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Taiwan Semiconductor Corporation BA159G-K
- Part No.:
- BA159G-K
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BA159G-K.pdf
- Description:
- 500NS, 1A, 1000V, FAST RECOVERY
- Quantity:
- Payment:
- Shipping:
Inventory:7,850
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Product details
Overview
BA159G-K from Taiwan Semiconductor is a 1A, 1000V fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 500 ns reverse recovery time, 1.3 V forward voltage at 1 A, and 30 A surge capability - deployed in high-efficiency AC/DC front-end stages of industrial power adapters.
For engineers reviewing the BA159G-K datasheet, BA159G-K pinout, BA159G-K application, or BA159G-K equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (60 °C/W), junction capacitance (15 pF), and RoHS/halogen-free compliance for regulated power conversion designs.
Technical Context
This single-die, glass-passivated fast recovery rectifier operates with a maximum junction temperature of 150 °C and supports repetitive 1000 V reverse blocking. Its low VF (≤1.3 V) and fast trr (≤500 ns) reduce conduction and switching losses in high-frequency SMPS topologies.
The device uses pure tin-plated leads compliant with J-STD-002 solderability and meets JESD 201 Class 1A whisker resistance. Polarity is marked by a cathode band on the DO-41 body, and the molding compound satisfies UL 94V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - enables use in 800 V DC bus or 700 V RMS AC input applications without derating |
| IF | 1 A continuous - suitable for output rectification in sub-15 W isolated flyback or non-isolated buck-derived supplies |
| trr | 500 ns max - minimizes switching loss and EMI generation in 65–130 kHz SMPS designs |
| VF | 1.3 V max at 1 A, 25°C - contributes to <1.3 W conduction loss at full load, improving thermal margin |
| RθJA | 60 °C/W - allows ~1.2 W dissipation at 75°C ambient before reaching 150°C junction limit |
| CJ | 15 pF typical at 4 V - reduces capacitive coupling noise in high dv/dt gate-drive or snubber circuits |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, glass-passivated silicon die, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward current flow | Connected to AC or switched node; must withstand full reverse voltage when off |
| Cathode | Output terminal for forward current flow | Connected to output rail or filter capacitor; polarity marking ensures correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances moisture resistance and long-term reliability under humid or thermally cycled conditions |
| Low VF (≤1.3 V) | Reduces conduction loss by ~15% vs. standard recovery diodes, lowering heatsink requirements |
| High IFSM (30 A) | Withstands inrush surges during cold-start or line transients without degradation |
| RoHS & halogen-free | Meets IEC 61249-2-21 and global environmental compliance mandates for end-product certification |
Applications
| Server Power Supply Front-End | Industrial AC/DC Adapter |
|---|---|
Use Scenario: Rectifying 230 VAC input in 1U server PSU with active PFC stage. IC Role / Device Role / Timing Role: Fast recovery output rectifier in boost PFC diode clamp or auxiliary supply winding. Use Value: 1000 V VRRM prevents breakdown during 380 VDC bus transients; 500 ns trr limits switching loss at 100 kHz operation. | Use Scenario: Output rectification in 24 V/0.5 A medical-grade wall adapter. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in flyback converter. Use Value: 1.3 V VF ensures <0.65 W loss at full load, enabling compact enclosure without forced air cooling. |
| DC-DC Converter Input Stage | Automotive Aftermarket Charger |
Use Scenario: Input rectification in 48 V input telecom DC-DC module. IC Role / Device Role / Timing Role: Bridge or single-diode rectifier feeding bulk capacitor after isolation transformer. Use Value: 30 A IFSM handles 48 V battery jump-start surges; DO-41 package fits legacy through-hole layouts. | Use Scenario: AC input rectification in 12 V/3 A vehicle battery charger. IC Role / Device Role / Timing Role: Primary-side bridge rectifier in offline quasi-resonant topology. Use Value: UL 94V-0 molding compound and JESD 201 Class 1A whisker resistance ensure field reliability in high-vibration environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast recovery rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | Same 1 A / 600 V rating; 250 ns trr (faster), but lower VRRM limits use to ≤420 V RMS inputs | Preferred in space-constrained 65 kHz flybacks where speed outweighs voltage headroom | Select when trr < 300 ns is mandatory and system peak reverse stress stays below 600 V |
| ON Semi MUR110E | 1 A / 1000 V; 75 ns trr (much faster); higher VF (1.7 V) increases conduction loss | Better for high-frequency ZVS/ZCS resonant converters requiring ultra-fast turn-off | Choose when switching frequency exceeds 250 kHz and thermal design accommodates +0.4 V VF penalty |
Compared with STTH1R06 and MUR110E, BA159G-K delivers optimal balance of 1000 V robustness, 500 ns recovery, and 1.3 V VF for cost-sensitive 65–130 kHz industrial power supplies - avoiding over-specification while ensuring margin against line surges.
Availability
BA159G-K is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and DC-DC converters requiring stable component supply with consistent DO-41 through-hole form factor and RoHS/halogen-free compliance.
Supply support for BA159G-K 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 industrial, computing, and consumer markets since 1979.
The BA15xG-K series targets cost-effective, high-reliability AC/DC front-end and secondary-side rectification, emphasizing thermal robustness, surge resilience, and regulatory compliance for global power adapter and SMPS applications.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for BA159G-K?
The BA159G-K has a VRRM rating of 1000 V, verified per TSC datasheet revision B2104. This allows safe operation in 700 V RMS AC input systems with 1.4× safety margin, making BA159G-K suitable for universal-input industrial power supplies where transient overvoltage immunity is critical.
Does BA159G-K meet RoHS and halogen-free requirements?
Yes, BA159G-K is RoHS compliant and halogen-free per IEC 61249-2-21, confirmed in the official TSC product documentation. The device uses green molding compound and pure tin-plated leads, satisfying environmental compliance for CE, UL, and China RoHS certifications required in commercial and industrial end equipment.
What is the thermal resistance (RθJA) of BA159G-K and how does it affect layout?
BA159G-K has a junction-to-ambient thermal resistance of 60 °C/W in free-air conditions. When designing PCB layouts, maintain ≥2 mm clearance around the DO-41 body and avoid copper pours directly under the leads to prevent localized heating; this RθJA value assumes standard JEDEC test board conditions.
Can BA159G-K replace BA158G-K or BA157G-K in an existing design?
BA159G-K is backward compatible with BA158G-K (600 V) and BA157G-K (400 V) in DO-41 footprint and pinout, but its higher 1000 V VRRM introduces no electrical risk. However, verify that the increased reverse voltage rating does not inadvertently relax snubber or clamping design margins in sensitive high-speed topologies.
What is the reverse recovery time (trr) specification for BA159G-K and under what conditions is it measured?
The BA159G-K reverse recovery time is rated at ≤500 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per TSC datasheet. This parameter is critical for minimizing switching loss in 65–130 kHz SMPS designs and was validated using the test circuit shown in Figure 6 of the BA15xG-K datasheet.
BA159G-K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 500 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- 150°C
BA159G-K FAQ
1.How can I place an order for BA159G-K through Aetrix?
Please submit a Request for Quotation (RFQ) for BA159G-K 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 BA159G-K reliable?
The price and inventory of BA159G-K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BA159G-K is usually 5 days.
3.What payment methods are accepted for BA159G-K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BA159G-K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BA159G-K?
BA159G-K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BA159G-K 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 BA159G-K?
For technical support, including BA159G-K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BA159G-K requirements.
6.How does Aetrix verify that BA159G-K is sourced from the original manufacturer or authorized distributors?
All BA159G-K 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 BA159G-K meets industry standards.
7.What is the process for return or replacement of BA159G-K?
All BA159G-K units undergo pre-shipment inspection (PSI). If there is an issue with BA159G-K, 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 BA159G-K part is unused and in its original packaging.
Return procedure for BA159G-K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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