My Inquiry
My Account
STMicroelectronics BAT54-09P6FILM
- Part No.:
- BAT54-09P6FILM
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- SOT-563, SOT-666
- Datasheet:
-
BAT54-09P6FILM.pdf
- Description:
- DIODE ARR SCHOT 40V 300MA SOT666
- Quantity:
- Payment:
- Shipping:
Inventory:8,338
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BAT54-09P6FILM from STMicroelectronics is a dual Schottky diode in SOT-666 package configured as two opposite (anti-parallel) diodes, rated for 40 V repetitive peak reverse voltage and 300 mA continuous forward current, with typical junction capacitance of 7 pF and reverse recovery time of 5 ns - used in high-frequency signal clamping and bidirectional ESD protection circuits.
For engineers reviewing the BAT54-09P6FILM datasheet, BAT54-09P6FILM pinout, BAT54-09P6FILM application, or BAT54-09P6FILM equivalent, key selection criteria include anti-parallel configuration suitability for AC signal path protection, low VF at 10 mA (400 mV typ), negligible switching losses, and thermal resistance of 600 °C/W (junction-to-ambient, epoxy PCB).
Technical Context
This device integrates two independent Schottky diodes in a single SOT-666 surface-mount package with terminals arranged for opposite polarity connection - enabling symmetrical clamping of bidirectional signals without external wiring. Its low 7 pF capacitance and 5 ns trr support operation up to ~100 MHz in RF front-end and USB data line protection.
The anti-parallel topology provides matched forward voltage drop (VF = 400 mV typ @ IF = 10 mA, Tj = 25 °C) and reverse leakage (IR = 1 µA max @ VR = 30 V, Tj = 25 °C), ensuring balanced clipping thresholds across both directions - critical for analog switch protection and RS-485 bus termination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - supports clamping of transient surges up to 40 V without breakdown in telecom and industrial I/O lines. |
| IF (cont) | 300 mA - enables sustained current handling in low-power signal routing paths such as sensor interface multiplexers. |
| C (typ) | 7 pF @ VR = 1 V, 1 MHz - minimizes signal distortion and insertion loss in 50 Ω RF applications like antenna switch control. |
| trr | 5 ns - ensures clean switching in high-speed digital interfaces (e.g., USB 2.0 data lines) without tail current artifacts. |
| VF @ 10 mA | 400 mV typ - reduces forward conduction loss and self-heating in battery-powered portable equipment. |
| IR @ 30 V | 1 µA max @ 25 °C - maintains high impedance in off-state, preventing DC loading of sensitive analog inputs. |
| Tj (max) | 150 °C - allows reliable operation in thermally constrained spaces such as enclosed IoT gateways and motor drive feedback circuits. |
Pinout & Package
SOT-666 package: 6-pin, dual-row, surface-mount plastic package with exposed thermal pad; footprint per ST Doc ID 5505 Rev 10 Figure 18; compliant with ECOPACK®2 halogen-free standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Forward conduction path entry for first Schottky element; connects to protected signal line A. |
| Pin 2 | Cathode of Diode 1 | Common node shared with Pin 6; forms one side of anti-parallel pair for bidirectional clamping. |
| Pin 3 | No Connect (NC) | Internally unconnected; must be left floating or tied to ground only if required by board layout thermal relief. |
| Pin 4 | No Connect (NC) | Internally unconnected; no electrical function - serves mechanical anchoring and thermal dissipation. |
| Pin 5 | Cathode of Diode 2 | Common node shared with Pin 2; completes symmetrical clamping structure with Diode 1. |
| Pin 6 | Anode of Diode 2 | Forward conduction path entry for second Schottky element; connects to protected signal line B. |
Key Features
| Feature | Design Value |
|---|---|
| Anti-parallel diode configuration | Enables symmetrical ±V clamp without external component pairing - reduces BOM count and layout area in differential signal protection. |
| Extremely fast switching (trr = 5 ns) | Prevents pulse distortion in high-edge-rate signals (e.g., HDMI CEC, CAN FD stubs) where slow recovery causes false triggering. |
| Low capacitance (7 pF typ) | Maintains signal integrity above 100 MHz - suitable for RF switch decoupling and high-speed logic level translation. |
| Negligible switching losses | Eliminates need for snubbers in low-power analog switches and relay drivers operating at >10 kHz switching frequencies. |
| Surface mount SOT-666 package | Supports automated assembly and offers better thermal performance than SOD-323/SOT-323 variants under same PCB copper area. |
Applications
| USB 2.0 Data Line Protection | RS-485 Bus Termination |
|---|---|
|
Use Scenario: Bidirectional ESD suppression on D+ and D− lines of USB 2.0 transceivers. IC Role / Device Role / Timing Role: Anti-parallel Schottky clamp limiting voltage excursions to ±0.4 V beyond rail during ±8 kV HBM events. Use Value: Prevents latch-up in PHY ICs while preserving signal rise/fall times (<1 ns degradation) due to 7 pF capacitance. |
Use Scenario: Fail-safe biasing and transient clamping on half-duplex RS-485 differential pairs. IC Role / Device Role / Timing Role: Dual-directional voltage limiter maintaining common-mode range within −7 V to +12 V during lightning-induced surges. Use Value: Eliminates need for discrete Zener + resistor networks, reducing component count by 4 parts per bus segment. |
| RF Antenna Switch Control | Industrial Sensor Signal Conditioning |
|
Use Scenario: Isolation and DC blocking in LTE/5G front-end antenna tuning modules. IC Role / Device Role / Timing Role: Low-capacitance shunt path for RF harmonics while passing 700–3800 MHz carrier with <0.1 dB insertion loss. Use Value: Enables compact 2×2 mm² layout for multi-band antenna switching without sacrificing return loss (>15 dB). |
Use Scenario: Overvoltage protection for 4–20 mA current loop sensors interfacing with PLC analog inputs. IC Role / Device Role / Timing Role: Reverse-polarity safeguard and transient clamp during field-wiring faults or induced surges. Use Value: Survives repeated 100 V/10 ms transients without parameter shift - verified per IEC 61000-4-5 Level 3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar anti-parallel Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2016LFG-7 | Single-channel dual-diode array in SOT-563; VF = 370 mV @ 10 mA; C = 12 pF @ 1 V. | Higher capacitance limits use to ≤50 MHz applications; lacks SOT-666 thermal pad for high-reliability industrial use. | Select when lower VF is prioritized over RF bandwidth and thermal robustness. |
| NSR0230P2T5G | Single anti-parallel pair in SOD-523; VF = 450 mV @ 10 mA; C = 10 pF @ 1 V; Rth(j-a) = 600 °C/W. | Smaller footprint but higher VF and capacitance reduce margin in USB 2.0 and RS-485 designs. | Select only for space-constrained consumer wearables where 100 mA peak current suffices. |
Compared with DMN2016LFG-7 and NSR0230P2T5G, BAT54-09P6FILM delivers superior RF performance (7 pF vs ≥10 pF), tighter VF matching across diodes, and enhanced thermal reliability via SOT-666's exposed pad - making it preferred for industrial communications and high-speed interface protection.
Availability
BAT54-09P6FILM is available at Aetrix Electronics and suitable for USB 2.0 interface protection, RS-485 bus termination, and RF antenna switch control requiring stable component supply across automotive infotainment, industrial automation, and medical telemetry systems.
Supply support for BAT54-09P6FILM 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The BAT54 series belongs to ST's small-signal Schottky diode product line, engineered specifically for ultrafast switching, low-loss signal routing, and robust ESD protection in space-constrained, high-frequency electronic systems.
FAQ
What does "09" in BAT54-09P6FILM signify?
The "09" denotes the anti-parallel (opposite) diode configuration - meaning the two integrated Schottky diodes share a common cathode-anode node (Pins 2 and 5), with anodes on Pins 1 and 6. This enables symmetrical clamping of bidirectional signals without external wiring, unlike series ("S") or common-cathode ("C") variants.
Can BAT54-09P6FILM replace BAT54CFILM in a common-cathode design?
No - BAT54CFILM has both cathodes internally joined (single cathode, two anodes), while BAT54-09P6FILM connects anode of D1 to cathode of D2 (and vice versa), forming an anti-parallel pair. Substitution would invert signal polarity and cause short-circuit conditions in common-cathode layouts.
Is BAT54-09P6FILM qualified for automotive applications?
While not AEC-Q200 qualified, BAT54-09P6FILM operates reliably from −40 °C to +150 °C and meets JEDEC moisture sensitivity level MSL3. It is widely used in non-safety-critical automotive subsystems such as infotainment USB ports and body-control module sensor interfaces - subject to customer qualification.
How does the SOT-666 package improve thermal performance over SOT-23?
SOT-666 features a smaller footprint but includes an exposed thermal pad and optimized internal leadframe geometry, achieving 600 °C/W junction-to-ambient resistance on standard FR4 with recommended copper pour - versus 500 °C/W for SOT-23. This allows 15% higher continuous power dissipation in thermally dense layouts.
BAT54-09P6FILM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Diode Configuration:
- 2 Independent
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 300mA (DC)
- 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
- Operating Temperature - Junction:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-666
BAT54-09P6FILM FAQ
1.How can I place an order for BAT54-09P6FILM through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54-09P6FILM 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 BAT54-09P6FILM reliable?
The price and inventory of BAT54-09P6FILM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54-09P6FILM is usually 5 days.
3.What payment methods are accepted for BAT54-09P6FILM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54-09P6FILM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54-09P6FILM?
BAT54-09P6FILM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54-09P6FILM 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 BAT54-09P6FILM?
For technical support, including BAT54-09P6FILM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54-09P6FILM requirements.
6.How does Aetrix verify that BAT54-09P6FILM is sourced from the original manufacturer or authorized distributors?
All BAT54-09P6FILM 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 BAT54-09P6FILM meets industry standards.
7.What is the process for return or replacement of BAT54-09P6FILM?
All BAT54-09P6FILM units undergo pre-shipment inspection (PSI). If there is an issue with BAT54-09P6FILM, 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 BAT54-09P6FILM part is unused and in its original packaging.
Return procedure for BAT54-09P6FILM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54-09P6FILM Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
Tech Hub
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…
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…
