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Vishay General Semiconductor - Diodes Division P6SMB47AHM3/H
- Part No.:
- P6SMB47AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47AHM3/H.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB47AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 47 V breakdown voltage (VBR min = 44.7 V, max = 49.4 V), 40.2 V standoff voltage (VWM), 64.8 V maximum clamping voltage at 9.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB47AHM3/H datasheet, P6SMB47AHM3/H pinout, P6SMB47AHM3/H application, or P6SMB47AHM3/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status (HM3 suffix), halogen-free RoHS compliance, thermal resistance (RθJA = 100 °C/W), and junction temperature range (–65 °C to +150 °C).
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage performance (<1 µA at VWM) and fast response time (<1 ns), enabling effective suppression of ESD and inductive switching transients.
The device uses a single PN junction structure with cathode band marking, rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its SMB package provides low-profile mounting and automated placement compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V - defines precise avalanche onset window for reliable overvoltage triggering |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 64.8 V at 9.3 A - clamping voltage during 600 W transient event; determines protected circuit's peak stress level |
| IPPM | 9.3 A - peak pulse current capability under 10/1000 µs waveform; sets surge handling margin |
| PPPM | 600 W - standardized surge power rating defining transient energy absorption capacity |
| TJ max | +150 °C - maximum junction temperature enabling operation in high-ambient industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; informs derating requirements on PCB |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; defines unidirectional conduction path |
| Cathode (banded end) | Avalanche conduction terminal | Connected to higher-potential side; conducts during overvoltage events to clamp voltage to VC |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without failure |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics applications requiring reliability certification |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for industrial and automotive OEM supply chains |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast transients, improving protection margin |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow processes without moisture sensitivity concerns |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 48 V DC input rails in programmable logic controllers (PLCs) against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed across input terminals to limit transient voltage to safe levels for downstream DC/DC converters. Use Value: Withstands 600 W surges and maintains VC ≤ 64.8 V, preventing damage to 75 V-rated input stages while supporting long-term reliability in harsh factory environments. |
Use Scenario: Safeguarding LIN bus interface circuits and microcontroller I/O pins in BCMs exposed to battery voltage fluctuations and ESD. IC Role / Device Role / Timing Role: Standoff protection element on 12 V supply rail and signal lines, activated only during overvoltage events >40.2 V. Use Value: AEC-Q101 qualification and –65 °C to +150 °C operation ensure functional safety compliance and field durability in under-hood automotive applications. |
| Telecom Remote Radio Unit (RRU) | Consumer Appliance Motor Drive Board |
|
Use Scenario: Shielding power management ICs and FET gate drivers in outdoor RRU enclosures from lightning-induced surges on AC/DC front-end inputs. IC Role / Device Role / Timing Role: Primary transient suppressor on secondary-side 48 V distribution network, coordinated with upstream MOVs and filters. Use Value: 64.8 V clamping voltage aligns with 60 V system design margins, and SMB footprint enables dense layout in space-constrained RF enclosures. |
Use Scenario: Protecting MCU reset lines and H-bridge gate drivers in washing machine motor control boards from commutation spikes. IC Role / Device Role / Timing Role: Localized clamping component placed adjacent to sensitive digital and analog inputs to suppress sub-100 ns transients. Use Value: Sub-1 ns response time and <1 µA leakage at 40.2 V preserve signal integrity and standby power budget in always-on appliance subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/5B | Same VBR range (44.7–49.4 V) but SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-power or space-constrained designs where thermal dissipation is less critical | Select when board area is constrained and peak surge duty cycle is low; verify thermal margin due to higher junction rise |
| 1.5SMC47A | Same electrical specs but SMC (DO-214AB) package - larger footprint, lower RθJA = 60 °C/W, higher IFSM = 200 A | Better suited for high-reliability industrial systems requiring enhanced surge endurance and thermal headroom | Choose for mission-critical 48 V systems needing extended surge lifetime and improved thermal stability under repeated transients |
Compared with SMAJ47A-E3/5B and 1.5SMC47A, the P6SMB47AHM3/H offers balanced surge capability, AEC-Q101 qualification, and SMB footprint - making it optimal for automotive-qualified industrial power modules where reliability, regulatory compliance, and moderate board area are jointly prioritized.
Availability
P6SMB47AHM3/H is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, telecom remote radio units, and consumer appliance motor drives requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for P6SMB47AHM3/H 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series is engineered for high-energy transient suppression in automotive, industrial, and telecom infrastructure - delivering standardized 600 W surge capability, AEC-Q101 variants, and robust packaging for demanding real-world environments.
FAQ
What is the breakdown voltage tolerance for P6SMB47AHM3/H?
The P6SMB47AHM3/H has a specified breakdown voltage range of 44.7 V to 49.4 V at 1.0 mA test current, representing ±10% tolerance around the nominal 47 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage protection design in 48 V systems where margin to downstream component ratings is critical. The P6SMB47AHM3/H datasheet confirms this range under "ELECTRICAL CHARACTERISTICS" at TA = 25 °C.
Is P6SMB47AHM3/H suitable for automotive applications?
Yes, the P6SMB47AHM3/H is AEC-Q101 qualified, as indicated by the "HM3" suffix denoting halogen-free, RoHS-compliant, and automotive-grade construction. It is validated for use in body electronics, infotainment power rails, and sensor interfaces where operating temperatures span –65 °C to +150 °C and reliability under vibration, thermal cycling, and surge stress is mandatory. The P6SMB47AHM3/H meets all stress tests defined in the AEC-Q101 standard for discrete semiconductors.
What does the "H" in P6SMB47AHM3/H signify?
The "H" in P6SMB47AHM3/H denotes the packaging configuration: 7-inch diameter plastic tape and reel, with 750 units per reel. This delivery format is optimized for high-volume SMT assembly lines using standard pick-and-place equipment. The full ordering code P6SMB47AHM3/H distinguishes it from alternate reels (e.g., "I" = 13-inch reel, 3200 units) and base variants (e.g., "E3" = commercial RoHS, "HM3" = automotive halogen-free RoHS). The P6SMB47AHM3/H part number uniquely identifies this specific reel configuration and qualification level.
How does P6SMB47AHM3/H compare to bidirectional TVS diodes like P6SMB47CA?
The P6SMB47AHM3/H is unidirectional and intended for DC line protection where polarity is fixed, offering lower leakage (<1 µA at VWM) and tighter VBR symmetry than bidirectional types. In contrast, P6SMB47CA provides symmetrical clamping for AC or floating signal lines but exhibits higher capacitance and dual-threshold behavior. Use P6SMB47AHM3/H on 48 V supply rails or microcontroller I/O with defined ground reference; select P6SMB47CA only when protecting differential buses or AC-coupled paths where polarity reversal occurs. Both share identical SMB package and 600 W rating.
What is the maximum clamping voltage of P6SMB47AHM3/H under surge conditions?
The P6SMB47AHM3/H has a maximum clamping voltage (VC) of 64.8 V at 9.3 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per JEDEC standards and represents the upper bound of voltage seen by protected circuitry during worst-case transient events. Designers must ensure downstream components (e.g., DC/DC controllers, gate drivers) have voltage ratings exceeding 64.8 V to maintain functional safety. The P6SMB47AHM3/H datasheet lists this parameter in the "ELECTRICAL CHARACTERISTICS" table for part number P6SMB47A.
P6SMB47AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 9.3A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB47AHM3/H FAQ
1.How can I place an order for P6SMB47AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47AHM3/H 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 P6SMB47AHM3/H reliable?
The price and inventory of P6SMB47AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47AHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB47AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47AHM3/H?
P6SMB47AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47AHM3/H 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 P6SMB47AHM3/H?
For technical support, including P6SMB47AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47AHM3/H requirements.
6.How does Aetrix verify that P6SMB47AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB47AHM3/H 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 P6SMB47AHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB47AHM3/H?
All P6SMB47AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47AHM3/H, 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 P6SMB47AHM3/H part is unused and in its original packaging.
Return procedure for P6SMB47AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47AHM3/H Tags
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