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Vishay General Semiconductor - Diodes Division P6SMB27AHM3/H
- Part No.:
- P6SMB27AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27AHM3/H.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,089
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Product details
Overview
P6SMB27AHM3/H from Vishay General Semiconductor is a unidirectional 27 V transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 600 W peak pulse power (10/1000 μs), 37.5 V maximum clamping voltage at 16.0 A peak pulse current, and 23.1 V stand-off voltage - deployed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients in industrial and automotive electronics.
For engineers reviewing the P6SMB27AHM3/H datasheet, P6SMB27AHM3/H pinout, P6SMB27AHM3/H application, or P6SMB27AHM3/H equivalent, this page delivers verified electrical specs, thermal behavior, AEC-Q101 qualification status, clamping performance under surge conditions, and direct alternative part comparisons for robust ESD/surge protection design-in.
Technical Context
The P6SMB27AHM3/H uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance, enabling precise voltage clamping during transient events. Its unidirectional polarity features a cathode band marking and supports reverse-biased operation only - no bidirectional conduction capability.
Designed for surface-mount automated placement on PCBs with 0.2" × 0.2" copper pads per terminal, it meets MSL Level 1 per J-STD-020 and operates across -65 °C to +150 °C junction temperature range. The halogen-free, RoHS-compliant HM3 suffix confirms AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 23.1 V - maximum continuous reverse operating voltage before clamping initiates |
| Breakdown Voltage (VBR) | 25.7–28.4 V at 1.0 mA test current - defines onset of avalanche conduction |
| Clamping Voltage (VC) | 37.5 V at 16.0 A IPPM - limits downstream voltage stress during 10/1000 μs surge |
| Peak Pulse Power (PPPM) | 600 W - energy-handling capacity under standardized 10/1000 μs waveform |
| Peak Pulse Current (IPPM) | 16.0 A - maximum non-repetitive surge current supported without failure |
| Junction Temperature Range | -65 °C to +150 °C - enables deployment in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive applications per HM3 suffix designation |
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. Cathode marked by single band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse voltage reference node | Connected to system ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Avalanche conduction terminal / clamping output | Connected to protected line (e.g., I/O, power rail); clamps to VC when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power rating | Supports high-energy transients common in automotive load-dump and inductive switch-off events |
| 37.5 V clamping voltage at 16 A | Ensures protected ICs remain below absolute maximum ratings during 10/1000 μs surges |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics including engine control units and ADAS sensor interfaces |
| MSL Level 1 moisture sensitivity | Enables standard reflow assembly without pre-baking, reducing manufacturing complexity |
| Glass-passivated junction | Improves long-term stability and leakage performance versus epoxy-passivated alternatives |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before reaching sensitive input stages. Use Value: Maintains signal integrity under 10/1000 μs surges up to 16 A while holding clamped voltage ≤37.5 V - within safe margin for 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding digital and analog I/O channels on programmable logic controller (PLC) modules exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on each I/O pin to absorb repetitive inductive spikes without degradation. Use Value: 600 W peak power handling and -65 °C to +150 °C operation ensure reliability in harsh factory-floor environments with ambient temperatures up to 85 °C. |
| Power Supply Rail Clamping | Consumer Device USB/Signal Line Protection |
Use Scenario: Secondary overvoltage protection on 24 V DC input rails of motor drives and power supplies after primary filtering. IC Role / Device Role / Timing Role: Fast-response clamping device shunting surge energy to ground during voltage overshoot events. Use Value: 23.1 V stand-off allows stable operation under nominal 24 V supply with margin, while 37.5 V clamping prevents damage to downstream regulators and controllers. |
Use Scenario: ESD and surge suppression on USB 2.0 data lines and auxiliary sensor interfaces in smart home hubs and portable devices. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed inline with signal traces to limit transient coupling. Use Value: Sub-1 ns response time and <1 μA leakage at 23.1 V preserve signal fidelity and battery life in always-on consumer electronics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ27A-E3/5B | Same 27 V VWM, 37.5 V VC, but 400 W PPPM rating and SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; less suitable for automotive load-dump where 600 W is required | Select when board space is constrained and surge energy remains ≤400 W |
| 1.5SMC27AHE3_A/H | Same 27 V rating and 600 W PPPM, but SMC (DO-214AB) package - larger footprint, lower RθJA (60 °C/W vs. 100 °C/W) | Better thermal performance under sustained surge duty; requires more PCB area | Choose for high-reliability industrial systems needing enhanced thermal margin and longer surge endurance |
Compared with P6SMB27AHM3/H, SMAJ27A-E3/5B offers space savings at reduced surge robustness, while 1.5SMC27AHE3_A/H trades compactness for superior thermal dissipation - making P6SMB27AHM3/H the optimal balance of AEC-Q101 compliance, 600 W capability, and SMB footprint for automotive and industrial edge nodes.
Availability
P6SMB27AHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and 24 V power rail clamping requiring stable component supply, full traceability, and lifecycle continuity support.
Supply support for P6SMB27AHM3/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 protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets cost-effective, high-power transient suppression in automotive, industrial, and telecom systems - engineered for rapid response, repeatable clamping, and AEC-Q101 compliance in surface-mount form factors.
FAQ
What is the clamping voltage of P6SMB27AHM3/H at its rated peak pulse current?
The P6SMB27AHM3/H has a maximum clamping voltage (VC) of 37.5 V at 16.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value ensures protected circuitry remains within safe operating limits during surge events. The P6SMB27AHM3/H achieves this with low incremental surge resistance and a glass-passivated junction for stable performance across temperature.
Is P6SMB27AHM3/H qualified for automotive applications?
Yes, P6SMB27AHM3/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix - indicating halogen-free, RoHS-compliant construction and full automotive-grade reliability testing. It is approved for use in engine control modules, body electronics, and ADAS sensor interfaces where transient immunity and long-term stability are critical. The P6SMB27AHM3/H operates from -65 °C to +150 °C and meets MSL Level 1 for reflow compatibility.
What does the "H" in P6SMB27AHM3/H signify in the ordering code?
The "H" in P6SMB27AHM3/H denotes the packaging configuration: 7-inch diameter plastic tape and reel, with 750 units per reel. This format supports high-volume automated SMT placement. The full suffix "HM3/H" specifies halogen-free, RoHS-compliant, AEC-Q101-qualified construction (HM3) in 7" reel packaging (H). The P6SMB27AHM3/H is not supplied in bulk or ammo-pack formats.
How does P6SMB27AHM3/H differ from bidirectional variants like P6SMB27CHM3/H?
P6SMB27AHM3/H is unidirectional - it conducts only in reverse bias above VBR and features a cathode band marking; P6SMB27CHM3/H is bidirectional with symmetrical clamping in both polarities and no polarity marking. The P6SMB27AHM3/H offers tighter leakage control and is preferred for DC rail or signal-line protection where polarity is fixed. Bidirectional versions suit AC-coupled or floating lines but exhibit higher ID at VWM.
What is the thermal resistance of P6SMB27AHM3/H, and how does it affect layout?
The P6SMB27AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperature under repeated surges, PCB layout must adhere to this pad size minimum - undersized pads increase thermal impedance and risk premature failure. The P6SMB27AHM3/H also has RθJL = 20 °C/W, confirming efficient heat transfer to PCB copper.
P6SMB27AHM3/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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
P6SMB27AHM3/H FAQ
1.How can I place an order for P6SMB27AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27AHM3/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 P6SMB27AHM3/H reliable?
The price and inventory of P6SMB27AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB27AHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB27AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27AHM3/H?
P6SMB27AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27AHM3/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 P6SMB27AHM3/H?
For technical support, including P6SMB27AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27AHM3/H requirements.
6.How does Aetrix verify that P6SMB27AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB27AHM3/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 P6SMB27AHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB27AHM3/H?
All P6SMB27AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27AHM3/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 P6SMB27AHM3/H part is unused and in its original packaging.
Return procedure for P6SMB27AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27AHM3/H Tags
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