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Taiwan Semiconductor Corporation ABS20M-T
- Part No.:
- ABS20M-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
ABS20M-T.pdf
- Description:
- BRIDGE RECT 1PHASE 1KV 1.6A ABS
- Quantity:
- Payment:
- Shipping:
Inventory:5,672
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Product details
Overview
ABS20M-T from Taiwan Semiconductor is a 2 A, 1000 V standard bridge rectifier in ABS package with quad configuration, glass-passivated junctions, and 50 A peak surge capability; used in AC/DC conversion stages of switching mode power supplies and LED lighting drivers.
For engineers reviewing the ABS20M-T datasheet, ABS20M-T pinout, ABS20M-T application, or ABS20M-T equivalent, key selection factors include repetitive peak reverse voltage (1000 V), forward current rating (2.0 A on aluminum substrate), thermal resistance (RθJA = 85 °C/W), and UL recognition (E-326854).
Technical Context
The ABS20M-T integrates four silicon diodes in a single-phase full-wave bridge configuration, enabling AC-to-DC conversion without external interconnection. Its glass-passivated junction ensures stable reverse leakage (<5 µA at 25°C) and high reliability under thermal cycling.
Designed for surface-mount assembly, it supports automated placement and meets JESD201 Class 1A whisker resistance and J-STD-020 Level 1 moisture sensitivity. The ABS molded plastic case complies with UL 94V-0 and RoHS/halogen-free standards (IEC 61249-2-21).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands peak reverse voltage up to 1000 V without breakdown, suitable for 700 V RMS input lines. |
| IF (on Al substrate) | 2.0 A - Continuous forward current derating starts above 25°C ambient; enables compact heatsinkless designs in low-power SMPS. |
| IFSM | 50 A - Single half-sine surge rating (8.3 ms) supports inrush current handling during cold-start of adapters. |
| VF @ 2 A, 25°C | 1.10 V max - Total bridge forward drop ≤ 2.2 V at full load, limiting conduction loss to ~2.2 W at 2 A. |
| RθJA | 85 °C/W - Junction-to-ambient thermal resistance defines required PCB copper area (≥1.5 cm² 2 oz Cu) for safe 2 A operation at 50°C ambient. |
| TJ max | 150 °C - Maximum junction temperature allows operation in enclosed lighting fixtures with limited airflow. |
Pinout & Package
Package: ABS - Molded plastic, 4-terminal single-phase bridge rectifier with matte tin-plated leads; UL 94V-0 rated, 0.093 g weight, polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~ (AC1) | AC input terminal 1 | One of two AC input nodes; connects to live/neutral line; symmetrical with AC2 for bidirectional AC input. |
| ~ (AC2) | AC input terminal 2 | Second AC input node; forms full-wave rectification path with AC1; no internal distinction between terminals. |
| + (DC+) | Positive DC output | Anode of internal bridge output; delivers rectified positive voltage to bulk capacitor or regulator input. |
| – (DC–) | Negative DC output | Cathode of internal bridge output; serves as circuit ground reference for downstream DC stage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Reduces surface leakage and improves long-term stability under humid conditions; validated by <5 µA IR at 25°C. |
| UL Recognized (E-326854) | Meets safety requirements for end-equipment certification in commercial power supplies and lighting. |
| J-STD-020 Level 1 moisture sensitivity | Enables unlimited floor life before reflow; eliminates baking requirement in SMT production. |
| JESD201 Class 1A whisker resistance | Prevents tin whisker growth on leads, ensuring reliability in automotive-adjacent industrial applications. |
| Halogen-free (IEC 61249-2-21) | Complies with environmental regulations for disposal and recycling; no brominated flame retardants in molding compound. |
Applications
| LED Lighting Driver | AC/DC Adapter |
|---|---|
Use Scenario: Rectifying 120/230 VAC mains into DC bus for constant-current LED driver ICs in downlights and streetlights. IC Role / Device Role / Timing Role: Primary AC/DC conversion element; provides isolated DC input to secondary-side controller and MOSFET. Use Value: 1000 V VRRM accommodates line surges and harmonics; 50 A IFSM handles lamp hot-restrike currents. | Use Scenario: Input-stage rectification in wall-mounted USB-C PD and laptop adapters rated up to 65 W. IC Role / Device Role / Timing Role: Front-end bridge rectifier feeding PFC or flyback controller; operates continuously at 2 A average load. Use Value: Low RθJA (85 °C/W) and 2.0 A rating on aluminum substrate enable thermally efficient layout without heatsinks. |
| Industrial Control Power Supply | Appliance Auxiliary Power |
Use Scenario: Generating +12 V and +5 V auxiliary rails from 230 VAC for PLC I/O modules and sensor interfaces. IC Role / Device Role / Timing Role: Mains-input rectifier in non-isolated buck-derived auxiliary supply; operates in intermittent duty cycle. Use Value: UL recognition (E-326854) and -55°C to +150°C operating range support wide-temperature industrial deployment. | Use Scenario: Providing standby power in refrigerators, washing machines, and HVAC controllers where space and cost are constrained. IC Role / Device Role / Timing Role: Compact, low-cost bridge replacing discrete diode solutions in low-power auxiliary converters. Use Value: ABS package footprint (7.1 × 5.2 mm) and tape-and-reel packaging (5,000 pcs) optimize SMT line efficiency and BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU2K-E3/51 (Vishay) | Same 2 A / 1000 V rating; GBU package (larger, 15.7 × 10.2 mm); RθJA = 50 °C/W; higher IFSM (60 A). | Better thermal performance but requires larger PCB area; suited for higher-power adapters (>100 W). | Select when board space permits and lower thermal resistance is critical; not drop-in due to footprint mismatch. |
| DB107S (ON Semiconductor) | Lower VRRM (1000 V same), but IF = 1.0 A (half); ABS package; RθJA = 90 °C/W; no UL recognition. | Limited to sub-15 W applications; lacks safety certification for commercial end equipment. | Acceptable only for cost-sensitive, non-certified internal circuits; not recommended for UL-marked products. |
Compared with GBU2K-E3/51 and DB107S, the ABS20M-T offers optimal balance of certified safety (UL E-326854), compact ABS footprint, and sufficient surge margin (50 A) for mainstream 20–65 W power supplies-without over-spec'ing thermal or mechanical requirements.
Availability
ABS20M-T is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, RoHS compliance, and UL-recognized safety certification.
Supply support for ABS20M-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, serving global power and protection markets since 1979.
The ABS-series bridge rectifiers are designed for cost-sensitive, high-volume AC/DC front-end applications where reliability, safety certification, and SMT manufacturability are prioritized over ultra-low VF or ultra-high surge ratings.
FAQ
What is the maximum continuous forward current rating for ABS20M-T at 70°C ambient temperature?
The ABS20M-T is rated for 2.0 A continuous forward current when mounted on an aluminum substrate at 25°C. At 70°C ambient, derating applies per the Forward Current Derating Curve (Fig.1): approximately 1.5 A is sustainable with adequate PCB copper area. The ABS20M-T datasheet specifies RθJA = 85 °C/W, so junction temperature rise must remain below 125°C above ambient to stay within the 150°C TJ limit.
Does ABS20M-T support lead-free reflow soldering per JEDEC J-STD-020?
Yes, ABS20M-T is qualified for lead-free reflow soldering. It is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it has unlimited floor life and can withstand peak reflow temperatures up to 260°C without preconditioning. The matte tin-plated leads meet J-STD-002 solderability requirements, and the ABS package is compatible with standard Pb-free reflow profiles.
Is ABS20M-T certified for use in medical or life-support equipment?
No, ABS20M-T is explicitly not designed for medical, life-saving, or life-sustaining applications. Taiwan Semiconductor's notice states that products shown-including ABS20M-T-are excluded from such use. For medical-grade power supplies, components with specific safety certifications (e.g., IEC 60601-1 reinforced isolation, enhanced creepage) and extended reliability validation are required; ABS20M-T does not meet those criteria.
What is the marking code printed on the ABS20M-T device body?
The ABS20M-T is marked "ABS20M" on its top surface, followed by a date code (YW) and factory code (F), as shown in the Marking Diagram section of the datasheet. This marking aligns with the ordering code ABS20M-T and confirms the device is the 1000 V, 2 A variant in ABS package-not to be confused with lower-voltage variants like ABS20J (600 V) or ABS20K (800 V).
How does the forward voltage of ABS20M-T vary with temperature and current?
Per the Electrical Specifications table, ABS20M-T exhibits negative temperature coefficient for VF: at 1 A, VF drops from 0.92 V (typ) at 25°C to 0.80 V (typ) at 125°C. At 2 A, VF is ≤1.10 V at 25°C and ≤0.94 V at 125°C. This behavior reduces conduction loss at elevated junction temperatures, improving thermal stability in sealed lighting enclosures where ABS20M-T is commonly deployed.
ABS20M-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 4-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Type:
- Single Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 1 kV
- Current - Average Rectified (Io):
- 1.6 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 2 A
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- ABS
ABS20M-T FAQ
1.How can I place an order for ABS20M-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ABS20M-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 ABS20M-T reliable?
The price and inventory of ABS20M-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ABS20M-T is usually 5 days.
3.What payment methods are accepted for ABS20M-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ABS20M-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ABS20M-T?
ABS20M-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ABS20M-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 ABS20M-T?
For technical support, including ABS20M-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ABS20M-T requirements.
6.How does Aetrix verify that ABS20M-T is sourced from the original manufacturer or authorized distributors?
All ABS20M-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 ABS20M-T meets industry standards.
7.What is the process for return or replacement of ABS20M-T?
All ABS20M-T units undergo pre-shipment inspection (PSI). If there is an issue with ABS20M-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 ABS20M-T part is unused and in its original packaging.
Return procedure for ABS20M-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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