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Vishay General Semiconductor - Diodes Division P6SMB47AHM3_A/H
- Part No.:
- P6SMB47AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47AHM3_A/H.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,294
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Product details
Overview
P6SMB47AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on power and signal lines. It features a 47 V breakdown voltage (VBR = 44.7–49.4 V at 1 mA), 40.2 V stand-off voltage (VWM), 64.8 V maximum clamping voltage (VC) 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 automotive and industrial power supplies.
For engineers reviewing the P6SMB47AHM3_A/H datasheet, P6SMB47AHM3_A/H pinout, P6SMB47AHM3_A/H application, or P6SMB47AHM3_A/H equivalent, this part delivers AEC-Q101-qualified transient suppression in SMB (DO-214AA) package with halogen-free RoHS compliance, low incremental surge resistance, and fast response time - critical for ESD and load-switching surge protection in space-constrained designs.
Technical Context
The P6SMB47AHM3_A/H operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 μA at VWM), while thermal resistance (RθJA = 100 °C/W) supports operation up to 150 °C junction temperature under defined PCB pad layout (0.2" × 0.2" copper).
It meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and is rated for repetitive 0.01% duty cycle pulses. The cathode band denotes polarity, and its bidirectional counterpart would use "CA" suffix (e.g., P6SMB47CHM3_A/H), which is not applicable here.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 44.7–49.4 V at 1 mA - defines precise clamping onset threshold for overvoltage events |
| Stand-off Voltage VWM | 40.2 V - maximum continuous reverse voltage before leakage exceeds 1 μA |
| Clamping Voltage VC | 64.8 V at 9.3 A IPPM - limits downstream voltage during 600 W transient, protecting 48 V systems |
| Peak Pulse Power PPPM | 600 W (10/1000 μs) - sustains high-energy surges without failure under standard test waveform |
| Package | SMB (DO-214AA) - surface-mount footprint (4.57 mm × 3.94 mm) compatible with automated placement |
| AEC-Q101 Qualified | Yes (HM3 suffix) - validated for automotive-grade reliability including temperature cycling and humidity testing |
| RoHS & Halogen-Free | Compliant per Vishay base P/N-HM3 - meets environmental requirements for industrial and automotive production |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band on body; no marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-biased side) | Connected to lower-potential node (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line (e.g., 48 V rail or signal input); conducts when Vin > VBR |
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) on 48 V buses |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream components during transient events |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking, reducing manufacturing overhead in SMT lines |
| Glass passivated junction | Ensures long-term stability of VBR and leakage performance across temperature and life cycles |
| AEC-Q101 qualification (HM3) | Validates suitability for automotive powertrain, body control, and ADAS subsystems |
Applications
| Automotive Body Control Module (BCM) | Industrial 48 V DC Power Supply |
|---|---|
Use Scenario: Protects microcontroller I/O and CAN transceiver power rails from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 48 V supply and local LDO input to clamp spikes before regulation. Use Value: Limits voltage to ≤64.8 V during 600 W surges, preventing LDO overvoltage failure and ensuring system uptime. |
Use Scenario: Shields PLC analog input front-end from inductive switching noise on shared 48 V bus. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal conditioning path to suppress fast-rising transients before ADC driver stage. Use Value: Maintains <1 μA leakage at 40.2 V, preserving measurement accuracy while clamping >44.7 V events within nanoseconds. |
| Telecom Remote Radio Unit (RRU) | Consumer Smart Home Gateway |
Use Scenario: Safeguards Ethernet PHY power pins against lightning-induced surges coupled via PoE injectors. IC Role / Device Role / Timing Role: Primary clamping device on +48 V PoE input, coordinated with upstream fuse and downstream filter. Use Value: Withstands 9.3 A peak pulse current and recovers fully, enabling single-stage protection without derating. |
Use Scenario: Guards USB-C PD controller VBUS line against hot-swap and cable ESD events. IC Role / Device Role / Timing Role: Fast-response TVS on 20–48 V negotiated VBUS rail, placed adjacent to connector. Use Value: 64.8 V clamping ensures USB PD ICs (rated to 30–40 V abs max) remain within safe operating area during 8 kV contact ESD. |
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-E3/52 | Same VBR range (44.7–49.4 V), but 400 W PPPM rating and SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge energy is ≤400 W |
| 1.5SMC47A | Same electrical specs but SMC (DO-214AB) package - larger body, lower RθJA (80 °C/W), higher IFSM (200 A) | Better thermal handling for high-repetition surges; requires larger PCB area | Choose for industrial motor drives where thermal margin and surge repetition matter more than size |
Compared with SMAJ47A-E3/52 and 1.5SMC47A, the P6SMB47AHM3_A/H uniquely balances 600 W surge capability, AEC-Q101 qualification, SMB footprint, and halogen-free compliance - making it optimal for automotive and high-reliability 48 V embedded systems where space, reliability, and regulatory alignment are jointly critical.
Availability
P6SMB47AHM3_A/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial 48 V power distribution, and telecom remote radio units requiring stable component supply with full traceability and lifecycle management.
Supply support for P6SMB47AHM3_A/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, MOSFETs, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB series was engineered for high-energy transient suppression in automotive, industrial, and telecom infrastructure - delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 and RoHS/halogen-free variants.
FAQ
What is the maximum clamping voltage of the P6SMB47AHM3_A/H under peak pulse conditions?
The P6SMB47AHM3_A/H has a maximum clamping voltage (VC) of 64.8 V at 9.3 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and defines the upper voltage limit imposed on protected circuitry during a 600 W transient event. The P6SMB47AHM3_A/H maintains this clamping performance consistently due to its glass-passivated junction and low incremental surge resistance.
Is the P6SMB47AHM3_A/H qualified for automotive applications?
Yes, the P6SMB47AHM3_A/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's P6SMB series datasheet (Rev. 09-Jan-2024). This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock - validating its use in automotive body control modules, infotainment power supplies, and ADAS sensor interfaces. The P6SMB47AHM3_A/H meets the same reliability requirements as other HM3-suffixed parts in the series.
What does the "HM3" suffix indicate in P6SMB47AHM3_A/H?
The "HM3" suffix in P6SMB47AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade E3/M3 versions and confirms compliance with automotive environmental and reliability standards. The "_A/H" further specifies packaging: "A" indicates tape-and-reel format per 7" diameter reel (750 pcs), and "H" is the reel orientation code. The P6SMB47AHM3_A/H thus combines automotive-grade reliability with eco-friendly materials and SMT-ready packaging.
How does the P6SMB47AHM3_A/H compare to bidirectional TVS diodes like P6SMB47CHM3_A/H?
The P6SMB47AHM3_A/H is unidirectional and conducts only in reverse bias above VBR, making it suitable for DC power line protection where polarity is fixed. In contrast, P6SMB47CHM3_A/H is bidirectional - symmetric in both directions - and used for AC or floating signal lines (e.g., RS-485, CAN). They share identical VBR, VC, and PPPM ratings, but the P6SMB47AHM3_A/H offers lower leakage at VWM and requires correct polarity orientation during placement, unlike the polarity-agnostic P6SMB47CHM3_A/H.
What PCB layout guidance applies to the P6SMB47AHM3_A/H for optimal thermal performance?
For optimal thermal performance, the P6SMB47AHM3_A/H must be mounted on minimum recommended copper pad areas: 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal, per Vishay datasheet Figure 6 and thermal characterization. This pad size achieves the specified RθJA of 100 °C/W. Reducing pad area increases junction temperature rise during surge events and may compromise reliability. The P6SMB47AHM3_A/H also requires adherence to J-STD-020 MSL Level 1 reflow profile, with peak temperature ≤260 °C.
P6SMB47AHM3_A/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:
- Obsolete
- 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_A/H FAQ
1.How can I place an order for P6SMB47AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47AHM3_A/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_A/H reliable?
The price and inventory of P6SMB47AHM3_A/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_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB47AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47AHM3_A/H?
P6SMB47AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47AHM3_A/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_A/H?
For technical support, including P6SMB47AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47AHM3_A/H requirements.
6.How does Aetrix verify that P6SMB47AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB47AHM3_A/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_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB47AHM3_A/H?
All P6SMB47AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47AHM3_A/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_A/H part is unused and in its original packaging.
Return procedure for P6SMB47AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47AHM3_A/H Tags
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