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Diodes Incorporated B180-13
- Part No.:
- B180-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
B180-13.pdf
- Description:
- DIODE SCHOTTKY 80V 1A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:7,265
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Product details
Overview
B180-13 from Diodes Incorporated is a 1.0A, 80V high-voltage Schottky barrier rectifier in SMB package, featuring low forward voltage (0.79V @ 1.0A, 25°C), 30A non-repetitive surge capability, and junction-to-terminal thermal resistance of 25K/W - used for polarity protection and free-wheeling in DC-DC converters and automotive body electronics.
For engineers reviewing the B180-13 datasheet, B180-13 pinout, B180-13 application, or B180-13 equivalent, key selection criteria include forward voltage at 100°C operation, reverse leakage at elevated temperature, surge rating under JEDEC 8.3ms half-sine, thermal derating curve compliance, and UL 94V-0 flammability certification for board-level safety.
Technical Context
This Schottky rectifier employs guard ring die construction to enhance transient immunity and suppress avalanche-induced failure during inductive switching. Its low VF and fast recovery (no minority carrier storage) enable high-efficiency operation in 100–500kHz DC-DC topologies.
The device operates across –65°C to +150°C with rated average output current of 1.0A at terminal temperature (TT) = 125°C, and requires 20% current derating for capacitive loads per datasheet guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 80 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit in 48V automotive or 36V industrial bus applications. |
| IO | 1.0 A @ TT = 125°C - Continuous DC output current capability when terminals are held at 125°C; defines heatsink sizing baseline. |
| VFM | 0.79 V @ IF = 1.0A, 25°C - Forward conduction loss directly impacts power stage efficiency; drops to 0.69V at 100°C. |
| IFSM | 30 A (8.3ms half-sine) - Surge withstand level for motor startup or hot-plug events without permanent degradation. |
| RθJT | 25 K/W - Thermal resistance from junction to terminal; enables direct PCB copper pour thermal path design without discrete heatsink. |
| IRM | 0.5 mA @ 25°C, 80V - Reverse leakage determines standby power loss in battery-backed systems and affects voltage hold-up integrity. |
Pinout & Package
SMB (DO-214AA) surface-mount plastic package with cathode band marking; terminals are solder-plated and compliant with MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point during forward conduction | Connected to source-side of inductive load or input rail in polarity protection; must handle full load current and surge transients. |
| Cathode | Output current exit point during forward conduction | Connected to load or ground return; marked by band; carries same current as anode but defines reference node for reverse bias stress. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring die construction | Improves ESD and transient robustness without external TVS, reducing BOM count in automotive load-dump-prone circuits. |
| UL 94V-0 plastic case | Meets flame-retardant requirements for enclosed industrial enclosures and passenger compartment electronics. |
| Low thermal resistance (25 K/W) | Enables direct thermal coupling to PCB copper, eliminating need for thermal vias or metal-core substrates in space-constrained designs. |
| 260°C/10s solderability | Compatible with standard lead-free reflow profiles, supporting automated SMT assembly without terminal damage. |
Applications
| Automotive Body Control Module | Industrial DC-DC Converter |
|---|---|
Use Scenario: Polarity reversal protection on 12V/24V supply inputs to BCM microcontrollers and CAN transceivers. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage from incorrect battery connection or jump-start conditions. Use Value: 0.79V forward drop minimizes voltage sag during cold-crank, preserving MCU brown-out margin while handling 30A surge during load dump. | Use Scenario: Output rectification in 300kHz synchronous buck converter powering PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode providing continuous current path during high-side FET off-time. Use Value: Fast recovery and low Cj (80pF) reduce switching losses and EMI generation compared to standard PN rectifiers. |
| LED Driver Power Supply | Telecom Power Shelf |
Use Scenario: Secondary-side rectification in isolated flyback LED driver for streetlight applications. IC Role / Device Role / Timing Role: Main output rectifier converting transformer secondary AC to regulated DC for constant-current LED string. Use Value: 150°C max junction temperature supports sealed outdoor enclosure operation without forced air cooling. | Use Scenario: Input-stage reverse polarity protection in -48V telecom power shelf front-end. IC Role / Device Role / Timing Role: Series-connected blocking diode preventing catastrophic failure during hot-swap insertion errors. Use Value: 80V VRRM provides 20% margin above nominal -48V rail, ensuring long-term reliability under ripple and transient overvoltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS18 (Diodes Inc.) | Same SMB package, identical 80V VRRM, but higher VF (0.85V @ 1A) and lower IFSM (25A). | Less suitable for high-surge environments like motor drivers; acceptable in low-dI/dt LED supplies. | Select SS18 only if surge margin is not critical and cost is primary constraint. |
| SB180 (ON Semiconductor) | Same electrical specs and SMB footprint, but uses different die process resulting in 10% higher IR at 100°C (5.5mA vs 5.0mA). | May increase standby power in always-on telecom systems; otherwise functionally interchangeable. | Prefer SB180 only if qualified in existing production line with legacy ON Semi sourcing agreements. |
Compared with SS18 and SB180, B180-13 delivers the lowest forward voltage at elevated temperature and highest surge rating in its class - making it optimal for thermally constrained, high-reliability applications where efficiency and transient resilience are jointly prioritized.
Availability
B180-13 is available at Aetrix Electronics and suitable for automotive body control modules, industrial DC-DC converters, LED driver power supplies, and telecom power shelf designs requiring stable component supply and long-lifecycle support.
Supply support for B180-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
The B1xx/B series belongs to Diodes' high-voltage Schottky rectifier product line, engineered specifically for efficiency-critical, high-surge industrial and automotive power conversion where low VF and robust thermal performance are mandatory.
FAQ
What is the maximum allowable junction temperature for B180-13?
The absolute maximum junction temperature is +150°C, as specified in the DS30018 Rev. B-2 datasheet. Operation beyond this limit risks irreversible parametric shift and premature failure. Derating curves show usable current drops to ~0.6A at TT = 125°C, confirming thermal design must maintain terminal temperature below that threshold for full 1.0A rating.
Does B180-13 have a built-in TVS function?
No - B180-13 does not integrate transient voltage suppression. Its guard ring die construction improves inherent transient immunity versus standard Schottky dies, but it is not rated or tested as a TVS device. External TVS diodes remain required for ISO 7637-2 or IEC 61000-4-5 compliance in automotive or industrial environments.
Can B180-13 replace a standard PN rectifier in an existing design?
Yes, provided reverse voltage and surge requirements are met. B180-13 offers faster switching, lower VF, and zero reverse recovery charge versus PN devices - reducing heat generation and EMI. However, its higher reverse leakage (0.5mA vs <1µA for PN) may affect low-power sleep modes; verify system quiescent current impact before substitution.
Is the "-13" suffix in B180-13 related to packaging or RoHS compliance?
The "-13" suffix denotes tape-and-reel packaging per EIA-481 standard, with 3,000 units per reel. It is not a RoHS indicator - all B1xx/B devices are RoHS-compliant and halogen-free per Diodes Inc.'s material declarations, regardless of suffix. The base part number B180B already implies SMB package and full environmental compliance.
B180-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 80 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 790 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 80 V
- Capacitance @ Vr, F:
- 80pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -65°C ~ 150°C
B180-13 FAQ
1.How can I place an order for B180-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for B180-13 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 B180-13 reliable?
The price and inventory of B180-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for B180-13 is usually 5 days.
3.What payment methods are accepted for B180-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for B180-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for B180-13?
B180-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your B180-13 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 B180-13?
For technical support, including B180-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your B180-13 requirements.
6.How does Aetrix verify that B180-13 is sourced from the original manufacturer or authorized distributors?
All B180-13 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 B180-13 meets industry standards.
7.What is the process for return or replacement of B180-13?
All B180-13 units undergo pre-shipment inspection (PSI). If there is an issue with B180-13, 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 B180-13 part is unused and in its original packaging.
Return procedure for B180-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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