Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Vishay General Semiconductor - Diodes Division SB2H90-E3/54

Name: SB2H90-E3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: SB2H90-E3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SB2H90-E3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: SB2H90-E3/54.pdf

Description:: DIODE SCHOTTKY 90V 2A DO204AC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,569

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SB2H90-E3/54 from Vishay General Semiconductor is a high-voltage Schottky plastic rectifier in DO-15 package, rated for 90 V repetitive peak reverse voltage (V_RRM), 2.0 A average forward current (I_F(AV)), and 75 A non-repetitive surge current (I_FSM). It delivers low forward voltage drop (0.65 V at 2.0 A, 125 °C) and ultra-low leakage (10 μA at 25 °C), enabling high-efficiency DC/DC converters and freewheeling diodes in industrial power supplies.

For engineers reviewing the SB2H90-E3/54 datasheet, SB2H90-E3/54 pinout, SB2H90-E3/54 application, or SB2H90-E3/54 equivalent, key selection criteria include its 175 °C maximum junction temperature, guardring-enhanced overvoltage protection, high dV/dt rating (10,000 V/μs), and RoHS-compliant matte tin-plated leads qualified to JESD 201 Class 1A whisker test.

Technical Context

This device uses high-barrier Schottky technology to achieve improved high-temperature performance versus conventional Schottkys, with stable VF and IR up to 175 °C junction temperature. Its single-diode configuration and DO-15 axial package support through-hole mounting in space-constrained mid-voltage power stages.

The guardring structure provides inherent overvoltage protection without external components, while the 14 °C/W junction-to-lead thermal resistance (R_θJL) enables efficient heat transfer to PCB copper pads-critical for sustained 2.0 A operation under ambient temperatures up to 125 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	90 V - supports input rails up to 72 V DC with 25 % safety margin in DC/DC front-end rectification
I_F(AV)	2.0 A - continuous conduction mode operation in 24–48 V industrial converters without derating below 100 °C ambient
V_F @ 2.0 A, 125 °C	0.65 V - reduces conduction loss to ≤1.3 W, minimizing thermal stress in sealed enclosures
I_R @ 25 °C	10 μA - ensures negligible standby power loss in polarity protection circuits
I_FSM	75 A - withstands inrush and transient surges in motor drive freewheeling paths
T_J max.	175 °C - allows operation in high-ambient environments such as automotive under-hood or industrial inverters
dV/dt	10,000 V/μs - prevents false triggering during fast-switching MOSFET gate-drive transitions

Pinout & Package

Package: DO-15 (DO-204AC), axial leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Cathode indicated by color band on body.

Pin/Terminal	Circuit Role	Design Meaning
Anode (lead without band)	Forward current entry point	Connected to lower-potential side of load or switch node in freewheeling path
Cathode (lead with color band)	Forward current exit / reverse blocking terminal	Connected to higher-potential rail; blocks up to 90 V reverse bias with <10 μA leakage at 25 °C

Key Features

Feature	Design Value
Guardring overvoltage protection	Enables reliable operation under repetitive 90 V transients without external snubbers or TVS devices
High-temperature Schottky barrier	Maintains <0.79 V forward drop at 25 °C and <0.65 V at 125 °C-reducing thermal runaway risk in sealed systems
Low leakage current	10 μA at 25 °C and 4.0 mA at 125 °C-minimizes standby power loss in battery-backed polarity protection
High dV/dt immunity	10,000 V/μs rating prevents spurious conduction during fast-switching SiC/GaN half-bridge transitions
RoHS-compliant matte tin plating	Meets J-STD-002 solderability and JESD 201 Class 1A whisker requirements-ensures long-term reliability in automated assembly

Applications

Industrial DC/DC Converters	Motor Drive Freewheeling
Use Scenario: Secondary-side synchronous rectification in isolated 24–48 V input DC/DC modules for PLC I/O power rails. IC Role / Device Role / Timing Role: High-efficiency unidirectional current path replacing higher-loss PN diodes to reduce conduction losses by ≥40 %. Use Value: 0.65 V V_F at 125 °C enables >92 % efficiency at full load while maintaining T_J < 150 °C on 5 mm × 5 mm copper pad.	Use Scenario: Inductive kickback clamping across brushed DC motor windings in factory automation actuators. IC Role / Device Role / Timing Role: Fast-recovery freewheeling path absorbing 75 A I_FSM surge energy during PWM turn-off. Use Value: Guardring structure prevents avalanche-induced failure during repeated 40 V inductive spikes at 20 kHz switching.
Polarity Protection	High-Frequency Inverters
Use Scenario: Reverse-input protection in 12–36 V embedded power supplies for IoT gateways and edge controllers. IC Role / Device Role / Timing Role: Low-leakage series-blocking diode ensuring <10 μA standby current when input is reversed. Use Value: 10 μA I_R at 25 °C extends battery life beyond 10 years in always-on backup power designs.	Use Scenario: Output rectification in 50–100 kHz resonant LLC inverters for LED drivers and HVAC fan controls. IC Role / Device Role / Timing Role: High-frequency unidirectional conduction with minimal capacitive charge injection (C_J < 100 pF). Use Value: 10,000 V/μs dV/dt rating prevents false turn-on during 100 ns rise-time gate signals in half-bridge topologies.

Industrial DC/DC Converters

Motor Drive Freewheeling

Use Scenario: Secondary-side synchronous rectification in isolated 24–48 V input DC/DC modules for PLC I/O power rails.

IC Role / Device Role / Timing Role: High-efficiency unidirectional current path replacing higher-loss PN diodes to reduce conduction losses by ≥40 %.

Use Value: 0.65 V V_F at 125 °C enables >92 % efficiency at full load while maintaining T_J < 150 °C on 5 mm × 5 mm copper pad.

Use Scenario: Inductive kickback clamping across brushed DC motor windings in factory automation actuators.

IC Role / Device Role / Timing Role: Fast-recovery freewheeling path absorbing 75 A I_FSM surge energy during PWM turn-off.

Use Value: Guardring structure prevents avalanche-induced failure during repeated 40 V inductive spikes at 20 kHz switching.

Polarity Protection

High-Frequency Inverters

Use Scenario: Reverse-input protection in 12–36 V embedded power supplies for IoT gateways and edge controllers.

IC Role / Device Role / Timing Role: Low-leakage series-blocking diode ensuring <10 μA standby current when input is reversed.

Use Value: 10 μA I_R at 25 °C extends battery life beyond 10 years in always-on backup power designs.

Use Scenario: Output rectification in 50–100 kHz resonant LLC inverters for LED drivers and HVAC fan controls.

IC Role / Device Role / Timing Role: High-frequency unidirectional conduction with minimal capacitive charge injection (C_J < 100 pF).

Use Value: 10,000 V/μs dV/dt rating prevents false turn-on during 100 ns rise-time gate signals in half-bridge topologies.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay SB2H100-E3/54	100 V V_RRM, identical I_F(AV), V_F, and package; 10 % higher reverse voltage rating	Suitable where system requires ≥90 V DC bus margin (e.g., 75 V nominal telecom supplies)	Select SB2H100-E3/54 only if design mandates 100 V blocking; SB2H90-E3/54 offers tighter V_F/I_R trade-off at 90 V
ON Semiconductor MBR2H90G	Same DO-15 package, 90 V V_RRM, but higher V_F (0.82 V @ 2 A, 25 °C) and higher I_R (25 μA @ 25 °C)	Acceptable where thermal budget allows +0.17 V higher conduction loss and leakage is non-critical	Choose SB2H90-E3/54 for thermally constrained or low-standby-power designs; MBR2H90G may be cost-optimized for less demanding applications

Compared with SB2H100-E3/54 and MBR2H90G, the SB2H90-E3/54 delivers the lowest forward voltage at elevated temperature and tightest leakage spec-making it optimal for high-efficiency, high-reliability 90 V-class rectification where thermal management is limited.

Availability

SB2H90-E3/54 is available at Aetrix Electronics and suitable for industrial DC/DC converters, motor drive freewheeling, and polarity protection applications requiring stable component supply, long-lifecycle assurance, and traceable RoHS-compliant sourcing.

Supply support for SB2H90-E3/54 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, thermal performance, and application-specific optimization.

The SB2H90-E3/54 belongs to Vishay's high-voltage Schottky rectifier product line, engineered for high-frequency, high-temperature power conversion in industrial, automotive, and telecom infrastructure where efficiency and ruggedness are critical.

FAQ

What is the maximum junction temperature rating for SB2H90-E3/54?

The SB2H90-E3/54 has a maximum operating junction temperature (T_J) of 175 °C, verified per Vishay Document Number 88718. This rating enables reliable operation in high-ambient environments such as enclosed industrial power supplies or under-hood automotive modules. Thermal design must ensure that actual T_J remains within this limit using the specified R_θJA = 45 °C/W and R_θJL = 14 °C/W values under defined PCB copper pad conditions.

Does SB2H90-E3/54 have a guardring structure, and what does it do?

Yes, the SB2H90-E3/54 incorporates a guardring for overvoltage protection, as confirmed in the "Features" section of Vishay Document Number 88718. This integrated guardring enhances edge termination robustness, preventing premature avalanche breakdown during repetitive voltage transients. It eliminates the need for external snubber networks in applications like motor freewheeling or inverter output rectification where 90 V-rated blocking must survive fast-rising spikes.

What is the forward voltage drop of SB2H90-E3/54 at 2.0 A and 125 °C?

The SB2H90-E3/54 exhibits a maximum instantaneous forward voltage (V_F) of 0.65 V at I_F = 2.0 A and T_J = 125 °C, per the Electrical Characteristics table in Vishay Document Number 88718. This low, temperature-stable V_F directly reduces conduction losses to ≤1.3 W-critical for maintaining efficiency and thermal headroom in compact, sealed power modules where forced cooling is unavailable.

Is SB2H90-E3/54 RoHS-compliant and qualified for automated assembly?

Yes, the SB2H90-E3/54 is RoHS-compliant (E3 suffix) and features matte tin-plated leads qualified to J-STD-002 for solderability and JESD 201 Class 1A for whisker resistance. These qualifications-documented in Vishay Document Number 88718-ensure compatibility with standard reflow and wave-solder processes, including 275 °C solder dip for 10 seconds per JESD 22-B106, supporting high-yield automated manufacturing.

How does SB2H90-E3/54 differ from SB2H100-E3/54 in practical design use?

The SB2H90-E3/54 and SB2H100-E3/54 share identical package, thermal specs, forward characteristics, and leakage behavior-but differ in maximum repetitive peak reverse voltage: 90 V vs. 100 V. In practice, SB2H90-E3/54 is preferred for 72 V nominal bus systems where tighter V_F/I_R optimization matters, while SB2H100-E3/54 suits designs needing extra margin against 100 V transients. Both are electrically interchangeable only if the 10 V difference falls within system safety margins.

SB2H90-E3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: DO-204AC, DO-15, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 90 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 790 mV @ 2 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 10 µA @ 90 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

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

SB2H90-E3/54 FAQ

1.How can I place an order for SB2H90-E3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for SB2H90-E3/54 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 SB2H90-E3/54 reliable?

The price and inventory of SB2H90-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SB2H90-E3/54 is usually 5 days.

3.What payment methods are accepted for SB2H90-E3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SB2H90-E3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SB2H90-E3/54?

SB2H90-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SB2H90-E3/54 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 SB2H90-E3/54?

For technical support, including SB2H90-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SB2H90-E3/54 requirements.

6.How does Aetrix verify that SB2H90-E3/54 is sourced from the original manufacturer or authorized distributors?

All SB2H90-E3/54 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 SB2H90-E3/54 meets industry standards.

7.What is the process for return or replacement of SB2H90-E3/54?

All SB2H90-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SB2H90-E3/54, 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 SB2H90-E3/54 part is unused and in its original packaging.

Return procedure for SB2H90-E3/54:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-11 Comparator Circuit: Voltage Thresholds, Op-Amp Differences, LM393 and Practical Design

Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.

2026-09-10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications

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…

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

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, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …