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Diodes Incorporated BAS70LP-7B
- Part No.:
- BAS70LP-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BAS70LP-7B.pdf
- Description:
- DIODE SCHOTTKY 70V 70MA 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:651,289
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Product details
Overview
BAS70LP-7B from Diodes Incorporated is a surface-mount Schottky barrier diode rated for 70 V peak repetitive reverse voltage, 70 mA forward current, and 1.6 ns reverse recovery time, with ultra-low forward voltage (0.42 V at 1 mA) optimized for high-efficiency signal rectification in space-constrained portable electronics.
For engineers reviewing the BAS70LP-7B datasheet, BAS70LP-7B pinout, BAS70LP-7B application, or BAS70LP-7B equivalent, key selection criteria include its X1-DFN1006-2 package footprint, low-leakage performance (0.1 µA at 50 V), thermal resistance (295 °C/W), and JEDEC-qualified reliability for consumer and industrial power management circuits.
Technical Context
This Schottky diode uses a planar silicon structure with PN junction guard ring to suppress transient-induced failure and ESD damage, enabling robust operation in noisy DC-DC converter feedback paths and USB port protection circuits. Its low capacitance (1 pF at 0 V) and fast switching support high-frequency (>1 MHz) signal clamping without signal distortion.
The device operates across –65 °C to +150 °C and is qualified to JEDEC standards for high-reliability applications; it is not AEC-Q101 qualified but shares process heritage with automotive-grade variants. Thermal derating begins above 25 °C ambient, with full 70 mA rating only at TA ≤ 25 °C per Fig. 6.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 70 V - maximum non-repetitive reverse voltage before breakdown; sets upper limit for clamp or flyback protection in 5–24 V systems |
| VF @ 1 mA | 0.42 V - enables low-loss biasing of reference circuits and logic-level signal steering without significant voltage drop |
| tRR | 1.6 ns - supports clean edge transitions in 100+ MHz clock routing and RF detector applications |
| CT @ 0 V | 1 pF - minimizes capacitive loading on high-impedance nodes such as op-amp inputs or crystal oscillator buffers |
| IR @ 50 V | 0.1 µA - ensures negligible leakage in battery-backed real-time clock (RTC) hold-up circuits over temperature |
| RθJA | 295 °C/W - requires careful PCB copper area design (per Diodes' recommended pad layout) to sustain >30 mA continuous current |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact 1.0 mm × 0.6 mm, 0.25 mm nominal height, dual-terminal leadless plastic package with NiPdAu-plated terminals and cathode bar marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry point | Connected to higher-potential node in rectifier or clamp configuration; soldered to inner copper layer via thermal pad for heat dissipation |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Marked by bar on top surface; tied to ground or lower-voltage rail; critical for polarity-sensitive ESD protection placement |
Key Features
| Feature | Design Value |
|---|---|
| PN junction guard ring | Provides defined ESD path and transient suppression up to ±8 kV HBM without latch-up, validated per JEDEC JESD22-A114 |
| Ultra-small X1-DFN1006-2 footprint | Reduces board area by >60% vs. SOD-323, enabling placement adjacent to IC pins in dense USB-C or PMIC layouts |
| Low VF at microamp bias | 0.42 V at 1 mA enables accurate voltage threshold detection in low-power wake-up comparators |
| Halogen- and antimony-free "Green" compound | Meets IEC 61249-2-21:2017 with Br+Cl <1500 ppm and Sb <1000 ppm; supports RoHS 3 and automotive ELV compliance |
Applications
| USB Port ESD Protection | DC-DC Converter Feedback Clamp |
|---|---|
Use Scenario: Protects USB 2.0 data lines (D+/D−) against IEC 61000-4-2 contact discharge events. IC Role / Device Role / Timing Role: Bidirectional transient voltage clamp placed between data line and ground, leveraging low capacitance and fast response. Use Value: 1 pF capacitance avoids signal integrity degradation at 480 Mbps; guard ring ensures no secondary failure mode during 8 kV ESD strike. | Use Scenario: Clamps feedback node voltage in buck converter error amplifier to prevent saturation during load transients. IC Role / Device Role / Timing Role: Fast-recovery Schottky clamp limiting FB pin excursion beyond reference voltage during overshoot. Use Value: 1.6 ns tRR prevents delay-induced instability; 0.42 V VF ensures precise clamping threshold near 0.6 V reference rails. |
| Low-Power RTC Backup Switching | RF Signal Detector Diode |
Use Scenario: Selects between main VCC and coin-cell battery to maintain RTC operation during main power loss. IC Role / Device Role / Timing Role: Low-leakage anode-cathode switch isolating backup source when main supply is active. Use Value: 0.1 µA IR at 50 V minimizes battery drain-enabling >10-year shelf life on CR2032 cells in industrial loggers. | Use Scenario: Demodulates 900 MHz ISM band signals in low-cost wireless sensor receivers. IC Role / Device Role / Timing Role: Zero-bias envelope detector converting RF amplitude to baseband DC voltage. Use Value: 1 pF CT and low series resistance enable >50 MHz bandwidth; Schottky barrier yields usable sensitivity down to –20 dBm. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NSR0230HT1G | Higher IFM (300 mA), larger SOD-523 package (1.7 × 1.3 mm), VF = 0.45 V @ 10 mA | Less suitable for ultra-dense layouts; better for higher-current bias networks | Select when >100 mA forward surge capability is required and board space permits larger footprint |
| SD103ATW-7-F | Lower VRRM (30 V), same X1-DFN1006-2 package, VF = 0.45 V @ 10 mA, CT = 10 pF | Unsuitable for 50+ V clamp applications; higher capacitance limits RF use | Choose only for sub-30 V logic-level clamping where cost is prioritized over RF performance |
Compared with NSR0230HT1G and SD103ATW-7-F, the BAS70LP-7B uniquely balances ultra-small size, 70 V rating, and sub-1 pF capacitance-making it optimal for high-density, high-frequency, and medium-voltage signal integrity applications where alternatives trade off voltage rating, speed, or footprint.
Availability
BAS70LP-7B is available at Aetrix Electronics and suitable for USB interface protection, DC-DC feedback clamping, low-power RTC backup switching, and RF envelope detection requiring stable component supply and consistent DFN1006 assembly yield.
Supply support for BAS70LP-7B 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 North America.
The BAS70LP belongs to Diodes' precision Schottky diode product line, engineered specifically for high-speed, low-leakage, and space-constrained signal conditioning in portable and industrial electronics.
FAQ
What is the maximum continuous forward current for BAS70LP-7B at 85°C ambient?
At TA = 85°C, the maximum continuous forward current is derated to approximately 42 mA, based on the linear derating curve in Figure 6 of DS35105 Rev. 3–2. This assumes mounting on FR-4 with Diodes' recommended pad layout; exceeding this current risks thermal runaway due to RθJA = 295 °C/W.
Does BAS70LP-7B have AEC-Q101 qualification?
No, BAS70LP-7B is not AEC-Q101 qualified. It is JEDEC-qualified for high reliability but intended for commercial and industrial applications. For automotive use, Diodes offers Q-suffix variants (e.g., BAS70Q-7B) manufactured in IATF 16949-certified facilities and fully PPAP-capable.
How is cathode identification implemented on the X1-DFN1006-2 package?
The cathode is marked by a visible bar on the top surface of the package, aligned with Pin 2. The device has no polarity-indicating silkscreen; orientation must be verified using optical inspection or automated AOI referencing the bar position relative to the package corner chamfer per Diodes' outline drawing X1-DFN1006-2.
Can BAS70LP-7B replace BAT54S in dual-diode configurations?
No-BAS70LP-7B is a single-diode device in a two-terminal DFN package, whereas BAT54S is a dual-series Schottky in SOT-23. There is no pin-compatible or functional dual-diode equivalent in the X1-DFN1006-2 footprint; separate BAS70LP-7B units would require redesign of layout and netlist to implement dual functionality.
BAS70LP-7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 70 V
- Current - Average Rectified (Io):
- 70mA
- Voltage - Forward (Vf) (Max) @ If:
- 960 mV @ 15 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 1.6 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 70 V
- Capacitance @ Vr, F:
- 1pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X1-DFN1006-2
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAS70LP-7B FAQ
1.How can I place an order for BAS70LP-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70LP-7B 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 BAS70LP-7B reliable?
The price and inventory of BAS70LP-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70LP-7B is usually 5 days.
3.What payment methods are accepted for BAS70LP-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70LP-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70LP-7B?
BAS70LP-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70LP-7B 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 BAS70LP-7B?
For technical support, including BAS70LP-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70LP-7B requirements.
6.How does Aetrix verify that BAS70LP-7B is sourced from the original manufacturer or authorized distributors?
All BAS70LP-7B 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 BAS70LP-7B meets industry standards.
7.What is the process for return or replacement of BAS70LP-7B?
All BAS70LP-7B units undergo pre-shipment inspection (PSI). If there is an issue with BAS70LP-7B, 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 BAS70LP-7B part is unused and in its original packaging.
Return procedure for BAS70LP-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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