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

Taiwan Semiconductor Corporation ESH2C

Name: ESH2C
Brand: Taiwan Semiconductor Corporation
SKU: ESH2C
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ESH2C

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: ESH2C.pdf

Description:: DIODE GEN PURP 150V 2A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:6,000

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Product details

Overview

ESH2C from Taiwan Semiconductor is a 2 A, 150 V ultra-fast surface-mount rectifier diode in DO-214AA (SMB) package, featuring 20 ns reverse recovery time, 0.9 V max forward voltage at 2 A, and 2 µA max reverse leakage at 25°C. It serves as a primary output rectifier in high-frequency switching power supplies requiring low conduction loss and fast transient response.

For engineers reviewing the ESH2C datasheet, ESH2C pinout, ESH2C application, or ESH2C equivalent, key selection criteria include repetitive peak reverse voltage (150 V), thermal resistance (R_θJA = 75 °C/W), junction temperature range (–55 to +175 °C), and compatibility with automated SMT placement on SMB footprint layouts.

Technical Context

The ESH2C employs a glass-passivated silicon junction optimized for ultra-fast recovery (trr ≤ 20 ns), enabling efficient operation in 100–500 kHz SMPS topologies. Its single-die configuration and low-profile DO-214AA package support high-density board layouts while maintaining robust surge capability (IFSM = 60 A, 8.3 ms sine).

Thermal performance is defined by R_θJL = 20 °C/W and R_θJA = 75 °C/W under standard JEDEC conditions. Reverse leakage remains ≤50 µA at 125°C, supporting stable operation in thermally constrained lighting and adapter designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - Maximum non-repetitive reverse voltage the device blocks without breakdown; sets upper limit for output rectification in 12–48 V DC-DC converters.
I_F	2 A - Continuous average forward current rating; defines steady-state power delivery capability in adapter secondary-side rectification.
t_rr	20 ns - Measured reverse recovery time under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables minimal switching loss in high-frequency flyback and LLC resonant converters.
V_F	≤0.9 V @ 2 A, 25°C - Forward voltage drop determines conduction loss and thermal load; directly impacts efficiency and heatsink sizing in compact adapters.
R_θJA	75 °C/W - Junction-to-ambient thermal resistance on standard FR-4 PCB; used to calculate maximum ambient temperature for safe 2 A operation without forced airflow.
I_R	≤2 µA @ 150 V, 25°C - Reverse leakage current; critical for low-power standby modes and high-impedance feedback paths in isolated SMPS.

Pinout & Package

Package: DO-214AA (SMB), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band. Matte tin-plated leads, RoHS and halogen-free compliant.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to transformer secondary or switch node; must withstand surge current up to 60 A during line transients.
Cathode (Lead 2)	Forward current exit / reverse voltage reference	Connected to output capacitor positive rail; cathode band orientation ensures correct polarity during automated placement.

Key Features

Feature	Design Value
Glass passivated junction	Enables stable 150 V blocking capability and long-term reliability under humidity and thermal cycling per J-STD-020 MSL Level 1.
Ultra-fast trr ≤ 20 ns	Reduces switching losses in >200 kHz converters, improving full-load efficiency by ~0.5–1.2% compared to standard fast recovery diodes.
DO-214AA (SMB) package	Standardized footprint compatible with JEDEC MS-013AC; supports 3,000-unit tape-and-reel handling and reflow soldering per IPC-J-STD-020.
Low profile height (≤2.6 mm)	Enables use in space-constrained AC/DC adapters and LED drivers where vertical clearance is limited to <3 mm.

Applications

Switching Mode Power Supply (SMPS)	AC-DC Adapters
Use Scenario: Primary or secondary-side rectification in 30–100 W offline flyback converters operating at 65–130 kHz. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary AC to regulated DC; timing role defined by trr-driven switching loss minimization. Use Value: 20 ns t_rr reduces turn-off tail current, lowering EMI generation and improving efficiency over standard FR107-class diodes.	Use Scenario: Secondary-side synchronous rectification replacement in universal-input 5–20 V, 2–5 A wall adapters. IC Role / Device Role / Timing Role: Discrete rectifier providing cost-effective, layout-simple alternative to active SR controllers in low-cost adapters. Use Value: 0.9 V V_F limits conduction loss to <1.8 W at 2 A, enabling thermally viable operation without heatsinking in sealed plastic enclosures.
LED Lighting Drivers	DC-DC Converters
Use Scenario: Output rectification in constant-current buck-boost LED drivers powering 12–24 V LED strings in commercial downlights. IC Role / Device Role / Timing Role: High-reliability rectifier sustaining continuous 2 A load with minimal thermal drift across –40 to +85°C ambient. Use Value: 175°C T_JMAX and ≤50 µA I_R at 125°C ensure stable regulation and low standby power in thermally demanding enclosed fixtures.	Use Scenario: Input or output rectification in isolated 12 V–48 V industrial DC-DC modules with 200 kHz+ switching frequency. IC Role / Device Role / Timing Role: Fast-recovery rectifier minimizing reverse recovery charge (Q_rr) in half-bridge and forward converter secondary windings. Use Value: Low C_J (25 pF) and fast t_rr reduce capacitive coupling noise and improve transient response during load steps.

Switching Mode Power Supply (SMPS)

AC-DC Adapters

Use Scenario: Primary or secondary-side rectification in 30–100 W offline flyback converters operating at 65–130 kHz.

IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary AC to regulated DC; timing role defined by trr-driven switching loss minimization.

Use Value: 20 ns t_rr reduces turn-off tail current, lowering EMI generation and improving efficiency over standard FR107-class diodes.

Use Scenario: Secondary-side synchronous rectification replacement in universal-input 5–20 V, 2–5 A wall adapters.

IC Role / Device Role / Timing Role: Discrete rectifier providing cost-effective, layout-simple alternative to active SR controllers in low-cost adapters.

Use Value: 0.9 V V_F limits conduction loss to <1.8 W at 2 A, enabling thermally viable operation without heatsinking in sealed plastic enclosures.

LED Lighting Drivers

DC-DC Converters

Use Scenario: Output rectification in constant-current buck-boost LED drivers powering 12–24 V LED strings in commercial downlights.

IC Role / Device Role / Timing Role: High-reliability rectifier sustaining continuous 2 A load with minimal thermal drift across –40 to +85°C ambient.

Use Value: 175°C T_JMAX and ≤50 µA I_R at 125°C ensure stable regulation and low standby power in thermally demanding enclosed fixtures.

Use Scenario: Input or output rectification in isolated 12 V–48 V industrial DC-DC modules with 200 kHz+ switching frequency.

IC Role / Device Role / Timing Role: Fast-recovery rectifier minimizing reverse recovery charge (Q_rr) in half-bridge and forward converter secondary windings.

Use Value: Low C_J (25 pF) and fast t_rr reduce capacitive coupling noise and improve transient response during load steps.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R015	V_RRM = 150 V, t_rr = 25 ns, V_F = 0.95 V @ 2 A - slightly slower recovery and higher forward drop.	Valid for same SMPS and adapter use cases but may require marginally larger heatsinking at full load.	Select when STMicroelectronics supply chain alignment or dual-sourcing is required; verify layout compatibility with SMB footprint.
ES1D	V_RRM = 200 V, t_rr = 35 ns, I_F = 1 A - higher voltage rating but lower current and slower recovery than ESH2C.	Suitable for 200 V systems with <1 A average current; not recommended for 2 A continuous loads due to thermal derating.	Choose only if 200 V blocking is mandatory and peak current stays below 1.2 A; otherwise ESH2C offers superior 2 A/150 V balance.

Compared with STTH2R015 and ES1D, the ESH2C delivers optimal trade-off between 2 A current handling, 150 V blocking, and 20 ns recovery-making it preferred for compact, high-efficiency 30–65 W adapters and lighting drivers where thermal headroom and switching loss are critical.

Availability

ESH2C is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and LED lighting drivers requiring stable component supply and consistent SMB package sourcing.

Supply support for ESH2C 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 devices, and MOSFETs since 1979.

The ESH2C belongs to TSC's ESH2x ultra-fast rectifier family, engineered specifically for high-frequency, high-efficiency AC-DC and DC-DC conversion in cost-sensitive consumer and industrial power applications.

FAQ

What is the maximum junction temperature rating for the ESH2C?

The ESH2C has a maximum junction temperature (T_JMAX) of +175°C, allowing reliable operation in thermally demanding environments such as enclosed LED drivers or high-density power adapters. This rating supports extended lifetime under continuous 2 A load when PCB copper area and airflow meet thermal design guidelines specified in the ESH2C datasheet.

Does the ESH2C have a halogen-free construction?

Yes, the ESH2C is halogen-free in accordance with IEC 61249-2-21 and RoHS compliant. The molding compound and lead finish meet environmental standards for consumer and industrial electronics, with matte tin-plated leads certified solderable per J-STD-002.

What is the reverse recovery time (t_rr) specification for the ESH2C?

The ESH2C has a maximum reverse recovery time (t_rr) of 20 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This ultra-fast recovery enables low-loss operation in high-frequency switching circuits such as 200–500 kHz flyback and resonant converters where switching loss dominates efficiency.

Can the ESH2C replace the ESH2B or ESH2D in existing designs?

The ESH2C is not a direct drop-in replacement for ESH2B (100 V) or ESH2D (200 V) due to its specific 150 V V_RRM rating. Substitution requires verification that system peak reverse voltage remains within 150 V; exceeding this risks avalanche failure. Layout and thermal design remain identical across the ESH2x series.

What packaging format is available for the ESH2C?

The ESH2C is supplied in DO-214AA (SMB) package on 3,000-unit tape-and-reel format, optimized for high-speed pick-and-place assembly. The package features a cathode band marking, matte tin leads, and complies with J-STD-020 moisture sensitivity level 1 for unlimited floor life at standard humidity conditions.

ESH2C Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 150 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 2 A

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

Reverse Recovery Time (trr):: 20 ns

Current - Reverse Leakage @ Vr:: 2 µA @ 150 V

Capacitance @ Vr, F:: 25pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMB)

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

ESH2C FAQ

1.How can I place an order for ESH2C through Aetrix?

Please submit a Request for Quotation (RFQ) for ESH2C 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 ESH2C reliable?

The price and inventory of ESH2C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH2C is usually 5 days.

3.What payment methods are accepted for ESH2C?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH2C transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ESH2C?

ESH2C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ESH2C 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 ESH2C?

For technical support, including ESH2C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH2C requirements.

6.How does Aetrix verify that ESH2C is sourced from the original manufacturer or authorized distributors?

All ESH2C 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 ESH2C meets industry standards.

7.What is the process for return or replacement of ESH2C?

All ESH2C units undergo pre-shipment inspection (PSI). If there is an issue with ESH2C, 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 ESH2C part is unused and in its original packaging.

Return procedure for ESH2C:

1.Submit a request within 90 days.

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

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