used for?
The SE20FG-M3/H is designed for half-wave and full-wave rectification in AC-DC power supply circuits operating at voltages up to 400V with load currents up to 2A. Its 920ns recovery time and low leakage current make it appropriate for freewheeling diode applications in relay driver circuits and low-frequency switching converters. This rectifier is commonly used in consumer electronics power adapters, industrial SMPS auxiliary supplies, and battery charging circuits requiring reliable high-voltage rectification in a compact SMD footprint.
What are the specifications of SE20FG-M3/H?
| Factory Lead Time | 10Weeks |
| YTEOL | 6 |
| Additional Feature | LOW LEAKAGE CURRENT |
| Application | GENERAL PURPOSE |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1.1V |
| JEDEC-95 Code | DO-219AB |
| JESD-30 Code | R-PDSO-F2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 35A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 1.7A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Rep Pk Reverse Voltage-Max | 400V |
| Reverse Current-Max | 5 µA |
| Reverse Recovery Time-Max | 0.92 µs |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | FLAT |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Diode Flat Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
| Country of Origin | Mainland China |
Where can I find the SE20FG-M3/H datasheet?
SE20FG-M3/H Datasheet DownloadOfficial datasheet from Vishay
What are equivalent replacements for SE20FG-M3/H?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage and current ratings make SE20FG-M3/H suitable for full-wave bridge rectifier circuits?
The SE20FG-M3/H is rated for 400V peak inverse voltage and 2A average forward current, making it suitable for full-wave bridge rectifiers on 120V AC and 230V AC mains inputs. In a bridge configuration, peak reverse voltage reaches 1.41 times RMS voltage (325V for 230V AC), well within the 400V rating, and 2A continuous current supports power supplies up to 460W at 230V input.
How does the 920ns reverse recovery time of SE20FG-M3/H limit its use in switching power supply designs?
The 920ns reverse recovery time restricts SE20FG-M3/H to rectification at frequencies below approximately 100kHz, where recovery time is less than 10% of the switching period. At 50Hz mains frequency, recovery time is negligible at less than 0.005% of the cycle, making the diode ideal for linear power supplies and low-frequency rectifier stages while Schottky alternatives with sub-50ns recovery are needed above 100kHz switching circuits.
What advantage does the DO-219AB SMD package offer over axial DO-41 package diodes of the same rating?
The DO-219AB flat lead SMD package enables automated pick-and-place assembly and reduces board area versus through-hole DO-41 axial diodes. The DO-219AB footprint measures approximately 3.7mm × 2.1mm compared to the DO-41's 9mm body plus 2 lead holes, saving over 15mm² of PCB real estate per diode and eliminating the need for wave soldering, reducing manufacturing cost by 20 to 30% in high-volume production.
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Why Buy from FindMyChip
About Vishay
Vishay is a leading electronic component manufacturer. FindMyChip sources Vishay ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 6000+ | $0.1180 | $708.00 |
| 9000+ | $0.1020 | $918.00 |
| 12000+ | $0.0989 | $1187.28 |
| 15000+ | $0.0970 | $1455.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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