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Nexperia USA Inc. BAS70H,115
- Part No.:
- BAS70H,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
BAS70H,115.pdf
- Description:
- DIODE SCHOTTKY 70V 70MA SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:16,691
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Product details
Overview
BAS70H from Nexperia is a general-purpose Schottky diode in SOD123F package, designed for ultra-high-speed switching and voltage clamping. It delivers 70 mA forward current, 410 mV forward voltage at 1 mA, 70 V reverse voltage rating, 2 pF capacitance at 0 V, and 100 nA reverse leakage at 50 V - enabling compact, low-loss signal path protection in space-constrained DC-DC and interface circuits.
For engineers reviewing the BAS70H datasheet, BAS70H pinout, BAS70H application, or BAS70H equivalent, key selection criteria include its low VF/IR trade-off, SOD123F thermal resistance (330 K/W), cathode-marked polarity, and suitability for pulsed switching in 5–24 V rail clamp and flyback snubber designs.
Technical Context
The BAS70H operates as a unidirectional, low-barrier Schottky rectifier optimized for fast transient response and minimal stored charge. Its metal-semiconductor junction enables sub-nanosecond recovery time and eliminates minority-carrier delay - critical for high-frequency (>10 MHz) clamping and sampling applications.
Thermal performance is defined by junction-to-ambient resistance of 330 K/W on FR4 PCB with single-sided copper, requiring reflow-only soldering per JEDEC J-STD-020. The device is rated for continuous operation up to 150 °C junction temperature and supports repetitive peak forward current of 70 mA (tp ≤ 1 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Voltage (VF) | 410 mV at 1 mA pulsed - ensures minimal conduction loss in low-current bias and sensing paths |
| Reverse Voltage (VR) | 70 V - supports clamp protection across 24 V industrial rails and 48 V PoE interfaces |
| Reverse Leakage (IR) | 100 nA at 50 V - preserves signal integrity in high-impedance analog monitoring nodes |
| Capacitance (Cd) | 2 pF at 0 V, 1 MHz - enables clean edge fidelity in >100 MHz digital signal routing |
| Forward Current (IF) | 70 mA continuous - sufficient for LED bias, logic-level translation, and small-signal rectification |
| Junction Temperature (Tj) | 150 °C maximum - allows operation in sealed enclosures without active cooling |
Pinout & Package
Package: SOD123F - surface-mount plastic package measuring 2.6 mm × 1.6 mm × 1.1 mm, with flat leads and cathode-indicating marking bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Marked side with bar; connects to lower-potential node in forward-biased configuration |
| 2 | Anode (A) | Unmarked lead; connects to higher-potential node; defines current entry point during conduction |
Key Features
| Feature | Design Value |
|---|---|
| High switching speed | Sub-ns reverse recovery due to majority-carrier conduction - avoids ringing in fast-edge digital lines |
| Low leakage current | 100 nA at 50 V enables use in battery-backed real-time clock backup and sensor bias networks |
| Low capacitance | 2 pF minimizes loading on RF detector outputs and high-Z op-amp inputs |
| High breakdown voltage | 70 V VR withstand supports 48 V Ethernet PHY clamping and automotive 24 V subsystems |
Applications
| DC-DC Converter Output Clamp | Digital I/O Level Translation |
|---|---|
Use Scenario: Clamping overshoot on synchronous buck converter output during load transients. IC Role / Device Role / Timing Role: Fast-recovery Schottky clamp diode placed between output rail and ground reference. Use Value: 410 mV VF limits clamp voltage to <3.3 V + 0.41 V, protecting downstream 3.3 V logic without resistor divider overhead. |
Use Scenario: Bidirectional level shifting between 5 V microcontroller GPIO and 3.3 V sensor interface. IC Role / Device Role / Timing Role: Passive diode-based level translator using anode-cathode orientation to enforce voltage offset. Use Value: 2 pF capacitance prevents signal degradation at 10 MHz SPI clock rates; 100 nA IR avoids pull-up current error in open-drain configurations. |
| Flyback Snubber Network | RF Detector Bias Isolation |
Use Scenario: Absorbing leakage inductance energy in offline flyback transformer primary winding. IC Role / Device Role / Timing Role: High-voltage Schottky in RCD snubber network, conducting only during voltage spikes. Use Value: 70 V VR rating accommodates reflected primary voltage peaks up to 65 V; low VF reduces power dissipation in 100 kHz–500 kHz operation. |
Use Scenario: Isolating DC bias from RF detector diode output while preserving AC envelope fidelity. IC Role / Device Role / Timing Role: Low-capacitance Schottky blocking diode in series with detector output path. Use Value: 2 pF Cd introduces <0.1 dB insertion loss at 900 MHz; 100 nA IR prevents bias drift in millivolt-range envelope signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RB520S-30T1G (ON Semiconductor) | 30 V VR, 200 mA IF, SOD-523 package (1.6 × 0.8 mm) | Lower voltage rating; smaller footprint - suitable only for ≤3.3 V systems | Select when board area is constrained and VR ≤30 V suffices; avoid for 24 V clamping |
| SD103AW-TP (Micro Commercial Components) | 40 V VR, 200 mA IF, SOD-123 package (same outline but no flat leads) | Higher IF but lower VR; slightly higher Rth(j-a) (~350 K/W) | Prefer for higher-current 12 V rail clamps where 40 V margin is acceptable |
Compared with RB520S-30T1G and SD103AW-TP, the BAS70H uniquely balances 70 V VR, SOD123F thermal profile, and 2 pF capacitance - making it optimal for 24–48 V industrial clamping where both voltage headroom and RF cleanliness are required.
Availability
BAS70H is available at Aetrix Electronics and suitable for DC-DC converter output clamp, digital I/O level translation, and flyback snubber network applications requiring stable component supply and consistent SOD123F assembly compatibility.
Supply support for BAS70H 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 Schottky diodes, MOSFETs, and ESD protection.
The BAS70H belongs to Nexperia's general-purpose Schottky diode product line, engineered for cost-sensitive, high-speed signal integrity applications in industrial power supplies and interface circuits.
FAQ
Is BAS70H suitable for automotive applications?
No. The BAS70H is explicitly marked as non-automotive qualified in its revision history. It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation beyond 150 °C junction. For automotive use, Nexperia offers the BAS70-07W-Q variant with full AEC-Q101 compliance and -40 °C to +150 °C operation.
What is the maximum allowable soldering temperature for BAS70H?
The BAS70H must be soldered using reflow only, per JEDEC J-STD-020. Peak reflow temperature is 260 °C for ≤10 seconds, with ramp-up rate ≤3 °C/s and ramp-down rate ≤6 °C/s. Wave or hand soldering is not recommended due to thermal stress on the SOD123F mold compound and internal wire bonds.
Does BAS70H have polarity marking on the package?
Yes. The SOD123F package features a molded cathode bar on the top surface adjacent to Pin 1. This marking aligns with the "K" designation in the pinning diagram and confirms cathode orientation for correct PCB layout and assembly verification.
How does BAS70H compare to BAS70-04 in terms of electrical performance?
The BAS70H and BAS70-04 share identical electrical specs (70 V VR, 70 mA IF, 410 mV VF), but differ in packaging: BAS70H uses SOD123F (flat leads), while BAS70-04 uses SOD-323 (smaller, gull-wing leads). Thermal resistance is 330 K/W for BAS70H vs. ~400 K/W for BAS70-04, making BAS70H preferable for higher-power pulse handling.
BAS70H,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123F
- 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:
- 1 V @ 15 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 70 V
- Capacitance @ Vr, F:
- 2pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- 150°C (Max)
BAS70H,115 FAQ
1.How can I place an order for BAS70H,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS70H,115 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 BAS70H,115 reliable?
The price and inventory of BAS70H,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS70H,115 is usually 5 days.
3.What payment methods are accepted for BAS70H,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS70H,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS70H,115?
BAS70H,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS70H,115 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 BAS70H,115?
For technical support, including BAS70H,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS70H,115 requirements.
6.How does Aetrix verify that BAS70H,115 is sourced from the original manufacturer or authorized distributors?
All BAS70H,115 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 BAS70H,115 meets industry standards.
7.What is the process for return or replacement of BAS70H,115?
All BAS70H,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAS70H,115, 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 BAS70H,115 part is unused and in its original packaging.
Return procedure for BAS70H,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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