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Taiwan Semiconductor Corporation SS215ALH
- Part No.:
- SS215ALH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
SS215ALH.pdf
- Description:
- 2A, 150V, SCHOTTKY RECTIFIER
- Quantity:
- Payment:
- Shipping:
Inventory:6,562
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Product details
Overview
SS215ALH from Taiwan Semiconductor is a 2 A, 150 V Schottky barrier surface-mount rectifier in Thin SMA package, featuring 0.81 V forward voltage at 2 A and 25°C, 48 pF junction capacitance, 50 A surge current rating, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SS215ALH datasheet, SS215ALH pinout, SS215ALH application, or SS215ALH equivalent, key selection criteria include reverse voltage margin (150 V VRRM), thermal resistance (RθJL = 21 °C/W), low-temperature forward voltage stability (0.67 V @ 2 A, 125°C), and moisture sensitivity level 1 compliance.
Technical Context
The SS215ALH operates as a single-die, unidirectional power rectifier optimized for high-frequency switching applications. Its Schottky architecture enables low conduction loss and fast recovery with no minority-carrier storage delay, supporting efficient operation in DC/DC converters up to several hundred kHz.
Thermal performance is defined by RθJL = 21 °C/W and RθJA = 78 °C/W on a 5 mm × 5 mm copper pad PCB. The device sustains continuous forward current up to 2 A at TJ ≤ 150°C and withstands 145 A peak surge (t = 1.0 ms) without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum repetitive reverse voltage; sets safe operating limit in 12–48 V input DC/DC stages with 2× transient margin. |
| IF | 2 A - Continuous average forward current; supports compact SMPS designs with minimal heatsinking. |
| VF @ 2 A, 25°C | 0.81 V (typ), 0.95 V (max) - Directly determines conduction loss (1.62 W typ) and thermal load in high-duty-cycle operation. |
| IFSM | 50 A (8.3 ms), 145 A (1.0 ms) - Enables robust startup and fault tolerance in automotive power modules. |
| CJ | 48 pF @ 1 MHz, 4 V - Low junction capacitance minimizes switching losses and EMI in high-frequency converters. |
| TJ max | +150 °C - Allows operation in under-hood automotive environments and sealed industrial enclosures. |
| Mechanical | Thin SMA package - 2.7 mm height enables ultra-low-profile board stacking and automated SMT placement. |
Pinout & Package
Package: Thin SMA (Surface Mount Assembly), molded UL 94V-0 compound, matte tin-plated leads, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., switch node or ground return); requires low-inductance layout for high di/dt stability. |
| Cathode | Current exit point during forward conduction; marked with band | Connected to higher-potential rail (e.g., output capacitor positive); polarity misplacement causes catastrophic short in buck/flyback topologies. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including temperature cycling, HTRB, and ESD. |
| Moisture sensitivity level 1 | No bake preconditioning required before reflow; compatible with standard J-STD-020-compliant assembly lines. |
| Low forward voltage at 125°C | VF = 0.67 V @ 2 A - Maintains efficiency and thermal headroom in thermally constrained environments. |
| High surge current capability | 145 A peak (1.0 ms) - Absorbs inrush and fault currents without bond wire fusing in 12 V/24 V systems. |
| Halogen-free construction | Complies with IEC 61249-2-21 - Meets RoHS and automotive OEM material declaration requirements. |
Applications
| Automotive On-Board DC/DC Converter | Industrial SMPS Secondary Rectification |
|---|---|
Use Scenario: 12 V to 3.3 V/5 V conversion in ADAS camera modules and infotainment ECUs. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter; handles 2 A continuous load with <100 ns turn-off. Use Value: 0.81 V VF reduces conduction loss by ~18% vs. comparable 200 V Si diodes, improving system efficiency by 1.2% at full load. | Use Scenario: Secondary-side rectification in 48 V telecom PSUs delivering 2 A at 12 V output. IC Role / Device Role / Timing Role: Freewheeling diode in flyback or forward converter; clamps transformer leakage energy during MOSFET off-time. Use Value: 48 pF CJ limits capacitive switching loss and dv/dt-induced EMI, easing EMC filter design. |
| LED Driver Power Stage | USB-C PD Adapter Output Rectification |
Use Scenario: Constant-current LED string driver in commercial lighting fixtures with 24–48 V input. IC Role / Device Role / Timing Role: High-side rectifier in boost-derived topology; conducts during PWM off-phase with 200 kHz switching. Use Value: RθJL = 21 °C/W enables direct thermal coupling to metal-core PCB, eliminating need for thermal vias in cost-sensitive designs. | Use Scenario: Output rectification in 65 W USB-C PD adapter with 20 V output and 3.25 A load. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in quasi-resonant flyback; provides zero-recovery advantage over Si FETs at light load. Use Value: AEC-Q101 qualification ensures long-term reliability under repeated thermal cycling during plug/unplug events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-2EY15-M3/57T | Same 150 V VRRM, 2 A IF, but VF = 0.85 V (max) @ 2 A, 25°C; RθJA = 85 °C/W. | Slightly higher conduction loss; less suitable for thermally dense layouts. | Preferred where Vishay supply chain alignment or legacy BOM reuse is prioritized. |
| ON Semiconductor SB2150-E3/54 | 150 V VRRM, 2 A IF, VF = 0.82 V (max) @ 2 A, 25°C; not AEC-Q101 qualified; MSL level 1 unchanged. | Lacks automotive qualification; limited to industrial/commercial use only. | Select when AEC-Q101 is not required and ON Semi sourcing preference applies. |
Compared with VS-2EY15-M3/57T and SB2150-E3/54, the SS215ALH delivers superior thermal performance (RθJL = 21 °C/W), tighter VF distribution, and validated automotive reliability-making it optimal for space-constrained, high-reliability 12–48 V power rails.
Availability
SS215ALH is available at Aetrix Electronics and suitable for automotive on-board DC/DC converters, industrial SMPS secondary rectification, and LED driver power stages requiring stable component supply and AEC-Q101 compliance.
Supply support for SS215ALH 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 automotive, industrial, and consumer markets since 1979.
The SS2xALH series targets high-efficiency, surface-mount power rectification in automotive and industrial power supplies, emphasizing AEC-Q101 reliability, low-profile packaging, and consistent parametric performance across voltage grades.
FAQ
What is the maximum junction temperature rating for the SS215ALH?
The SS215ALH has a maximum junction temperature (TJ) of +150 °C, verified per absolute maximum ratings. This allows sustained operation in under-hood automotive environments and sealed industrial enclosures. Derating curves confirm 2 A continuous current is maintainable up to this limit when mounted on a 5 mm × 5 mm Cu pad. Thermal design must respect RθJL = 21 °C/W to avoid exceeding TJ in real-world conditions. The SS215ALH datasheet specifies no derating below -55 °C.
Is the SS215ALH suitable for automotive applications?
Yes, the SS215ALH is AEC-Q101 qualified, meaning it has passed stress tests including high-temperature reverse bias, temperature cycling, and highly accelerated life testing required for automotive power electronics. Its Thin SMA package, MSL level 1 rating, and halogen-free construction align with Tier 1 supplier requirements. The SS215ALH is deployed in ADAS camera modules, body control units, and on-board chargers where reliability under thermal and mechanical stress is critical.
What is the forward voltage of the SS215ALH at elevated temperature?
At 2 A and 125°C, the SS215ALH exhibits a typical forward voltage of 0.67 V and a maximum of 0.80 V. This represents a 17% reduction versus its 25°C value (0.81 V typ), confirming favorable temperature coefficient for Schottky devices. This behavior improves thermal stability in high-ambient applications and reduces conduction loss drift during warm-up. The SS215ALH maintains this performance across its full operating range without parameter shift or degradation.
Does the SS215ALH have a specified junction-to-case thermal resistance?
Yes, the SS215ALH specifies RθJC = 20 °C/W in the thermal performance section. This value reflects heat transfer from junction to case surface under standardized test conditions (JEDEC 51-14). It is distinct from RθJL = 21 °C/W (junction-to-lead) and RθJA = 78 °C/W (junction-to-ambient on 5 mm × 5 mm Cu pad). Designers use RθJC when modeling thermal interface materials or custom heatsink attachments directly to the package body.
What packaging and reel quantity is available for the SS215ALH?
The SS215ALH is supplied in Thin SMA package on tape-and-reel format, with 14,000 units per reel. This configuration supports high-speed automated placement in SMT lines compliant with IPC-7351 standards. The marking code "215ALH" appears on the cathode band side, and the device meets J-STD-002 solderability requirements. No special handling beyond standard MSL level 1 protocols is required prior to reflow.
SS215ALH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 150 V
- Capacitance @ Vr, F:
- 48pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Thin SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS215ALH FAQ
1.How can I place an order for SS215ALH through Aetrix?
Please submit a Request for Quotation (RFQ) for SS215ALH 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 SS215ALH reliable?
The price and inventory of SS215ALH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS215ALH is usually 5 days.
3.What payment methods are accepted for SS215ALH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS215ALH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS215ALH?
SS215ALH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS215ALH 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 SS215ALH?
For technical support, including SS215ALH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS215ALH requirements.
6.How does Aetrix verify that SS215ALH is sourced from the original manufacturer or authorized distributors?
All SS215ALH 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 SS215ALH meets industry standards.
7.What is the process for return or replacement of SS215ALH?
All SS215ALH units undergo pre-shipment inspection (PSI). If there is an issue with SS215ALH, 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 SS215ALH part is unused and in its original packaging.
Return procedure for SS215ALH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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