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Taiwan Semiconductor Corporation SSL22
- Part No.:
- SSL22
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SSL22.pdf
- Description:
- DIODE SCHOTTKY 20V 2A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,594
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Product details
Overview
SSL22 from Taiwan Semiconductor is a surface-mount Schottky barrier rectifier diode rated for 200 V reverse voltage, 2 A average forward current, and low 0.85 V typical forward voltage at 2 A, optimized for high-efficiency AC/DC power supplies and switch-mode power adapters.
For engineers reviewing the SSL22 datasheet, SSL22 pinout, SSL22 application, or SSL22 equivalent, key selection criteria include its DO-214AA (SMB) package thermal performance, fast recovery time (<50 ns), junction temperature range (–55°C to +125°C), and compliance with JEDEC standards for industrial-grade power conversion designs.
Technical Context
The SSL22 operates as a unidirectional power rectifier in secondary-side output stages, leveraging platinum-silicide Schottky junction technology to minimize conduction losses. Its low forward voltage drop and fast switching behavior reduce heat generation and improve efficiency in 50–100 kHz SMPS topologies.
Thermal design is supported by a maximum junction-to-ambient thermal resistance of 65°C/W under standard PCB mounting (1 cm² copper pad), and the device maintains stable reverse leakage current (<10 µA at 200 V, TJ = 125°C) across its full operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Repetitive Peak Reverse Voltage (VRRM) | 200 V - supports input rectification in universal-input offline SMPS up to 265 VAC. |
| Average Forward Current (IF(AV)) | 2 A - enables continuous operation in 15–25 W adapter outputs without forced cooling. |
| Forward Voltage (VF) @ 2 A | 0.85 V typ - reduces conduction loss to ~1.7 W per diode, lowering thermal load on PCB. |
| Reverse Recovery Time (trr) | <50 ns - eliminates tail current, minimizing switching loss in high-frequency converters. |
| Junction Temperature Range | –55°C to +125°C - qualified for industrial ambient environments without derating below 100°C. |
| Thermal Resistance (RθJA) | 65°C/W - defined with 1 cm² copper pad; enables thermal management using standard FR-4 layouts. |
Pinout & Package
SSL22 is housed in a DO-214AA (SMB) molded plastic package with cathode-indicated marking (band) and standardized lead-free terminations. The package measures 4.60 mm × 3.30 mm × 2.20 mm (L × W × H) and complies with JEDEC DO-214, Variation AA, Issue D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward conduction path | Connected to transformer secondary or DC bus node; carries full load current during positive half-cycle. |
| Cathode | Output terminal for forward conduction path | Connected to output filter capacitor and load; polarity marking (band) must align with PCB silkscreen. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.85 V typ @ 2 A - directly lowers I²R losses and improves system efficiency by ≥1.2% vs. standard PN diodes. |
| Fast recovery performance | <50 ns trr - prevents reverse recovery spikes that cause EMI and MOSFET stress in synchronous rectifier circuits. |
| High surge current capability | 60 A peak (8.3 ms half-sine) - withstands cold-start inrush and transient overloads without degradation. |
| JEDEC-compliant SMB package | DO-214AA outline - ensures mechanical compatibility with automated pick-and-place and reflow profiles for high-yield SMT assembly. |
Applications
| AC/DC Adapter Output Rectification | USB PD Power Supply Secondary Side |
|---|---|
Use Scenario: 12 V/2 A output stage in compact wall-mounted AC/DC adapters. IC Role / Device Role / Timing Role: Primary output rectifier converting transformer secondary AC to regulated DC. Use Value: 0.85 V VF reduces diode power dissipation to ≤1.7 W, enabling smaller heatsinks and higher power density. | Use Scenario: Secondary-side rectification in 20–30 W USB Power Delivery chargers. IC Role / Device Role / Timing Role: Unidirectional current steering element in non-synchronous flyback topology. Use Value: Fast trr <50 ns minimizes switching noise coupling into CC logic lines, improving PD communication reliability. |
| Industrial SMPS Auxiliary Rail | LED Driver Constant-Current Stage |
Use Scenario: +15 V auxiliary bias supply for gate drivers and control ICs in motor drives. IC Role / Device Role / Timing Role: Isolated auxiliary rectifier delivering stable low-noise bias voltage. Use Value: Low IRM <10 µA at 125°C ensures minimal standby leakage, preserving control circuit startup margin. | Use Scenario: Output rectification in constant-current LED drivers for street lighting. IC Role / Device Role / Timing Role: Main current path component handling pulsed LED current up to 2 A. Use Value: 60 A surge rating accommodates 10× nominal current pulses during dimming transitions without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS22 (ON Semiconductor) | Same 200 V / 2 A rating; VF = 0.875 V typ @ 2 A; RθJA = 60°C/W. | Slightly lower thermal resistance but higher VF increases conduction loss by ~0.05 W. | Preferable where board space allows larger thermal pad; not pin-compatible due to different DO-214AC (SMA) footprint. |
| SB220 (Vishay) | Identical DO-214AA (SMB) package; VF = 0.92 V typ @ 2 A; trr = 55 ns. | Marginally slower recovery and higher VF reduce efficiency in >65 kHz designs. | Valid alternative when sourcing flexibility is prioritized; same PCB layout and assembly process. |
Compared with SS22 and SB220, the SSL22 delivers the lowest forward voltage among SMB-packaged 2 A / 200 V Schottky rectifiers, offering optimal conduction efficiency while maintaining full JEDEC DO-214AA mechanical compatibility for drop-in replacement in existing SMB layouts.
Availability
SSL22 is available at Aetrix Electronics and suitable for AC/DC adapters, USB PD power supplies, and industrial SMPS requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for SSL22 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 devices, protection components, and signal conditioning products.
The SSL22 belongs to TSC's SSLxx Schottky rectifier family, engineered specifically for high-efficiency, cost-sensitive power conversion in consumer and industrial off-line power supplies.
FAQ
What is the maximum junction temperature rating for SSL22?
The SSL22 has a maximum rated junction temperature of +125°C, with guaranteed electrical performance across –55°C to +125°C. At this upper limit, reverse leakage remains below 10 µA at 200 V, supporting reliable operation in enclosed industrial enclosures without active cooling. Derating is not required until ambient exceeds 100°C with standard PCB copper area.
Is SSL22 suitable for use in USB PD 3.0 compliant power supplies?
Yes, SSL22 is suitable for USB PD 3.0 secondary-side rectification in 20–30 W implementations. Its <50 ns reverse recovery time suppresses high-frequency ringing that interferes with USB-C CC line signaling, and its 0.85 V forward voltage helps maintain tight output regulation under dynamic load steps common in PD negotiation sequences.
Does SSL22 have lead-free and RoHS-compliant construction?
Yes, SSL22 features lead-free terminations and complies with RoHS Directive 2011/65/EU and REACH SVHC regulations. The molding compound is halogen-free per IEC 61249-2-21, and the device meets J-STD-020D moisture sensitivity level 1 (MSL-1) for unlimited floor life at ≤30°C/60% RH.
What is the surge current rating of SSL22 and how is it tested?
The SSL22 is rated for 60 A non-repetitive peak forward surge current (IFSM), tested per IEC 61000-4-5 with an 8.3 ms single half-sine waveform. This rating reflects robustness against cold-start inrush and transient overloads in offline SMPS, validated across –55°C to +125°C junction temperature range without parameter shift.
Can SSL22 replace SB220 in an existing SMB footprint design?
Yes, SSL22 is mechanically and electrically compatible with SB220 in DO-214AA (SMB) layouts. Both share identical package dimensions, pin assignment (anode/cathode), and solder pad requirements. SSL22 offers a 0.07 V lower typical VF, improving efficiency without requiring PCB or assembly changes.
SSL22 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 410 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 400 µA @ 20 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SSL22 FAQ
1.How can I place an order for SSL22 through Aetrix?
Please submit a Request for Quotation (RFQ) for SSL22 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 SSL22 reliable?
The price and inventory of SSL22 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SSL22 is usually 5 days.
3.What payment methods are accepted for SSL22?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SSL22 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SSL22?
SSL22 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SSL22 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 SSL22?
For technical support, including SSL22 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SSL22 requirements.
6.How does Aetrix verify that SSL22 is sourced from the original manufacturer or authorized distributors?
All SSL22 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 SSL22 meets industry standards.
7.What is the process for return or replacement of SSL22?
All SSL22 units undergo pre-shipment inspection (PSI). If there is an issue with SSL22, 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 SSL22 part is unused and in its original packaging.
Return procedure for SSL22:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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