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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Vishay General Semiconductor - Diodes Division SE20FJ-M3/I

Name: SE20FJ-M3/I
Brand: Vishay General Semiconductor - Diodes Division
SKU: SE20FJ-M3/I
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SE20FJ-M3/I

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: DO-219AB

Datasheet:: SE20FJ-M3/I.pdf

Description:: DIODE GEN PURP 600V 1.7A DO219AB

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Product details

Overview

SE20FJ-M3/I from Vishay General Semiconductor is a surface-mount standard rectifier diode in the eSMP® Series, configured as a single silicon junction device with 600 V maximum repetitive peak reverse voltage (V_RRM), 2.0 A average forward current (I_F(AV)), and 0.85 V forward voltage at 2.0 A and 125 °C. It is used for power line polarity protection in automotive, industrial, and commercial DC power supplies.

For engineers reviewing the SE20FJ-M3/I datasheet, SE20FJ-M3/I pinout, SE20FJ-M3/I application, or SE20FJ-M3/I equivalent, key selection factors include its DO-219AB (SMF) package compatibility, AEC-Q101 qualification path (via HM3 suffix), low thermal resistance (R_θJM = 20 °C/W), and 175 °C maximum junction temperature capability.

Technical Context

This device implements an oxide planar chip junction structure enabling low forward voltage drop and low leakage current. Its 920 ns typical reverse recovery time (t_rr) and 13 pF junction capacitance at 4.0 V/1 MHz support moderate-speed switching in non-resonant rectification circuits.

Designed for wave and reflow soldering, it meets J-STD-020 MSL Level 1 and JESD 201 Class 2 whisker test requirements. The matte tin-plated terminals and halogen-free, RoHS-compliant molding compound align with automotive and industrial reliability standards.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - supports input rectification in 400 V AC mains-derived supplies without derating
I_F(AV)	2.0 A - continuous DC output capability at 125 °C ambient on 10 mm × 10 mm 2 oz. FR4 pad
V_F @ 2.0 A, 125 °C	0.85 V - reduces conduction loss to ≤1.7 W at full rated current
I_R @ 600 V, 125 °C	100 μA - ensures minimal leakage-induced standby power loss in high-impedance hold-up circuits
t_rr	920 ns - compatible with 50–100 kHz flyback and forward converter primary-side rectification
T_J max.	175 °C - enables operation in under-hood automotive environments without thermal shutdown
R_θJM	20 °C/W - allows efficient heat transfer to PCB copper when mounted per recommended footprint

Pinout & Package

Package: SMF (DO-219AB), low-profile surface-mount case with cathode band marking; compatible with automated placement and reflow/wave soldering per J-STD-002.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry terminal	Connected to AC input or transformer secondary; must withstand I_FSM = 35 A surge
Cathode	Current exit terminal	Marked by color band; connects to bulk capacitor positive rail or downstream regulator input

Key Features

Feature	Design Value
Oxide planar chip junction	Enables stable V_F and I_R performance across temperature and lifetime
ESD robustness (H3B class)	Withstands >8 kV contact-mode HBM ESD, reducing board-level transient protection overhead
UL 94 V-0 molding compound	Prevents flame propagation during fault conditions in enclosed power modules
AEC-Q101 qualification path	Supports automotive-grade sourcing via HM3 suffix variants without redesign
Low R_θJM (20 °C/W)	Permits direct thermal coupling to PCB ground plane for passive cooling in space-constrained layouts

Applications

AC/DC Power Adapter Input Rectification	Automotive Body Control Module (BCM) Reverse Polarity Protection
Use Scenario: Converts 100–240 V AC mains to unregulated DC in compact wall adapters and open-frame PSUs. IC Role / Device Role / Timing Role: Single-phase bridge half-leg rectifier handling 2.0 A average output current. Use Value: 0.85 V V_F at 125 °C minimizes thermal rise in sealed enclosures; DO-219AB footprint saves board area vs. SMA.	Use Scenario: Protects 12 V/24 V BCM electronics against battery misconnection in vehicles. IC Role / Device Role / Timing Role: Series-connected polarity guard placed between battery feed and system input. Use Value: 175 °C T_J max and AEC-Q101-qualified variants ensure reliability in under-dash thermal environments.
Industrial PLC Digital Input Protection	Commercial LED Driver Bulk Capacitor Charging Limiter
Use Scenario: Blocks reverse current and clamps transients on 24 V DC sensor inputs in programmable logic controllers. IC Role / Device Role / Timing Role: Reverse-blocking element in input protection network upstream of optocoupler or ADC front-end. Use Value: 100 μA I_R at 125 °C prevents false triggering in high-impedance sensing paths.	Use Scenario: Limits inrush current during initial charge of 400 V-rated bulk capacitors in constant-current LED drivers. IC Role / Device Role / Timing Role: Series rectifier in passive PFC or simple choke-input filter stage. Use Value: 35 A I_FSM withstands repeated cold-start surges without degradation.

AC/DC Power Adapter Input Rectification

Automotive Body Control Module (BCM) Reverse Polarity Protection

Use Scenario: Converts 100–240 V AC mains to unregulated DC in compact wall adapters and open-frame PSUs.

IC Role / Device Role / Timing Role: Single-phase bridge half-leg rectifier handling 2.0 A average output current.

Use Value: 0.85 V V_F at 125 °C minimizes thermal rise in sealed enclosures; DO-219AB footprint saves board area vs. SMA.

Use Scenario: Protects 12 V/24 V BCM electronics against battery misconnection in vehicles.

IC Role / Device Role / Timing Role: Series-connected polarity guard placed between battery feed and system input.

Use Value: 175 °C T_J max and AEC-Q101-qualified variants ensure reliability in under-dash thermal environments.

Industrial PLC Digital Input Protection

Commercial LED Driver Bulk Capacitor Charging Limiter

Use Scenario: Blocks reverse current and clamps transients on 24 V DC sensor inputs in programmable logic controllers.

IC Role / Device Role / Timing Role: Reverse-blocking element in input protection network upstream of optocoupler or ADC front-end.

Use Value: 100 μA I_R at 125 °C prevents false triggering in high-impedance sensing paths.

Use Scenario: Limits inrush current during initial charge of 400 V-rated bulk capacitors in constant-current LED drivers.

IC Role / Device Role / Timing Role: Series rectifier in passive PFC or simple choke-input filter stage.

Use Value: 35 A I_FSM withstands repeated cold-start surges without degradation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar standard rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay SE20FJHM3/I	AEC-Q101 qualified; identical electrical specs and DO-219AB package	Required for automotive production; same layout but different qualification status	Select SE20FJHM3/I when automotive PPAP compliance is mandatory
ON Semiconductor MUR220SFT1G	Higher V_RRM (200 V), faster t_rr (75 ns), TO-220AC package	Not surface-mount; requires heatsink for 2 A operation; suited for higher-frequency SMPS	Choose only if faster recovery and higher surge rating outweigh SMT and footprint constraints

Compared with SE20FJ-M3/I, SE20FJHM3/I adds AEC-Q101 qualification without electrical or mechanical change, while MUR220SFT1G trades SMT compatibility and thermal efficiency for ultrafast recovery-making it unsuitable for drop-in replacement but viable where speed dominates layout priorities.

Availability

SE20FJ-M3/I is available at Aetrix Electronics and suitable for AC/DC power adapters, automotive body control modules, and industrial PLC input protection requiring stable component supply, consistent tape-and-reel delivery, and long-term manufacturing continuity.

Supply support for SE20FJ-M3/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.

The eSMP® Series-including SE20FJ-M3/I-is engineered for high-power-density surface-mount rectification in automotive, industrial, and consumer power systems where thermal performance and board space are critical.

FAQ

What is the maximum junction temperature rating for SE20FJ-M3/I?

The SE20FJ-M3/I has a maximum junction temperature (T_J) rating of +175 °C, verified per Vishay's thermal characterization data. This allows sustained operation in high-ambient environments such as under-hood automotive locations or enclosed industrial power supplies. Derating curves confirm usable current capacity up to this limit when mounted on the specified 10 mm × 10 mm copper pad. SE20FJ-M3/I maintains parameter stability within spec across its full -55 °C to +175 °C operating range.

Is SE20FJ-M3/I AEC-Q101 qualified?

No, SE20FJ-M3/I is not AEC-Q101 qualified. The HM3 suffix variant (e.g., SE20FJHM3/I) carries the AEC-Q101 qualification. SE20FJ-M3/I shares identical electrical and mechanical specifications-including DO-219AB package, V_RRM = 600 V, and I_F(AV) = 2.0 A-but lacks the extended stress testing required for automotive qualification. SE20FJ-M3/I remains suitable for industrial and commercial applications where AEC-Q101 is not mandated.

What does the "I" suffix mean in SE20FJ-M3/I?

The "I" suffix in SE20FJ-M3/I denotes the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 10,000 units per reel. This contrasts with the "H" suffix (e.g., SE20FJ-M3/H), which indicates a 7-inch reel containing 3,000 units. Both share identical device die, SMF (DO-219AB) package, and halogen-free/RoHS-compliant construction. SE20FJ-M3/I is optimized for high-volume SMT line feeding.

How does SE20FJ-M3/I compare to SE20FD-M3/I and SE20FG-M3/I?

SE20FJ-M3/I differs from SE20FD-M3/I and SE20FG-M3/I solely in maximum repetitive peak reverse voltage: SE20FJ-M3/I is rated at 600 V, SE20FG-M3/I at 400 V, and SE20FD-M3/I at 200 V. All three share identical package (DO-219AB), thermal characteristics (R_θJA = 130 °C/W), forward voltage (0.85 V @ 2.0 A, 125 °C), and reverse leakage (100 μA @ 125 °C). SE20FJ-M3/I is selected when higher input voltage isolation or safety margin is required in the application design.

What is the reverse recovery time (t_rr) of SE20FJ-M3/I and its design implication?

The SE20FJ-M3/I has a typical reverse recovery time (t_rr) of 920 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A test conditions. This value reflects moderate-speed recovery suitable for line-frequency and low-to-mid frequency (<100 kHz) switching applications such as basic flyback converters or choke-input filters. It is not intended for high-frequency ZVS or resonant topologies where sub-100 ns recovery is required. SE20FJ-M3/I's t_rr contributes directly to switching loss and EMI profile in hard-switched designs.

SE20FJ-M3/I Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: DO-219AB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 V

Current - Average Rectified (Io):: 1.7A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 2 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 920 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 600 V

Capacitance @ Vr, F:: 13pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-219AB (SMF)

Operating Temperature - Junction:: -55°C ~ 175°C

SE20FJ-M3/I FAQ

1.How can I place an order for SE20FJ-M3/I through Aetrix?

Please submit a Request for Quotation (RFQ) for SE20FJ-M3/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SE20FJ-M3/I reliable?

The price and inventory of SE20FJ-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SE20FJ-M3/I is usually 5 days.

3.What payment methods are accepted for SE20FJ-M3/I?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SE20FJ-M3/I transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SE20FJ-M3/I?

SE20FJ-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SE20FJ-M3/I order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SE20FJ-M3/I?

For technical support, including SE20FJ-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SE20FJ-M3/I requirements.

6.How does Aetrix verify that SE20FJ-M3/I is sourced from the original manufacturer or authorized distributors?

All SE20FJ-M3/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SE20FJ-M3/I meets industry standards.

7.What is the process for return or replacement of SE20FJ-M3/I?

All SE20FJ-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SE20FJ-M3/I, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SE20FJ-M3/I part is unused and in its original packaging.

Return procedure for SE20FJ-M3/I:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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