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Nexperia USA Inc. 1PS74SB23,115
- Part No.:
- 1PS74SB23,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-74, SOT-457
- Datasheet:
-
1PS74SB23,115.pdf
- Description:
- DIODE SCHOTTKY 25V 1A 6TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
1PS74SB23 from Nexperia is a planar Schottky barrier diode in TSOP6 (SOT457) package, configured as a dual-anode/dual-cathode parallel array (pins 1/3/4/6 = anode, 2/5 = cathode), rated for 1 A forward current, 25 V reverse voltage, and 400–450 mV forward voltage at 1 A. It delivers ultra-fast switching and surge robustness (25 A non-repetitive peak) for automotive-grade rectification and polarity protection.
For engineers reviewing the 1PS74SB23 datasheet, 1PS74SB23 pinout, 1PS74SB23 application, or 1PS74SB23 equivalent, key selection criteria include its AEC-Q101 qualification, low VF at high IF, parallel-pin architecture enabling high-current routing in compact SMD layouts, and thermal resistance of 250 K/W on FR4.
Technical Context
This discrete Schottky diode uses a guard ring-protected planar junction to suppress edge breakdown and ensure stable reverse leakage (<1 mA at 25 V). Its parallel-anode/cathode configuration (4 anodes + 2 cathodes) supports high-current conduction paths while maintaining low thermal impedance via the TSOP6 leadframe.
The device operates across −55 °C to +125 °C ambient, with junction temperature limited to 125 °C. Its 100 pF capacitance at 4 V reverse bias and fast recovery enable use in high-frequency SMPS output stages where low stored charge minimizes switching loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Current (IF) | 1 A continuous - supports high-current DC output rails in compact power converters |
| Reverse Voltage (VR) | 25 V - suitable for 24 V automotive systems and 12–19 V industrial supplies |
| Forward Voltage (VF) | 400–450 mV @ 1 A, 25 °C - reduces conduction loss vs. standard silicon diodes by ~300 mV |
| Non-repetitive Peak Forward Current (IFSM) | 25 A @ 8.3 ms half-sine - withstands cold-start inrush and load-dump transients |
| Reverse Leakage (IR) | ≤1 mA @ 25 V, 25 °C - ensures low standby power in always-on circuits |
| Junction-to-Ambient Thermal Resistance (Rth(j-a)) | 250 K/W on FR4, single-sided copper - defines heatsinking requirement for 1 A operation |
| Diode Capacitance (Cd) | 100 pF @ 4 V, 1 MHz - limits high-frequency noise coupling in switching node applications |
Pinout & Package
Package: TSOP6 (SOT457), surface-mounted plastic package with 6 leads, 3.0 mm × 2.5 mm footprint, 1.3 mm height, and tin-plated leads compatible with reflow and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 4, 6 | Anode | Internally paralleled anodes - distribute 1 A total current across four terminals to reduce trace heating and improve solder joint reliability |
| 2, 5 | Cathode | Internally paralleled cathodes - provide low-inductance return path; dual cathodes aid thermal spreading and current sharing |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including engine control modules and body electronics |
| Guard ring protection | Prevents premature edge breakdown at high VR, ensuring stable reverse blocking up to 25 V |
| Ultra-low VF (400–450 mV) | Reduces power dissipation by ~0.4 W at 1 A vs. conventional Schottkys with VF > 500 mV |
| High surge capability (25 A IFSM) | Survives 8.3 ms load-dump pulses without degradation in 12 V/24 V vehicle electrical systems |
| Low diode capacitance (100 pF) | Minimizes switching node ringing and EMI in 300 kHz–1 MHz SMPS designs |
Applications
| Automotive Body Control Module | Industrial 24 V DC Power Supply |
|---|---|
Use Scenario: Reverse-polarity protection on 12 V/24 V input rail feeding microcontroller and CAN transceiver circuitry. IC Role / Device Role / Timing Role: Unidirectional current gate preventing damage during battery misconnection. Use Value: 25 V VR rating matches ISO 7637-2 pulse 1/2a requirements; 1 A IF sustains full module load without derating. |
Use Scenario: Output rectification in 24 V, 1 A isolated flyback converter for PLC I/O modules. IC Role / Device Role / Timing Role: High-efficiency synchronous rectifier replacement in secondary-side conduction path. Use Value: 400–450 mV VF cuts conduction loss by 0.3–0.4 W vs. Si diode, improving efficiency by ~1.2% at full load. |
| USB-C Power Delivery Adapter | Smart Lighting Driver |
Use Scenario: Input polarity protection before buck controller in 20 V USB-PD adapter. IC Role / Device Role / Timing Role: Fail-safe series diode blocking reverse current during hot-plug events. Use Value: Dual-cathode layout enables low-inductance PCB routing to minimize voltage overshoot during transient reversal. |
Use Scenario: Freewheeling path in constant-current LED driver with 1 A output and PWM dimming. IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode clamping inductor flyback energy during switch-off. Use Value: 100 pF Cd and <100 ns recovery time suppress audible coil whine and reduce EMI filter size. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS1L25A | Single-anode/single-cathode TO-277 package; 1.25 A IF; 25 V VR; VF = 450 mV @ 1 A | Larger footprint; no internal parallel pins; higher Rth(j-a) (~300 K/W) | Preferred when board space allows larger package and thermal management uses external heatsink |
| RB055LAM-40 | Single-diode SOD-123FL; 0.5 A IF; 40 V VR; VF = 420 mV @ 0.5 A; AEC-Q101 qualified | Lower current rating; higher VR margin; not pin-compatible due to 2-pin format | Used where 40 V headroom is required and 0.5 A suffices, e.g., low-power sensor nodes |
Compared with STPS1L25A and RB055LAM-40, the 1PS74SB23 uniquely combines AEC-Q101 compliance, 1 A rating, ultra-low VF, and internal parallel-pin architecture-enabling higher current density and lower PCB thermal stress in space-constrained automotive and industrial SMD designs.
Availability
1PS74SB23 is available at Aetrix Electronics and suitable for automotive body control modules, industrial 24 V DC power supplies, USB-C power delivery adapters, and smart lighting drivers requiring stable component supply and AEC-Q101 assurance.
Supply support for 1PS74SB23 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 automotive-qualified components and advanced packaging.
The 1PS74SB23 belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for robust, low-loss rectification and polarity protection in harsh-environment automotive and industrial power systems.
FAQ
Is the 1PS74SB23 suitable for synchronous rectification in a 1 MHz DC-DC converter?
No - while its 100 pF capacitance and fast recovery support up to ~500 kHz operation, synchronous rectification at 1 MHz requires MOSFET-based solutions with gate drive control. The 1PS74SB23 functions as a passive Schottky rectifier optimized for ≤300 kHz SMPS output stages and polarity protection.
How does the parallel-pin configuration affect PCB layout?
The 4-anode/2-cathode layout requires connecting all anode pins (1,3,4,6) to the same net and both cathodes (2,5) to the return path. This reduces current density per trace, lowers effective series inductance, and improves thermal distribution - but demands symmetrical copper pours and equal-length routing to avoid imbalance.
What is the maximum allowable PCB copper area for optimal thermal performance?
With the specified FR4 single-sided copper footprint (2.4 mm × 0.95 mm solder lands), Rth(j-a) is 250 K/W. Increasing copper area beyond the recommended 3.45 mm × 1.95 mm reflow pad (Fig. 5) yields diminishing returns; doubling copper area typically improves Rth(j-a) by only 15–20 K/W due to epoxy thermal resistance limits.
Does the 1PS74SB23 require derating at elevated ambient temperatures?
Yes - at Tamb = 85 °C, the maximum continuous forward current must be reduced to 0.7 A to maintain Tj ≤ 125 °C, based on Rth(j-a) = 250 K/W and ΔT = 40 K. Derating follows linear interpolation between 1 A at 25 °C and 0 A at 125 °C ambient per the datasheet thermal curve.
1PS74SB23,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 25 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 450 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 mA @ 25 V
- Capacitance @ Vr, F:
- 100pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
- Operating Temperature - Junction:
- 125°C (Max)
1PS74SB23,115 FAQ
1.How can I place an order for 1PS74SB23,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PS74SB23,115 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 1PS74SB23,115 reliable?
The price and inventory of 1PS74SB23,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PS74SB23,115 is usually 5 days.
3.What payment methods are accepted for 1PS74SB23,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PS74SB23,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PS74SB23,115?
1PS74SB23,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PS74SB23,115 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 1PS74SB23,115?
For technical support, including 1PS74SB23,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PS74SB23,115 requirements.
6.How does Aetrix verify that 1PS74SB23,115 is sourced from the original manufacturer or authorized distributors?
All 1PS74SB23,115 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 1PS74SB23,115 meets industry standards.
7.What is the process for return or replacement of 1PS74SB23,115?
All 1PS74SB23,115 units undergo pre-shipment inspection (PSI). If there is an issue with 1PS74SB23,115, 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 1PS74SB23,115 part is unused and in its original packaging.
Return procedure for 1PS74SB23,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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