My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VS-2ENH01HM3/85A
~~2.jpg)
- Part No.:
- VS-2ENH01HM3/85A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-220AA
- Datasheet:
-
VS-2ENH01HM3/85A.pdf
- Description:
- DIODE GEN PURP 100V 2A DO220AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,381
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VS-2ENH01HM3/85A from Vishay Semiconductors is an AEC-Q101 qualified ultrafast rectifier in SMP (DO-220AA) package, rated for 100 V peak reverse voltage, 2 A average forward current, and 23 ns typical reverse recovery time. It delivers low forward voltage drop (0.79 V at 2 A, 150 °C), low leakage (<2 μA at rated VR), and operates up to 175 °C junction temperature - optimized for high-frequency PFC and CRM snubber circuits in automotive and industrial power supplies.
For engineers reviewing the VS-2ENH01HM3/85A datasheet, VS-2ENH01HM3/85A pinout, VS-2ENH01HM3/85A application, or VS-2ENH01HM3/85A equivalent, key selection criteria include its 23 ns trr at 100 V/2 A, 0.79 V VF at 150 °C, MSL Level 1 qualification, 1.0 mm profile, and SMP package compatibility with automated SMT placement.
Technical Context
This device belongs to Vishay's FRED Pt® eSMP® series of ultrafast recovery diodes, engineered for minimal stored charge (Qrr = 15 nC typ. at 25 °C) and fast soft recovery to reduce EMI in high-dV/dt switching environments. Its single-diode configuration supports freewheeling and snubber functions in discontinuous conduction mode (DCM) PFC stages and flyback secondary rectification.
The SMP (DO-220AA) package enables high thermal efficiency with RthJM = 7 °C/W (typ.) under infinite heatsink conditions and supports reflow soldering at 260 °C peak per J-STD-020. Polarity is marked by a cathode band; terminals are matte tin-plated and whisker-tested per JESD 201 Class 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage (VRRM) | 100 V - supports input rectification and snubber clamping in 48 V–96 V DC bus systems without derating. |
| Average Forward Current (IF(AV)) | 2 A at TC = 158 °C - enables compact thermal design in space-constrained 10–30 W PFC and DC/DC converters. |
| Forward Voltage (VF) | 0.79 V at IF = 2 A, TJ = 150 °C - reduces conduction loss by ~25% vs. standard FRDs, improving efficiency in thermally stressed operation. |
| Reverse Recovery Time (trr) | 23 ns typ. at IF = 1.0 A, dIF/dt = 100 A/μs, VR = 30 V - ensures minimal switching loss and low EMI in >100 kHz CRM/PFC topologies. |
| Junction Temperature Range | -55 °C to +175 °C - validated for under-hood automotive applications and industrial environments with wide ambient swings. |
| Thermal Resistance (RthJM) | 7 °C/W typ. - allows direct mounting to copper pads for efficient heat extraction without external heatsinks in low-power designs. |
| AEC-Q101 Qualified | Yes - certified for automotive power electronics including on-board chargers, DC-DC converters, and lighting control modules. |
Pinout & Package
SMP (DO-220AA) package: surface-mount, 2-terminal, ultra-low-profile (1.0 mm typical height), matte tin-plated leads, cathode indicated by color band. Compatible with JEDEC-standard reflow profiles and automated pick-and-place.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential node (e.g., switch node in CRM PFC or transformer secondary center-tap). |
| Cathode | Current exit terminal during forward conduction; polarity-marked end | Connected to output rail or snubber capacitor; must be routed with low-inductance layout to suppress voltage spikes. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast soft recovery | trr = 23 ns (typ.), Qrr = 15 nC (typ.) - minimizes switching loss and ringing in high-frequency snubbers and PFC boost diodes. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, temperature cycling, and HTRB - suitable for safety-critical 12 V/48 V subsystems. |
| Low-profile SMP package | 1.0 mm max height - enables ultra-thin power modules and PCB stacking in space-limited EV auxiliary supplies and ADAS ECUs. |
| Halogen-free & RoHS-compliant | M3 suffix confirms lead-free terminations, halogen-free molding compound, and compliance with EU Directive 2011/65/EU. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH - eliminates bake requirements and supports just-in-time SMT assembly. |
Applications
| Automotive On-Board Charger (OBC) PFC Stage | Industrial DC/DC Converter Freewheeling Diode |
|---|---|
Use Scenario: Boost PFC rectifier in 3.3 kW bidirectional OBC operating in critical conduction mode (CRM) at 65–250 kHz. IC Role / Device Role / Timing Role: Ultrafast unidirectional current path during boost switch off-time; handles 2 A average current with <23 ns recovery to limit dv/dt-induced losses. Use Value: Enables >96% PFC efficiency at full load while meeting CISPR-25 Class 5 EMI limits due to soft recovery and low Qrr. |
Use Scenario: Output rectifier in isolated 24 V → 5 V/3 A flyback converter for PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling path for transformer secondary current; recovers before next switching cycle to prevent cross-conduction and voltage overshoot. Use Value: Reduces output ripple by 30% vs. standard FRD and eliminates need for RC snubber, saving board area and BOM cost. |
| Automotive LED Driver Snubber Diode | Server PSU Hold-Up Capacitor Charging Path |
Use Scenario: Snubber clamp diode across MOSFET in constant-current LED driver for adaptive front lighting (AFL). IC Role / Device Role / Timing Role: Absorbs inductive energy spike during MOSFET turn-off; recovers rapidly to reset before next pulse. Use Value: Limits drain voltage overshoot to <120 V (vs. >180 V with slower diodes), extending MOSFET lifetime and reducing TVS stress. |
Use Scenario: Inrush-limiting and hold-up charging diode in 48 V server PSU front-end, placed between bridge rectifier and bulk capacitor. IC Role / Device Role / Timing Role: Unidirectional charging path during AC line cycles; blocks reverse current during capacitor discharge events. Use Value: Withstands 40 A non-repetitive surge (IFSM) and maintains <2 μA leakage at 100 V, ensuring stable hold-up time over 10-year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-2ENH01HM3/84A | Identical electrical specs and SMP package; differs only in packaging - 7" tape/reel (3,000 pcs) vs. 13" tape/reel (10,000 pcs). | No functional difference; suited for low-volume prototyping or small-batch production where reel size impacts feeder compatibility. | Select /84A for engineering validation or pilot runs; /85A for high-volume manufacturing with automated SMT lines using 13" feeders. |
| ON Semiconductor NRVBFS2100T3G | Same 100 V VRRM and 2 A IF(AV), but trr = 35 ns (typ.), VF = 0.92 V (2 A, 150 °C), and no AEC-Q101 qualification. | Lacks automotive qualification and exhibits higher switching loss - acceptable for industrial consumer power, not for automotive OBC or lighting. | Choose only for cost-sensitive non-automotive applications where 12 ns slower recovery and 130 mV higher VF are tolerable. |
Compared with VS-2ENH01HM3/85A, the /84A variant offers identical performance in a smaller reel format ideal for development, while NRVBFS2100T3G provides a lower-cost alternative for non-automotive use but sacrifices AEC-Q101 compliance, softness, and thermal efficiency.
Availability
VS-2ENH01HM3/85A is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial DC/DC converters, and LED driver snubber circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for VS-2ENH01HM3/85A 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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in power rectification, precision resistors, and optoelectronics.
The VS-2ENH01HM3/85A belongs to Vishay's FRED Pt® eSMP® ultrafast diode product line, designed specifically for high-efficiency, high-reliability power conversion in automotive, industrial, and computing applications demanding low loss and robust thermal performance.
FAQ
What is the maximum junction temperature rating for VS-2ENH01HM3/85A?
The VS-2ENH01HM3/85A has a maximum junction temperature (TJ max.) of +175 °C, verified per AEC-Q101 stress testing. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Derating curves in the datasheet (Fig. 5) define allowable case temperature versus average forward current to ensure safe thermal margins for VS-2ENH01HM3/85A in continuous operation.
Is VS-2ENH01HM3/85A pin-compatible with other SMP (DO-220AA) diodes?
Yes - VS-2ENH01HM3/85A uses the standardized SMP (DO-220AA) footprint defined in Vishay document 96547, with 1.0 mm height, 2.5 mm length, and 1.3 mm width. Its anode/cathode terminal spacing and pad layout match all DO-220AA-compliant diodes, enabling mechanical interchangeability in existing PCB designs - though electrical parameters like trr and VF must be verified for functional equivalence in VS-2ENH01HM3/85A replacement scenarios.
Does VS-2ENH01HM3/85A require special handling during reflow soldering?
No special handling is required beyond standard J-STD-020 Level 1 guidelines: VS-2ENH01HM3/85A is rated for peak reflow temperatures up to 260 °C and has unlimited floor life at ≤30 °C/60% RH. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the molding compound complies with UL 94 V-0. Pre-baking is unnecessary, making VS-2ENH01HM3/85A compatible with high-throughput SMT lines without process modification.
What does the "H" and "M3" in VS-2ENH01HM3/85A signify?
In VS-2ENH01HM3/85A, "H" denotes ultrafast recovery process technology (sub-30 ns trr), and "M3" indicates halogen-free, RoHS-compliant construction with lead (Pb)-free terminations and compliant with JEDEC J-STD-020 moisture sensitivity Level 1. These suffixes confirm that VS-2ENH01HM3/85A meets automotive environmental and reliability standards without compromising electrical performance.
How does the reverse recovery charge (Qrr) of VS-2ENH01HM3/85A impact EMI in PFC designs?
With Qrr = 15 nC (typ. at 25 °C), VS-2ENH01HM3/85A minimizes high-frequency ringing and conducted EMI during reverse recovery in CRM PFC stages. Lower Qrr reduces di/dt-induced voltage spikes across stray inductance, easing filter design and helping meet CISPR-25 Class 5 limits. At 125 °C, Qrr rises to 37 nC - a known trade-off accounted for in VS-2ENH01HM3/85A's thermal derating guidance to maintain EMI compliance across full temperature range.
VS-2ENH01HM3/85A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- FRED Pt®
- Package/Case:
- DO-220AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 28 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 100 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-220AA (SMP)
- Operating Temperature - Junction:
- -55°C ~ 175°C
VS-2ENH01HM3/85A FAQ
1.How can I place an order for VS-2ENH01HM3/85A through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-2ENH01HM3/85A 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 VS-2ENH01HM3/85A reliable?
The price and inventory of VS-2ENH01HM3/85A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-2ENH01HM3/85A is usually 5 days.
3.What payment methods are accepted for VS-2ENH01HM3/85A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-2ENH01HM3/85A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-2ENH01HM3/85A?
VS-2ENH01HM3/85A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-2ENH01HM3/85A 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 VS-2ENH01HM3/85A?
For technical support, including VS-2ENH01HM3/85A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-2ENH01HM3/85A requirements.
6.How does Aetrix verify that VS-2ENH01HM3/85A is sourced from the original manufacturer or authorized distributors?
All VS-2ENH01HM3/85A 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 VS-2ENH01HM3/85A meets industry standards.
7.What is the process for return or replacement of VS-2ENH01HM3/85A?
All VS-2ENH01HM3/85A units undergo pre-shipment inspection (PSI). If there is an issue with VS-2ENH01HM3/85A, 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 VS-2ENH01HM3/85A part is unused and in its original packaging.
Return procedure for VS-2ENH01HM3/85A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-2ENH01HM3/85A 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 …
