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Taiwan Semiconductor Corporation P6SMB47AH
- Part No.:
- P6SMB47AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47AH.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,213
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Product details
Overview
P6SMB47AH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a standoff voltage of 40.2 V, breakdown voltage range 44.7–49.4 V, and clamping voltage of 64.8 V at 9.7 A peak pulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients in DO-214AA (SMB) package.
For engineers reviewing the P6SMB47AH datasheet, P6SMB47AH pinout, P6SMB47AH application, or P6SMB47AH equivalent, key selection criteria include unidirectional polarity, 600W peak pulse power rating, 1 μA max reverse leakage at VWM, AEC-Q101 qualification, and compliance with ISO 7637-2 for automotive EFT and load-dump immunity.
Technical Context
The P6SMB47AH employs a glass-passivated silicon junction optimized for fast transient response (<1.0 ps rise time from 0 V to VBR(min)) and low clamping ratio (VC/VBR ≈ 1.35). Its thermal design supports 150°C maximum junction temperature with RθJC = 10°C/W and RθJA = 55°C/W, enabling reliable operation under repetitive surge conditions when mounted on standard PCB copper areas.
It is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) and exhibits <1 μA reverse leakage above 10 V, meeting stringent ESD and electrical fast transient (EFT) immunity requirements per IEC 61000-4-2/4-4. The device is unidirectional, with cathode band marking and matte tin-plated leads compliant with J-STD-002 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40.2 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC/AC rail protection threshold. |
| VBR(min–max) | 44.7–49.4 V @ 1 mA - Confirmed breakdown range ensures predictable turn-on during transients without premature conduction. |
| VC@IPPM | 64.8 V @ 9.7 A - Clamping voltage limits downstream IC stress during 10/1000 μs surge; enables robust 24 V system protection. |
| PPPSM | 600 W - Peak pulse power handling capacity per 10/1000 μs waveform; supports high-energy automotive load dump events. |
| IR | <1 μA @ 40.2 V - Ultra-low reverse leakage preserves battery life and signal integrity in always-on circuits. |
| TJ(max) | 150 °C - Maximum junction temperature rating allows operation in under-hood automotive environments and industrial enclosures. |
| Package | DO-214AA (SMB) - Standardized surface-mount outline with 0.090 g mass, UL 94V-0 molding, and JESD201 Class 2 whisker resistance. |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with cathode band marking; matte tin-plated leads; polarity indicated by single black band on cathode end; weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-impedance return path; carries full surge current during clamping. |
| Cathode | High-side connection point | Connected to protected line (e.g., 24 V rail); reverse-biased during normal operation; conducts during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives; critical for under-hood durability. |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) waveforms without derating. |
| Fast response time | <1.0 ps from 0 V to VBR(min) - Enables clamping before sensitive downstream logic or analog circuitry sustains damage. |
| Moisture sensitivity level 1 | No floor-life limitation or bake requirement prior to reflow; simplifies SMT assembly and inventory management. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 24 V supply lines in engine control units (ECUs), body control modules (BCMs), and ADAS sensors from load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power rail and chassis ground to shunt transient energy away from LDOs, microcontrollers, and CAN transceivers. Use Value: Limits voltage excursion to ≤64.8 V during 600 W surges, preventing latch-up or gate oxide rupture in 3.3 V/5 V logic powered from the same rail. | Use Scenario: Safeguarding digital input channels of programmable logic controllers (PLCs) connected to 24 V field sensors and actuators subject to wiring-induced transients. IC Role / Device Role / Timing Role: Front-end transient suppressor on each discrete input channel, placed before optocoupler or Schmitt trigger input stage. Use Value: Maintains <1 μA leakage at 40.2 V, avoiding false triggering of high-impedance inputs while clamping 10/1000 μs surges to safe levels for downstream isolation components. |
| LED Driver Overvoltage Clamp | DC-DC Converter Input Protection |
Use Scenario: Shielding constant-current LED drivers in commercial lighting systems from mains-coupled surges and hot-plug transients. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals of buck or boost LED driver ICs operating from 36–48 V bus. Use Value: Withstands 100 A 8.3 ms forward surge, enabling survival of accidental 120 VAC miswiring events without catastrophic failure or fire hazard. | Use Scenario: Securing input stage of isolated DC-DC converters used in medical or test equipment powered from lab bench supplies or battery banks. IC Role / Device Role / Timing Role: Primary overvoltage clamp ahead of input filter capacitor and primary-side controller IC. Use Value: Provides 600 W surge margin with 10°C/W junction-to-case thermal resistance, allowing effective heat dissipation into PCB copper pour during repeated transient events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ48A | Same DO-214AC (SMA) package; 48 V VWM, 64.8 V VC; lower 400 W PPPSM. | Limited to lower-energy transients; not AEC-Q101 qualified; lacks ISO 7637-2 validation. | Select SMAJ48A only for cost-sensitive consumer applications where automotive qualification and 600 W rating are unnecessary. |
| 1.5SMC47A | DO-214AB (SMC) package; 47 V VWM, 69.4 V VC; 1500 W PPPSM; higher thermal mass. | Requires larger PCB footprint; higher clamping voltage reduces margin for 48 V systems; suitable for industrial mains-level protection. | Choose 1.5SMC47A when surge energy exceeds 600 W or when board layout permits larger SMC footprint and higher VC is acceptable. |
Compared with SMAJ48A and 1.5SMC47A, the P6SMB47AH uniquely balances AEC-Q101 qualification, ISO 7637-2 compliance, 600 W capability, and SMB footprint-making it optimal for space-constrained automotive and industrial 24–48 V rail protection where reliability and standardization are mandatory.
Availability
P6SMB47AH is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, LED drivers, and DC-DC converter designs requiring stable component supply, AEC-Q101 assurance, and ISO 7637-2 validated transient immunity.
Supply support for P6SMB47AH 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, with global distribution and AEC-Q101 certification capabilities.
The P6SMB47AH belongs to TSC's P6SMBx(A)H series of surface-mount TVS diodes engineered specifically for automotive and industrial transient suppression-designed to meet stringent ISO 7637-2, AEC-Q101, and RoHS/Halogen-free requirements in compact SMB packages.
FAQ
What is the polarity configuration of the P6SMB47AH?
The P6SMB47AH is a unidirectional TVS diode, with cathode identified by a single black band on the DO-214AA (SMB) package. It conducts only when the cathode is biased positive relative to the anode-ideal for protecting positive power rails referenced to ground. This polarity must be observed during PCB layout to ensure proper clamping behavior during overvoltage events.
Does the P6SMB47AH meet automotive qualification standards?
Yes, the P6SMB47AH is AEC-Q101 qualified and explicitly tested to meet ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient waveforms. Its qualification covers temperature cycling, high-temperature reverse bias (HTRB), and mechanical robustness-ensuring suitability for under-hood and chassis-mounted automotive electronics where reliability is mission-critical.
What is the maximum clamping voltage of the P6SMB47AH and at what current is it specified?
The P6SMB47AH has a maximum clamping voltage (VC) of 64.8 V, measured at a peak pulse current (IPPM) of 9.7 A using the standardized 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is critical for ensuring downstream ICs remain within absolute maximum ratings.
How does the P6SMB47AH compare to bidirectional variants like P6SMB47CAH?
The P6SMB47AH is unidirectional, whereas P6SMB47CAH is bidirectional with symmetrical clamping in both polarities. The P6SMB47AH offers lower leakage (<1 μA at 40.2 V) and tighter VBR tolerance (44.7–49.4 V) than its bidirectional counterpart, making it preferred for DC power rail protection. Bidirectional versions are reserved for AC signal lines or floating buses where polarity reversal may occur.
Is the P6SMB47AH compatible with lead-free reflow soldering processes?
Yes, the P6SMB47AH features matte tin-plated leads qualified per J-STD-002 for solderability and is rated for moisture sensitivity level 1 (MSL-1) per J-STD-020-meaning it can be stored indefinitely at ambient conditions and withstand standard Pb-free reflow profiles (e.g., JEDEC J-STD-020, peak 260°C) without baking or special handling.
P6SMB47AH 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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB47AH FAQ
1.How can I place an order for P6SMB47AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47AH 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 P6SMB47AH reliable?
The price and inventory of P6SMB47AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47AH is usually 5 days.
3.What payment methods are accepted for P6SMB47AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47AH?
P6SMB47AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47AH 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 P6SMB47AH?
For technical support, including P6SMB47AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47AH requirements.
6.How does Aetrix verify that P6SMB47AH is sourced from the original manufacturer or authorized distributors?
All P6SMB47AH 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 P6SMB47AH meets industry standards.
7.What is the process for return or replacement of P6SMB47AH?
All P6SMB47AH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47AH, 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 P6SMB47AH part is unused and in its original packaging.
Return procedure for P6SMB47AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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