My Inquiry
My Account
STMicroelectronics BAT54JFILM
- Part No.:
- BAT54JFILM
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BAT54JFILM.pdf
- Description:
- DIODE SCHOTTKY 40V 300MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:78,451
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BAT54JFILM from STMicroelectronics is a single Schottky barrier diode in SOD-323 package, rated for 40 V repetitive peak reverse voltage and 300 mA continuous forward current, with 7 pF typical junction capacitance and 5 ns reverse recovery time, used in high-speed polarity protection and signal clamping circuits in portable power management.
For engineers reviewing the BAT54JFILM datasheet, BAT54JFILM pinout, BAT54JFILM application, or BAT54JFILM equivalent, key selection criteria include low forward voltage (400 mV at 10 mA), negligible switching losses, ECOPACK®2 compliance, and thermal resistance of 550 °C/W on epoxy PCB with recommended pad layout.
Technical Context
The BAT54JFILM implements a planar Schottky barrier structure optimized for fast switching in low-voltage DC paths. Its 40 V VRRM rating supports USB and 3.3 V/5 V rail protection, while its 5 ns trr enables use in >100 MHz signal routing and RF detector applications.
Thermal performance is defined by Rth(j-a) = 550 °C/W under standard SOD-323 mounting conditions, and junction temperature is rated from –40 °C to +150 °C, enabling operation in automotive cabin and industrial control environments without derating below 100 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Supports reverse blocking in 3.3 V and 5 V logic/power rails without breakdown |
| IF (continuous) | 300 mA - Sustains full-rated current in compact SOD-323 footprint without thermal runaway |
| VF @ 10 mA | 400 mV typ - Minimizes conduction loss in battery-fed signal path protection |
| C @ 1 V | 7 pF typ - Enables <1 GHz small-signal integrity in RF front-end clamp circuits |
| trr | 5 ns - Ensures clean edge transitions in 10–50 MHz clock line clamping |
| Tj max | +150 °C - Allows placement near heat sources in sealed industrial modules |
| IR @ 30 V, 25 °C | 1 µA max - Prevents leakage-induced offset in precision analog input protection |
Pinout & Package
SOD-323 surface-mount package: 1.17 mm × 1.45 mm body, 0.25–0.44 mm lead width, 0.1–0.25 mm thickness, JEDEC-compliant footprint with 1.11–1.45 mm E dimension and 2.3–2.7 mm H height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to protected signal source or higher-potential rail in reverse polarity guard |
| Cathode | Forward current exit / reverse blocking node | Connected to system ground or lower-potential rail; blocks reverse current above 40 V |
Key Features
| Feature | Design Value |
|---|---|
| Low VF at low IF | 240 mV at 0.1 mA - Enables effective clamping of micro-power sensor outputs without loading |
| Negligible switching losses | No minority carrier storage - Eliminates tail current in PWM-driven load switches |
| ECOPACK®2 compliance | Lead-free, halogen-free, RoHS-compliant construction - Meets IPC-J-STD-020 moisture sensitivity level 1 |
| Extremely fast switching | 5 ns trr with 10 mA test condition - Preserves signal integrity in 20+ MHz digital I/O protection |
Applications
| USB Port Polarity Protection | RF Signal Detector Clamp |
|---|---|
Use Scenario: Preventing damage from reversed USB cable insertion in portable chargers and OTG adapters. IC Role / Device Role / Timing Role: Single Schottky diode placed in series with VBUS line to block reverse current flow. Use Value: 400 mV forward drop limits voltage loss to <2% at 5 V, preserving USB 2.0 compliance. | Use Scenario: Clamping RF envelope detector output in 2.4 GHz ISM-band receivers. IC Role / Device Role / Timing Role: Low-capacitance (7 pF) anode-to-cathode clamp limiting peak detector swing. Use Value: 5 ns trr prevents distortion of 10–50 MHz demodulated baseband signals. |
| Low-Power Sensor Interface Protection | Logic-Level Translation Clamp |
Use Scenario: Guarding analog inputs of ultra-low-power environmental sensors (e.g., I²C temperature nodes). IC Role / Device Role / Timing Role: Anode tied to sensor output, cathode to 3.3 V rail, shunting overvoltage transients. Use Value: 1 µA max IR at 25 °C avoids introducing measurable offset into nA-level sensor bias currents. | Use Scenario: Level-shifting 1.8 V GPIO to 3.3 V domain in FPGA configuration interfaces. IC Role / Device Role / Timing Role: Cathode connected to 3.3 V, anode to 1.8 V signal, clamping negative excursions. Use Value: 240 mV VF at 0.1 mA ensures sub-100 µA loading on weak-drive logic outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSR0230HT1G | Same SOD-323 package; 30 V VRRM, 200 mA IF, 12 pF C | Lower voltage rating restricts use to ≤3.3 V systems; higher capacitance reduces RF bandwidth | Select when cost sensitivity outweighs 40 V margin and 7 pF requirement |
| SD103AW-TP | SOD-323; 40 V VRRM, 200 mA IF, 10 pF C, VF = 460 mV @ 10 mA | Higher VF increases conduction loss; identical trr and thermal rating | Prefer for legacy designs where SD103AW footprint compatibility is mandatory |
Compared with NSR0230HT1G and SD103AW-TP, BAT54JFILM delivers superior 40 V robustness, lowest capacitance (7 pF), and lowest VF (400 mV @ 10 mA), making it optimal for high-frequency, low-loss 3.3 V/5 V interface protection where signal integrity and efficiency are critical.
Availability
BAT54JFILM is available at Aetrix Electronics and suitable for USB port protection, RF detector clamping, and low-power sensor interface guarding requiring stable component supply across consumer, industrial, and medical electronics programs.
Supply support for BAT54JFILM 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MCU, power, and sensing solutions for industrial, automotive, and consumer markets.
The BAT54 series belongs to ST's general-purpose discrete portfolio, engineered specifically for high-speed, low-loss signal and power path protection in space-constrained portable and embedded systems.
FAQ
What is the maximum soldering temperature for BAT54JFILM?
The maximum soldering temperature is 260 °C, per Table 2 in the official datasheet. This applies to a single 10-second exposure during reflow or hand-soldering, consistent with IPC-J-STD-020 standard for SOD-323 packages. Exceeding this temperature risks die attach degradation and parametric shift.
Does BAT54JFILM support automotive-grade temperature operation?
Yes - its specified operating junction temperature range is –40 °C to +150 °C, meeting AEC-Q101 stress test requirements for discrete semiconductors. While not officially AEC-Q101 certified, its thermal and electrical specs align with Grade 2 (–40 °C to +105 °C ambient) and Grade 3 (–40 °C to +125 °C ambient) automotive subsystems.
How does BAT54JFILM differ from BAT54AFILM?
BAT54JFILM is a single-diode variant in SOD-323 package with marking "86", whereas BAT54AFILM is a common-anode dual-diode in SOT-23 package marked "D84". They share identical electrical specs but differ in configuration, package size, thermal resistance (550 vs. 500 °C/W), and pin count - BAT54JFILM has two terminals, BAT54AFILM has three.
Is BAT54JFILM suitable for RF detector applications above 100 MHz?
Yes - its 7 pF typical junction capacitance and 5 ns reverse recovery time enable effective clamping up to ~500 MHz in envelope detector circuits. Measured C vs. VR data (Figure 5) confirms capacitance remains ≤9 pF at 0–5 V reverse bias, supporting broadband matching in 2.4 GHz front-ends when used with appropriate layout.
BAT54JFILM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 300mA
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 100 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 30 V
- Capacitance @ Vr, F:
- 10pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- -40°C ~ 150°C
BAT54JFILM FAQ
1.How can I place an order for BAT54JFILM through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54JFILM 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 BAT54JFILM reliable?
The price and inventory of BAT54JFILM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54JFILM is usually 5 days.
3.What payment methods are accepted for BAT54JFILM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54JFILM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54JFILM?
BAT54JFILM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54JFILM 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 BAT54JFILM?
For technical support, including BAT54JFILM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54JFILM requirements.
6.How does Aetrix verify that BAT54JFILM is sourced from the original manufacturer or authorized distributors?
All BAT54JFILM 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 BAT54JFILM meets industry standards.
7.What is the process for return or replacement of BAT54JFILM?
All BAT54JFILM units undergo pre-shipment inspection (PSI). If there is an issue with BAT54JFILM, 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 BAT54JFILM part is unused and in its original packaging.
Return procedure for BAT54JFILM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54JFILM 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
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…
