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Nexperia USA Inc. BAT54CY-QX
- Part No.:
- BAT54CY-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAT54CY-QX.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,414
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Product details
Overview
BAT54CY-QX from Nexperia is a dual Schottky barrier diode in SOT363-3 (SC-88) package with common cathodes per pair, rated for 30 V reverse voltage, 200 mA forward current, and 800 mV forward voltage at 100 mA - designed for ultra-high-speed switching and reverse polarity protection in automotive power rails.
For engineers reviewing the BAT54CY-QX datasheet, BAT54CY-QX pinout, BAT54CY-QX application, or BAT54CY-QX equivalent, this device supports AEC-Q101-qualified designs requiring low VF, low Cd (10 pF), and thermal resistance of 400 K/W (junction-to-solder point) in space-constrained PCB layouts.
Technical Context
This dual-diode configuration integrates two independent Schottky pairs sharing cathode terminals (K1/K2 for diodes 1 & 2; K3/K4 for diodes 3 & 4), enabling compact dual-channel clamping or steering without cross-coupling. Each diode exhibits 240 mV VF at 0.1 mA and maintains <2 µA IR at 25 V reverse bias.
The SOT363-3 package delivers coplanar leads and optimized thermal path via pins 4–6 solder points, supporting reflow/wave soldering per IPC-7095 guidelines. Its guard ring structure enhances ESD robustness and stress immunity per AEC-Q101 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 30 V - maximum blocking voltage per diode before breakdown; defines safe operating range in 24 V automotive systems. |
| IF (Forward Current) | 200 mA continuous - sustained current handling on FR4 PCB with standard footprint; supports moderate-power signal routing. |
| VF (Forward Voltage) | 800 mV @ 100 mA - low conduction loss enables efficient clamping and minimizes heat generation in high-frequency paths. |
| Cd (Diode Capacitance) | 10 pF @ 1 V, 1 MHz - enables >100 MHz switching performance with minimal signal distortion in RF and data-line applications. |
| IR (Reverse Current) | 2 µA @ 25 V, 25 °C - low leakage preserves signal integrity in high-impedance termination and sensing circuits. |
| Rth(j-sp) | 400 K/W - junction-to-solder-point thermal resistance confirms effective heat transfer through cathode pads (pins 4–6) during pulsed operation. |
Pinout & Package
Package: SOT363-3 (TSSOP6), 2.2 mm × 1.35 mm × 0.95 mm body, 0.65 mm lead pitch, flat lead profile with excellent coplanarity for reliable reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input terminal for first Schottky diode; connects to protected line or signal source in clamping configurations. |
| 2 | Anode (Diode 2) | Independent anode for second diode in same pair; allows dual-path steering or redundancy in safety-critical paths. |
| 3 | Common Cathode (Diodes 3 & 4) | Shared cathode node for third and fourth diodes; used in complementary dual-channel topologies. |
| 4 | Anode (Diode 3) | Anode for third diode; paired with pin 3 to form second independent Schottky pair. |
| 5 | Anode (Diode 4) | Anode for fourth diode; completes dual-pair architecture enabling four discrete Schottky functions in one package. |
| 6 | Common Cathode (Diodes 1 & 2) | Shared cathode for first two diodes; provides low-inductance return path for fast-switching current loops. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 240 mV @ 0.1 mA - reduces power loss and improves efficiency in low-current bias and sensing applications. |
| Ultra-small SMD package | SOT363-3 footprint (2.2 × 1.35 mm) - saves >60% board area vs. SOIC-8 equivalents while maintaining thermal reliability. |
| AEC-Q101 qualification | Qualified for automotive use - ensures long-term stability under -55 °C to +150 °C ambient and mechanical shock conditions. |
| Integrated guard ring | On-chip stress protection - suppresses edge leakage and prevents premature breakdown during voltage transients. |
Applications
| USB Data Line Protection | Automotive CAN Bus Clamping |
|---|---|
|
Use Scenario: Bidirectional ESD protection on USB 2.0 D+ and D− lines in infotainment head units. IC Role / Device Role / Timing Role: Dual Schottky clamping diode providing low-capacitance (<10 pF), low-VF path to VBUS and GND during ESD events. Use Value: Prevents signal degradation at 480 Mbps while meeting IEC 61000-4-2 Level 4 (±15 kV air) without adding series impedance. |
Use Scenario: Transient voltage suppression on CAN_H and CAN_L lines in body control modules. IC Role / Device Role / Timing Role: Dual-channel bidirectional clamp limiting bus voltage excursions to ±30 V during load dump or inductive kick. Use Value: Maintains CAN FD timing integrity by limiting clamping response time to <1 ns and preserving differential impedance. |
| LVDS Receiver Input Protection | Reverse Polarity Input Protection |
|
Use Scenario: Input stage protection for LVDS receivers in ADAS camera links exposed to EMI and hot-plug events. IC Role / Device Role / Timing Role: Low-Cd Schottky pair shunting overvoltage transients away from sensitive input transistors without loading the 100 Ω differential line. Use Value: Enables clean 1.0 Gbps signaling by holding capacitance asymmetry below 0.5 pF between D+ and D− paths. |
Use Scenario: Input polarity safeguard for 12 V power supplies feeding microcontrollers in telematics gateways. IC Role / Device Role / Timing Role: Common-cathode dual diode configured as OR-ing element to block reverse current while passing forward current with <800 mV drop. Use Value: Eliminates need for external MOSFET-based protection, reducing BOM count and failure modes in always-on subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR20F30HT1G | Single dual-diode pair (2 anodes + 1 common cathode); no quad-anode configuration; VF = 450 mV @ 100 mA. | Limited to two-diode topologies; lacks independent dual-cathode structure for four-diode routing. | Select when only one common-cathode pair is required and board layout favors smaller 2-pin cathode pad. |
| Vishay VS-2EDH01HM3/85A | Higher VR = 40 V; VF = 520 mV @ 100 mA; SOD-323 package; not AEC-Q101 qualified. | Not automotive-qualified; larger footprint (1.7 × 1.3 mm) and higher thermal resistance (500 K/W). | Prefer for industrial non-automotive designs needing higher reverse margin but accepting lower reliability assurance. |
Compared with NSR20F30HT1G and VS-2EDH01HM3/85A, BAT54CY-QX uniquely supports four independent Schottky functions in one AEC-Q101-qualified SOT363-3 package, enabling compact dual-channel protection with matched VF and Cd across all diodes.
Availability
BAT54CY-QX is available at Aetrix Electronics and suitable for automotive infotainment systems, CAN bus nodes, LVDS camera interfaces, and reverse-polarity-protected power inputs requiring stable component supply and full traceability.
Supply support for BAT54CY-QX 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The BAT54CY-QX belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for space-constrained, high-speed automotive signal integrity and power rail protection applications.
FAQ
What is the maximum junction temperature for BAT54CY-QX?
The absolute maximum junction temperature is 150 °C, validated per IEC 60134 limiting values. Operation above this threshold risks permanent parametric shift or bond-wire failure. Thermal design must ensure Rth(j-a) ≤ 450 K/W in free air or leverage solder-point cooling (Rth(j-sp) = 400 K/W) via pins 4–6.
Can BAT54CY-QX be used in bidirectional TVS applications?
No - BAT54CY-QX is a unidirectional Schottky diode array, not a bidirectional TVS. It clamps only in forward conduction (anode-to-cathode) and blocks in reverse. For bidirectional transient suppression, a dedicated TVS like PESD5V0S1BA must be used alongside it.
Is the marking code 'K8%' consistent across manufacturing lots?
Yes - 'K8' is the fixed die code for BAT54CY-QX; '%' is a placeholder for the manufacturing site identifier (e.g., 'K8A' for Nijmegen, 'K8B' for Bangkok). All units marked 'K8%' are functionally identical and AEC-Q101 qualified regardless of site code.
How does the guard ring improve reliability in automotive environments?
The integrated guard ring reduces electric field crowding at the silicon periphery, suppressing surface leakage and preventing premature avalanche under repetitive transients (e.g., ISO 7637-2 pulse 5a). This extends lifetime beyond 15 years in under-hood temperature cycling per AEC-Q101 stress test protocols.
BAT54CY-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 2 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 2 µA @ 25 V
- Operating Temperature - Junction:
- 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BAT54CY-QX FAQ
1.How can I place an order for BAT54CY-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54CY-QX 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 BAT54CY-QX reliable?
The price and inventory of BAT54CY-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54CY-QX is usually 5 days.
3.What payment methods are accepted for BAT54CY-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54CY-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54CY-QX?
BAT54CY-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54CY-QX 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 BAT54CY-QX?
For technical support, including BAT54CY-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54CY-QX requirements.
6.How does Aetrix verify that BAT54CY-QX is sourced from the original manufacturer or authorized distributors?
All BAT54CY-QX 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 BAT54CY-QX meets industry standards.
7.What is the process for return or replacement of BAT54CY-QX?
All BAT54CY-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAT54CY-QX, 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 BAT54CY-QX part is unused and in its original packaging.
Return procedure for BAT54CY-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54CY-QX 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
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