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Taiwan Semiconductor Corporation P6SMB47CAH
- Part No.:
- P6SMB47CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47CAH.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,962
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Product details
Overview
P6SMB47CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 47 V, clamping voltage of 64.8 V at 9.7 A peak pulse current, and DO-214AA (SMB) package. It provides robust ESD and electrical fast transient protection for automotive lighting control modules, industrial PLC I/O ports, and DC power rail inputs.
For engineers reviewing the P6SMB47CAH datasheet, P6SMB47CAH pinout, P6SMB47CAH application, or P6SMB47CAH equivalent, this device is selected for high-reliability bidirectional surge suppression in AEC-Q101-compliant systems requiring low leakage (<1 µA), fast sub-nanosecond response, and ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity.
Technical Context
The P6SMB47CAH implements a glass-passivated silicon junction optimized for bidirectional clamping across both polarities, with symmetrical VBR (44.7–49.4 V) and identical VC (64.8 V) under 10/1000 µs waveform. Its thermal design supports continuous operation up to +150 °C junction temperature, enabled by RθJC = 10 °C/W and RθJA = 55 °C/W.
It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, enabling direct use in lead-free reflow without baking. The device is rated for 100 A non-repetitive forward surge (IFSM) and exhibits <0.1% /°C VBR temperature coefficient - critical for stable clamping across automotive ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V - ensures reliable conduction onset within ±5% tolerance at 1 mA test current |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 64.8 V at 9.7 A - limits downstream voltage during 10/1000 µs transients to safe IC interface levels |
| PPPSM | 600 W - handles high-energy surges per ISO 7637-2 Pulse 1 (inductive load dump) without failure |
| IR @ VWM | <1 µA - minimizes standby power loss and avoids false triggering in high-impedance sensing circuits |
| TJ max | +150 °C - supports under-hood automotive placement and industrial enclosure mounting without derating |
| Package | DO-214AA (SMB) - 4.57 mm × 3.94 mm footprint compatible with standard SMT pick-and-place and IPC-7351B land patterns |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, cathode band marking polarity for unidirectional variants; P6SMB47CAH is bidirectional and marked with "MEJ" code - no functional polarity distinction between terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Surge current path | Both terminals conduct equally during positive or negative transients - no PCB orientation dependency |
| Case | Thermal path | Exposed copper pad on bottom enables direct thermal coupling to PCB copper pour for RθJA optimization |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress conditions |
| Glass passivated junction | Eliminates surface contamination risk and ensures long-term VBR stability under humid or contaminated environments |
| ISO 7637-2 compliance | Guarantees immunity to real-world vehicle electrical disturbances: Pulse 1 (load dump), Pulse 2a (switching transients), Pulse 3b (capacitive coupling) |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow - reduces manufacturing cost and avoids moisture-induced popcorning |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU - supports green manufacturing and export compliance |
Applications
| Automotive LED Headlamp Driver Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protects LED driver ICs from load-dump transients (ISO 7637-2 Pulse 1) during battery disconnect/reconnect events in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input rails to clamp voltage spikes before they reach buck controller and gate drivers. Use Value: Limits rail voltage to ≤64.8 V during 600 W surges, preventing overvoltage damage to 65 V-rated MOSFETs and logic interfaces. | Use Scenario: Shields 24 V digital input channels from EFT bursts (IEC 61000-4-4) and inductive kickback from solenoid actuation in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient suppressor located at connector entry point, ahead of optocoupler or Schmitt trigger input stage. Use Value: Sub-1 ns response time ensures clamping initiates before EFT edges propagate into signal conditioning circuitry. |
| DC Power Supply Rail Protection | USB-C Port ESD Protection |
Use Scenario: Safeguards 48 V PoE++ or telecom power distribution boards against lightning-induced surges coupled via long cable runs. IC Role / Device Role / Timing Role: Primary surge arrestor mounted directly at board edge connector, shunting energy to chassis ground. Use Value: 600 W peak power rating sustains multiple 10/1000 µs pulses without degradation - critical for field-deployed infrastructure. | Use Scenario: Provides secondary-level ESD protection on VBUS line of USB-C receptacles subjected to ±15 kV contact discharge (IEC 61000-4-2). IC Role / Device Role / Timing Role: Back-to-back TVS configuration (enabled by CAH suffix) clamps both positive and negative ESD events symmetrically. Use Value: 1 µA leakage at 40.2 V prevents interference with USB-C PD negotiation timing and voltage detection accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47CA | Same DO-214AA package, identical VBR (44.7–49.4 V), but lower PPPSM = 600 W (same rating) and higher VC = 77.0 V | Higher clamping voltage reduces margin for 65 V-rated downstream components | Select P6SMB47CAH when tighter clamping (64.8 V vs. 77.0 V) is required to protect low-voltage tolerant ICs |
| 1.5KE47CA | Through-hole DO-201 package, same VBR, but larger footprint and lower IPPM (12.5 A vs. 9.7 A) due to higher VC (74 V) | Not suitable for high-density SMT layouts; requires manual assembly or wave soldering | Choose P6SMB47CAH for automated production, space-constrained designs, and AEC-Q101 compliance where 1.5KE47CA lacks qualification |
Compared with SMBJ47CA and 1.5KE47CA, the P6SMB47CAH delivers superior clamping performance (64.8 V), AEC-Q101 qualification, and SMT manufacturability - making it optimal for next-generation automotive and industrial electronics where reliability, size, and regulatory alignment are jointly critical.
Availability
P6SMB47CAH is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, and DC power rail surge suppression requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for P6SMB47CAH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power devices since 1979.
The P6SMB series targets high-reliability transient suppression in automotive and industrial environments - designed specifically to meet AEC-Q101, ISO 7637-2, and RoHS/halogen-free mandates without trade-offs in surge capability or thermal performance.
FAQ
What is the breakdown voltage range of the P6SMB47CAH?
The P6SMB47CAH has a guaranteed breakdown voltage range of 44.7 V to 49.4 V at 1 mA test current, measured per ANSI/IEEE C62.35. This tight 10% tolerance ensures predictable clamping onset across production lots and temperature extremes, supporting robust design margins in safety-critical automotive and industrial applications where the P6SMB47CAH is deployed.
Is the P6SMB47CAH suitable for automotive applications?
Yes, the P6SMB47CAH is AEC-Q101 qualified and explicitly tested for automotive-grade reliability, including temperature cycling, high-temperature reverse bias, and ESD. Its compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b makes it appropriate for engine control units, body electronics, and ADAS power domains - all key use cases for the P6SMB47CAH in modern vehicles.
How does the P6SMB47CAH differ from unidirectional variants like P6SMB47H?
The P6SMB47CAH is bidirectional with symmetrical clamping in both polarities, while P6SMB47H is unidirectional and conducts only in reverse bias. The CAH suffix indicates dual-junction construction enabling equal VBR and VC for positive and negative transients - a critical distinction for AC-coupled or floating-rail protection where the P6SMB47CAH eliminates need for back-to-back diode placement.
What is the maximum clamping voltage of the P6SMB47CAH under surge conditions?
The P6SMB47CAH clamps to a maximum of 64.8 V at 9.7 A peak pulse current (10/1000 µs waveform). This value is measured and guaranteed per datasheet specifications, ensuring downstream components see no more than 64.8 V during standardized surge events - a key parameter that defines system-level overvoltage protection capability of the P6SMB47CAH.
Does the P6SMB47CAH require special handling during PCB assembly?
No - the P6SMB47CAH is rated MSL Level 1 per J-STD-020, meaning it can be stored indefinitely at ambient conditions and placed directly into standard lead-free reflow profiles without pre-baking. Its matte tin-plated leads comply with J-STD-002 for solderability, simplifying manufacturing integration for the P6SMB47CAH in high-volume SMT lines.
P6SMB47CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB47CAH FAQ
1.How can I place an order for P6SMB47CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47CAH 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 P6SMB47CAH reliable?
The price and inventory of P6SMB47CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47CAH is usually 5 days.
3.What payment methods are accepted for P6SMB47CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47CAH?
P6SMB47CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47CAH 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 P6SMB47CAH?
For technical support, including P6SMB47CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47CAH requirements.
6.How does Aetrix verify that P6SMB47CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB47CAH 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 P6SMB47CAH meets industry standards.
7.What is the process for return or replacement of P6SMB47CAH?
All P6SMB47CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47CAH, 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 P6SMB47CAH part is unused and in its original packaging.
Return procedure for P6SMB47CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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