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

Vishay General Semiconductor - Diodes Division SB230-E3/54

Name: SB230-E3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: SB230-E3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SB230-E3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Single Diodes

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

Datasheet:: SB230-E3/54.pdf

Description:: DIODE SCHOTTKY 30V 2A DO204AC

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Product details

Overview

SB230-E3/54 from Vishay General Semiconductor is a Schottky barrier plastic rectifier in DO-15 package, rated for 30 V repetitive peak reverse voltage (V_RRM), 2.0 A average forward current (I_F(AV)), and 0.68 V forward voltage drop at 2.0 A. It delivers high-frequency rectification with low conduction loss in DC/DC converters and freewheeling paths.

For engineers reviewing the SB230-E3/54 datasheet, SB230-E3/54 pinout, SB230-E3/54 application, or SB230-E3/54 equivalent, key selection criteria include its 30 V blocking capability, 60 A surge rating, 125 °C junction temperature limit, guardring-enhanced overvoltage protection, and RoHS-compliant matte tin-plated leads.

Technical Context

This single-diode Schottky rectifier uses a planar construction with guardring to suppress edge breakdown and improve ruggedness under transient overvoltage. Its low VF and fast recovery enable efficient operation in high-frequency switching topologies without snubber circuits.

The device operates within -65 °C to +125 °C junction range and exhibits 170 pF typical junction capacitance at rated VR, supporting stable performance in 100 kHz–1 MHz DC/DC stages. Thermal resistance is 45 °C/W (junction-to-ambient) and 14 °C/W (junction-to-lead) under standard PCB mounting conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - Maximum repetitive reverse blocking voltage; defines safe operating ceiling in polarity protection and flyback clamp circuits.
I_F(AV)	2.0 A - Average forward current at 9.5 mm lead length; sets continuous power handling in 12 V/24 V DC/DC outputs.
V_F @ 2.0 A	0.68 V - Forward voltage drop; directly determines conduction loss (1.36 W at 2 A) and thermal load in freewheeling diodes.
I_FSM	60 A - Non-repetitive surge current (8.3 ms half-sine); supports robust startup and fault-current tolerance in inverters.
T_J max.	125 °C - Maximum junction temperature; constrains thermal design margin when mounted on compact PCBs without heatsinking.
C_J	170 pF - Junction capacitance at rated VR; impacts high-frequency switching noise and EMI in >500 kHz converters.
R_θJL	14 °C/W - Junction-to-lead thermal resistance; enables accurate thermal modeling of solder-joint temperature rise under load.

Pinout & Package

Package: DO-15 (DO-204AC), axial-leaded plastic case with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Meets UL 94 V-0 flammability rating.

Pin/Terminal	Circuit Role	Design Meaning
Anode (A)	Forward current entry point	Connected to switch node or inductor output in buck/flyback freewheeling path; polarity-sensitive for correct current flow.
Cathode (K)	Forward current exit point	Connected to ground or output rail; cathode marking band identifies terminal orientation during manual placement or AOI inspection.

Key Features

Feature	Design Value
Guardring structure	Suppresses edge avalanche and improves V_RRM consistency across manufacturing lots; enhances reliability in unclamped inductive switching.
Low forward voltage (0.68 V @ 2 A)	Reduces conduction loss by ~30 % vs. comparable silicon rectifiers; lowers thermal stress in space-constrained DC/DC modules.
Extremely fast switching	No minority-carrier storage delay; eliminates reverse recovery charge (Q_rr ≈ 0), preventing shoot-through in synchronous rectifier designs.
High surge capability (60 A)	Withstands inrush and fault currents in automotive 12 V systems and industrial 24 V power supplies without degradation.
RoHS-compliant E3 suffix	Meets JESD 201 Class 1A whisker test; ensures long-term solder joint integrity in high-vibration environments like transportation electronics.

Applications

DC/DC Converter Output Rectification	Freewheeling Diode in Buck Converters
Use Scenario: Used as secondary-side rectifier in isolated 5–12 V DC/DC modules delivering up to 2 A continuous output. IC Role / Device Role / Timing Role: Schottky rectifier conducting during transformer secondary voltage polarity phase; replaces slower silicon diodes to minimize losses. Use Value: 0.68 V V_F reduces power loss by 1.36 W at full load versus 1.1 V silicon alternatives, improving efficiency by ≥2 % at 2 A.	Use Scenario: Placed across inductor in non-synchronous buck regulator powering FPGA core rails. IC Role / Device Role / Timing Role: Provides low-loss current path during high-side switch off-time; critical for maintaining continuous inductor current. Use Value: Near-zero Q_rr prevents cross-conduction losses and enables stable operation up to 1 MHz switching frequency.
Polarity Protection in 12 V Systems	Reverse Battery Protection in Automotive ECUs
Use Scenario: Series-connected at input of industrial sensor node powered from 12 V supply with potential miswiring risk. IC Role / Device Role / Timing Role: Blocks reverse polarity while conducting forward current with minimal dropout; placed before LDO or DC/DC input. Use Value: 30 V V_RRM provides 2× safety margin over nominal 12 V rail; 0.68 V drop preserves >94 % input voltage under full load.	Use Scenario: Installed inline between vehicle battery and ECU main power input to prevent damage from accidental reverse connection. IC Role / Device Role / Timing Role: Unidirectional blocking element activated only during reverse polarity events; remains fully conductive during normal operation. Use Value: Guardring design withstands 60 A surge transients per ISO 7637-2 Pulse 4, ensuring survivability in harsh automotive environments.

DC/DC Converter Output Rectification

Freewheeling Diode in Buck Converters

Use Scenario: Used as secondary-side rectifier in isolated 5–12 V DC/DC modules delivering up to 2 A continuous output.

IC Role / Device Role / Timing Role: Schottky rectifier conducting during transformer secondary voltage polarity phase; replaces slower silicon diodes to minimize losses.

Use Value: 0.68 V V_F reduces power loss by 1.36 W at full load versus 1.1 V silicon alternatives, improving efficiency by ≥2 % at 2 A.

Use Scenario: Placed across inductor in non-synchronous buck regulator powering FPGA core rails.

IC Role / Device Role / Timing Role: Provides low-loss current path during high-side switch off-time; critical for maintaining continuous inductor current.

Use Value: Near-zero Q_rr prevents cross-conduction losses and enables stable operation up to 1 MHz switching frequency.

Polarity Protection in 12 V Systems

Reverse Battery Protection in Automotive ECUs

Use Scenario: Series-connected at input of industrial sensor node powered from 12 V supply with potential miswiring risk.

IC Role / Device Role / Timing Role: Blocks reverse polarity while conducting forward current with minimal dropout; placed before LDO or DC/DC input.

Use Value: 30 V V_RRM provides 2× safety margin over nominal 12 V rail; 0.68 V drop preserves >94 % input voltage under full load.

Use Scenario: Installed inline between vehicle battery and ECU main power input to prevent damage from accidental reverse connection.

IC Role / Device Role / Timing Role: Unidirectional blocking element activated only during reverse polarity events; remains fully conductive during normal operation.

Use Value: Guardring design withstands 60 A surge transients per ISO 7637-2 Pulse 4, ensuring survivability in harsh automotive environments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SB230-E3/73	Same electrical specs; differs only in packaging-2000-piece ammo pack vs. 4000-piece 13" tape-and-reel (E3/54).	Preferred for low-volume prototyping or small-batch assembly where reel changeover is undesirable.	Select E3/73 when production volume is <500 units/month or when manual placement dominates SMT process.
SS23-E3/57T	Same DO-15 package and 30 V/2 A rating, but higher V_F (0.75 V @ 2 A) and lower I_FSM (50 A); no guardring.	Suitable for cost-sensitive consumer applications where surge immunity and edge ruggedness are secondary.	Choose SS23-E3/57T only if BOM cost reduction outweighs 70 mV higher conduction loss and reduced transient robustness.

Compared with SB230-E3/54, SB230-E3/73 offers identical performance in a different logistics format, while SS23-E3/57T trades guardring protection and surge margin for lower unit cost-making SB230-E3/54 optimal for industrial and automotive designs requiring proven ruggedness.

Availability

SB230-E3/54 is available at Aetrix Electronics and suitable for DC/DC converter output rectification, freewheeling diode applications, and polarity protection circuits requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing traceability.

Supply support for SB230-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, ruggedness, and application-specific optimization.

The SB230-E3/54 belongs to Vishay's SBx20–SBx60 Schottky rectifier family, engineered for high-efficiency, high-frequency power conversion in automotive, industrial, and computing power supplies.

FAQ

What is the maximum junction temperature rating for SB230-E3/54?

The SB230-E3/54 has a maximum junction temperature (T_J) of +125 °C. This rating applies across its full operating range and is validated per JEDEC standards. Exceeding this limit risks irreversible degradation of the Schottky junction. Derating curves in the Vishay datasheet (Doc. #88717) show that sustained operation above 100 °C requires careful thermal management-especially when delivering 2.0 A in enclosed or still-air environments. The SB230-E3/54 must be mounted with adequate copper pour and lead length per figure 1 to maintain T_J ≤ 125 °C.

Does SB230-E3/54 have a guardring, and why does it matter?

Yes, the SB230-E3/54 incorporates a guardring structure explicitly stated in its Vishay datasheet (Document Number 88717). This feature mitigates edge breakdown under high dv/dt or transient overvoltage, improving reliability in inductive switching circuits such as buck converters and motor drivers. Without the guardring, localized electric field crowding at the die periphery could cause premature avalanche and parametric shift. The guardring ensures consistent 30 V V_RRM performance across temperature and lifetime, making SB230-E3/54 more robust than non-guardring Schottky alternatives in demanding applications.

What is the forward voltage drop of SB230-E3/54 at 2.0 A and 25 °C?

The SB230-E3/54 has a maximum instantaneous forward voltage (V_F) of 0.68 V at 2.0 A and 25 °C, as specified in the Electrical Characteristics table of Vishay Document #88717. This value is measured under pulsed conditions (300 μs, 1 % duty cycle) to avoid self-heating effects. In continuous DC operation, V_F rises slightly with junction temperature-reaching ~0.72 V at 100 °C. This low V_F directly reduces conduction loss and thermal load compared to silicon rectifiers, supporting higher efficiency in compact power designs.

Can SB230-E3/54 replace SB220-E3/54 in a 20 V design?

No-SB230-E3/54 is not a direct replacement for SB220-E3/54 in a 20 V design if V_RRM margin is critical. While both share identical package, current rating, and thermal specs, SB220-E3/54 is rated for 20 V V_RRM, whereas SB230-E3/54 is rated for 30 V. Using SB230-E3/54 in place of SB220-E3/54 introduces unnecessary voltage overhead and may affect layout parasitics due to differing junction capacitance (170 pF vs. lower for SB220). For strict 20 V systems, SB220-E3/54 remains the appropriate choice; SB230-E3/54 should only be substituted where 30 V blocking is required or verified compatible.

Is SB230-E3/54 suitable for automotive applications?

Yes, SB230-E3/54 is widely used in automotive applications including reverse battery protection, body control module power inputs, and infotainment DC/DC stages. Its 30 V V_RRM, 60 A I_FSM, guardring-enhanced ruggedness, and compliance with JESD 201 Class 1A whisker testing meet key requirements for under-hood and cabin electronics. However, it is not AEC-Q101 qualified-so for safety-critical or engine-compartment applications requiring formal qualification, designers should verify system-level validation per ISO 16750 and consult Vishay's automotive-grade alternatives such as the VS-2EYH03-M3.

SB230-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):: 30 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 500 mV @ 2 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 30 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

Operating Temperature - Junction:: -65°C ~ 125°C

SB230-E3/54 FAQ

1.How can I place an order for SB230-E3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for SB230-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 SB230-E3/54 reliable?

The price and inventory of SB230-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 SB230-E3/54 is usually 5 days.

3.What payment methods are accepted for SB230-E3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SB230-E3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SB230-E3/54?

SB230-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SB230-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 SB230-E3/54?

For technical support, including SB230-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SB230-E3/54 requirements.

6.How does Aetrix verify that SB230-E3/54 is sourced from the original manufacturer or authorized distributors?

All SB230-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 SB230-E3/54 meets industry standards.

7.What is the process for return or replacement of SB230-E3/54?

All SB230-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SB230-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 SB230-E3/54 part is unused and in its original packaging.

Return procedure for SB230-E3/54:

1.Submit a request within 90 days.

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

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