Diodes Incorporated BAV170-7-F
- Part No.:
- BAV170-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAV170-7-F.pdf
- Description:
- DIODE ARRAY GP 85V 125MA SOT23-3
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BAV170-7-F from Diodes Incorporated is a dual low-leakage surface-mount silicon switching diode in SOT23 package, featuring 85 V peak reverse voltage, ≤80 nA leakage at 75 V and 150°C, and 3.0 µs reverse recovery time. It serves as a precision signal clamping or high-impedance biasing element in analog front-ends and sensor interface circuits.
For engineers reviewing the BAV170-7-F datasheet, BAV170-7-F pinout, BAV170-7-F application, or BAV170-7-F equivalent, key selection criteria include ultra-low IR at elevated temperature, fast trr for moderate-speed signal routing, dual-diode integration in minimal footprint, and AEC-Q101 qualification availability via BAV170Q variant.
Technical Context
The BAV170-7-F integrates two independent epitaxial planar silicon diodes in a single SOT23-3 package with common cathode configuration (Pin 1: Anode 1, Pin 2: Cathode, Pin 3: Anode 2). Its design targets low-current signal path integrity where leakage-induced offset or thermal drift must be minimized.
It operates across –55°C to +150°C with 250 mW power dissipation on FR-4 board, and exhibits stable capacitance (2 pF @ 0 V) and predictable forward voltage (0.90–1.25 V across 1–150 mA), enabling repeatable biasing in precision analog stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 85 V - supports signal routing in 24 V industrial bus interfaces without breakdown risk |
| IR @ 75 V, 150°C | ≤80 nA - ensures <1 µV offset error in 10 MΩ feedback networks at max operating temperature |
| trr | 3.0 µs - enables reliable operation up to ~100 kHz pulse shaping or sample-and-hold discharge control |
| VF @ 10 mA | 1.0 V typical - provides consistent forward drop for LED indicator drivers or logic-level clamping |
| CT @ 0 V | 2 pF - minimizes capacitive loading on high-impedance nodes such as op-amp inputs or RF detector outputs |
| PD | 250 mW - allows continuous dual-diode operation at 125 mA each under standard PCB layout conditions |
Pinout & Package
Package: SOT23-3, surface-mount, molded plastic (UL 94V-0), 0.008 g weight, matte tin-plated alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Input node for first signal path; requires external current limiting when forward-biased |
| Pin 2 | Common Cathode | Shared return path; ties both diodes' cathodes together for dual-anode, single-cathode topology |
| Pin 3 | Anode of Diode 2 | Independent input node for second signal path; electrically isolated from Pin 1 except through shared cathode |
Key Features
| Feature | Design Value |
|---|---|
| Dual low-leakage diodes in one SOT23 | Reduces PCB area by 40% vs. two discrete SOD-323 diodes while maintaining isolation between anodes |
| Leakage ≤5 nA @ 75 V, 25°C | Enables use in high-precision integrators and electrometer-grade sensor conditioning without guard ring compensation |
| AEC-Q101 qualified variant available (BAV170Q) | Supports automotive body electronics requiring PPAP documentation and IATF16949 traceability |
| Halogen- and antimony-free "Green" construction | Meets IPC-1752A Class 2 reporting requirements for RoHS 3 and ELV compliance in EU/China markets |
Applications
| Industrial Sensor Signal Conditioning | Automotive Cabin Temperature Monitoring |
|---|---|
Use Scenario: Biasing thermistor bridges and clamping op-amp inputs against ESD transients in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Dual-diode clamp protecting instrumentation amplifier inputs while providing matched leakage paths for offset cancellation. Use Value: ≤5 nA leakage at 25°C prevents >10 µV drift in 2 MΩ bridge arms; 3.0 µs trr avoids distortion in 50 kHz sensor excitation waveforms. | Use Scenario: Level-shifting and overvoltage protection for NTC thermistors connected to 5 V MCU ADC inputs in HVAC control modules. IC Role / Device Role / Timing Role: Common-cathode dual diode used for bidirectional rail clamping and reference voltage translation. Use Value: 85 V VRRM withstands load-dump spikes; 80 nA IR at 150°C ensures <0.5°C measurement error drift over full automotive temperature range. |
| Medical Pulse Oximeter Front-End | Programmable Logic Controller Input Isolation |
Use Scenario: Protecting photodiode TIA inputs from ambient light saturation and ESD during patient cable handling. IC Role / Device Role / Timing Role: Low-capacitance (2 pF) dual clamp limiting signal swing to ±0.7 V while preserving bandwidth. Use Value: 2 pF CT adds <0.5% gain error at 1 MHz; sub-1 V VF ensures minimal forward conduction during transient suppression. | Use Scenario: Isolating 24 V DC field inputs from PLC digital input ASICs using optocoupler drive circuitry. IC Role / Device Role / Timing Role: Dual anode configuration enables separate pull-up and transient clamp paths sharing one cathode return. Use Value: Enables compact 24 V input stage with <100 ns response to fast-rising surges; SOT23 footprint fits dense I/O module layouts. |
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 |
|---|---|---|---|
| BAV99-7-F | Higher leakage (≤5 µA @ 75 V), faster trr (≤4 ns), same SOT23-3 package | Better for high-speed digital clamping; unsuitable for precision analog due to leakage | Select when speed dominates over leakage; avoid in sensor bias or integrator paths |
| MMBD7000-7-F | Lower VRRM (70 V), higher VF (1.25 V typ @ 10 mA), same IR spec | Limited to 24 V systems; less margin for industrial surge events | Acceptable for cost-sensitive 12–24 V consumer designs where 85 V rating is not required |
Compared with BAV99-7-F and MMBD7000-7-F, the BAV170-7-F uniquely balances ultra-low leakage at temperature, adequate speed for analog signal paths, and 85 V robustness-making it optimal for precision industrial and automotive sensing where thermal stability and voltage margin are non-negotiable.
Availability
BAV170-7-F is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive cabin monitoring, medical front-end protection, and PLC input isolation requiring stable component supply and long-term manufacturability.
Supply support for BAV170-7-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The BAV170 belongs to Diodes' general-purpose switching diode product line, engineered specifically for high-reliability signal routing, clamping, and biasing in space-constrained, thermally demanding environments.
FAQ
What is the pin configuration of BAV170-7-F?
The BAV170-7-F uses a SOT23-3 package with Pin 1 as Anode 1, Pin 2 as the common cathode, and Pin 3 as Anode 2. This dual-anode, single-cathode arrangement supports independent signal routing with shared return, verified in Diodes' DS30234 Rev. 13 schematic and top-view marking diagram.
Is BAV170-7-F suitable for automotive applications?
The BAV170-7-F itself is not AEC-Q101 qualified; however, its pin-compatible variant BAV170Q-7-F is fully qualified, PPAP-capable, and manufactured in IATF16949-certified facilities. For automotive designs, BAV170Q-7-F must be specified to meet qualification requirements.
How does leakage current change with temperature?
Leakage increases with junction temperature: IR is ≤5.0 nA at 75 V and 25°C, rising to ≤80 nA at 75 V and 150°C. This behavior is characterized in Figure 3 of DS30234 and reflects intrinsic silicon properties-not parametric failure-within the rated operating range.
Can BAV170-7-F replace BAV99-7-F in existing designs?
No direct replacement: BAV170-7-F has significantly lower leakage but slower reverse recovery (3.0 µs vs. ≤4 ns). Swapping may improve DC accuracy in sensor bias networks but degrade performance in high-frequency digital clamping or RF detection circuits where speed is critical.
BAV170-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- 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-23-3
BAV170-7-F FAQ
1.How can I place an order for BAV170-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV170-7-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 BAV170-7-F reliable?
The price and inventory of BAV170-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV170-7-F is usually 5 days.
3.What payment methods are accepted for BAV170-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV170-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV170-7-F?
BAV170-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV170-7-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 BAV170-7-F?
For technical support, including BAV170-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV170-7-F requirements.
6.How does Aetrix verify that BAV170-7-F is sourced from the original manufacturer or authorized distributors?
All BAV170-7-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 BAV170-7-F meets industry standards.
7.What is the process for return or replacement of BAV170-7-F?
All BAV170-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAV170-7-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 BAV170-7-F part is unused and in its original packaging.
Return procedure for BAV170-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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