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Vishay General Semiconductor - Diodes Division SS14-6HE3_A/I
- Part No.:
- SS14-6HE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SS14-6HE3_A/I.pdf
- Description:
- DIODE SCHOTTKY 40V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,976
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Product details
Overview
SS14-6HE3_A/I from Vishay General Semiconductor is a surface-mount Schottky barrier rectifier rated for 40 V repetitive peak reverse voltage, 1.0 A average forward current, and 40 A non-repetitive surge current, with 0.50 V typical forward voltage at 1.0 A - used in DC/DC converters, freewheeling diode circuits, and polarity protection in automotive and industrial power supplies.
For engineers reviewing the SS14-6HE3_A/I datasheet, SS14-6HE3_A/I pinout, SS14-6HE3_A/I application, or SS14-6HE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, DO-214AC (SMA) package, low VF, high dV/dt capability (10,000 V/μs), and thermal resistance (RθJA = 88 °C/W).
Technical Context
This Schottky rectifier uses a planar guardring structure to enhance overvoltage robustness and suppress leakage under transient conditions. Its low forward voltage drop and fast switching speed stem from metal–semiconductor junction design optimized for high-frequency operation up to several hundred kHz.
It operates across -65 °C to +150 °C junction temperature range and meets J-STD-020 MSL Level 1 with 260 °C peak reflow profile. The device is single-diode configuration with cathode indicated by color band and matte tin-plated leads compliant with JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - maximum repetitive reverse blocking voltage; defines safe operating limit in polarity protection and flyback clamp circuits |
| IF(AV) | 1.0 A - continuous forward current rating at TL; determines heatsink-free operation on PCB with 5 mm × 5 mm copper pad |
| VF @ 1.0 A | 0.50 V - low conduction loss enabling >92 % efficiency in 5 V–12 V DC/DC output stages |
| IFSM | 40 A - peak surge rating for 8.3 ms half-sine; supports inrush and fault-current handling in SMPS inputs |
| dV/dt | 10,000 V/μs - high voltage transient immunity; prevents false turn-on during fast-switching MOSFET gate drive transitions |
| TJ max. | +150 °C - extended junction temperature enables use in under-hood automotive modules without derating |
| RθJA | 88 °C/W - thermal resistance from junction to ambient; sets power dissipation limit of ~1.14 W at 75 °C ambient |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-diode configuration with cathode identified by molded color band. Dimensions: 4.93 mm × 2.54 mm × 2.29 mm (L × W × H); weight 0.064 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or ground return in reverse polarity protection) |
| Cathode | Forward current exit point / reverse blocking terminal | Marked with color band; tied to higher-potential rail (e.g., input VBUS or output rail); blocks reverse current flow above 40 V |
Key Features
| Feature | Design Value |
|---|---|
| Guardring structure | Enhances ruggedness against voltage transients and improves reliability in automotive load-dump conditions |
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns; no baking required before assembly |
| Low VF and high IFSM synergy | Delivers low conduction loss while sustaining high-energy surges - critical for compact, high-efficiency power stages |
| Matte tin plating | Ensures reliable solder joint formation per J-STD-002; compatible with lead-free and SnPb processes |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter Output Stage |
|---|---|
Use Scenario: Reverse battery connection protection in 12 V BCM power input stage. IC Role / Device Role / Timing Role: Polarity protection diode placed in series with main input rail. Use Value: Prevents damage from accidental reverse hookup using only 0.50 V forward drop - minimizing voltage loss and heat generation at 1.0 A continuous load. | Use Scenario: Freewheeling path in synchronous buck converter output stage operating at 200–500 kHz. IC Role / Device Role / Timing Role: Low-loss catch diode replacing body diode of high-side MOSFET during dead-time. Use Value: Reduces conduction loss and improves light-load efficiency due to 0.50 V VF and fast recovery (<1 ns). |
| USB-C Power Delivery Adapter | Smart Home Gateway Power Input |
Use Scenario: Output rectification in secondary-side synchronous rectifier auxiliary supply. IC Role / Device Role / Timing Role: Secondary-side Schottky rectifier in isolated flyback auxiliary winding. Use Value: Enables compact design with minimal thermal footprint (RθJA = 88 °C/W) and supports 100 % duty-cycle hold-up during brownout events. | Use Scenario: Input polarity protection for 5 V/3.3 V system rails in always-on IoT gateway. IC Role / Device Role / Timing Role: Series-connected protection diode on main power input before LDO or PMIC. Use Value: AEC-Q101 qualification ensures long-term reliability in unattended deployments; low IR (0.2 mA @ 40 V) minimizes standby leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS14300HT1G | Same DO-214AC package, 40 V VRRM, but VF = 0.55 V @ 1.0 A; RθJA = 90 °C/W; not AEC-Q101 qualified | Suitable for commercial-grade DC/DC converters but not automotive environments requiring AEC-Q101 validation | Select when cost sensitivity outweighs automotive qualification needs and 0.05 V higher VF is acceptable |
| Diodes Incorporated SB140-E3/52T | Same 40 V/1.0 A rating, VF = 0.52 V @ 1.0 A, RθJA = 85 °C/W; AEC-Q101 qualified; different marking and tape/reel code (52T vs. I) | Drop-in replacement in layout and function; identical thermal and electrical performance with minor packaging logistics variance | Preferred for dual-sourcing where same-spec AEC-Q101 compliance and DO-214AC footprint are mandatory |
Compared with NSS14300HT1G and SB140-E3/52T, SS14-6HE3_A/I offers the lowest VF (0.50 V), validated AEC-Q101 compliance, and consistent 88 °C/W thermal resistance - making it optimal for thermally constrained automotive and industrial designs demanding highest efficiency and reliability.
Availability
SS14-6HE3_A/I is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC/DC converters, and smart home gateway power inputs requiring stable component supply and long-term lifecycle support.
Supply support for SS14-6HE3_A/I 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The SSx4 family was designed specifically for high-efficiency, space-constrained power conversion in automotive and industrial systems - balancing low VF, rugged surge capability, and AEC-Q101 compliance in the DO-214AC package.
FAQ
What is the maximum junction temperature rating for SS14-6HE3_A/I?
The SS14-6HE3_A/I has a maximum junction temperature (TJ max.) of +150 °C, allowing operation in high-ambient environments such as under-hood automotive locations or enclosed industrial enclosures without forced cooling. This rating is validated per AEC-Q101 stress testing and supports full IF(AV) = 1.0 A derating up to that temperature when mounted on specified 5 mm × 5 mm copper pads.
Is SS14-6HE3_A/I RoHS-compliant and halogen-free?
Yes, SS14-6HE3_A/I is RoHS-compliant per EU Directive 2011/65/EU and meets Vishay's material categorization standard (document #99912). The "HE3" suffix confirms both RoHS compliance and AEC-Q101 qualification. It is also halogen-free, with brominated flame retardants and chlorine content below threshold limits defined in IEC 61249-2-21.
What does the "I" suffix mean in SS14-6HE3_A/I?
The "I" in SS14-6HE3_A/I denotes the preferred package code for 13-inch diameter plastic tape and reel, containing 7500 units per reel. This differs from "H", which indicates 7-inch tape and reel (1800 units). Both share identical electrical, thermal, and mechanical specifications - only packaging and quantity differ.
Can SS14-6HE3_A/I be used as a direct replacement for SS14-E3/5AT?
SS14-6HE3_A/I and SS14-E3/5AT share identical electrical characteristics, DO-214AC package, and AEC-Q101 qualification. The only differences are reel size (13″ vs. 7″), quantity (7500 vs. 7500 - note: SS14-E3/5AT is actually 7500 units per 13″ reel per Vishay doc #88746), and tape type. No PCB or schematic changes are needed; they are functionally and mechanically interchangeable.
What is the typical reverse leakage current of SS14-6HE3_A/I at 100 °C?
The SS14-6HE3_A/I exhibits a maximum DC reverse current (IR) of 6.0 mA at rated VDC = 40 V and TA = 100 °C. This value is confirmed in the Electrical Characteristics table of Vishay document #88746 and reflects worst-case leakage under elevated temperature - critical for low-power standby circuits where leakage must remain within microampere budgets.
SS14-6HE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -65°C ~ 150°C
SS14-6HE3_A/I FAQ
1.How can I place an order for SS14-6HE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SS14-6HE3_A/I 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 SS14-6HE3_A/I reliable?
The price and inventory of SS14-6HE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SS14-6HE3_A/I is usually 5 days.
3.What payment methods are accepted for SS14-6HE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SS14-6HE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SS14-6HE3_A/I?
SS14-6HE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SS14-6HE3_A/I 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 SS14-6HE3_A/I?
For technical support, including SS14-6HE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SS14-6HE3_A/I requirements.
6.How does Aetrix verify that SS14-6HE3_A/I is sourced from the original manufacturer or authorized distributors?
All SS14-6HE3_A/I 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 SS14-6HE3_A/I meets industry standards.
7.What is the process for return or replacement of SS14-6HE3_A/I?
All SS14-6HE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SS14-6HE3_A/I, 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 SS14-6HE3_A/I part is unused and in its original packaging.
Return procedure for SS14-6HE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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