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Taiwan Semiconductor Corporation SMB10J17CAH
- Part No.:
- SMB10J17CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J17CAH.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,615
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Product details
Overview
SMB10J17CAH from Taiwan Semiconductor is a bidirectional 1000W transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, with 17V standoff voltage (VWM), 18.9–20.9V breakdown voltage (VBR), and 27.6V clamping voltage (VC) at 36.2A peak pulse current; designed for automotive-grade ESD and load-dump protection in lighting control and power electronics.
For engineers reviewing the SMB10J17CAH datasheet, SMB10J17CAH pinout, SMB10J17CAH application, or SMB10J17CAH equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and thermal performance (RθJA = 100°C/W, RθJL = 20°C/W).
Technical Context
This bidirectional TVS diode uses a glass-passivated junction to achieve fast response (<1.0 ps) and stable clamping under repetitive transients. It operates across –55°C to +175°C junction temperature range and supports unidirectional or bidirectional surge suppression depending on suffix (AH vs CAH).
The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, enabling direct use in lead-free reflow processes. Its DO-214AA package provides low-profile mounting and automated placement compatibility while maintaining 1000W peak pulse power rating at 1 ms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 18.9 / 20.9 V - Breakdown occurs within this range at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 27.6 V - Clamped voltage at 36.2 A peak pulse current, limiting downstream voltage stress |
| PPK | 1000 W - Peak pulse power handling per 1 ms waveform (Fig. 3), critical for load-dump immunity |
| TJ max | +175 °C - Maximum junction temperature, enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient, used to calculate temperature rise under steady-state power |
| Configuration | Bidirectional - Symmetric clamping for AC-coupled or floating signal lines without polarity concern |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile, matte tin-plated leads, polarity indicated by cathode band (not applicable for bidirectional SMB10J17CAH; device is symmetric).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals serve identical clamping function; no polarity dependency enables flexible PCB layout |
| Case (body) | Thermal and mechanical interface | DO-214AA body transfers heat to PCB copper; 0.110 g mass affects thermal time constant |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronic systems requiring reliability under temperature cycling, humidity, and mechanical shock |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnect/load dump), and Pulse 3a/3b (switching transients) |
| Fast response time <1.0 ps | Clamps before sensitive ICs experience overvoltage damage, critical for CAN/LIN bus and microcontroller I/O protection |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under high-humidity or thermal stress conditions |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally restricted substances in production |
Applications
| Automotive Lighting Control | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting LED driver ICs from load-dump transients during vehicle battery disconnection. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed across power input rails to limit voltage excursion to ≤27.6 V. Use Value: Prevents latch-up or gate oxide rupture in buck controllers and MOSFET drivers during ISO 7637-2 Pulse 2b events. | Use Scenario: Safeguarding PLC analog input modules from inductive kickback when solenoids de-energize. IC Role / Device Role / Timing Role: Transient shunt between signal line and ground, activated within <1 ps to clamp spikes up to 1000 W. Use Value: Maintains signal integrity and prevents false triggering in 4–20 mA loop receivers during electrical fast transients. |
| Automotive Body Control Module (BCM) | DC Power Distribution Units |
Use Scenario: ESD protection for LIN bus transceivers exposed to human contact in door modules. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on differential LIN lines, suppressing ±8 kV contact discharge per IEC 61000-4-2. Use Value: Ensures uninterrupted communication during ESD events without signal distortion or data corruption. | Use Scenario: Overvoltage suppression on 12 V/24 V DC distribution buses feeding multiple subsystems. IC Role / Device Role / Timing Role: Primary rail-level TVS absorbing energy from alternator load dump or relay bounce. Use Value: Limits bus voltage to 27.6 V during 1000 W transients, protecting downstream DC-DC converters and PMICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17CA | Same DO-214AA package, 1000 W rating, but VBR min/max = 18.9/22.1 V; VC = 27.6 V at 36.2 A - identical clamping | Not AEC-Q101 qualified; lacks ISO 7637-2 validation and automotive traceability | Select SMB10J17CAH for automotive OEM programs requiring AEC-Q101 and ISO 7637-2 compliance. |
| P6SMB17CA | Same electrical specs (VWM = 17 V, VC = 27.6 V), but rated at 600 W PPK - 40% lower surge capacity | Approved for industrial/commercial use only; not validated for automotive pulse waveforms | Choose SMB10J17CAH where full 1000 W load-dump immunity per ISO 7637-2 Pulse 2b is required. |
Compared with SMBJ17CA and P6SMB17CA, SMB10J17CAH delivers verified automotive-grade robustness-AEC-Q101 qualification, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and 1000 W clamping-making it the only option qualified for under-hood and BCM applications demanding full automotive transient immunity.
Availability
SMB10J17CAH is available at Aetrix Electronics and suitable for automotive lighting control, industrial motor drive inputs, and DC power distribution units requiring stable component supply with full AEC-Q101 traceability and ISO 7637-2 validation.
Supply support for SMB10J17CAH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The SMB10JxxCAH series belongs to TSC's AEC-Q101-qualified transient suppression portfolio, engineered specifically for automotive power rail and signal-line protection against ISO 7637-2 and IEC 61000-4-2 threats.
FAQ
What does the 'CAH' suffix indicate in SMB10J17CAH?
The 'CAH' suffix denotes a bidirectional configuration with AEC-Q101 qualification and halogen-free construction. Unlike unidirectional 'AH' variants, SMB10J17CAH provides symmetrical clamping for both positive and negative transients without polarity sensitivity-essential for AC-coupled or floating interfaces. This matches the exact marking code 'LRC' shown in TSC's datasheet for SMB10J17CAH.
Is SMB10J17CAH suitable for ISO 7637-2 Pulse 2b load-dump protection?
Yes, SMB10J17CAH is explicitly validated for ISO 7637-2 Pulse 2b (load dump) per its datasheet. With 1000 W peak pulse power rating, 27.6 V clamping voltage at 36.2 A, and thermal design supporting 175°C junction temperature, it limits rail voltage during 12 V system load dumps to safe levels for downstream PMICs and microcontrollers.
What is the maximum clamping voltage of SMB10J17CAH and at what current is it specified?
The maximum clamping voltage of SMB10J17CAH is 27.6 V, measured at 36.2 A peak pulse current (IPPM) under the 10/1000 µs waveform defined in Fig. 3 of the datasheet. This value ensures predictable voltage limiting during standardized automotive transients and is confirmed in the Electrical Specifications table for the SMB10J17CAH row.
Does SMB10J17CAH require special PCB layout considerations due to its bidirectional nature?
No special polarity-aware layout is needed for SMB10J17CAH because it is inherently bidirectional-the anode and cathode terminals are functionally identical. However, thermal relief via ≥10 mm² copper pour connected to both terminals is recommended to leverage its 20°C/W junction-to-lead thermal resistance and sustain repeated 1000 W pulses without exceeding TJ(max) = 175°C.
How does SMB10J17CAH differ from SMBJ17CA in automotive applications?
SMB10J17CAH differs from SMBJ17CA by full AEC-Q101 qualification, explicit ISO 7637-2 Pulse 1/2a/2b/3a/3b validation, and tighter VBR tolerance (18.9–20.9 V vs. 18.9–22.1 V). These distinctions make SMB10J17CAH acceptable for Tier-1 automotive BOMs where SMBJ17CA is restricted to commercial/industrial use due to missing automotive stress-test documentation.
SMB10J17CAH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- 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)
SMB10J17CAH FAQ
1.How can I place an order for SMB10J17CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J17CAH 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 SMB10J17CAH reliable?
The price and inventory of SMB10J17CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J17CAH is usually 5 days.
3.What payment methods are accepted for SMB10J17CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J17CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J17CAH?
SMB10J17CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J17CAH 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 SMB10J17CAH?
For technical support, including SMB10J17CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J17CAH requirements.
6.How does Aetrix verify that SMB10J17CAH is sourced from the original manufacturer or authorized distributors?
All SMB10J17CAH 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 SMB10J17CAH meets industry standards.
7.What is the process for return or replacement of SMB10J17CAH?
All SMB10J17CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J17CAH, 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 SMB10J17CAH part is unused and in its original packaging.
Return procedure for SMB10J17CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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