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Diodes Incorporated BAT54LP-7B
- Part No.:
- BAT54LP-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BAT54LP-7B.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:138,500
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Product details
Overview
BAT54LP-7B from Diodes Incorporated is a surface-mount Schottky barrier diode in X1-DFN1006-2 package, rated for 30 V peak reverse voltage, 200 mA continuous forward current, and 5.0 ns reverse recovery time. It delivers low forward voltage (240–500 mV across 0.1–100 mA), ultra-small footprint, and integrated PN junction guard ring for ESD/transient protection-used in compact DC-DC converter output rectification and USB port protection circuits.
For engineers reviewing the BAT54LP-7B datasheet, BAT54LP-7B pinout, BAT54LP-7B application, or BAT54LP-7B equivalent, key selection criteria include its 312 mW power dissipation limit, 10 pF junction capacitance at 1 V, JEDEC-qualified reliability, NiPdAu-plated terminals, and cathode-bar-marked top-side polarity identification.
Technical Context
This Schottky diode employs a planar silicon structure with a PN junction guard ring to suppress edge breakdown and improve transient robustness. Its low barrier height enables sub-500 mV forward drop at 30 mA while maintaining 2.0 µA max reverse leakage at 25 V.
The X1-DFN1006-2 package features a 0.65 mm pitch, 1.0 × 0.6 mm body, and exposed copper thermal pad (not electrically connected), enabling efficient heat transfer on FR-4 PCBs with recommended 0.70 × 0.30 mm solder pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before avalanche; sets upper limit for blocking in 3.3 V/5 V rail clamping. |
| IF | 200 mA - Continuous forward current rating; defines steady-state rectification capability in low-power SMPS outputs. |
| tRR | 5.0 ns - Measured under 10 mA → 1.0 mA transition; enables high-frequency switching (>10 MHz) without significant switching loss. |
| VF @ 10 mA | 320 mV - Typical forward voltage; reduces conduction loss vs. standard PN diodes in battery-fed signal path clamping. |
| CT @ 1 V | 10 pF - Junction capacitance at 1 V reverse bias; minimizes signal distortion in RF detector or high-speed data line protection. |
| IR @ 25 V | 2.0 µA - Max reverse leakage; ensures low standby current in always-on load-switch or backup power path applications. |
| RθJA | 400 °C/W - Thermal resistance on FR-4; requires minimal copper area for thermal management in space-constrained layouts. |
Pinout & Package
Package: X1-DFN1006-2 - 1.0 mm × 0.6 mm, 0.5 mm height, leadless, dual-terminal surface-mount package with exposed thermal pad (non-electrical). Cathode identified by bar marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Anode) | Anode connection | Connected to lower-potential node; accepts forward current flow into device; no internal connection to thermal pad. |
| Terminal 2 (Cathode) | Cathode connection | Marked with cathode bar; connects to higher-potential node during conduction; serves as primary return path in clamp/rectifier configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 240–500 mV across 0.1–100 mA range - directly reduces power loss in portable device power rails and signal-level clamping. |
| Guard ring protection | Integrated PN junction guard ring - improves ESD robustness (IEC61000-4-2 Level 4 compatible) and suppresses surface leakage under humidity stress. |
| JEDEC-qualified reliability | Qualified per AEC-Q standards for high-reliability operation - supports automotive infotainment and industrial control modules requiring extended temperature cycling (-65°C to +150°C). |
| Green RoHS compliance | Totally lead-free, halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - meets EU Directive 2015/863/EU and UL 94V-0 flammability rating. |
Applications
| USB Port ESD Protection | DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Protecting USB 2.0 data lines (D+/D−) from ±8 kV contact ESD events per IEC61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance (10 pF) bidirectional clamp diode placed between data line and ground, leveraging fast tRR to shunt transients without signal integrity degradation. Use Value: Prevents latch-up in USB transceivers while maintaining <0.3 dB insertion loss up to 480 MHz due to minimal CT and VF-induced DC offset. | Use Scenario: Synchronous rectification replacement in 3.3 V buck converter output stage delivering ≤200 mA load current. IC Role / Device Role / Timing Role: Freewheeling diode conducting during low-side switch off-time; leverages 5 ns tRR to minimize reverse recovery loss at 2 MHz switching frequency. Use Value: Achieves >92% efficiency at full load versus 87% with standard PN diode, reducing thermal rise in wearable power modules. |
| Low-Power Signal Clamping | Backup Power Path Selection |
Use Scenario: Clamping analog sensor outputs (e.g., 0–3.3 V thermistor interface) to MCU GPIO pins against overvoltage transients. IC Role / Device Role / Timing Role: Forward-biased clamp limiting input to VDD + 0.5 V; uses 240 mV VF at 0.1 mA to avoid false triggering during normal operation. Use Value: Enables direct connection without series resistor, preserving signal-to-noise ratio while meeting IEC61000-4-4 EFT immunity requirements. | Use Scenario: OR-ing diode in coin-cell backup path for real-time clock (RTC) supply, where main VCC may drop to 0 V during power loss. IC Role / Device Role / Timing Role: Anode tied to coin cell (3 V), cathode to RTC VBAT; blocks reverse current when main supply is active, conducts only during brownout. Use Value: Delivers <1 µA leakage in blocking state, extending CR2032 battery life beyond 10 years in always-on RTC applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54DW-7 | Dual-channel SOT-363 package; 30 V VRRM, 200 mA IF, but 12 pF CT and 10 ns tRR. | Requires larger board area; higher capacitance limits use in >100 MHz data lines. | Select when dual-diode configuration simplifies layout over two discrete BAT54LP-7B units. |
| NSR0230HT1G | SOD-523 package; same 30 V/200 mA rating, but 15 pF CT and 8 ns tRR; no guard ring. | Lacks PN guard ring; lower ESD robustness (HBM 8 kV vs. BAT54LP's 15 kV). | Prefer for cost-sensitive consumer wearables where ESD exposure is controlled and board space is less constrained than DFN1006. |
Compared with SBAT54DW-7 and NSR0230HT1G, BAT54LP-7B offers the smallest footprint (1.0 × 0.6 mm), lowest junction capacitance (10 pF), and highest ESD resilience-making it optimal for miniaturized USB-C port protection and high-frequency DC-DC converters where layout density and signal fidelity are critical.
Availability
BAT54LP-7B is available at Aetrix Electronics and suitable for USB port protection, DC-DC converter output rectification, low-power signal clamping, and backup power path selection requiring stable component supply across automotive infotainment, industrial IoT sensors, and portable medical devices.
Supply support for BAT54LP-7B 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, manufacturing, and sales operations across Asia, Europe, and North America.
The BAT54LP belongs to Diodes' high-reliability Schottky diode product line, engineered specifically for space-constrained, high-frequency power and signal integrity applications in automotive, industrial, and portable electronics.
FAQ
What is the thermal pad on the BAT54LP-7B package used for?
The X1-DFN1006-2 package includes an exposed copper thermal pad on the bottom surface, which is non-electrical and intended solely for thermal conduction. It must be soldered to a dedicated PCB copper pour using the recommended 0.70 × 0.30 mm pad layout to achieve the specified 400 °C/W RθJA. No electrical connection is made to this pad.
Does BAT54LP-7B meet AEC-Q200 requirements for automotive use?
BAT54LP-7B is qualified to JEDEC standards referenced in AEC-Q for high reliability, including temperature cycling (-65°C to +150°C), moisture sensitivity level 1, and robustness testing. However, the automotive-compliant variant is BAT54LPQ (separate datasheet DS30504Q), which undergoes additional AEC-Q200 stress tests and PPAP documentation.
How is cathode polarity identified on BAT54LP-7B?
Cathode polarity is marked by a visible bar on the top surface of the X1-DFN1006-2 package, aligned with Terminal 2. The bar is located at one end of the rectangular die outline and corresponds to the cathode terminal in the pinout diagram. No silkscreen or alphanumeric marking is used-only the bar serves as polarity indicator.
Can BAT54LP-7B replace BAT54C in existing designs?
No-BAT54C is a 3-pin dual common-cathode Schottky in SOT-23 package, while BAT54LP-7B is a single-diode, 2-terminal DFN. They differ in pin count, package size, thermal performance, and electrical layout. Direct replacement requires PCB redesign, though functional equivalence exists for single-diode roles if layout and thermal constraints allow.
BAT54LP-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 25 V
- Capacitance @ Vr, F:
- 10pF @ 1V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
- Operating Temperature - Junction:
- -65°C ~ 125°C
BAT54LP-7B FAQ
1.How can I place an order for BAT54LP-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54LP-7B 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 BAT54LP-7B reliable?
The price and inventory of BAT54LP-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54LP-7B is usually 5 days.
3.What payment methods are accepted for BAT54LP-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54LP-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54LP-7B?
BAT54LP-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54LP-7B 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 BAT54LP-7B?
For technical support, including BAT54LP-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54LP-7B requirements.
6.How does Aetrix verify that BAT54LP-7B is sourced from the original manufacturer or authorized distributors?
All BAT54LP-7B 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 BAT54LP-7B meets industry standards.
7.What is the process for return or replacement of BAT54LP-7B?
All BAT54LP-7B units undergo pre-shipment inspection (PSI). If there is an issue with BAT54LP-7B, 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 BAT54LP-7B part is unused and in its original packaging.
Return procedure for BAT54LP-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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