My Inquiry
My Account
Diodes Incorporated BAT54LPQ-7
- Part No.:
- BAT54LPQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BAT54LPQ-7.pdf
- Description:
- DIODE SCHOTTKY 30V 200MA 2DFN TR
- Quantity:
- Payment:
- Shipping:
Inventory:3,473
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BAT54LPQ-7 from Diodes Incorporated is a surface-mount Schottky barrier diode in an ultra-small X1-DFN1006-2 package, rated for 30 V peak reverse voltage, 200 mA average rectified current, and 240 mV forward voltage at 0.1 mA. It delivers fast 5.0 ns reverse recovery time and 2.0 µA max reverse leakage at 25 V, enabling use in high-efficiency DC-DC converters and automotive-grade reverse polarity protection circuits.
For engineers reviewing the BAT54LPQ-7 datasheet, BAT54LPQ-7 pinout, BAT54LPQ-7 application, or BAT54LPQ-7 equivalent, key selection criteria include its AEC-Q101 qualification, NiPdAu-plated terminals, 400 °C/W thermal resistance on FR-4, and cathode-bar-marked DFN layout for automated optical inspection and space-constrained PCB routing.
Technical Context
This Schottky diode uses a planar silicon structure with PN junction guard ring to suppress ESD transients and improve surge robustness. Its low 240–1000 mV VF range across 0.1–100 mA forward current enables efficient operation in low-voltage switching paths without significant conduction loss.
The device operates from –65 °C to +125 °C and exhibits 10 pF junction capacitance at 1.0 V reverse bias, supporting high-frequency rectification up to several hundred MHz in SMPS snubber and freewheeling roles. Thermal derating begins at 250 mW at 25 °C ambient, falling linearly to zero at 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage before breakdown; sets safe blocking margin in 24 V automotive systems |
| IO | 200 mA - Continuous DC current handling; supports compact power rails in portable electronics |
| VF (max) | 1.0 V @ 100 mA - Confirmed worst-case forward drop; ensures <100 mW conduction loss at rated load |
| IR (max) | 2.0 µA @ 25 V - Low leakage preserves battery life in always-on reverse-protection circuits |
| tRR | 5.0 ns - Measured reverse recovery time; enables stable operation in >10 MHz switching converters |
| PD | 250 mW @ 25 °C - Power dissipation limit on standard FR-4; defines minimum copper area for thermal relief |
| RθJA | 400 °C/W - Junction-to-ambient thermal resistance; guides heatsinking for sustained 200 mA loads |
Pinout & Package
Package: X1-DFN1006-2 - 1.0 mm × 0.6 mm, 0.5 mm height, leadless plastic case with NiPdAu-plated terminals and cathode bar marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Exposed copper pad on bottom center; requires solderable thermal pad connection for power dissipation |
| Cathode | Forward current exit / reverse blocking terminal | Top-side cathode bar marking aligns with PCB silkscreen; identifies polarity for AOI verification |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | X1-DFN1006-2 (1.0 × 0.6 mm) saves >60% board area vs. SOD-123; enables dense power module layouts |
| AEC-Q101 qualification | Validated for automotive under temperature cycling, HTRB, and ESD tests; supports PPAP documentation |
| Guard ring protection | Integrated PN junction ring suppresses ESD events ≥8 kV HBM; eliminates need for external TVS in many designs |
| Green RoHS compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb); meets IATF 16949 manufacturing requirements |
Applications
| SMPS Freewheeling Diode | Automotive Reverse Polarity Protection |
|---|---|
Use Scenario: Placed across inductor in buck converter output stage to recirculate current during high-side switch off-time. IC Role / Device Role / Timing Role: Freewheeling path for inductive energy; conducts only during discontinuous conduction mode transitions. Use Value: 5.0 ns tRR minimizes switching node ringing; 240 mV VF at light load reduces idle power loss by >30% vs. standard silicon diodes. | Use Scenario: Installed in series with vehicle battery input to prevent damage from accidental reverse cable connection. IC Role / Device Role / Timing Role: Unidirectional current gate; blocks reverse voltage while passing forward current with minimal drop. Use Value: 30 V VRRM provides 25% margin over 24 V nominal systems; AEC-Q101 rating ensures reliability across -40 °C to +125 °C engine bay environments. |
| Low-Voltage DC-DC Converter | Portable Electronics Switching Clamp |
Use Scenario: Used as synchronous rectifier or clamp diode in 3.3 V/1.8 V point-of-load regulators for microcontrollers and sensors. IC Role / Device Role / Timing Role: Fast-turn-off clamp to absorb inductive kickback from MOSFET gate drivers or signal lines. Use Value: 10 pF CT limits capacitive loading on high-speed control nodes; 200 mA IO sustains transient surges without thermal runaway. | Use Scenario: Integrated into USB-C or PMIC protection circuitry to clamp ESD transients on data or power lines. IC Role / Device Role / Timing Role: Transient voltage suppressor leveraging low VF and guard ring; clamps within 1 ns of event onset. Use Value: Guard ring structure achieves 8 kV HBM ESD immunity per AEC-Q101; eliminates need for discrete TVS in cost-sensitive wearables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SBAT54DWQ-7 | Dual-channel version in same X1-DFN1006-2 package; shared cathode configuration | Supports dual-rail clamping or complementary switching; not single-diode drop-in replacement | Select when two matched Schottky junctions are required in identical footprint |
| NSR0230P2T5G | Same 30 V/200 mA rating but in SOD-923 (1.0 × 0.6 mm) with different thermal pad design | Larger RθJA (500 °C/W); lower power handling on same PCB area | Choose only if legacy SOD-923 placement is fixed and thermal margin >50 °C is available |
Compared with SBAT54DWQ-7 and NSR0230P2T5G, BAT54LPQ-7 uniquely combines single-diode simplicity, AEC-Q101 compliance, and optimized thermal pad layout for maximum 250 mW dissipation in minimal area-making it preferred for new automotive and space-constrained industrial designs.
Availability
BAT54LPQ-7 is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial sensor node DC-DC converters, and portable medical device reverse polarity protection requiring stable component supply and full traceability.
Supply support for BAT54LPQ-7 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 and manufacturing facilities across Asia and the Americas.
The BAT54LPQ belongs to Diodes' AEC-Q101-qualified Schottky diode product line, engineered specifically for high-reliability automotive power management and compact consumer electronics where low VF, fast switching, and green compliance are mandatory.
FAQ
What is the cathode identification method for BAT54LPQ-7?
The cathode is marked by a visible bar on the top surface of the X1-DFN1006-2 package, aligned with the cathode terminal on the bottom side. This bar serves as both polarity indicator and optical recognition feature for automated assembly equipment and post-solder inspection.
Does BAT54LPQ-7 require thermal vias under the exposed pad?
Yes-thermal vias beneath the anode pad are recommended per Diodes' suggested layout to achieve the specified 400 °C/W RθJA. Without at least four 0.3 mm vias filled with solder to inner ground planes, thermal resistance increases by ≥30%, risking premature thermal shutdown at 200 mA continuous load.
Is BAT54LPQ-7 compatible with lead-free reflow profiles?
Yes-BAT54LPQ-7 is fully RoHS-compliant and qualified for standard JEDEC J-STD-020 Level 1 moisture sensitivity reflow. Its NiPdAu plating withstands peak temperatures up to 260 °C for 30 seconds, matching IPC-7095 Class 3 assembly requirements without delamination or voiding.
How does the guard ring improve ESD performance?
The integrated PN junction guard ring surrounds the active Schottky region, providing a controlled low-impedance path for ESD current to bypass the sensitive metal-semiconductor interface. This structure enables 8 kV HBM ESD rating per AEC-Q101, reducing failure risk in unshielded automotive harness interfaces.
BAT54LPQ-7 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
BAT54LPQ-7 FAQ
1.How can I place an order for BAT54LPQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54LPQ-7 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 BAT54LPQ-7 reliable?
The price and inventory of BAT54LPQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54LPQ-7 is usually 5 days.
3.What payment methods are accepted for BAT54LPQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54LPQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54LPQ-7?
BAT54LPQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54LPQ-7 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 BAT54LPQ-7?
For technical support, including BAT54LPQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54LPQ-7 requirements.
6.How does Aetrix verify that BAT54LPQ-7 is sourced from the original manufacturer or authorized distributors?
All BAT54LPQ-7 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 BAT54LPQ-7 meets industry standards.
7.What is the process for return or replacement of BAT54LPQ-7?
All BAT54LPQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAT54LPQ-7, 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 BAT54LPQ-7 part is unused and in its original packaging.
Return procedure for BAT54LPQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54LPQ-7 Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
