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Taiwan Semiconductor Corporation SMB10J15AH
- Part No.:
- SMB10J15AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J15AH.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,940
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Product details
Overview
SMB10J15AH from Taiwan Semiconductor is a unidirectional 1000W surface-mount transient voltage suppressor (TVS) diode with a 15V standoff voltage, 16.7–18.5V breakdown range at 1mA, and 24.4V clamping voltage at 41.0A peak pulse current; used for automotive ESD and load-dump protection in power supply rails and CAN/LIN interfaces.
For engineers reviewing the SMB10J15AH datasheet, SMB10J15AH pinout, SMB10J15AH application, or SMB10J15AH equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, AEC-Q101 qualification status, DO-214AA package thermal resistance (RθJL = 20°C/W), and unidirectional polarity marking.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for sub-nanosecond response (<1.0ps) to fast transients, enabling robust protection of downstream ICs against electrical fast transients (EFT) and inductive switching spikes. Its unidirectional configuration provides forward conduction capability with 3.5V @ 50A VF rating.
The device operates across –55°C to +175°C junction temperature range and is rated for 1000W peak pulse power (1ms, 10/1000μs waveform), derated linearly above 25°C ambient per Fig. 2. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse working voltage before clamping begins |
| VBR min/max | 16.7 V / 18.5 V @ IT = 1 mA - Confirmed breakdown threshold range for design margining |
| VC | 24.4 V @ IPPM = 41.0 A - Clamping voltage limiting stress on protected IC during 10/1000μs surge |
| PPK | 1000 W - Peak pulse power handling per single 1ms transient, critical for ISO 7637-2 compliance |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance enabling 5W steady-state dissipation in PCB-mounted condition |
| TJ max | +175 °C - Maximum junction temperature supporting under-hood automotive deployment |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile, matte tin-plated leads, cathode band marked on body for polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse transient return path | Connected to lower-potential rail (e.g., ground or battery negative); enables unidirectional clamping |
| Cathode | Forward current exit / Transient voltage reference node | Connected to protected line (e.g., 12V rail); clamps to anode when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass-passivated junction | Enhances long-term stability and leakage control under high-humidity and thermal stress conditions |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) waveforms |
| Fast response time <1.0 ps | Ensures clamping activation prior to propagation of nanosecond-scale ESD events into sensitive analog/digital circuitry |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs from load-dump transients up to ±100V during alternator regulation failure. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before LDO/regulator input. Use Value: Limits peak voltage to 24.4V at 41A, preventing overvoltage damage to 36V-rated power management ICs. | Use Scenario: Shielding RS-485 transceivers and microcontroller GPIOs from ESD events in factory automation panels. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting ESD current to chassis ground via low-inductance path. Use Value: Sub-1ps response ensures clamping occurs before 15kV contact discharge couples into signal traces. |
| LED Lighting Driver Protection | Automotive LIN Bus Line Protection |
Use Scenario: Safeguarding constant-current LED drivers from inductive kickback during MOSFET switching in headlamp modules. IC Role / Device Role / Timing Role: TVS connected across driver output terminals to absorb flyback energy from parasitic inductance. Use Value: 1000W peak power rating handles repetitive 50A surge currents without degradation over lifetime. | Use Scenario: Securing LIN physical layer transceivers against battery disconnect transients and coupling noise in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS tied between LIN bus line and ground, referenced to local ground plane. Use Value: 15V VWM allows normal LIN signaling (±12V swing) while clamping >24V faults to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15A (ON Semiconductor) | Same DO-214AA package, identical 15V VWM, but VC = 24.4V @ 41.2A; RθJA = 100°C/W (same), not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial systems where AEC-Q101 is not mandated | Select SMBJ15A only if AEC-Q101 compliance is unnecessary and cost sensitivity outweighs qualification requirements |
| P6SMB15A (Littelfuse) | Identical electrical specs (VWM = 15V, VC = 24.4V @ 41A), same DO-214AA package, AEC-Q101 qualified, but moisture sensitivity level is MSL 2 per J-STD-020 | Requires baking prior to reflow if exposed beyond floor life; adds process step vs. SMB10J15AH's MSL 1 rating | Prefer SMB10J15AH for high-volume SMT lines where MSL 1 eliminates bake cycles and improves throughput |
Compared with SMBJ15A and P6SMB15A, SMB10J15AH uniquely combines AEC-Q101 qualification, MSL 1 handling, and ISO 7637-2 compliance in a single-source solution-reducing validation overhead for Tier 1 automotive suppliers requiring zero-bake assembly and full automotive stress certification.
Availability
SMB10J15AH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED lighting drivers, and LIN/CAN bus protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for SMB10J15AH 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive and industrial markets.
The SMB10JxxAH series was developed specifically for AEC-Q101-compliant transient suppression in harsh automotive environments, emphasizing thermal robustness, fast response, and ISO 7637-2 immunity.
FAQ
What is the clamping voltage of SMB10J15AH and how is it measured?
The SMB10J15AH has a maximum clamping voltage (VC) of 24.4 V, measured at a peak pulse current (IPPM) of 41.0 A using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and reflects worst-case voltage seen by protected circuitry during surge events.
Is SMB10J15AH suitable for bidirectional transient protection?
No, SMB10J15AH is unidirectional. For bidirectional operation, use SMB10J15CAH (CAH suffix), which features symmetrical clamping in both polarities. The "AH" suffix explicitly denotes unidirectional configuration with cathode band marking.
Does SMB10J15AH require special handling during PCB assembly?
No special handling is required: SMB10J15AH is rated MSL 1 (per J-STD-020), meaning it can be stored indefinitely at ambient conditions and placed directly into reflow without baking. Its matte tin-plated leads comply with J-STD-002 for solderability.
What automotive standards does SMB10J15AH meet?
SMB10J15AH meets ISO 7637-2 for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (electrical fast transients), and is fully qualified to AEC-Q101 Rev D for stress testing including HTGB, HTRB, and temperature cycling.
How does SMB10J15AH compare to standard SMBJ15A in terms of thermal performance?
SMB10J15AH and SMBJ15A share identical RθJL = 20°C/W and RθJA = 100°C/W values, enabling equivalent PCB thermal design. However, SMB10J15AH's AEC-Q101 qualification validates its thermal endurance under automotive-relevant accelerated life tests, unlike SMBJ15A.
SMB10J15AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- SMB10J
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 41A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J15AH FAQ
1.How can I place an order for SMB10J15AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J15AH 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 SMB10J15AH reliable?
The price and inventory of SMB10J15AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J15AH is usually 5 days.
3.What payment methods are accepted for SMB10J15AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J15AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J15AH?
SMB10J15AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J15AH 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 SMB10J15AH?
For technical support, including SMB10J15AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J15AH requirements.
6.How does Aetrix verify that SMB10J15AH is sourced from the original manufacturer or authorized distributors?
All SMB10J15AH 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 SMB10J15AH meets industry standards.
7.What is the process for return or replacement of SMB10J15AH?
All SMB10J15AH units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J15AH, 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 SMB10J15AH part is unused and in its original packaging.
Return procedure for SMB10J15AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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