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

Taiwan Semiconductor Corporation ES2BAL

Name: ES2BAL
Brand: Taiwan Semiconductor Corporation
SKU: ES2BAL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES2BAL

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-221AC, SMA Flat Leads

Datasheet:: ES2BAL.pdf

Description:: DIODE GEN PURP 100V 2A THIN SMA

Quantity:: RFQ Add To RFQ list

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Inventory:13,708

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Product details

Overview

ES2BAL from Taiwan Semiconductor is a 2A, 100V super fast surface-mount rectifier in a Thin SMA package, featuring 35ns reverse recovery time, 0.88V forward voltage at 2A/25°C, and 50A surge current capability. It serves as a freewheeling or output rectifier in high-frequency DC-DC converters requiring low conduction loss and compact layout.

For engineers reviewing the ES2BAL datasheet, ES2BAL pinout, ES2BAL application, or ES2BAL equivalent, key selection criteria include its 100V V_RRM, 24°C/W junction-to-lead thermal resistance, 28pF junction capacitance at 1MHz/4V, and compatibility with automated SMT placement on standard PCB pads.

Technical Context

The ES2BAL uses a single-die, glass-passivated silicon PN junction optimized for super-fast switching (t_rr ≤ 35ns), enabling efficient operation in 100–500kHz switching power supplies. Its low-profile Thin SMA package supports high-density board layouts while maintaining thermal performance via direct lead heat conduction (R_θJL = 24°C/W).

Electrical behavior is characterized by temperature-dependent forward voltage (0.74V at 2A/125°C) and low leakage (≤1µA at 25°C, ≤25µA at 125°C), ensuring stable performance across industrial temperature ranges (−55°C to +150°C).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC-DC output stage
I_F	2 A - Continuous forward current rating; determines steady-state power dissipation and heatsink requirements
I_FSM	50 A - Non-repetitive surge current (8.3ms); supports inrush and fault transient handling
t_rr	35 ns - Reverse recovery time; enables high-frequency switching with minimal switching loss
V_F	0.88 V @ 2A/25°C - Forward voltage drop; directly impacts conduction loss and efficiency at full load
C_J	28 pF @ 1MHz/4V - Junction capacitance; influences high-frequency noise and EMI filter design
R_θJL	24 °C/W - Junction-to-lead thermal resistance; enables accurate thermal modeling using PCB copper pad as heatsink

Pinout & Package

Package: Thin SMA - Surface-mount, low-profile (max height 2.2mm), matte tin-plated leads, polarity indicated by cathode band, moisture sensitivity level 1 per J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., switch node or ground return) in freewheeling path
Cathode	Forward current exit point	Connected to higher-potential rail (e.g., output capacitor positive terminal) and marked with band

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in IPC Class 2 environments
Super fast recovery (t_rr ≤ 35ns)	Reduces switching losses in 200–500kHz SMPS designs, improving efficiency over standard fast rectifiers
Thin SMA package	Enables 5mm × 5mm Cu pad thermal management per JEDEC standards; compatible with standard reflow profiles
RoHS & halogen-free	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU; supports green manufacturing compliance

Applications

DC-DC Converter Output Rectification	Switching Mode Inverter Freewheeling
Use Scenario: Secondary-side synchronous rectification replacement in isolated 48V-to-12V buck-derived converters. IC Role / Device Role / Timing Role: Uncontrolled unidirectional current path during low-side switch off-time; conducts flyback energy. Use Value: 0.88V V_F minimizes conduction loss at 2A continuous load, improving overall converter efficiency by ~0.8% vs. standard FR107.	Use Scenario: Freewheeling path across inductive motor windings in 3-phase BLDC inverter half-bridges. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path when PWM gate drive turns off high-side MOSFET. Use Value: 35ns t_rr prevents shoot-through risk during dead-time transitions, supporting >100kHz PWM without added snubbers.
AC-DC Adapter Secondary Rectification	Industrial Power Supply Hold-up Diode
Use Scenario: Output rectifier in 24W offline flyback adapter powering IoT gateways. IC Role / Device Role / Timing Role: Converts transformer secondary AC to regulated DC; operates continuously at 1.5A average current. Use Value: 28pF C_J reduces high-frequency ringing and EMI emissions, easing EN55032 Class B compliance.	Use Scenario: Hold-up diode isolating bulk capacitor from input during AC brownout events in PLC power modules. IC Role / Device Role / Timing Role: Blocks reverse current flow from capacitor to rectifier bridge during line dropout. Use Value: 1µA max I_R at 25°C ensures <1mW standby leakage, preserving >10ms hold-up time under 20% line sag.

DC-DC Converter Output Rectification

Switching Mode Inverter Freewheeling

Use Scenario: Secondary-side synchronous rectification replacement in isolated 48V-to-12V buck-derived converters.

IC Role / Device Role / Timing Role: Uncontrolled unidirectional current path during low-side switch off-time; conducts flyback energy.

Use Value: 0.88V V_F minimizes conduction loss at 2A continuous load, improving overall converter efficiency by ~0.8% vs. standard FR107.

Use Scenario: Freewheeling path across inductive motor windings in 3-phase BLDC inverter half-bridges.

IC Role / Device Role / Timing Role: Provides low-loss current recirculation path when PWM gate drive turns off high-side MOSFET.

Use Value: 35ns t_rr prevents shoot-through risk during dead-time transitions, supporting >100kHz PWM without added snubbers.

AC-DC Adapter Secondary Rectification

Industrial Power Supply Hold-up Diode

Use Scenario: Output rectifier in 24W offline flyback adapter powering IoT gateways.

IC Role / Device Role / Timing Role: Converts transformer secondary AC to regulated DC; operates continuously at 1.5A average current.

Use Value: 28pF C_J reduces high-frequency ringing and EMI emissions, easing EN55032 Class B compliance.

Use Scenario: Hold-up diode isolating bulk capacitor from input during AC brownout events in PLC power modules.

IC Role / Device Role / Timing Role: Blocks reverse current flow from capacitor to rectifier bridge during line dropout.

Use Value: 1µA max I_R at 25°C ensures <1mW standby leakage, preserving >10ms hold-up time under 20% line sag.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R01	Same 2A/100V rating; t_rr = 30ns, V_F = 0.92V @ 2A/25°C; TO-220AC package (larger footprint, higher R_θJA)	Requires heatsink for >1.2A continuous use; unsuitable for ultra-thin or high-density layouts	Select when higher surge robustness (I_FSM = 60A) outweighs size constraints
MBR2100	Schottky construction; V_F = 0.82V @ 2A/25°C but V_RRM = 100V and I_R = 500µA @ 125°C (10× higher leakage)	Not suitable for high-temp (>85°C) freewheeling where leakage-induced heating matters	Select only in ambient <70°C applications prioritizing lowest V_F over leakage stability

Compared with STTH2R01 and MBR2100, the ES2BAL uniquely balances ultra-low profile (Thin SMA), industry-leading leakage control (≤1µA @ 25°C), and verified 35ns t_rr - making it optimal for space-constrained, thermally managed, and high-reliability 100V rectification tasks.

Availability

ES2BAL is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter freewheeling, and AC-DC adapter secondary rectification requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.

Supply support for ES2BAL 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.

The ES2BAL belongs to TSC's ES2xAL super fast rectifier family, engineered specifically for high-frequency switching power supplies where low t_rr, tight V_F distribution, and SMT manufacturability are critical.

FAQ

What is the maximum junction temperature rating for the ES2BAL?

The ES2BAL has a maximum junction temperature (T_JMAX) of +150°C, validated across its full operating range (−55°C to +150°C). This rating allows reliable operation in industrial environments where ambient temperatures reach 85°C and power dissipation generates additional junction rise. Thermal design must respect the 24°C/W junction-to-lead resistance using a 5mm × 5mm copper pad per TSC's recommended layout to stay within this limit. The ES2BAL maintains specified electrical parameters up to T_J = 150°C.

Does the ES2BAL have a cathode band marking, and how is polarity identified?

Yes, the ES2BAL uses a visible cathode band on the body to indicate polarity - the banded end is the cathode terminal. This marking complies with JEDEC standards and aligns with the Thin SMA package mechanical drawing. During PCB layout, the cathode must connect to the higher-potential node (e.g., output rail), and the anode to the lower-potential node (e.g., switch node or ground return). The ES2BAL's polarity identification is consistent across all units and verified per J-STD-020 moisture sensitivity level 1 handling.

What is the reverse recovery time (t_rr) specification for the ES2BAL, and under what test conditions?

The ES2BAL has a maximum reverse recovery time (t_rr) of 35ns, measured under the condition: I_F = 0.5A, I_R = 1.0A, I_rr = 0.25A. This parameter is guaranteed across production lots and reflects the device's super fast switching capability. It is critical for minimizing switching losses in high-frequency topologies like active clamp flyback or phase-shifted full-bridge. The ES2BAL's t_rr remains stable from −55°C to +125°C, as confirmed in TSC's characterization curves.

Is the ES2BAL suitable for use in automotive applications?

The ES2BAL is not qualified to AEC-Q101 or automotive-grade reliability standards and is not recommended for safety-critical automotive systems such as engine control or ADAS. However, it may be used in non-safety automotive auxiliary circuits (e.g., infotainment power rails or cabin lighting) where ambient temperature stays below 85°C and no ASIL-level compliance is required. For automotive-grade alternatives, consult TSC's AEC-Q101-certified rectifier portfolio - the ES2BAL itself is intended for industrial, computing, and consumer power applications.

What is the junction capacitance (C_J) of the ES2BAL, and why does it matter in circuit design?

The ES2BAL exhibits a typical junction capacitance (C_J) of 28pF at 1MHz and 4.0V reverse bias. This value directly affects high-frequency switching noise, EMI filter sizing, and resonant behavior in LLC or ZVS topologies. Lower C_J reduces capacitive coupling between primary and secondary sides in isolated converters and eases compliance with conducted EMI limits (e.g., CISPR-32). The ES2BAL's 28pF is 20–30% lower than legacy FR series rectifiers, contributing to cleaner waveforms and reduced snubber losses.

ES2BAL Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-221AC, SMA Flat Leads

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:: 950 mV @ 2 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 1 µA @ 100 V

Capacitance @ Vr, F:: 18pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: Thin SMA

Operating Temperature - Junction:: -55°C ~ 150°C

ES2BAL FAQ

1.How can I place an order for ES2BAL through Aetrix?

Please submit a Request for Quotation (RFQ) for ES2BAL 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 ES2BAL reliable?

The price and inventory of ES2BAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2BAL is usually 5 days.

3.What payment methods are accepted for ES2BAL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2BAL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES2BAL?

ES2BAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES2BAL 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 ES2BAL?

For technical support, including ES2BAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2BAL requirements.

6.How does Aetrix verify that ES2BAL is sourced from the original manufacturer or authorized distributors?

All ES2BAL 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 ES2BAL meets industry standards.

7.What is the process for return or replacement of ES2BAL?

All ES2BAL units undergo pre-shipment inspection (PSI). If there is an issue with ES2BAL, 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 ES2BAL part is unused and in its original packaging.

Return procedure for ES2BAL:

1.Submit a request within 90 days.

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

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