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Vishay General Semiconductor - Diodes Division P6SMB47AHM3/I
- Part No.:
- P6SMB47AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47AHM3/I.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,173
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Product details
Overview
P6SMB47AHM3/I 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 IT = 1.0 mA), 600 W peak pulse power (10/1000 µs), and clamps to ≤64.8 V at 9.3 A peak pulse current - used for protecting MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB47AHM3/I datasheet, P6SMB47AHM3/I pinout, P6SMB47AHM3/I application, or P6SMB47AHM3/I equivalent, this page delivers verified electrical parameters, SMB (DO-214AA) package details, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and real-world protection use cases - all confirmed from Vishay's official 88370 document (Rev. 09-Jan-2024).
Technical Context
The P6SMB47AHM3/I operates as a unidirectional avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to ESD and lightning-induced surges. Its clamping behavior is defined by a low incremental surge resistance and stable VC/IPPM relationship under 10/1000 µs waveform conditions.
It is rated for TJ = –65 to +150 °C, meets J-STD-020 MSL Level 1 (260 °C peak reflow), and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101-qualified construction for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V at IT = 1.0 mA - defines precise avalanche initiation threshold for repeatable clamping onset |
| VWM | 40.2 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | ≤64.8 V at 9.3 A - clamped voltage during 600 W transient, limiting stress on downstream components |
| PPPM | 600 W (10/1000 µs) - surge energy handling capacity suitable for IEC 61000-4-5 Level 3/4 compliance |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, requiring PCB copper pad area ≥5.0 mm × 5.0 mm for full rating |
| IFSM | 100 A (8.3 ms half-sine) - surge current capability for short-duration inductive switch-off events |
| TJ max. | +150 °C - enables operation in under-hood automotive or high-temperature industrial environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with molded UL 94 V-0 compound; cathode indicated by band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge or bias |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates breakdown when reverse voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 surges without derating in standard PCB layouts |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage (<1 µA at VWM) over temperature and life |
| MSL Level 1, 260 °C peak reflow | Supports standard SMT assembly without moisture sensitivity concerns or baking requirements |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for global OEM supply chains and industrial equipment |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp spikes up to ±100 V. Use Value: Limits voltage seen by MCU and CAN transceivers to ≤64.8 V, preventing latch-up or gate oxide damage. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loops) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS connected across signal and return path to absorb sub-100 ns ESD pulses. Use Value: Maintains signal integrity by suppressing transients before they reach precision op-amps or ADC inputs. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
|
Use Scenario: Safeguarding AC/DC adapter primary-side rectifier outputs against switching surges. IC Role / Device Role / Timing Role: Mounted across bulk capacitor terminals to suppress turn-off spikes from transformer leakage inductance. Use Value: Prevents overvoltage failure of electrolytic capacitors and secondary-side controllers during transient overload. |
Use Scenario: Protecting -48 V telecom power distribution boards from lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Used in pairs (anode-to-rail, cathode-to-rail) for bidirectional clamping on DC feeds. Use Value: Withstands repetitive 600 W surges while maintaining <1 µA leakage at -40.2 V, ensuring low standby loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ47A-E3/5B | Same VBR range (44.7–49.4 V), but lower PPPM = 400 W; SMA package (DO-214AC), RθJA = 125 °C/W | Limited to lower-energy transients; less suitable for IEC 61000-4-5 Level 4 or automotive load dump | Select when cost or board space is constrained and surge energy remains below 400 W. |
| 1.5SMC47A | Same VBR, PPPM = 1500 W, but larger SMC (DO-214AB) package; RθJA = 65 °C/W | Higher power handling supports harsher environments but requires 30% more PCB area | Choose for industrial motor drives or railway systems where 1500 W surge margin is mandatory. |
Compared with SMAJ47A-E3/5B, P6SMB47AHM3/I delivers 50% higher surge power in a smaller footprint and automotive qualification; versus 1.5SMC47A, it trades 2.5× lower PPPM for 2× smaller size and MSL Level 1 compatibility - ideal for space-constrained AEC-Q101 designs.
Availability
P6SMB47AHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer power adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB47AHM3/I 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for stable clamping, low leakage, and AEC-Q101 compliance in compact SMB packages.
FAQ
What is the breakdown voltage tolerance of P6SMB47AHM3/I?
The P6SMB47AHM3/I has a specified breakdown voltage range of 44.7 V to 49.4 V at test current IT = 1.0 mA, representing a ±5% tolerance around the nominal 47 V rating. This tight VBR window ensures consistent clamping behavior across production lots and temperature ranges, critical for predictable protection in safety-critical automotive circuits using the P6SMB47AHM3/I.
Is P6SMB47AHM3/I suitable for bidirectional transient suppression?
No, P6SMB47AHM3/I is a unidirectional TVS diode - its cathode band marks the polarity-sensitive terminal, and it only clamps in reverse bias. For bidirectional protection, Vishay offers the P6SMB47CA variant. Using P6SMB47AHM3/I in bidirectional configurations risks forward conduction damage during negative transients, so system-level design must enforce correct orientation relative to the protected line's voltage polarity.
Does P6SMB47AHM3/I require derating at elevated ambient temperatures?
Yes, P6SMB47AHM3/I must be derated above TA = 25 °C per Figure 2 in Vishay's 88370 datasheet: peak pulse power decreases linearly to zero at TJ = 150 °C. At 85 °C ambient, the usable PPPM drops to ~420 W. Designers must calculate junction temperature rise using RθJA = 100 °C/W and ensure thermal pads meet the 0.2" × 0.2" (5.0 mm × 5.0 mm) copper requirement to maintain P6SMB47AHM3/I performance.
What does the "HM3" suffix indicate in P6SMB47AHM3/I?
The "HM3" suffix in P6SMB47AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification - confirming suitability for automotive applications. It also specifies tape-and-reel packaging (I = 13" reel, 3200 units), matte tin plating per J-STD-002, and JESD 201 Class 2 whisker resistance. This distinguishes P6SMB47AHM3/I from commercial-grade M3 or E3 variants lacking automotive validation.
How does P6SMB47AHM3/I compare to older P6SMB47A variants in reliability?
P6SMB47AHM3/I improves upon legacy P6SMB47A with halogen-free molding compound, enhanced moisture sensitivity level (MSL Level 1), and formal AEC-Q101 qualification - including stress testing for temperature cycling, HTRB, and ESD. These upgrades reduce field failure risk in automotive and industrial deployments, whereas earlier non-HM3 versions lack documented automotive qualification and may use brominated flame retardants not permitted in modern OEM BOMs.
P6SMB47AHM3/I 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/I FAQ
1.How can I place an order for P6SMB47AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47AHM3/I 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/I reliable?
The price and inventory of P6SMB47AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47AHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB47AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47AHM3/I?
P6SMB47AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47AHM3/I 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/I?
For technical support, including P6SMB47AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47AHM3/I requirements.
6.How does Aetrix verify that P6SMB47AHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB47AHM3/I 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/I meets industry standards.
7.What is the process for return or replacement of P6SMB47AHM3/I?
All P6SMB47AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47AHM3/I, 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/I part is unused and in its original packaging.
Return procedure for P6SMB47AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47AHM3/I Tags
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