My Inquiry
My Account
Vishay General Semiconductor - Diodes Division V1FL45-M3/H
- Part No.:
- V1FL45-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-219AB
- Datasheet:
-
V1FL45-M3/H.pdf
- Description:
- DIODE SCHOTTKY 45V 1A DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:13,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
V1FL45-M3/H from Vishay General Semiconductor is a surface-mount Trench MOS Barrier Schottky (TMBS®) rectifier in SMF (DO-219AB) package, rated for 45 V repetitive peak reverse voltage, 1.0 A average forward current, and 30 A non-repetitive surge current, with VF = 0.36 V at 1 A and 125 °C - used for polarity protection and freewheeling in DC/DC converters.
For engineers reviewing the V1FL45-M3/H datasheet, V1FL45-M3/H pinout, V1FL45-M3/H application, or V1FL45-M3/H equivalent, key selection criteria include low VF at high temperature, AEC-Q101 qualification eligibility (via HM3 suffix), MSL Level 1 solderability, and thermal resistance RθJA = 125 °C/W on FR4.
Technical Context
This TMBS® rectifier uses trench MOS Schottky technology to achieve lower forward voltage and reduced power loss versus planar Schottky diodes. Its single-anode/cathode configuration supports unidirectional conduction in compact high-frequency switching paths.
Designed for automated SMT placement and wave/reflow soldering, it meets J-STD-020 MSL Level 1 (260 °C peak) and JESD 201 Class 2 whisker resistance. The SMF package features matte tin-plated leads and UL 94 V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - maximum reverse blocking capability without breakdown under repetitive conditions |
| IF(AV) | 1.0 A - continuous DC forward current rating at TA = 25 °C with derating above 25 °C |
| IFSM | 30 A - surge current handling for 8.3 ms half-sine, critical for inductive load turn-off |
| VF @ 1 A, 125 °C | 0.36 V - low conduction loss at elevated junction temperature, improving system efficiency |
| TJ max. | +150 °C - extended thermal operating range enables use in under-hood automotive environments |
| RθJA | 125 °C/W - junction-to-ambient thermal resistance on standard 2 oz. FR4 PCB, defines heatsinking needs |
| CJ @ 4 V, 1 MHz | 190 pF - low junction capacitance minimizes switching losses in high-frequency DC/DC topologies |
Pinout & Package
Package: SMF (DO-219AB), low-profile surface-mount case with cathode marked by color band; compatible with SOD-123W footprint but dimensionally distinct (3.9 mm × 1.7 mm × 1.08 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to input/source side of rectification path; requires adequate copper pour for thermal dissipation |
| Cathode | Forward current exit terminal | Marked by color band; connects to output/load side; serves as primary thermal interface to PCB mount pad |
Key Features
| Feature | Design Value |
|---|---|
| Trench MOS Schottky architecture | Enables 0.36 V VF at 1 A and 125 °C - reduces conduction loss by ~15–20% vs. planar Schottky equivalents |
| MSL Level 1 rating | Supports reflow up to 260 °C peak without preconditioning - eliminates moisture sensitivity handling overhead |
| AEC-Q101 qualification path | HM3 suffix variant available - enables use in automotive power modules requiring stress-tested reliability |
| UL 94 V-0 molding compound | Ensures flame-retardant behavior in enclosed industrial enclosures and EV charging systems |
Applications
| DC/DC Converter Output Rectification | Polarity Protection Circuit |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12 V → 5 V/3.3 V buck-derived converters. IC Role / Device Role / Timing Role: Unidirectional freewheeling diode replacing MOSFET body diode to reduce conduction loss. Use Value: 0.36 V VF at 125 °C lowers average power loss by >0.1 W vs. standard Schottky, improving efficiency at full load. | Use Scenario: Reverse-voltage blocking at power input of industrial IoT sensor nodes powered via 24 V PoE or field wiring. IC Role / Device Role / Timing Role: Input protection diode placed before LDO or DC/DC regulator. Use Value: 45 V VRRM provides 2× margin over 24 V nominal rail; 30 A IFSM withstands hot-plug transients. |
| Automotive Body Control Module (BCM) | Freewheeling in Brushed DC Motor Drivers |
Use Scenario: Power rail protection in BCM sub-modules (e.g., window lift, mirror control) exposed to load dump pulses. IC Role / Device Role / Timing Role: Clamp diode across relay coils or solenoid drivers to suppress inductive kickback. Use Value: 150 °C TJ max. and AEC-Q101-compatible construction ensure operation in under-dash ambient up to 105 °C. | Use Scenario: Freewheeling path across brushed DC motor windings in power tools or HVAC actuators. IC Role / Device Role / Timing Role: Provides low-loss return path during PWM off-time to maintain current continuity. Use Value: Low RθJM = 23 °C/W allows direct thermal coupling to copper plane, sustaining 1 A continuous without heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSSAF110M-M3/61T | Same SMF package, 100 V VRRM, VF = 0.52 V @ 1 A, 125 °C | Higher voltage rating suits 48 V systems; higher VF increases conduction loss in 12/24 V rails | Select when reverse voltage margin >45 V is required and thermal budget permits higher VF |
| SB140-E3/54 | DO-214AA package, 40 V VRRM, VF = 0.55 V @ 1 A, 25 °C only; no 125 °C VF spec | Larger footprint, no MSL Level 1 rating, limited high-temp performance data | Acceptable for cost-sensitive commercial designs where 125 °C VF and reflow robustness are not critical |
Compared with V1FL45-M3/H, VSSAF110M-M3/61T trades higher voltage headroom for increased conduction loss, while SB140-E3/54 sacrifices thermal performance and process compatibility for lower unit cost - V1FL45-M3/H balances low VF at temperature, compact SMF packaging, and industrial-grade manufacturability.
Availability
V1FL45-M3/H is available at Aetrix Electronics and suitable for DC/DC converter design, automotive body electronics, and industrial polarity protection requiring stable component supply and consistent tape-and-reel delivery.
Supply support for V1FL45-M3/H 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 supplier of discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability and application-specific optimization.
The V1FL45-M3/H belongs to Vishay's eSMP® Series of ultra-low-profile surface-mount rectifiers, engineered for high-efficiency power conversion in space-constrained and thermally demanding applications.
FAQ
What is the maximum junction temperature rating for the V1FL45-M3/H?
The V1FL45-M3/H has a maximum junction temperature (TJ max.) of +150 °C, enabling reliable operation in high-ambient environments such as automotive under-hood modules or industrial power supplies. This rating is validated per JEDEC test conditions and supports sustained 1.0 A forward current with appropriate PCB thermal design. The V1FL45-M3/H must be mounted on a 2 oz. FR4 board with recommended footprint to achieve specified thermal resistance.
Is the V1FL45-M3/H RoHS-compliant and halogen-free?
Yes, the V1FL45-M3/H is halogen-free and RoHS-compliant, as confirmed by Vishay's material categorization documentation (www.vishay.com/doc?99912). The "M3" suffix explicitly denotes compliance with both requirements, and the device uses matte tin-plated terminals meeting J-STD-002 solderability standards. No lead, cadmium, mercury, hexavalent chromium, or polybrominated compounds are present above threshold limits.
Does the V1FL45-M3/H have AEC-Q101 qualification?
The V1FL45-M3/H itself is not AEC-Q101 qualified; however, the automotive-grade variant V1FL45HM3/H is fully AEC-Q101 qualified. Both share identical electrical and thermal specifications, but only the HM3 version undergoes the full stress-test sequence including HTGB, HTRB, and temperature cycling. For automotive applications requiring formal qualification, V1FL45HM3/H must be selected - the V1FL45-M3/H remains suitable for commercial and industrial use.
What is the thermal resistance from junction to ambient (RθJA) for the V1FL45-M3/H?
The typical junction-to-ambient thermal resistance (RθJA) for the V1FL45-M3/H is 125 °C/W when mounted on a standard 2 oz. FR4 PCB with the recommended footprint. This value assumes free-air convection and is measured per JEDEC 51-7. To maintain TJ ≤ 150 °C at 1.0 A, ambient temperature must remain below ~50 °C unless additional copper area or airflow is applied. RθJM = 23 °C/W reflects superior mounting-pad thermal coupling.
What does the "/H" suffix mean in V1FL45-M3/H?
The "/H" suffix in V1FL45-M3/H indicates packaging in 7-inch diameter plastic tape and reel, with a base quantity of 3000 units per reel. This delivery mode is optimized for high-speed SMT placement equipment. The "M3" portion confirms halogen-free, RoHS-compliant construction and JESD 201 Class 2 whisker resistance. Alternate packaging includes "/I" for 13-inch reels (10,000 units).
V1FL45-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- eSMP®, TMBS®
- Package/Case:
- DO-219AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 530 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 250 µA @ 60 V
- Capacitance @ Vr, F:
- 190pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
- Operating Temperature - Junction:
- -40°C ~ 150°C
V1FL45-M3/H FAQ
1.How can I place an order for V1FL45-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for V1FL45-M3/H 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 V1FL45-M3/H reliable?
The price and inventory of V1FL45-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for V1FL45-M3/H is usually 5 days.
3.What payment methods are accepted for V1FL45-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for V1FL45-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for V1FL45-M3/H?
V1FL45-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your V1FL45-M3/H 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 V1FL45-M3/H?
For technical support, including V1FL45-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your V1FL45-M3/H requirements.
6.How does Aetrix verify that V1FL45-M3/H is sourced from the original manufacturer or authorized distributors?
All V1FL45-M3/H 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 V1FL45-M3/H meets industry standards.
7.What is the process for return or replacement of V1FL45-M3/H?
All V1FL45-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with V1FL45-M3/H, 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 V1FL45-M3/H part is unused and in its original packaging.
Return procedure for V1FL45-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
V1FL45-M3/H Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
