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Nexperia USA Inc. BUK7Y102-100B,115
- Part No.:
- BUK7Y102-100B,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- FETs, MOSFETs
- Package:
- SC-100, SOT-669
- Datasheet:
-
BUK7Y102-100B,115.pdf
- Description:
- MOSFET N-CH 100V 15A LFPAK56
- Quantity:
- Payment:
- Shipping:
Inventory:2,453
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Product details
Overview
BUK7Y102-100B from Nexperia is an AEC-Q101 qualified N-channel TrenchMOS FET in LFPAK (SOT669) package, rated for 100 V drain-source voltage, 15 A continuous drain current at 25 °C mounting base temperature, and 60 W total power dissipation. It delivers 86 mΩ typical RDS(on) at VGS = 10 V and Tj = 25 °C, with 175 °C maximum junction temperature, enabling use in automotive solenoid drivers and 12–42 V DC-to-DC converters.
For engineers reviewing the BUK7Y102-100B datasheet, BUK7Y102-100B pinout, BUK7Y102-100B application, or BUK7Y102-100B equivalent, key selection criteria include its standard-level gate drive compatibility, unclamped avalanche energy rating of 35 mJ, thermal resistance of 2.53 K/W (junction-to-mounting base), and LFPAK package's enhanced thermal performance over SO-8.
Technical Context
This device uses Nexperia's High-Performance Automotive (HPA) TrenchMOS technology to achieve low RDS(on) while maintaining robust avalanche ruggedness and AEC-Q101 qualification. Its gate threshold voltage ranges from 2 V to 4 V at 25 °C, and it supports operation across -55 °C to +175 °C junction temperature range.
The LFPAK SOT669 package integrates a thermally optimized mounting base connected directly to the drain, enabling efficient heat transfer to the PCB copper area. Dynamic parameters include 12.2 nC total gate charge and 4.7 nC gate-drain charge, supporting fast switching in high-frequency power conversion stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - Maximum blocking voltage for 12 V/24 V/42 V automotive systems without derating. |
| ID (continuous) | 15 A at Tmb = 25 °C - Supports high-current loads like fuel injectors or HVAC actuators. |
| RDS(on) | 86 mΩ typ @ VGS = 10 V, ID = 5 A, Tj = 25 °C - Low conduction loss enables >95% efficiency in 12 V load switches. |
| EAS | 35 mJ unclamped avalanche energy - Withstands inductive kickback from solenoids without external snubbers. |
| Rth(j-mb) | 2.53 K/W - Enables direct thermal coupling to PCB copper, reducing need for heatsinks in space-constrained modules. |
| QG(tot) | 12.2 nC - Compatible with standard 10 V gate drivers; enables <25 ns turn-off delay for PWM frequencies up to 500 kHz. |
| Tj(max) | 175 °C - Qualified for under-hood automotive environments including engine control units and battery management. |
Pinout & Package
Package: LFPAK (SOT669), plastic single-ended surface-mounted package with exposed mounting base for thermal enhancement. Dimensions: 6.2 × 5.0 × 1.3 mm (L × W × H); mounting base electrically connected to drain.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 - S | Source | Three parallel source terminals reduce bond wire inductance and improve current sharing in high-pulse applications. |
| 4 - G | Gate | Single gate input with 20 V absolute max rating; compatible with 5 V/12 V microcontroller outputs via level-shifting or buffer. |
| Mounting Base - D | Drain | Exposed copper pad tied internally to drain; serves as primary thermal path and high-current return node for PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive safety-critical systems including powertrain and chassis control modules. |
| Standard-level gate drive | Operates fully enhanced with 10 V gate drive, eliminating need for gate boosters in 12 V board networks. |
| 175 °C junction rating | Enables operation in high-ambient zones (e.g., near engines or inverters) without thermal throttling. |
| LFPAK thermal performance | 2.53 K/W Rth(j-mb) allows 60 W dissipation with only 152 °C ΔT above mounting base-no external heatsink required. |
| Unclamped avalanche capability | 35 mJ EAS permits direct driving of inductive loads (e.g., fuel injectors) without clamping diodes. |
Applications
| Automotive Solenoid Driver | 12 V Load Switch |
|---|---|
|
Use Scenario: Driving 12 V fuel injectors or transmission shift solenoids in engine control units. IC Role / Device Role / Timing Role: High-side or low-side power switch controlling inductive coil activation/deactivation. Use Value: 35 mJ avalanche energy absorbs inductive flyback without snubber circuits; 175 °C rating ensures reliability during extended idle-stop cycles. |
Use Scenario: Powering infotainment head units or ADAS cameras from vehicle battery rail. IC Role / Device Role / Timing Role: Low-loss main power switch enabling controlled hot-swap and reverse-polarity protection. Use Value: 86 mΩ RDS(on) limits voltage drop to <0.8 V at 10 A, preserving system efficiency and minimizing thermal stress on PCB traces. |
| DC-DC Converter High-Side Switch | 42 V Mild Hybrid System Switch |
|
Use Scenario: High-side switch in synchronous buck converter for 5 V/3.3 V auxiliary rails in body control modules. IC Role / Device Role / Timing Role: Fast-switching power transistor with low QG and QGD enabling high-frequency operation. Use Value: 12.2 nC total gate charge and 4.7 nC gate-drain charge support clean zero-voltage switching transitions at 300–500 kHz. |
Use Scenario: Main contactor or pre-charge switch in 42 V mild hybrid architectures (e.g., belt-driven starter generators). IC Role / Device Role / Timing Role: Robust power switch handling transient overvoltage events up to 100 V during regenerative braking. Use Value: 100 V VDS rating with 175 °C thermal margin ensures safe operation during 42 V bus surges exceeding 80 V for >100 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL100N10F7 | 100 V, 100 A, 5.5 mΩ RDS(on), TO-220FP package, 175 °C rated | Higher current capacity but larger footprint and higher gate charge (65 nC) | Select when >15 A continuous current or discrete heatsink mounting is required; not suitable for space-constrained LFPAK layouts. |
| IRF3205PBF | 55 V, 110 A, 8 mΩ RDS(on), TO-220 package, 175 °C rated, non-AEC-Q101 | Lower voltage rating and no automotive qualification; higher thermal resistance (3.5 K/W) | Acceptable for industrial 12 V switching where AEC-Q101 is not mandated; requires additional thermal design effort. |
Compared with STL100N10F7 and IRF3205PBF, BUK7Y102-100B trades peak current for superior thermal integration in compact automotive modules, offers guaranteed AEC-Q101 compliance, and delivers optimal balance of RDS(on), gate drive simplicity, and avalanche ruggedness in the 15 A class.
Availability
BUK7Y102-100B is available at Aetrix Electronics and suitable for automotive solenoid drivers, 12 V/24 V load switches, and DC-to-DC converter high-side switches requiring stable component supply across production lifecycles.
Supply support for BUK7Y102-100B 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 logic, discrete, and MOSFET solutions, with deep expertise in automotive-grade components.
BUK7Y102-100B belongs to Nexperia's High-Performance Automotive (HPA) TrenchMOS product line, engineered specifically for demanding automotive power switching applications requiring AEC-Q101 qualification, thermal resilience, and robust avalanche performance.
FAQ
Is BUK7Y102-100B suitable for high-frequency PWM applications?
Yes. With 12.2 nC total gate charge, 4.7 nC gate-drain charge, and 25 ns turn-off delay time, BUK7Y102-100B supports clean switching at frequencies up to 500 kHz in buck converters and motor drivers. Its low Crss (38–52 pF) minimizes Miller-induced shoot-through risk in half-bridge configurations.
What is the recommended PCB layout for optimal thermal performance?
Use ≥200 mm² of 2 oz copper connected directly to the mounting base (drain) with ≥4 thermal vias (0.3 mm diameter, spaced ≤2 mm apart) to inner ground/power planes. Keep source and gate traces short and wide; avoid routing sensitive analog traces beneath the LFPAK footprint.
Does BUK7Y102-100B require a gate resistor for automotive solenoid driving?
A 10 Ω series gate resistor is recommended to damp ringing and limit peak gate current during fast switching. This value balances switching speed (tr/tf < 6 ns) with EMI suppression and avoids excessive gate driver stress under 10 V drive conditions.
Can BUK7Y102-100B replace older SO-8 packaged MOSFETs in existing designs?
Yes, with layout adaptation. The LFPAK SOT669 footprint differs from SO-8, but its lower Rth(j-mb) (2.53 K/W vs. ~6 K/W for SO-8) and higher current rating allow direct functional replacement in thermally constrained spaces-provided PCB copper area and thermal via count are updated per Nexperia AN10273 guidelines.
BUK7Y102-100B,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- TrenchMOS™
- Package/Case:
- SC-100, SOT-669
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 15A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 102mOhm @ 5A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 1mA
- Gate Charge (Qg) (Max) @ Vgs:
- 12.2 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 779 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 60W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LFPAK56, Power-SO8
BUK7Y102-100B,115 FAQ
1.How can I place an order for BUK7Y102-100B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BUK7Y102-100B,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 BUK7Y102-100B,115 reliable?
The price and inventory of BUK7Y102-100B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK7Y102-100B,115 is usually 5 days.
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4.How is shipping managed for BUK7Y102-100B,115?
BUK7Y102-100B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BUK7Y102-100B,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 BUK7Y102-100B,115?
For technical support, including BUK7Y102-100B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK7Y102-100B,115 requirements.
6.How does Aetrix verify that BUK7Y102-100B,115 is sourced from the original manufacturer or authorized distributors?
All BUK7Y102-100B,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 BUK7Y102-100B,115 meets industry standards.
7.What is the process for return or replacement of BUK7Y102-100B,115?
All BUK7Y102-100B,115 units undergo pre-shipment inspection (PSI). If there is an issue with BUK7Y102-100B,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 BUK7Y102-100B,115 part is unused and in its original packaging.
Return procedure for BUK7Y102-100B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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