My Inquiry
My Account
STMicroelectronics BAT41JFILM
- Part No.:
- BAT41JFILM
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BAT41JFILM.pdf
- Description:
- DIODE SCHOTTKY 100V 200MA SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,550
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BAT41JFILM from STMicroelectronics is a single low-capacitance Schottky diode in SOD-323 package, rated for 100 V repetitive peak reverse voltage and 200 mA continuous forward current, with typical junction capacitance of 3 pF at 1 V and forward voltage drop of 450 mV at 1 mA - optimized for high-speed switching in RF detector and sample-and-hold circuits.
For engineers reviewing the BAT41JFILM datasheet, BAT41JFILM pinout, BAT41JFILM application, or BAT41JFILM equivalent, key selection criteria include ultra-low capacitance (3 pF typ), negligible reverse recovery time, sub-1 µA leakage at 50 V/25 °C, and thermal resistance of 550 °C/W on epoxy PCB - critical for signal integrity in portable wireless receivers and precision analog front-ends.
Technical Context
The BAT41JFILM implements a planar Schottky barrier structure enabling near-zero reverse recovery charge and minimal stored charge, supporting operation up to 1 GHz in small-signal detection. Its low Cj (3–10 pF) and fast switching are achieved without compromising forward conduction efficiency.
Designed for surface-mount use on FR4 boards with recommended pad layout, it operates across –65 °C to +150 °C junction temperature range and maintains stable IR < 0.1 µA at VR = 50 V/25 °C and < 20 µA at 100 °C - essential for battery-powered sensor nodes requiring long-term leakage immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - supports input protection and clamping in 48 V industrial bus interfaces without breakdown |
| IF | 200 mA continuous - sufficient for biasing low-power RF amplifiers and driving LED indicators |
| Cj (typ) | 3 pF at 1 V - enables minimal signal distortion in 900 MHz ISM band detector stages |
| VF | 450 mV at 1 mA - ensures low-voltage drop in precision voltage reference sampling paths |
| Tj(max) | 150 °C - allows reliable operation in sealed enclosures with limited airflow |
| IR | 0.1 µA at 50 V/25 °C - preserves accuracy in high-impedance analog measurement circuits |
| Rth(j-a) | 550 °C/W - defines thermal derating on standard SOD-323 epoxy PCB layouts |
Pinout & Package
Package: SOD-323 - ultra-small surface-mount plastic case (1.52 × 1.11 mm footprint), lead-free, UL94 V0 compliant, suitable for automated placement in space-constrained IoT modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node in clamping or rectification path; requires minimum 0.25 mm trace width for 200 mA |
| Cathode | Forward current exit / reverse blocking terminal | Typically tied to ground or supply rail; serves as reference node for RF detector output |
Key Features
| Feature | Design Value |
|---|---|
| Low junction capacitance | 3 pF typ. at 1 V - preserves bandwidth in 868/915 MHz receiver front-end detectors |
| Negligible switching losses | No minority-carrier storage - eliminates tail current in fast pulse demodulation |
| Extremely fast switching | Sub-nanosecond reverse recovery - supports >100 MHz digital signal routing isolation |
| Low leakage current | 0.1 µA max at 50 V/25 °C - prevents drift in high-Z sample-and-hold capacitors |
| Surface mount compatibility | SOD-323 footprint - fits 2.0 × 1.25 mm PCB area budget in wearable sensor PCBs |
Applications
| RF Signal Detector | Precision Sample-and-Hold |
|---|---|
Use Scenario: Demodulating amplitude-modulated RF signals in sub-GHz ISM band receivers. IC Role / Device Role / Timing Role: Schottky detector diode converting RF envelope to DC baseband voltage. Use Value: 3 pF capacitance minimizes RF shunting loss; 450 mV VF ensures sensitivity down to –20 dBm input. | Use Scenario: Holding analog sensor output during ADC conversion in low-power data loggers. IC Role / Device Role / Timing Role: Low-leakage clamp diode isolating hold capacitor from source impedance. Use Value: 0.1 µA reverse leakage at 25 °C limits voltage droop to < 1 mV/s on 10 nF capacitor. |
| High-Speed Logic Clamp | Low-Voltage Power OR-ing |
Use Scenario: Protecting FPGA I/O pins from transient overvoltage in industrial control interfaces. IC Role / Device Role / Timing Role: Bidirectional ESD clamp with fast turn-on and minimal parasitic capacitance. Use Value: 3 pF capacitance avoids signal edge degradation on 50 MHz clock lines. | Use Scenario: Selecting between dual power sources (e.g., battery and USB) in portable medical devices. IC Role / Device Role / Timing Role: Low-VF OR-ing diode minimizing voltage drop in 3.3 V supply path. Use Value: 450 mV VF at 1 mA reduces dropout vs. silicon diodes by >500 mV. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSR0230HT1G | Lower VRRM (30 V), higher Cj (12 pF typ.), same SOD-323 package | Restricted to ≤3.3 V logic clamping; unsuitable for 48 V bus sensing | Select only when reverse voltage < 30 V and capacitance tolerance >10 pF |
| BAT54C,215 | Common-cathode dual configuration, 30 V VRRM, 10 pF Cj, SOT-23 package | Requires board redesign for dual-diode functions; larger footprint than SOD-323 | Choose when dual-channel clamping is needed and board space permits SOT-23 |
Compared with NSR0230HT1G and BAT54C,215, BAT41JFILM uniquely delivers 100 V rating with 3 pF capacitance in SOD-323 - enabling compact, high-voltage RF detection where alternatives either sacrifice voltage headroom or increase parasitic loading.
Availability
BAT41JFILM is available at Aetrix Electronics and suitable for RF detector design, precision analog sampling, high-speed logic clamping, and low-voltage OR-ing applications requiring stable component supply and consistent parametric performance across production lots.
Supply support for BAT41JFILM 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 microcontrollers, power ICs, sensors, and discrete components for industrial, automotive, and consumer markets.
The BAT41 series belongs to ST's low-capacitance Schottky diode product line, engineered specifically for high-frequency signal detection, RF envelope demodulation, and low-leakage analog switching - targeting space- and power-constrained wireless and sensor-edge applications.
FAQ
What is the maximum reverse voltage rating for BAT41JFILM?
The BAT41JFILM has a repetitive peak reverse voltage (VRRM) rating of 100 V, verified per Table 2 of STMicroelectronics Doc ID 12633 Rev 2. This rating applies under standard test conditions at Tj = 25 °C and defines the maximum sustained reverse bias before breakdown occurs.
Does BAT41JFILM have a specified junction-to-ambient thermal resistance?
Yes - Rth(j-a) is 550 °C/W for BAT41JFILM in SOD-323 package mounted on an epoxy FR4 PCB with recommended pad layout, as stated in Table 3 of the official datasheet. This value assumes standard JEDEC test conditions and defines safe power dissipation limits.
Is BAT41JFILM suitable for RF detector applications above 500 MHz?
Yes - its typical junction capacitance of 3 pF at 1 V and negligible reverse recovery time enable effective operation in 868 MHz and 915 MHz ISM band detectors, as confirmed by Figure 5 (Cj vs. VR) and dynamic characterization in Section 5 of the datasheet.
What marking appears on the BAT41JFILM device body?
The BAT41JFILM is marked "41" on its top surface, per Table 11 in the STMicroelectronics datasheet. This two-character marking distinguishes it from other BAT41 variants (e.g., "Z41" for BAT41ZFILM in SOD-123) and is laser-etched for automated optical inspection.
BAT41JFILM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 nA @ 50 V
- Capacitance @ Vr, F:
- 10pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
- Operating Temperature - Junction:
- 150°C (Max)
BAT41JFILM FAQ
1.How can I place an order for BAT41JFILM through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT41JFILM 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 BAT41JFILM reliable?
The price and inventory of BAT41JFILM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT41JFILM is usually 5 days.
3.What payment methods are accepted for BAT41JFILM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT41JFILM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT41JFILM?
BAT41JFILM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT41JFILM 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 BAT41JFILM?
For technical support, including BAT41JFILM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT41JFILM requirements.
6.How does Aetrix verify that BAT41JFILM is sourced from the original manufacturer or authorized distributors?
All BAT41JFILM 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 BAT41JFILM meets industry standards.
7.What is the process for return or replacement of BAT41JFILM?
All BAT41JFILM units undergo pre-shipment inspection (PSI). If there is an issue with BAT41JFILM, 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 BAT41JFILM part is unused and in its original packaging.
Return procedure for BAT41JFILM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT41JFILM 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
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
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…
