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

Taiwan Semiconductor Corporation HS2MAF-T

Name: HS2MAF-T
Brand: Taiwan Semiconductor Corporation
SKU: HS2MAF-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HS2MAF-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-221AC, SMA Flat Leads

Datasheet:: HS2MAF-T.pdf

Description:: 75NS, 2A, 1000V, HIGH EFFICIENT

Quantity:: RFQ Add To RFQ list

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Inventory:7,500

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Product details

Overview

HS2MAF-T from Taiwan Semiconductor is a 2 A, 1000 V repetitive peak reverse voltage (V_RRM) surface-mount fast recovery rectifier in SMAF package, featuring 1.33 V typical forward voltage at 2 A and 25°C, 75 ns reverse recovery time, and 12 pF junction capacitance - deployed in high-efficiency DC-DC converters and switching inverters.

For engineers reviewing the HS2MAF-T datasheet, HS2MAF-T pinout, HS2MAF-T application, or HS2MAF-T equivalent, key selection criteria include its 1000 V V_RRM, 50 A surge rating (8.3 ms), 150°C maximum junction temperature, low leakage (<5 µA at 25°C), and compatibility with automated SMT placement on J-STD-002 solderable matte tin leads.

Technical Context

This device is a single-die, glass-passivated silicon PN junction rectifier optimized for high-voltage, medium-current switching applications. Its 75 ns reverse recovery time and 12 pF junction capacitance support efficient operation in high-frequency SMPS topologies up to several hundred kHz.

The thermal design is anchored by R_θJL = 15°C/W and R_θJA = 89°C/W (on 5 mm × 5 mm Cu pad), enabling reliable 2 A continuous conduction at ambient temperatures up to 85°C without forced cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1000 V - supports input stages in 800 V AC rectification or 400–600 V DC bus systems with safety margin
I_F	2 A continuous - rated for sustained output current in compact DC-DC modules
I_FSM (8.3 ms)	50 A - withstands inrush and transient overloads in power supply startup
V_F @ 2 A, 25°C	1.33 V typ / 1.70 V max - determines conduction loss and thermal rise in high-duty-cycle operation
t_rr	75 ns - enables use in 100–500 kHz switching converters with low switching loss
C_J @ 1 MHz, 4 V	12 pF - minimizes capacitive coupling and EMI in high-dv/dt environments
T_J max	150°C - allows operation in thermally constrained industrial enclosures

Pinout & Package

Package: SMAF - surface-mount, molded plastic case meeting UL 94V-0, with matte tin-plated leads, cathode polarity indicated by band, weight ≈ 0.035 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input terminal for forward conduction path	Connected to lower-potential side (e.g., switch node or transformer secondary center-tap)
Cathode	Output terminal for forward conduction path	Connected to output rail or filter capacitor; marked by visible cathode band

Key Features

Feature	Design Value
Glass passivated chip junction	Ensures stable long-term reliability under humidity and thermal cycling per J-STD-020 Level 1 moisture sensitivity
Low reverse leakage	<5 µA at 25°C and rated V_RRM - reduces standby power loss in offline adapters
Fast recovery (75 ns)	Minimizes reverse recovery charge (Q_rr) and associated switching losses in hard-switched topologies
SMAF package with J-STD-002 solderability	Enables high-yield, lead-free reflow assembly in automated SMT lines without lead finish concerns

Applications

AC-DC Front-End Rectification	High-Voltage DC-DC Converter Output
Use Scenario: Rectifying 380–480 V AC industrial mains into ~540 V DC bus prior to isolation stage. IC Role / Device Role / Timing Role: High-voltage unidirectional current valve handling 2 A average load with minimal conduction loss. Use Value: 1000 V V_RRM provides 2× safety margin over peak line voltage; 1.33 V V_F limits power dissipation to <2.7 W at full load.	Use Scenario: Secondary-side synchronous rectification replacement in 400–600 V output telecom PSUs. IC Role / Device Role / Timing Role: Freewheeling diode clamping in forward or LLC resonant converter outputs. Use Value: 75 ns t_rr prevents cross-conduction loss during MOSFET dead-time; 12 pF C_J suppresses high-frequency ringing.
Switching Inverter Freewheeling	Industrial Motor Drive Snubber
Use Scenario: Bidirectional freewheeling path in 3-phase IGBT inverter legs driving PMSM motors. IC Role / Device Role / Timing Role: Clamp inductive kickback during IGBT turn-off in 600–800 V DC link systems. Use Value: 50 A I_FSM absorbs short-circuit energy; 150°C T_J max supports operation near heatsink surfaces.	Use Scenario: RC snubber network diode in high-di/dt gate drive or power stage protection circuits. IC Role / Device Role / Timing Role: Fast clamp element absorbing transient voltage spikes across switching nodes. Use Value: Low C_J (12 pF) avoids loading snubber timing; glass passivation ensures stability under repeated surge stress.

AC-DC Front-End Rectification

High-Voltage DC-DC Converter Output

Use Scenario: Rectifying 380–480 V AC industrial mains into ~540 V DC bus prior to isolation stage.

IC Role / Device Role / Timing Role: High-voltage unidirectional current valve handling 2 A average load with minimal conduction loss.

Use Value: 1000 V V_RRM provides 2× safety margin over peak line voltage; 1.33 V V_F limits power dissipation to <2.7 W at full load.

Use Scenario: Secondary-side synchronous rectification replacement in 400–600 V output telecom PSUs.

IC Role / Device Role / Timing Role: Freewheeling diode clamping in forward or LLC resonant converter outputs.

Use Value: 75 ns t_rr prevents cross-conduction loss during MOSFET dead-time; 12 pF C_J suppresses high-frequency ringing.

Switching Inverter Freewheeling

Industrial Motor Drive Snubber

Use Scenario: Bidirectional freewheeling path in 3-phase IGBT inverter legs driving PMSM motors.

IC Role / Device Role / Timing Role: Clamp inductive kickback during IGBT turn-off in 600–800 V DC link systems.

Use Value: 50 A I_FSM absorbs short-circuit energy; 150°C T_J max supports operation near heatsink surfaces.

Use Scenario: RC snubber network diode in high-di/dt gate drive or power stage protection circuits.

IC Role / Device Role / Timing Role: Fast clamp element absorbing transient voltage spikes across switching nodes.

Use Value: Low C_J (12 pF) avoids loading snubber timing; glass passivation ensures stability under repeated surge stress.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R06S	600 V V_RRM, 2 A, 60 ns t_rr, TO-277 package	Limited to ≤600 V systems; higher thermal resistance due to non-SMAF footprint	Select when lower V_RRM suffices and board space permits larger outline
ES2J-M3/5AT	600 V V_RRM, 2 A, 75 ns t_rr, SMA package (not SMAF), 1.7 V V_F max @ 2 A	Higher forward drop increases conduction loss; same recovery but less voltage margin	Choose for cost-sensitive designs where 600 V rating is acceptable and existing SMA land pattern applies

Compared with STTH2R06S and ES2J-M3/5AT, the HS2MAF-T uniquely delivers 1000 V blocking capability in the compact SMAF form factor while maintaining competitive 75 ns recovery and low leakage - making it the only option among the three qualified for 800 V DC bus or universal 380–480 V AC input systems without derating.

Availability

HS2MAF-T is available at Aetrix Electronics and suitable for industrial motor drives, telecom DC-DC converters, and high-voltage AC-DC front-end rectification requiring stable component supply and long-term manufacturing continuity.

Supply support for HS2MAF-T 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 for industrial and computing markets.

The HS2MAF-T belongs to TSC's HS2xAx-T high-voltage fast rectifier family, engineered specifically for high-efficiency, surface-mount switching power supplies operating at 100–500 kHz with stringent thermal and reliability requirements.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) of the HS2MAF-T?

The HS2MAF-T has a maximum repetitive peak reverse voltage (V_RRM) of 1000 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2103). This rating defines the highest reverse voltage the device can block repeatedly without breakdown, making HS2MAF-T suitable for 800 V DC bus and 480 V AC rectification applications with safety margin. The "M" in HS2MAF-T explicitly denotes the 1000 V variant within the HS2xAx-T series.

What is the forward voltage (V_F) of HS2MAF-T at 2 A and 25°C?

The HS2MAF-T exhibits a typical forward voltage of 1.33 V and a maximum of 1.70 V at 2 A and 25°C, per the Electrical Specifications table. This value directly impacts conduction loss and thermal design: at 2 A, worst-case power dissipation is 3.4 W. The HS2MAF-T's V_F is higher than lower-voltage variants (e.g., HS2DAF-T: 0.91 V), reflecting the trade-off between blocking voltage and on-state performance inherent in silicon rectifier design.

Does HS2MAF-T have a specified reverse recovery time (t_rr)?

Yes, the HS2MAF-T has a specified reverse recovery time (t_rr) of 75 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_RR = 0.25 A, as documented in the Electrical Specifications section. This parameter is critical for minimizing switching loss in high-frequency converters; the 75 ns t_rr places HS2MAF-T in the fast recovery category, distinguishing it from standard recovery rectifiers (>500 ns) and enabling use in 100–500 kHz SMPS designs.

What package type does HS2MAF-T use, and what are its key mechanical features?

The HS2MAF-T uses the SMAF surface-mount package, defined in the Mechanical Data and Package Outline Dimensions sections. Key features include UL 94V-0 compliant molding compound, matte tin-plated leads compliant with J-STD-002, cathode polarity indicated by a band, and a weight of approximately 0.035 g. The SMAF footprint is dimensionally compatible with SMA but offers improved thermal performance via enhanced leadframe design, and is optimized for high-volume automated placement.

Is HS2MAF-T RoHS compliant and halogen-free?

Yes, the HS2MAF-T is RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. These compliance attributes are verified for the entire HS2xAx-T family, including HS2MAF-T, and apply to all shipped units. No exemptions are cited, confirming full regulatory alignment for environmentally restricted markets.

HS2MAF-T 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):: 1000 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.7 V @ 2 A

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

Reverse Recovery Time (trr):: 75 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 1000 V

Capacitance @ Vr, F:: 12pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMAF

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

HS2MAF-T FAQ

1.How can I place an order for HS2MAF-T through Aetrix?

Please submit a Request for Quotation (RFQ) for HS2MAF-T 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 HS2MAF-T reliable?

The price and inventory of HS2MAF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HS2MAF-T is usually 5 days.

3.What payment methods are accepted for HS2MAF-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HS2MAF-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HS2MAF-T?

HS2MAF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HS2MAF-T 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 HS2MAF-T?

For technical support, including HS2MAF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HS2MAF-T requirements.

6.How does Aetrix verify that HS2MAF-T is sourced from the original manufacturer or authorized distributors?

All HS2MAF-T 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 HS2MAF-T meets industry standards.

7.What is the process for return or replacement of HS2MAF-T?

All HS2MAF-T units undergo pre-shipment inspection (PSI). If there is an issue with HS2MAF-T, 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 HS2MAF-T part is unused and in its original packaging.

Return procedure for HS2MAF-T:

1.Submit a request within 90 days.

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

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