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Diodes Incorporated BAW156T-7-F
- Part No.:
- BAW156T-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-523
- Datasheet:
-
BAW156T-7-F.pdf
- Description:
- DIODE ARRAY GP 85V 125MA SOT-523
- Quantity:
- Payment:
- Shipping:
Inventory:309
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Product details
Overview
BAW156T-7-F from Diodes Incorporated is a surface-mount ultra-low-leakage dual diode in SOT-523 package, rated for 85 V peak reverse voltage, 125 mA forward current per diode, and 5.0 nA max leakage at 75 V and 25°C - used in precision signal clamping and ESD protection circuits in automotive sensor interfaces.
For engineers reviewing the BAW156T-7-F datasheet, BAW156T-7-F pinout, BAW156T-7-F application, or BAW156T-7-F equivalent, key selection criteria include reverse leakage stability over temperature, dual-diode symmetry for balanced clamping, SOT-523 footprint compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This dual diode integrates two identical, isolated silicon junctions in a single ultra-small SOT-523 package, enabling compact bidirectional ESD protection or precision DC-level clamping without cross-coupling. Its 2 pF typical junction capacitance and 3.0 μs reverse recovery time support high-frequency signal integrity in 10–100 MHz analog front-ends.
The device operates across –65°C to +150°C with 833°C/W thermal resistance (junction-to-ambient), and maintains ≤80 nA leakage at 75 V and 150°C - critical for low-power battery-operated sensor nodes where standby current must remain sub-100 nA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 85 V - supports clamping of transients up to 85 V without breakdown in automotive 12 V systems. |
| IF (per diode) | 125 mA - enables use in moderate-current bias networks and active termination circuits. |
| IR @ 75 V, 25°C | 5.0 nA max - ensures minimal signal path loading in high-impedance sensor amplifiers. |
| CT @ 0 V, 1 MHz | 2 pF typ - preserves bandwidth in RF detector and IF filter applications up to 500 MHz. |
| trr | 3.0 μs - suitable for <100 kHz switching clamping; not intended for high-speed rectification. |
| PD | 150 mW - limits continuous power dissipation to avoid thermal runaway on FR-4 PCBs with standard pad layout. |
| RθJA | 833°C/W - requires careful thermal pad design or derating above 75°C ambient for sustained operation. |
Pinout & Package
SOT-523 package: 3-terminal, single-row surface-mount outline with anode-cathode-anode configuration (pin 1 = anode, pin 2 = cathode, pin 3 = anode); molded green compound, RoHS-compliant matte tin plating, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Connects to signal source or positive rail for unidirectional clamping or polarity protection. |
| Pin 2 | Cathode (common) | Shared cathode node enables dual-anode configuration for bidirectional transient suppression. |
| Pin 3 | Anode of Diode 2 | Provides symmetrical second anode for differential clamping or dual-rail protection schemes. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including engine control sensors and body electronics. |
| Ultra-low leakage (5 nA) | Enables direct integration into µA-level bias chains without degrading offset or drift in precision op-amp circuits. |
| SOT-523 footprint | 0.8 × 1.6 mm outline saves >60% board area vs. SOT-23, critical for space-constrained ADAS modules. |
| Green molding compound | Halogen-free, UL 94V-0 rated material meets automotive OEM environmental compliance requirements (e.g., GMW3172). |
Applications
| Automotive Cabin Sensor Interface | Industrial Current Loop Receiver |
|---|---|
Use Scenario: Protecting I²C lines and analog outputs of MEMS pressure/temperature sensors in HVAC control modules. IC Role / Device Role / Timing Role: Dual-anode clamping diode shunting ESD pulses to ground while preserving signal fidelity below 1 MHz. Use Value: Prevents latch-up in downstream ASICs during ISO 10605 30 kV air discharge events without adding series resistance or capacitance. |
Use Scenario: Biasing and protecting 4–20 mA loop receiver inputs in PLC analog input cards. IC Role / Device Role / Timing Role: Low-leakage dual diode provides fail-safe overvoltage clamping on both loop terminals relative to ground. Use Value: Maintains <100 nA input bias error across –40°C to +85°C, ensuring 16-bit ADC accuracy without calibration drift. |
| Medical Wearable ECG Front-End | Smart Meter Voltage Monitoring |
Use Scenario: Clamping electrode inputs in ultra-low-power ECG analog front-ends powered by coin-cell batteries. IC Role / Device Role / Timing Role: Symmetric dual diode limits input swing to ±0.9 V while contributing <5 nA leakage at body temperature. Use Value: Extends battery life beyond 3 years by avoiding quiescent current degradation in high-Z instrumentation amplifiers. |
Use Scenario: Protecting voltage divider inputs in Class 0.5 smart meter ICs monitoring 230 V AC mains. IC Role / Device Role / Timing Role: Dual diode clamps surge-induced overvoltages on phase-neutral measurement paths before ADC sampling. Use Value: Survives IEC 61000-4-5 Level 3 (2 kV line-earth) surges without parameter shift or parametric drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-leakage diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV199T-7-F | Same SOT-523 package, but higher leakage (50 nA @ 75 V) and lower VRRM (70 V). | Acceptable for non-automotive consumer interfaces where leakage >20 nA is tolerable. | Select when cost priority outweighs leakage-critical performance and AEC-Q101 is not required. |
| NSR0230HT1G | Single diode, SOD-523, 30 V VRRM, 100 nA leakage - no dual configuration or AEC-Q101 rating. | Limited to unidirectional clamping; unsuitable for balanced or differential protection. | Only viable if redesign allows separate discrete diodes and automotive qualification is waived. |
Compared with BAV199T-7-F and NSR0230HT1G, BAW156T-7-F uniquely delivers AEC-Q101 qualification, 5 nA leakage, and dual-anode symmetry in SOT-523 - making it the only drop-in solution for automotive-grade bidirectional clamping where leakage and reliability are co-constrained.
Availability
BAW156T-7-F is available at Aetrix Electronics and suitable for automotive cabin sensor interfaces, industrial 4–20 mA receivers, and medical wearable ECG front-ends requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for BAW156T-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets since 1960.
BAW156T-7-F belongs to Diodes' AEC-Q101-qualified low-leakage diode product line, engineered specifically for precision clamping and ESD protection in harsh-environment sensor signal conditioning.
FAQ
What is the pin configuration of BAW156T-7-F?
BAW156T-7-F uses a 3-pin SOT-523 package with pin 1 = anode of diode 1, pin 2 = common cathode, and pin 3 = anode of diode 2. This dual-anode configuration enables bidirectional clamping without external wiring changes, and matches the mechanical layout shown in Diodes Inc. DS30258 Rev. 12–2, page 1 top view diagram.
Is BAW156T-7-F suitable for high-temperature automotive applications?
Yes - BAW156T-7-F is qualified to AEC-Q101 and specified for operation from –65°C to +150°C. Its leakage remains ≤80 nA at 75 V and 150°C, and its 833°C/W RθJA allows safe operation at full rated current up to 75°C ambient when mounted per Diodes' recommended FR-4 pad layout (AP02001).
How does BAW156T-7-F compare to BAS116T-7-F in leakage performance?
BAW156T-7-F specifies 5.0 nA max leakage at 75 V and 25°C, while BAS116T-7-F (single diode, same package) specifies 10 nA max under identical conditions. The tighter leakage spec reflects process optimization for dual-diode matching and low-noise applications such as precision sensor biasing.
Can BAW156T-7-F be used in place of BAV170T-7-F?
No - BAV170T-7-F is a dual-series diode (anode–cathode–anode–cathode), whereas BAW156T-7-F is dual-common-cathode (anode–cathode–anode). Their internal connectivity differs fundamentally: BAW156T supports bidirectional clamping to a shared reference, while BAV170T enables series-connected forward conduction paths.
BAW156T-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Anode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 85 V
- Current - Average Rectified (Io) (per Diode):
- 125mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 50 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 3 µs
- Current - Reverse Leakage @ Vr:
- 5 nA @ 75 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
BAW156T-7-F FAQ
1.How can I place an order for BAW156T-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAW156T-7-F 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 BAW156T-7-F reliable?
The price and inventory of BAW156T-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAW156T-7-F is usually 5 days.
3.What payment methods are accepted for BAW156T-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAW156T-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAW156T-7-F?
BAW156T-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAW156T-7-F 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 BAW156T-7-F?
For technical support, including BAW156T-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAW156T-7-F requirements.
6.How does Aetrix verify that BAW156T-7-F is sourced from the original manufacturer or authorized distributors?
All BAW156T-7-F 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 BAW156T-7-F meets industry standards.
7.What is the process for return or replacement of BAW156T-7-F?
All BAW156T-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAW156T-7-F, 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 BAW156T-7-F part is unused and in its original packaging.
Return procedure for BAW156T-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAW156T-7-F Tags
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