Taiwan Semiconductor Corporation PUUP4DH
- Part No.:
- PUUP4DH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
PUUP4DH.pdf
- Description:
- DIODE GEN PURP 200V 4A TO277A
- Quantity:
- Payment:

- Shipping:

Inventory:10,610
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Product details
Overview
PUUP4DH from Taiwan Semiconductor is a 200V, 4A ultra-fast surface-mount rectifier in TO-277A (SMPC4.6U) package, featuring 25 ns reverse recovery time, 0.84 V forward voltage at 4A/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 PUUP4DH datasheet, PUUP4DH pinout, PUUP4DH application, or PUUP4DH equivalent, key selection criteria include its 200V VRRM, wettable flank leads for solder inspection, 130A IFSM, JESD201 Class 2 whisker resistance, and thermal resistance of 2.0°C/W (junction-to-lead with ideal heatsink).
Technical Context
The PUUP4DH employs planar silicon technology optimized for ultra-fast switching with low Qrr (57 nC) and low trr (24–25 ns), enabling reduced switching losses in hard-switched topologies. Its single-die configuration and TO-277A package support high-current conduction while maintaining low thermal resistance.
Designed for automotive and industrial power supplies, it operates across –55°C to +175°C junction temperature range, meets moisture sensitivity level 1 (J-STD-020), and features matte tin-plated leads compliant with J-STD-002 solderability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines maximum DC bus or snubber clamp voltage capability |
| IF | 4 A - Continuous average forward current at TL = 115°C; supports compact 12–48V DC/DC output stages |
| trr | 24–25 ns - Measured under IF = 0.5A/1.0A, di/dt = 50–200 A/µs; enables >500 kHz switching without excessive turn-off loss |
| VF @ 4A, 25°C | 0.84 V (typ), 0.93 V (max) - Low conduction loss improves efficiency in high-duty-cycle rectification |
| RθJL | 2.0 °C/W - Junction-to-lead thermal resistance with ideal heatsink; enables direct thermal coupling to PCB copper pour or metal-core board |
| Qrr | 57 nC - Reverse recovery charge; directly impacts turn-off ESW and EMI generation in flyback and LLC resonant converters |
| AEC-Q101 | Qualified - Validated for automotive power electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
Package: TO-277A (SMPC4.6U), surface-mount, single-die ultra-fast rectifier with wettable flank leads and cathode band polarity marking. Dimensions comply with JEDEC MS-012AC variant; 3-terminal configuration with anode-anode-cathode layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode 1) | Anode terminal | Primary anode connection; electrically tied internally to Anode 2; used for dual-anode parallel routing or Kelvin sensing |
| 2 (Anode 2) | Anode terminal | Second anode connection; identical internal node to Pin 1; enables low-inductance layout or thermal spreading |
| 3 (Cathode) | Cathode terminal | Common cathode output; carries full forward current; marked by visible cathode band on package body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood applications including engine control, ADAS power rails, and EV auxiliary supplies |
| Wettable flank leads | Enables automated optical inspection (AOI) of solder fillet integrity on bottom-side SMT reflow joints |
| Low Qrr (57 nC) | Reduces turn-off energy loss and di/dt-induced voltage overshoot in high-frequency synchronous rectifiers |
| TO-277A thermal performance | RθJL = 2.0°C/W allows >3W continuous dissipation with minimal external heatsinking when mounted on ≥16 mm × 16 mm Cu pad |
| J-STD-020 Level 1 MSL | Zero bake requirement before reflow; supports standard SMT assembly without moisture-sensitive handling protocols |
Applications
| Automotive DC/DC Converters | Industrial Snubber Networks |
|---|---|
Use Scenario: 12V–48V bidirectional DC/DC converter in 48V mild-hybrid vehicle architecture. IC Role / Device Role / Timing Role: Freewheeling rectifier in synchronous buck-boost stage, operating at 200–300 kHz with 200V transient clamping. Use Value: 200V VRRM withstands load-dump transients; 25 ns trr minimizes cross-conduction loss during dead-time transitions. | Use Scenario: RCD snubber across MOSFET drain-source in 1 kW industrial motor drive inverter stage. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive turn-off energy during 10–20 kHz PWM switching. Use Value: 130A IFSM handles peak snubber surge; low VF reduces steady-state power loss in high-duty-cycle snubbers. |
| High-Frequency Flyback Supplies | Telecom Power Rectification |
Use Scenario: Primary-side auxiliary supply in 100W telecom flyback adapter operating at 500 kHz. IC Role / Device Role / Timing Role: Output rectifier delivering 12V/1A with tight regulation and low EMI. Use Value: 57 nC Qrr suppresses ringing and reduces filter component count; RoHS/halogen-free compliance meets IPC-1752A reporting. | Use Scenario: Secondary-side rectification in 48V PoE++ (IEEE 802.3bt) powered device power entry module. IC Role / Device Role / Timing Role: High-reliability 4A output rectifier supporting continuous operation at 60°C ambient. Use Value: 175°C TJMAX ensures margin under sustained load; JESD201 Class 2 whisker resistance prevents field failure in long-life deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-4EWH02-M3/45 | 200V VRRM, 4A IF, but trr = 35 ns (vs. 25 ns), Qrr = 85 nC (vs. 57 nC); TO-277A package, same pinout | Higher switching loss in >300 kHz designs; less suitable for critical snubber or zero-voltage-transition circuits | Select PUUP4DH where lower Qrr and faster trr are required for EMI-sensitive or high-efficiency targets |
| ON Semiconductor MUR420G | 200V VRRM, 4A IF, but TO-220AC package (through-hole), trr = 35 ns, no AEC-Q101 qualification | Not suitable for automotive SMT production; lacks wettable flank and MSL-1 rating; higher thermal resistance | Choose PUUP4DH for automotive SMT volume production requiring AEC-Q101, AOI compatibility, and superior thermal performance |
Compared with VS-4EWH02-M3/45 and MUR420G, PUUP4DH delivers lower switching loss via 25 ns trr and 57 nC Qrr, supports automotive-grade manufacturing with wettable flank and AEC-Q101, and achieves 2.0°C/W RθJL-enabling higher power density in space-constrained SMT layouts.
Availability
PUUP4DH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber networks, and high-frequency flyback supplies requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for PUUP4DH 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 automotive and industrial markets.
The PUUP4DH belongs to TSC's ultra-fast rectifier product line, engineered specifically for high-frequency, high-reliability power conversion in automotive and industrial environments where low Qrr, AEC-Q101 compliance, and robust thermal performance are mandatory.
FAQ
What is the maximum junction temperature rating for PUUP4DH?
The PUUP4DH has a maximum junction temperature (TJMAX) of +175°C, validated across its full operating range from –55°C to +175°C. This rating supports use in under-hood automotive applications and high-ambient industrial power supplies. Derating curves confirm 4A average forward current is sustainable at lead temperature (TL) up to 115°C. The PUUP4DH's thermal design must respect this limit to ensure long-term reliability and avoid parametric shift.
Is PUUP4DH pin-compatible with PUUP4BH?
Yes, PUUP4DH is pin-compatible with PUUP4BH - both share identical TO-277A (SMPC4.6U) package, 3-pin anode-anode-cathode layout, and mechanical footprint. The only functional difference is VRRM: PUUP4BH is rated for 100V, while PUUP4DH is rated for 200V. No PCB layout change is needed when upgrading from PUUP4BH to PUUP4DH for higher voltage margin.
Does PUUP4DH support automated optical inspection (AOI)?
Yes, PUUP4DH features wettable flank leads designed explicitly for AOI of solder fillets in bottom-side SMT reflow processes. Its lead geometry and matte tin plating meet IPC-A-610 Class 2/3 requirements for solder joint inspection. This capability eliminates manual visual checks and supports high-yield automotive electronics manufacturing, distinguishing PUUP4DH from non-wettable alternatives like standard TO-220 or DPAK rectifiers.
What is the reverse recovery charge (Qrr) of PUUP4DH and why does it matter?
The PUUP4DH specifies Qrr = 57 nC under standard test conditions (IF = 4.0A, di/dt = 200 A/µs, VR = 100V). This parameter directly determines turn-off switching loss and voltage overshoot in hard-switched converters. A lower Qrr reduces ESW and EMI, making PUUP4DH especially valuable in high-frequency DC/DC and snubber applications where efficiency and noise control are critical.
Is PUUP4DH compliant with automotive reliability standards?
Yes, PUUP4DH is AEC-Q101 qualified, having passed all stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling, and unbiased highly accelerated stress testing (uHAST). This qualification confirms suitability for automotive power electronics such as engine control units, ADAS domain controllers, and 48V system DC/DC converters - not just industrial or consumer use.
PUUP4DH 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):
- 200 V
- Current - Average Rectified (Io):
- 4A
- Voltage - Forward (Vf) (Max) @ If:
- 930 mV @ 4 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 200 V
- Capacitance @ Vr, F:
- 71pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
- Operating Temperature - Junction:
- -55°C ~ 175°C
PUUP4DH FAQ
1.How can I place an order for PUUP4DH through Aetrix?
Please submit a Request for Quotation (RFQ) for PUUP4DH 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 PUUP4DH reliable?
The price and inventory of PUUP4DH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUUP4DH is usually 5 days.
3.What payment methods are accepted for PUUP4DH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUUP4DH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PUUP4DH?
PUUP4DH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PUUP4DH 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 PUUP4DH?
For technical support, including PUUP4DH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUUP4DH requirements.
6.How does Aetrix verify that PUUP4DH is sourced from the original manufacturer or authorized distributors?
All PUUP4DH 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 PUUP4DH meets industry standards.
7.What is the process for return or replacement of PUUP4DH?
All PUUP4DH units undergo pre-shipment inspection (PSI). If there is an issue with PUUP4DH, 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 PUUP4DH part is unused and in its original packaging.
Return procedure for PUUP4DH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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