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Taiwan Semiconductor Corporation SS15HM2G
- Part No.:
- SS15HM2G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SS15HM2G.pdf
- Description:
- DIODE SCHOTTKY 50V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,198
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Product details
Overview
SS15HM2G from Taiwan Semiconductor is a 1A, 50V Schottky barrier surface-mount rectifier in DO-214AC (SMA) package, featuring 0.75V forward voltage at 1A/25°C, 40A peak surge current, and 125°C maximum junction temperature. It serves as a low-loss freewheeling or output rectifier in compact DC/DC converters and AC/DC adapters.
For engineers reviewing the SS15HM2G datasheet, SS15HM2G pinout, SS15HM2G application, or SS15HM2G equivalent, key selection criteria include forward voltage drop at operating temperature, reverse leakage at rated VRRM, thermal resistance (RθJL = 28°C/W), and compatibility with automated SMT placement per J-STD-002 solderability standards.
Technical Context
This discrete Schottky diode uses a single-die construction optimized for high-frequency switching applications. Its low forward voltage minimizes conduction loss, while the guard ring structure enhances ruggedness against transient overvoltage events.
The device operates across -55°C to +125°C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements. Its DO-214AC package supports high-density PCB layouts with standardized SMA footprint and cathode band polarity marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage; defines safe blocking capability in DC/DC output stage |
| IF | 1 A - Continuous forward current rating; sets minimum trace width and thermal pad design |
| VF @ 1A, 25°C | 0.75 V - Forward voltage drop; directly determines conduction loss (0.75W at 1A) |
| IFSM | 40 A - Non-repetitive surge current (8.3ms half-sine); validates robustness during power-up transients |
| RθJL | 28 °C/W - Junction-to-lead thermal resistance; enables accurate lead temperature estimation under load |
| IR @ 50V, 25°C | 200 µA - Reverse leakage current; impacts standby power in always-on circuits |
| TJ max | 125 °C - Maximum operating junction temperature; constrains ambient derating in enclosed adapters |
Pinout & Package
DO-214AC (SMA) surface-mount package with molded plastic body (UL 94V-0), matte tin-plated leads, and cathode indicated by a visible band on the body. Weight: 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter) |
| Cathode | Forward current exit point | Connected to output rail; polarity marked by band; critical for correct orientation in automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 0.75 V at 1A/25°C reduces conduction loss by ~20% vs. comparable 1A silicon rectifiers |
| Guard ring protection | Enhances dv/dt immunity (10,000 V/µs) and improves reliability in noisy SMPS environments |
| J-STD-020 Level 1 MSL | Enables unlimited floor life and eliminates bake requirements before reflow soldering |
| Halogen-free & RoHS compliant | Meets IPC-1752A material declaration requirements for green electronics manufacturing |
Applications
| Switching Mode Power Supply (SMPS) | AC/DC Adapter |
|---|---|
Use Scenario: Secondary-side rectification in 5–24V output flyback or forward converters. IC Role / Device Role / Timing Role: Freewheeling diode conducting during MOSFET off-time; defines output ripple and efficiency. Use Value: 0.75V VF lowers conduction loss, enabling >88% efficiency at light-to-moderate loads without synchronous rectification. | Use Scenario: Output rectification in compact wall-mounted USB-C PD adapters. IC Role / Device Role / Timing Role: Unidirectional current path converting transformer secondary AC to regulated DC. Use Value: DO-214AC footprint allows high-density layout; 40A IFSM withstands inrush surges during plug-in events. |
| DC/DC Converter | Monitor Power Supply |
Use Scenario: Buck converter output rectifier in industrial control modules. IC Role / Device Role / Timing Role: Synchronous rectifier alternative where gate drive complexity is avoided. Use Value: RθJL = 28°C/W enables direct thermal coupling to copper pour, limiting TJ rise to <15°C at 1A continuous. | Use Scenario: Auxiliary 12V rail rectification in LCD monitor mainboard power section. IC Role / Device Role / Timing Role: High-reliability output diode subjected to repeated thermal cycling. Use Value: -55°C to +125°C operating range ensures stable performance across display ambient temperature variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS15H-E3/5AT (Vishay) | Same VRRM (50V), identical DO-214AC package, but VF = 0.72V @ 1A/25°C and IR = 150µA @ 50V/25°C | Slightly lower leakage supports ultra-low-standby designs; same thermal profile | Select when tighter IR spec is required and Vishay supply chain is preferred |
| SB150-TB (ON Semiconductor) | 50V VRRM, DO-214AC, but VF = 0.82V @ 1A/25°C and RθJA = 95°C/W (vs. 88°C/W for SS15HM2G) | Higher VF increases conduction loss; marginally higher thermal resistance affects board-level derating | Acceptable for cost-sensitive designs where 0.07V VF penalty is tolerable |
Compared with SS15HM2G, SS15H-E3/5AT offers marginally better leakage and forward voltage, while SB150-TB trades higher conduction loss for broader distributor availability-making SS15HM2G optimal for thermally constrained, efficiency-critical adapter designs.
Availability
SS15HM2G is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and DC/DC converters requiring stable component supply, consistent parametric performance, and full traceability through J-STD-020 Level 1 handling compliance.
Supply support for SS15HM2G 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 management and industrial markets since 1979.
The SS1x series was developed specifically for high-efficiency, surface-mount rectification in space-constrained consumer and industrial power supplies, emphasizing low VF, robust surge capability, and automated assembly readiness.
FAQ
What is the maximum junction temperature rating for SS15HM2G?
The SS15HM2G has a maximum junction temperature (TJ) of +125°C, validated across its full operating current range. This rating applies under steady-state conditions with proper PCB thermal management and must be derated linearly above 25°C ambient per the forward current derating curve in the SS12–SS115 datasheet. Exceeding 125°C risks permanent degradation of the Schottky junction in SS15HM2G.
Does SS15HM2G meet RoHS and halogen-free requirements?
Yes, SS15HM2G is RoHS compliant and halogen-free per Taiwan Semiconductor's R2305 specification. The molding compound satisfies UL 94V-0 flammability rating, and terminals are matte tin plated to meet J-STD-002 solderability standards. These attributes are confirmed in the Mechanical Data and Features sections of the official SS12–SS115 datasheet for SS15HM2G.
What is the forward voltage of SS15HM2G at 1A and 100°C junction temperature?
The forward voltage of SS15HM2G is 0.65V at 1A and 100°C junction temperature, as specified in the Electrical Specifications table of the SS12–SS115 datasheet. This value reflects reduced barrier height at elevated temperature and is critical for thermal stability analysis in high-ambient applications such as enclosed adapters where SS15HM2G operates near its TJ limit.
Is SS15HM2G suitable for automated SMT placement?
Yes, SS15HM2G is explicitly designed for automated placement, as stated in its FEATURES list. Its DO-214AC (SMA) package conforms to JEDEC DO-214 variation AC, features standardized lead geometry, and carries J-STD-020 Level 1 moisture sensitivity-eliminating bake requirements prior to reflow. These characteristics ensure reliable pick-and-place yield for SS15HM2G in high-volume manufacturing.
What is the reverse leakage current of SS15HM2G at rated 50V and 125°C?
At 50V reverse voltage and 125°C junction temperature, the reverse leakage current (IR) of SS15HM2G is not specified in the provided datasheet excerpt; however, for the SS15–SS16 subgroup, leakage is specified as "–" (not characterized) at 125°C. The datasheet confirms IR ≤ 5mA at 100°C and ≤ 2mA at 150°C for SS15–SS16, indicating SS15HM2G exhibits moderate thermal drift typical of Schottky diodes-but precise 125°C data requires consultation of the full SS12–SS115 R2305 document.
SS15HM2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SS15HM2G FAQ
1.How can I place an order for SS15HM2G through Aetrix?
Please submit a Request for Quotation (RFQ) for SS15HM2G 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 SS15HM2G reliable?
The price and inventory of SS15HM2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS15HM2G is usually 5 days.
3.What payment methods are accepted for SS15HM2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS15HM2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS15HM2G?
SS15HM2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS15HM2G 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 SS15HM2G?
For technical support, including SS15HM2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS15HM2G requirements.
6.How does Aetrix verify that SS15HM2G is sourced from the original manufacturer or authorized distributors?
All SS15HM2G 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 SS15HM2G meets industry standards.
7.What is the process for return or replacement of SS15HM2G?
All SS15HM2G units undergo pre-shipment inspection (PSI). If there is an issue with SS15HM2G, 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 SS15HM2G part is unused and in its original packaging.
Return procedure for SS15HM2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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