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

Taiwan Semiconductor Corporation PUUP3BH

Name: PUUP3BH
Brand: Taiwan Semiconductor Corporation
SKU: PUUP3BH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PUUP3BH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-277, 3-PowerDFN

Datasheet:: PUUP3BH.pdf

Description:: DIODE GEN PURP 100V 3A TO277A

Quantity:: RFQ Add To RFQ list

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Inventory:5,990

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Product details

Overview

PUUP3BH from Taiwan Semiconductor is a 100V, 3A ultra-fast surface-mount rectifier in TO-277A (SMPC4.6U) package, featuring 25ns reverse recovery time, 0.86V forward voltage at 3A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a high-efficiency freewheeling or snubber diode in DC/DC converters operating up to several hundred kHz.

For engineers reviewing the PUUP3BH datasheet, PUUP3BH pinout, PUUP3BH application, or PUUP3BH equivalent, key selection criteria include its 100V V_RRM, 85A I_FSM, wettable flank leads for solder inspection, JESD201 Class 2 whisker resistance, and -55°C to +175°C junction temperature range.

Technical Context

The PUUP3BH uses planar silicon technology to achieve ultra-fast switching with low Q_rr (51nC) and low trr (23–25ns), enabling reduced switching losses in high-frequency topologies. Its single-die configuration and TO-277A thermal design deliver R_θJL = 2.0°C/W with ideal heatsinking and R_θJA = 52.4°C/W on a 16mm × 16mm Cu pad PCB.

Designed for automotive and industrial power conversion, it supports repetitive operation at TJ = 175°C and meets moisture sensitivity level 1 per J-STD-020. The cathode-band polarity marking and matte tin-plated leads ensure compatibility with automated SMT assembly and IPC-A-610-compliant solder joints.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum blocking voltage before avalanche; sets upper limit for DC bus or snubber voltage rating
I_F	3 A continuous - Rated average forward current at case temperature ≤ 115°C on standard PCB layout
t_rr	23–25 ns - Enables operation in >500 kHz switching circuits with minimal turn-off loss and EMI
V_F @ 3A/25°C	0.86 V max - Low conduction loss improves efficiency in 12V–48V output DC/DC stages
Q_rr	51 nC - Quantifies stored charge removed during reverse recovery; directly impacts switching loss and diode stress
R_θJA	52.4 °C/W - Thermal resistance from junction to ambient on 16 mm × 16 mm Cu pad; determines derating curve slope
I_FSM	85 A @ 8.3 ms - Surge capability for startup inrush or transient overload without failure

Pinout & Package

Package: TO-277A (SMPC4.6U), surface-mount, single-die ultra-fast rectifier with wettable flank leads and cathode band polarity indicator. Dimensions comply with JEDEC MO-277.

Pin/Terminal	Circuit Role	Design Meaning
1 (Anode)	Anode connection	Primary current entry point; connects to switching node or inductor output in buck/flyback topologies
2 (Anode)	Anode connection	Second anode terminal - electrically tied internally; provides dual-pad thermal and mechanical robustness
3 (Cathode)	Cathode connection	Current exit path; ties to output capacitor ground or common return; marked by visible cathode band

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive underhood applications including engine control, ADAS power supplies, and body electronics
Wettable flank leads	Enables automated optical solder-joint inspection (AOI) without X-ray; improves process yield in high-reliability SMT lines
Low Q_rr (51 nC)	Reduces turn-off energy loss and voltage overshoot in synchronous rectifier or active clamp circuits
Junction temp. range: –55°C to +175°C	Supports operation in extreme environments such as motor drives, industrial inverters, and under-hood DC/DC modules
Moisture sensitivity level 1	Zero bake requirement prior to reflow; simplifies manufacturing flow and eliminates moisture-related popcorning risk

Applications

Automotive DC/DC Converters	Industrial Snubber Circuits
Use Scenario: Step-down conversion from 48V battery to 12V auxiliary rail in EV power distribution units. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter, conducting during low-side FET off-time. Use Value: 25ns t_rr minimizes reverse recovery loss and enables stable 300–500 kHz operation with low EMI generation.	Use Scenario: Clamp network across IGBTs in motor drive inverters to suppress voltage spikes during turn-off. IC Role / Device Role / Timing Role: Ultra-fast recovery diode absorbing inductive kickback energy within <30ns window. Use Value: 51nC Q_rr and 100V V_RRM provide precise clamping with minimal stored charge-induced oscillation.
High-Frequency SMPS	On-Board Charger (OBC) Auxiliary Supplies
Use Scenario: Output rectification in 1–3 MHz GaN-based AC/DC adapters for data center PSUs. IC Role / Device Role / Timing Role: Secondary-side rectifier handling 3A average current with minimal conduction and switching loss. Use Value: 0.86V V_F at 3A reduces conduction loss; TO-277A package enables efficient heat transfer to PCB copper.	Use Scenario: Isolated bias supply for gate drivers in 6.6kW OBC PFC and inverter stages. IC Role / Device Role / Timing Role: Input rectifier feeding offline flyback controller IC, operating continuously at elevated ambient temperatures. Use Value: 175°C T_JMAX and AEC-Q101 qualification ensure long-term reliability in sealed, thermally constrained enclosures.

Automotive DC/DC Converters

Industrial Snubber Circuits

Use Scenario: Step-down conversion from 48V battery to 12V auxiliary rail in EV power distribution units.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck converter, conducting during low-side FET off-time.

Use Value: 25ns t_rr minimizes reverse recovery loss and enables stable 300–500 kHz operation with low EMI generation.

Use Scenario: Clamp network across IGBTs in motor drive inverters to suppress voltage spikes during turn-off.

IC Role / Device Role / Timing Role: Ultra-fast recovery diode absorbing inductive kickback energy within <30ns window.

Use Value: 51nC Q_rr and 100V V_RRM provide precise clamping with minimal stored charge-induced oscillation.

High-Frequency SMPS

On-Board Charger (OBC) Auxiliary Supplies

Use Scenario: Output rectification in 1–3 MHz GaN-based AC/DC adapters for data center PSUs.

IC Role / Device Role / Timing Role: Secondary-side rectifier handling 3A average current with minimal conduction and switching loss.

Use Value: 0.86V V_F at 3A reduces conduction loss; TO-277A package enables efficient heat transfer to PCB copper.

Use Scenario: Isolated bias supply for gate drivers in 6.6kW OBC PFC and inverter stages.

IC Role / Device Role / Timing Role: Input rectifier feeding offline flyback controller IC, operating continuously at elevated ambient temperatures.

Use Value: 175°C T_JMAX and AEC-Q101 qualification ensure long-term reliability in sealed, thermally constrained enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L06S	V_RRM = 600V, I_F = 3A, t_rr = 35ns, TO-277A package, no AEC-Q101	Higher voltage rating suits 400V PFC front-ends; slower recovery increases loss above 200kHz	Select when >100V blocking is required and AEC-Q101 is not mandatory
MBR3100FCT	V_RRM = 100V, I_F = 3A, t_rr ≈ 30ns, TO-277A, AEC-Q101 qualified, VF = 0.89V @ 3A	Similar voltage/current rating but higher V_F and slightly slower recovery than PUUP3BH	Acceptable where 0.03V higher V_F and 5ns longer t_rr are tolerable in thermal budget

Compared with STTH3L06S and MBR3100FCT, the PUUP3BH delivers the lowest combination of t_rr (23–25ns) and V_F (0.86V) at 100V rating while maintaining AEC-Q101 compliance-making it optimal for compact, high-frequency automotive and industrial DC/DC designs where thermal headroom and EMI are critical.

Availability

PUUP3BH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber networks, and high-frequency SMPS requiring stable component supply, AEC-Q101 qualification, and consistent TO-277A packaging.

Supply support for PUUP3BH 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, serving automotive, industrial, and consumer markets since 1979.

The PUUP3BH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in thermally demanding automotive and industrial environments.

FAQ

What is the maximum junction temperature rating for PUUP3BH?

The PUUP3BH has a maximum junction temperature (T_JMAX) of +175°C, validated per AEC-Q101 stress testing. This allows continuous operation in under-hood automotive applications and high-ambient industrial environments. Derating begins above 115°C case temperature per the forward current derating curve in the official PUUP3BH datasheet.

Is PUUP3BH pin-compatible with other TO-277A rectifiers like MBR3100FCT?

Yes, PUUP3BH shares the same TO-277A (SMPC4.6U) package outline and 3-pin terminal arrangement (Anode-Anode-Cathode) as MBR3100FCT, enabling direct PCB footprint reuse. However, differences in forward voltage and reverse recovery time require verification of thermal and switching performance in the target circuit before substitution.

Does PUUP3BH meet automotive qualification standards?

Yes, PUUP3BH is AEC-Q101 qualified, confirming its suitability for automotive electronic systems. This includes passing stress tests for temperature cycling, humidity bias, high-temperature operating life, and mechanical shock - all documented in the official PUUP3BH qualification report issued by Taiwan Semiconductor.

What is the reverse recovery time (t_rr) specification for PUUP3BH?

The PUUP3BH specifies t_rr = 23 ns (typical) and ≤25 ns (maximum) under conditions of I_F = 0.5A, I_R = 1.0A, and I_rr = 0.25A. An alternate test condition (I_F = 1.0A, di/dt = 50A/µs, V_R = 30V) yields 31 ns - both values are published in the PUUP3BH electrical specifications table.

What does the "BH" suffix indicate in PUUP3BH?

The "BH" suffix in PUUP3BH denotes the 100V repetitive peak reverse voltage (V_RRM) variant within the PUUP3xH family. Per the ordering information, "x" maps to voltage grade: "B" = 100V (PUUP3BH), "D" = 200V (PUUP3DH). The device marking code is PU3BH.

PUUP3BH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-277, 3-PowerDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 930 mV @ 3 A

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

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 2 µA @ 100 V

Capacitance @ Vr, F:: 47pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-277A (SMPC)

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

PUUP3BH FAQ

1.How can I place an order for PUUP3BH through Aetrix?

Please submit a Request for Quotation (RFQ) for PUUP3BH 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 PUUP3BH reliable?

The price and inventory of PUUP3BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUUP3BH is usually 5 days.

3.What payment methods are accepted for PUUP3BH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUUP3BH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PUUP3BH?

PUUP3BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PUUP3BH 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 PUUP3BH?

For technical support, including PUUP3BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUUP3BH requirements.

6.How does Aetrix verify that PUUP3BH is sourced from the original manufacturer or authorized distributors?

All PUUP3BH 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 PUUP3BH meets industry standards.

7.What is the process for return or replacement of PUUP3BH?

All PUUP3BH units undergo pre-shipment inspection (PSI). If there is an issue with PUUP3BH, 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 PUUP3BH part is unused and in its original packaging.

Return procedure for PUUP3BH:

1.Submit a request within 90 days.

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

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