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Nexperia USA Inc. BAT74S,135
- Part No.:
- BAT74S,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAT74S,135.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA 6TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,992
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Product details
Overview
BAT74S from Nexperia is a planar Schottky barrier dual diode in SOT363-3 (SC-88) package, featuring two isolated dies with integrated guard ring for stress protection. It delivers 800 mV forward voltage at 100 mA, 30 V reverse voltage rating, and 5 ns reverse recovery time-enabling ultra-high-speed switching and voltage clamping in automotive power management circuits.
For engineers reviewing the BAT74S datasheet, BAT74S pinout, BAT74S application, or BAT74S equivalent, this device is selected for low-loss, high-frequency discrete rectification and protection where AEC-Q101 qualification, compact dual-diode integration, and sub-1 V conduction are critical design requirements.
Technical Context
The BAT74S integrates two independent Schottky diodes on separate silicon dies within a single TSSOP6 (SOT363-3) package, with pins 1/6 and 3/4 assigned to anode/cathode pairs of Diode 1 and Diode 2 respectively. Pins 2 and 5 are unconnected, eliminating internal coupling and enabling fully isolated operation.
Its 5 ns reverse recovery time and 10 pF capacitance at 1 V reverse bias support clean signal integrity in fast-switching applications such as flyback snubbers and I/O rail clamping. The guard ring structure enhances robustness against electrostatic discharge and transient overvoltage stress per AEC-Q101 requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage (VF) | 800 mV at 100 mA - enables low conduction loss in battery-powered and energy-sensitive circuits |
| Reverse Voltage (VR) | 30 V - supports 24 V automotive systems with margin for load dump transients |
| Reverse Recovery Time (trr) | 5 ns - ensures minimal switching loss and reduced EMI in >1 MHz DC-DC converters |
| Diode Capacitance (Cd) | 10 pF at 1 V - preserves signal edge fidelity in high-speed data line protection |
| Forward Current (IF) | 200 mA per diode - sufficient for sensor interface biasing and logic-level clamping |
| Thermal Resistance (Rth(j-a)) | 416 K/W - requires minimal PCB copper area for thermal management in space-constrained layouts |
| Junction Temperature (Tj) | 125 °C - validated for under-hood automotive environments without derating |
Pinout & Package
The BAT74S is housed in a 6-pin TSSOP6 (SOT363-3 / SC-88) surface-mount plastic package measuring 2.2 mm × 1.35 mm × 0.95 mm, optimized for automated placement and reflow soldering on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input terminal for first Schottky diode; connects to source of forward current path |
| 2 | Not Connected | No internal connection; must remain floating or grounded per layout best practice |
| 3 | Cathode (Diode 2) | Return terminal for second Schottky diode; ties to system ground or reference rail |
| 4 | Anode (Diode 2) | Input terminal for second Schottky diode; enables independent dual-path routing |
| 5 | Not Connected | No internal connection; electrically isolated from both diodes |
| 6 | Cathode (Diode 1) | Return terminal for first Schottky diode; allows separate cathode referencing |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring protection | Enhances ESD immunity and transient voltage tolerance beyond standard Schottky structures |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Low VF at high IF | 800 mV @ 100 mA reduces power dissipation in continuous conduction mode applications |
| Independent dual-diode topology | Enables asymmetric clamping or series/parallel configurations without cross-talk |
| Small SOT363-3 footprint | 2.2 mm × 1.35 mm area saves >60% board space vs. SOIC-8 dual diodes |
Applications
| Automotive Power Rail Clamping | USB Data Line Protection |
|---|---|
Use Scenario: Suppressing load-dump transients on 12 V/24 V vehicle power rails during alternator regulation faults. IC Role / Device Role / Timing Role: Dual Schottky clamp diode providing bidirectional overvoltage protection with <5 ns response. Use Value: Prevents downstream MCU and sensor IC damage while maintaining <30 V clamping threshold across temperature. | Use Scenario: Protecting USB 2.0 D+/D− lines from ESD events and hot-plug overshoot. IC Role / Device Role / Timing Role: Low-capacitance (10 pF), low-VF dual diode shunting transients to VBUS/GND. Use Value: Preserves 480 Mbps signal integrity without adding jitter or insertion loss. |
| High-Frequency DC-DC Converter Snubber | Blocking Diode in Portable Battery Management |
Use Scenario: Absorbing leakage inductance spikes in synchronous buck converter freewheel paths. IC Role / Device Role / Timing Role: Fast-recovery (5 ns) Schottky diode placed across high-side MOSFET drain-source. Use Value: Reduces voltage overshoot by >40% compared to standard PN diodes, lowering EMI filter burden. | Use Scenario: Isolating backup coin-cell supply from main Li-ion battery in wearables and medical sensors. IC Role / Device Role / Timing Role: Low-forward-drop (800 mV) blocking diode preventing reverse current drain. Use Value: Extends coin-cell service life by minimizing standby power loss in always-on monitoring modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky dual diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR20F30HT1G | Higher VF (950 mV @ 200 mA); same 30 V VR; SOD-323 package (single-diode dual-device layout) | Lacks integrated dual-diode isolation; requires two devices for independent paths | Select when board space permits discrete placement and higher VF is acceptable for cost optimization |
| Diodes Incorporated SDM10030L-7 | Lower VR (30 V same); identical trr (5 ns); larger SOT-23-6 package (2.9 mm × 1.6 mm) | Same dual-diode functionality but with 30% larger footprint and no AEC-Q101 certification | Select for industrial non-automotive designs where qualification is not required and thermal margin is prioritized |
Compared with NSR20F30HT1G and SDM10030L-7, the BAT74S uniquely combines AEC-Q101 qualification, true dual-isolated die architecture in the smallest SOT363-3 footprint, and guaranteed 5 ns trr-making it optimal for space- and reliability-critical automotive subsystems.
Availability
BAT74S is available at Aetrix Electronics and suitable for automotive power management, USB interface protection, high-frequency DC-DC snubbing, and portable battery isolation requiring stable component supply and long-term lifecycle assurance.
Supply support for BAT74S 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 essential semiconductors, with leadership in logic, discretes, and MOSFETs for automotive, industrial, and mobile markets.
The BAT74S belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for automotive-grade signal integrity, transient protection, and power efficiency in harsh-environment electronic control units.
FAQ
Is BAT74S suitable for 48 V mild-hybrid automotive systems?
No. Its 30 V maximum reverse voltage rating is insufficient for 48 V nominal systems, which experience transients exceeding 60 V during load dump. It is qualified only for 12 V and 24 V architectures where clamping thresholds remain within its 30 V limit and thermal derating is applied per the power derating curve.
Can pins 2 and 5 be used as thermal pads or grounded for improved heat dissipation?
No. Pins 2 and 5 are internally not connected and have no electrical or thermal linkage to the die or lead frame. Grounding them provides no thermal benefit and may risk solder bridging or PCB layout errors. Thermal performance relies solely on the exposed copper pad (if present) and PCB copper area under pins 1–6 per the recommended footprint.
What is the maximum simultaneous forward current when both diodes conduct?
When both diodes operate in forward conduction simultaneously, the total device current must not exceed 110 mA to maintain safe junction temperature. This limitation arises from shared thermal resistance and power dissipation limits-not electrical interaction-as confirmed in Section 8 of the datasheet.
Does BAT74S support bidirectional ESD protection on differential signal lines?
Yes. Its dual-diode configuration with independent anode–cathode pairs (pins 1–6 and 3–4) enables implementation of a bidirectional TVS-like clamp between two signal lines and ground/VCC. Each diode handles one polarity, achieving ±30 V standoff and sub-5 ns response-validated in automotive CAN and LIN bus protection reference designs.
BAT74S,135 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 Independent
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 25 V
- Operating Temperature - Junction:
- 125°C (Max)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
BAT74S,135 FAQ
1.How can I place an order for BAT74S,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT74S,135 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 BAT74S,135 reliable?
The price and inventory of BAT74S,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT74S,135 is usually 5 days.
3.What payment methods are accepted for BAT74S,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT74S,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT74S,135?
BAT74S,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT74S,135 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 BAT74S,135?
For technical support, including BAT74S,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT74S,135 requirements.
6.How does Aetrix verify that BAT74S,135 is sourced from the original manufacturer or authorized distributors?
All BAT74S,135 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 BAT74S,135 meets industry standards.
7.What is the process for return or replacement of BAT74S,135?
All BAT74S,135 units undergo pre-shipment inspection (PSI). If there is an issue with BAT74S,135, 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 BAT74S,135 part is unused and in its original packaging.
Return procedure for BAT74S,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT74S,135 Tags
-
BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
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BAV99WT1G
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