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Taiwan Semiconductor Corporation ABS8 REG
- Part No.:
- ABS8 REG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Bridge Rectifiers
- Package:
- 4-SMD, Gull Wing
- Datasheet:
-
ABS8 REG.pdf
- Description:
- BRIDGE RECT 1PHASE 800V 1A ABS
- Quantity:
- Payment:
- Shipping:
Inventory:1,266
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Product details
Overview
ABS8 REG from Taiwan Semiconductor is a 1A, 800V repetitive peak reverse voltage (VRRM) standard single-phase bridge rectifier in ABS surface-mount package, featuring glass-passivated junctions, 30A peak surge current (IFSM), and AEC-Q101 qualification option (ABS8H). It delivers reliable AC-to-DC conversion in compact power adapters and lighting drivers.
For engineers reviewing the ABS8 REG datasheet, ABS8 REG pinout, ABS8 REG application, or ABS8 REG equivalent, key selection criteria include VRRM = 800 V, IF = 1.0 A on aluminum substrate, RθJA = 80 °C/W, moisture sensitivity level 1, and UL recognition E-326854 - all critical for thermal design, automotive compliance, and automated SMT placement.
Technical Context
The ABS8 REG implements a quad-diode full-wave bridge configuration with common-cathode/common-anode topology, enabling single-phase AC input rectification without external diode pairing. Its glass-passivated chip junction ensures stable reverse leakage (<10 µA at 25°C) and robustness against humidity and thermal cycling.
Thermally, it relies on lead-frame conduction (RθJL = 25 °C/W) and PCB copper area for dissipation, with derated forward current dropping to 0.8 A on FR-4 and maintaining 1.0 A only when mounted on aluminum substrate - a key constraint for high-reliability lighting and adapter designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports 560 V RMS input; suitable for universal AC mains (85–265 VAC) with margin |
| IF | 1.0 A (on aluminum substrate) - continuous DC output current capability under optimized thermal layout |
| IFSM | 30 A - withstands 8.3 ms half-sine surge; handles inrush in SMPS startup |
| VF | ≤0.95 V @ 0.4 A - low conduction loss per diode; total bridge drop ≤1.9 V at rated load |
| TJ max | 150 °C - enables operation in enclosed, thermally constrained environments like LED drivers |
| RθJA | 80 °C/W - requires ≥1 cm² copper pour on 1 oz Cu layer for safe 1 A operation at 50°C ambient |
Pinout & Package
Package: ABS - surface-mount molded plastic case (UL 94V-0), 4-terminal single-row configuration with polarity marked on top surface. Dimensions per TSC Package Outline Drawing ABS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ~AC1 | AC input terminal 1 | One leg of AC input; connects to live/neutral line; symmetrical with ~AC2 |
| ~AC2 | AC input terminal 2 | Second leg of AC input; forms full-wave bridge input pair with ~AC1 |
| +DC | Positive DC output | Anode of internal upper diodes; supplies regulated or filtered DC bus |
| –DC | Negative DC output / common return | Cathode of internal lower diodes; serves as system ground reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant (ABS8H) | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock - required for under-hood or headlamp modules |
| Glass-passivated junction | Eliminates need for conformal coating in humid environments; extends lifetime in outdoor lighting applications |
| Matte tin-plated leads | Ensures solderability per J-STD-002; compatible with lead-free reflow profiles up to 260°C peak |
| Moisture sensitivity level 1 | No dry-pack or baking required before SMT assembly - reduces manufacturing overhead and floor-life management |
Applications
| LED Lighting Driver | USB-C Power Adapter |
|---|---|
Use Scenario: Rectifying 100–277 VAC input in constant-current LED driver PCBs for streetlights and commercial fixtures. IC Role / Device Role / Timing Role: Primary AC/DC conversion stage; provides isolated DC bus for downstream buck or flyback controller. Use Value: 800 V VRRM accommodates 277 VAC line surges; 150 °C TJ max allows operation inside sealed, thermally insulated housings. | Use Scenario: Input-stage bridge in compact 30–65 W USB PD adapters with universal AC input. IC Role / Device Role / Timing Role: Full-wave rectifier feeding active PFC or quasi-resonant flyback controller. Use Value: ABS package footprint minimizes board area; 30 A IFSM absorbs inrush during cold-start without derating. |
| Industrial Control Power Supply | Smart Home Gateway Power Stage |
Use Scenario: Mains-powered PLC I/O module requiring long-term reliability across -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Front-end rectifier converting AC to unregulated DC for linear or switching regulators. Use Value: UL Recognized File #E-326854 satisfies safety certification requirements; RoHS/halogen-free compliance meets industrial environmental mandates. | Use Scenario: Low-profile AC/DC power section in wall-mounted smart home hubs with space-constrained PCBs. IC Role / Device Role / Timing Role: Compact bridge rectifier enabling <12 mm height profile while supporting 230 VAC nominal input. Use Value: ABS package height ≤2.3 mm; moisture level 1 eliminates pre-bake, accelerating NPI and small-batch production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| GBU8K (ON Semiconductor) | VRRM = 800 V, IF = 8 A, GBU package (larger, through-hole); RθJA ≈ 50 °C/W | Requires PCB hole drilling and wave soldering; unsuitable for fully SMT lines | Select when higher current headroom or legacy through-hole assembly is mandated |
| ABS8M (Diotec) | VRRM = 800 V, IF = 1.0 A, same ABS package; no AEC-Q101 option; IR = 5 µA max @ 25°C | Lacks automotive qualification; tighter reverse leakage spec but no UL file | Select for cost-sensitive consumer lighting where AEC-Q101 and UL recognition are not required |
Compared with GBU8K and ABS8M, ABS8 REG offers the optimal balance of SMT compatibility, UL recognition, and AEC-Q101 availability in the ABS footprint - making it the preferred choice for new automotive-adjacent and certified industrial designs requiring surface-mount efficiency and compliance traceability.
Availability
ABS8 REG is available at Aetrix Electronics and suitable for LED lighting drivers, USB-C power adapters, and industrial control power supplies requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for ABS8 REG 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 rectifiers, TVS, MOSFETs, and bipolar transistors since 1979.
The ABS series was designed specifically for high-volume, cost-sensitive AC/DC front-end applications demanding compact SMT packaging, automotive-grade variants, and globally recognized safety certifications - targeting lighting, adapter, and industrial power markets.
FAQ
What is the maximum continuous forward current rating for ABS8 REG?
The ABS8 REG has a rated forward current (IF) of 1.0 A when mounted on an aluminum substrate, and 0.8 A on standard FR-4 glass-epoxy PCB. This derating reflects thermal limitations - the device's RθJA of 80 °C/W requires adequate copper area or metal-core board to sustain 1 A continuously. Always verify junction temperature using actual board layout and ambient conditions in your design.
Does ABS8 REG meet automotive reliability standards?
Yes - the ABS8H variant (AEC-Q101 qualified) is available and validated per JESD22-A101, A108, and A114 for temperature cycling, high-acceleration stress test, and mechanical shock. The standard ABS8 REG is not AEC-Q101 qualified; only ABS8H carries this certification. Designers must specify ABS8H explicitly for automotive applications such as headlamp drivers or body control modules.
What is the reverse leakage current specification for ABS8 REG at elevated temperature?
At 125°C junction temperature and rated reverse voltage, ABS8 REG exhibits a maximum reverse current (IR) of 150 µA per diode. At 25°C, the limit is 10 µA. These values are measured under pulsed conditions (30 ms pulse width) and reflect the device's glass-passivated junction stability - critical for low-power standby modes in energy-efficient lighting systems.
Is ABS8 REG compliant with RoHS and halogen-free requirements?
Yes - ABS8 REG is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants, and the matte tin-plated leads meet JEDEC J-STD-002 solderability requirements. This makes ABS8 REG suitable for export to EU, China, and other regulated markets requiring full substance compliance documentation.
What is the UL recognition status of ABS8 REG?
ABS8 REG is UL Recognized under File #E-326854, confirming compliance with UL 60747-4 for semiconductor devices. This recognition covers flammability (UL 94V-0), electrical insulation, and construction integrity - enabling faster end-product safety certification for power supplies and lighting equipment targeting North American markets.
ABS8 REG 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):
- 800 V
- Current - Average Rectified (Io):
- 1 A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 400 mA
- Current - Reverse Leakage @ Vr:
- 10 µA @ 800 V
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- ABS
ABS8 REG FAQ
1.How can I place an order for ABS8 REG through Aetrix?
Please submit a Request for Quotation (RFQ) for ABS8 REG 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 ABS8 REG reliable?
The price and inventory of ABS8 REG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ABS8 REG is usually 5 days.
3.What payment methods are accepted for ABS8 REG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ABS8 REG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ABS8 REG?
ABS8 REG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ABS8 REG 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 ABS8 REG?
For technical support, including ABS8 REG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ABS8 REG requirements.
6.How does Aetrix verify that ABS8 REG is sourced from the original manufacturer or authorized distributors?
All ABS8 REG 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 ABS8 REG meets industry standards.
7.What is the process for return or replacement of ABS8 REG?
All ABS8 REG units undergo pre-shipment inspection (PSI). If there is an issue with ABS8 REG, 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 ABS8 REG part is unused and in its original packaging.
Return procedure for ABS8 REG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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