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Vishay General Semiconductor - Diodes Division B330LA-E3/61T
- Part No.:
- B330LA-E3/61T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B330LA-E3/61T.pdf
- Description:
- DIODE SCHOTTKY 30V 3A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:1,470
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Product details
Overview
B330LA-E3/61T from Vishay General Semiconductor is a high-current-density surface-mount Schottky rectifier in SMA (DO-214AC) package, rated for 30 V repetitive peak reverse voltage, 3.0 A average forward current, and 65 A non-repetitive surge current; it delivers 0.50 V forward voltage at 3.0 A and operates up to 150 °C junction temperature, widely used in DC/DC converters and polarity protection circuits.
For engineers reviewing the B330LA-E3/61T datasheet, B330LA-E3/61T pinout, B330LA-E3/61T application, or B330LA-E3/61T equivalent, key selection considerations include its low VF (0.50 V), MSL Level 1 rating, guardring-enabled overvoltage robustness, and compatibility with automated SMT placement on aluminum substrates.
Technical Context
This Schottky rectifier uses a planar epitaxial construction with integrated guardring to suppress edge breakdown and sustain dV/dt up to 10,000 V/μs. Its thermal resistance RθJA is 110 °C/W (junction-to-ambient, on FR-4) and RθJL is 28 °C/W (junction-to-lead), enabling high-power-density operation when mounted on thermally enhanced PCBs or aluminum substrates.
The device exhibits typical junction capacitance of ~100 pF at 4 V reverse bias (f = 1 MHz), supporting high-frequency switching in buck converters and freewheeling paths. It is not AEC-Q101 qualified and is specified for commercial-grade use only, with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking capability; defines safe operating limit in DC/DC output rectification |
| IF(AV) | 3.0 A - Continuous forward current rating at TL (lead temperature); determines minimum trace width and copper area needed |
| VF @ 3.0 A | 0.50 V - Low conduction loss enables >92% efficiency in 5 V-output converters at full load |
| IFSM | 65 A - Peak surge withstand for 8.3 ms half-sine; supports inrush and fault-current handling without failure |
| TJ max. | 150 °C - Maximum junction temperature; sets thermal design margin for enclosure and heatsinking requirements |
| dV/dt | 10,000 V/μs - High voltage transient immunity prevents false turn-on during fast-switching node transitions |
| RθJL | 28 °C/W - Low junction-to-lead thermal resistance enables effective heat transfer to PCB copper or metal-core board |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, single-diode configuration; cathode indicated by color band; RoHS-compliant matte tin-plated leads; MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., switch node in synchronous buck); must be routed with low-inductance path |
| Cathode | Forward current exit point | Connected to higher-potential rail (e.g., output capacitor positive); marked by visible band; ties to thermal pad in layout |
Key Features
| Feature | Design Value |
|---|---|
| Guardring structure | Prevents premature edge breakdown under high dV/dt or localized overstress, improving long-term reliability in noisy environments |
| Low VF (0.50 V @ 3 A) | Reduces conduction loss by ~35% vs. comparable silicon diodes, directly lowering thermal load and system cooling requirements |
| MSL Level 1 rating | Enables single-pass reflow without baking; compatible with standard J-STD-020 industrial assembly processes |
| High IFSM (65 A) | Withstands repeated startup surges and short-circuit transients without parametric shift or bond-wire fusing |
Applications
| DC/DC Converter Output Rectification | Polarity Protection |
|---|---|
Use Scenario: Used as secondary-side synchronous rectifier replacement or freewheeling diode in 3–12 V input buck converters delivering up to 3 A. IC Role / Device Role / Timing Role: Unidirectional current path enabling efficient energy transfer during low-side switch off-time. Use Value: 0.50 V VF minimizes power loss and improves light-load efficiency versus silicon alternatives. | Use Scenario: Placed in series with power input to prevent damage from reversed battery or supply connections. IC Role / Device Role / Timing Role: Forward-conducting protection element that blocks reverse current while adding minimal voltage drop. Use Value: Low 0.50 V forward drop preserves >95% of nominal supply voltage at full rated current. |
| Low-Voltage Inverter Freewheeling | Industrial Control Power Rails |
Use Scenario: Provides flyback path for inductive loads (e.g., solenoids, relays) driven by MOSFET H-bridges in 24 V systems. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback energy during switch turn-off transitions. Use Value: 65 A IFSM rating ensures survival under worst-case inductive energy dump without degradation. | Use Scenario: Supplies auxiliary 5 V or 3.3 V rails in programmable logic controllers (PLCs) and sensor interface modules. IC Role / Device Role / Timing Role: Input-stage rectifier converting unregulated AC or DC input to stable DC bus prior to LDO regulation. Use Value: 150 °C TJ max and RθJL = 28 °C/W support continuous operation in sealed enclosures with limited airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS33-E3/57T (Vishay) | Same SMA package, identical 30 V VRRM and 3.0 A IF(AV), but VF = 0.52 V @ 3 A (slightly higher conduction loss) | No functional difference in DC/DC or polarity protection; minor efficiency trade-off at high ambient temperatures | Select SS33-E3/57T if B330LA-E3/61T is unavailable and <0.02 V VF increase is acceptable |
| SB330-E3/57T (Vishay) | SMA package, same 30 V/3.0 A ratings, but VF = 0.55 V @ 3 A and higher IR (1.0 mA vs. 0.5 mA) | Higher leakage may affect ultra-low-power standby performance; less suitable for battery-backed systems | Prefer SB330-E3/57T only where cost is primary and leakage sensitivity is negligible |
Compared with SS33-E3/57T and SB330-E3/57T, the B330LA-E3/61T offers the lowest VF (0.50 V) and lowest IR (0.5 mA) in the Vishay 3 A/30 V SMA Schottky family, making it optimal for efficiency-critical and low-leakage applications such as portable DC/DC stages and always-on power rails.
Availability
B330LA-E3/61T is available at Aetrix Electronics and suitable for DC/DC converters, polarity protection circuits, and industrial control power rails requiring stable component supply, consistent lead-time visibility, and full traceability.
Supply support for B330LA-E3/61T 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 high-reliability, high-efficiency power solutions.
The B330LA-E3/61T belongs to Vishay's high-current-density Schottky rectifier product line, engineered for compact, high-efficiency power conversion in space-constrained commercial and industrial applications.
FAQ
What is the maximum junction temperature rating for the B330LA-E3/61T?
The B330LA-E3/61T has a maximum junction temperature (TJ max.) of +150 °C. This rating allows operation in thermally demanding environments such as enclosed industrial controls or automotive under-hood auxiliary supplies, provided PCB thermal design meets RθJL = 28 °C/W and sufficient copper area is allocated. Derating curves in the datasheet define safe IF(AV) limits above 75 °C ambient.
Does the B330LA-E3/61T have AEC-Q101 qualification?
No, the B330LA-E3/61T is explicitly stated as not AEC-Q101 qualified in the Vishay datasheet. It is designated for commercial-grade applications only. For automotive applications requiring AEC-Q101 compliance, engineers should consider qualified alternatives such as Vishay's VS-3EYH03-M3/5BT or equivalent qualified Schottky rectifiers-not the B330LA-E3/61T.
What does the "E3/61T" suffix indicate in B330LA-E3/61T?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards. The "61T" indicates packaging in 7-inch diameter plastic tape and reel, with a base quantity of 1800 units per reel-standard for high-volume SMT assembly lines using pick-and-place equipment.
How does the guardring feature improve reliability of the B330LA-E3/61T?
The guardring in the B330LA-E3/61T suppresses electric field crowding at the die periphery, preventing premature avalanche breakdown under high dV/dt stress or localized overvoltage events. This extends operational life in noisy switching environments like motor drives and inverters, and maintains stable VF and IR parameters across temperature and time-verified per Vishay's accelerated life testing protocols.
Can the B330LA-E3/61T replace a silicon rectifier in an existing 3 A, 30 V design?
Yes, the B330LA-E3/61T can directly replace a silicon rectifier in a 3 A/30 V design, provided layout accommodates its SMA (DO-214AC) footprint and thermal path. Its 0.50 V VF reduces conduction loss by ~0.7 W versus a typical 1.1 V silicon diode at 3 A, lowering junction temperature and potentially eliminating heatsinking. Verify surge and leakage requirements remain within spec for the target application.
B330LA-E3/61T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -65°C ~ 150°C
B330LA-E3/61T FAQ
1.How can I place an order for B330LA-E3/61T through Aetrix?
Please submit a Request for Quotation (RFQ) for B330LA-E3/61T 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 B330LA-E3/61T reliable?
The price and inventory of B330LA-E3/61T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B330LA-E3/61T is usually 5 days.
3.What payment methods are accepted for B330LA-E3/61T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B330LA-E3/61T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B330LA-E3/61T?
B330LA-E3/61T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B330LA-E3/61T 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 B330LA-E3/61T?
For technical support, including B330LA-E3/61T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B330LA-E3/61T requirements.
6.How does Aetrix verify that B330LA-E3/61T is sourced from the original manufacturer or authorized distributors?
All B330LA-E3/61T 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 B330LA-E3/61T meets industry standards.
7.What is the process for return or replacement of B330LA-E3/61T?
All B330LA-E3/61T units undergo pre-shipment inspection (PSI). If there is an issue with B330LA-E3/61T, 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 B330LA-E3/61T part is unused and in its original packaging.
Return procedure for B330LA-E3/61T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
B330LA-E3/61T Tags
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