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Vishay General Semiconductor - Diodes Division P6SMB11AHM3/H
- Part No.:
- P6SMB11AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11AHM3/H.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,686
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Product details
Overview
P6SMB11AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 9.4 V stand-off voltage (VWM), 10.5–11.6 V breakdown voltage (VBR) at 1 mA test current, 15.6 V maximum clamping voltage at 38.5 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB11AHM3/H datasheet, P6SMB11AHM3/H pinout, P6SMB11AHM3/H application, or P6SMB11AHM3/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), halogen-free RoHS compliance, and real-world protection use cases - all confirmed from Vishay's official P6SMB series documentation (Doc. #88370, Rev. 09-Jan-2024).
Technical Context
The P6SMB11AHM3/H operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast transient suppression (<1 ns response time implied by TVS architecture). Its glass-passivated junction ensures stable breakdown behavior under repetitive surge conditions, while the SMB package supports automated placement and meets J-STD-020 MSL Level 1 (260 °C peak reflow).
It delivers 600 W peak pulse power per 10/1000 μs waveform at TA = 25 °C, derated linearly above 25 °C per Fig. 2, with 5.0 W steady-state power dissipation on infinite heatsink at 50 °C. Junction temperature range spans −65 °C to +150 °C, and it exhibits 0.075 %/°C temperature coefficient of VBR - critical for precision clamping stability across automotive and industrial ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 9.4 V - Maximum continuous reverse voltage before leakage exceeds 5 μA; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 10.5–11.6 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering during overvoltage events without premature conduction. |
| VC (Clamping) | 15.6 V at 38.5 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; must be below downstream device absolute max rating. |
| PPPM | 600 W - Sustains single 10/1000 μs transients up to this energy level; enables robust protection against ESD, load dump, and inductive switching spikes. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs board-level thermal design for sustained surge duty cycles. |
| TJ max | +150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and high-temperature industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, temperature cycling, and HAST; suffix HM3 denotes halogen-free, RoHS-compliant AEC-Q101 version. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line (e.g., VCC or signal); conducts surge current to ground when voltage exceeds VBR. |
| Anode (unmarked end) | Reference/return path | Typically tied to system ground or low-impedance return; completes clamping path during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against high-energy transients like ISO 7637-2 Load Dump (up to 120 V, 400 ms) when combined with upstream impedance. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD >15 kV), preserving signal integrity on data lines. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture-induced failure; eliminates pre-bake requirement for production assembly. |
| Halogen-free & RoHS-compliant (HM3) | Fulfills environmental compliance for automotive ECUs and industrial control systems targeting IEC 61249-2-21 and JEDEC J-STD-609A Class 1. |
| −65 °C to +150 °C operating range | Validates use in extended-temperature applications such as engine control modules, solar inverters, and railway signaling equipment. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load dump transients on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role: Unidirectional TVS placed between VBAT and GND, upstream of DC/DC converter input. Use Value: Clamps 12 V rail to ≤15.6 V during 120 V/400 ms load dump events, preventing damage to LDOs and microcontrollers rated for 16 V absolute max. |
Use Scenario: Protecting analog output pins of pressure sensors exposed to motor drive noise in factory automation PLCs. IC Role / Device Role: TVS mounted directly at sensor connector, shunting induced surges on 4–20 mA loop lines. Use Value: Limits transient voltage to 15.6 V at 38.5 A, ensuring sensor amplifier inputs remain within ±20 V common-mode range and avoiding latch-up. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Stage |
|
Use Scenario: Safeguarding PoE-powered switch ports against lightning-induced surges on 48 V DC input rails. IC Role / Device Role: Primary clamping device on secondary-side DC bus after isolation transformer and bridge rectifier. Use Value: Absorbs 600 W pulses without degradation, maintaining <5 μA leakage at 41 V nominal, enabling efficient standby power design. |
Use Scenario: Shielding gate drivers in BLDC motor controllers from inductive kickback during PWM commutation. IC Role / Device Role: TVS across half-bridge FET source-drain nodes, referenced to local ground plane. Use Value: Responds in <1 ns to clamp 100 V+ spikes to 15.6 V, preventing gate oxide rupture and shoot-through failures in 600 V MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A-E3/5B | Same VWM (9.4 V), identical SMB package, but lower PPPM (400 W) and higher VC (18.2 V at 22.5 A). | Less robust for high-energy transients (e.g., ISO 16750-2 Pulse 5a); suitable only where surge currents stay below 22.5 A. | Select SMAJ11A-E3/5B if cost sensitivity outweighs peak power margin and board space allows parallel devices for derating. |
| 1.5SMC11A | Same VWM/VBR specs, but larger SMC (DO-214AB) package (2.54 mm height vs. SMB's 2.18 mm), RθJA = 60 °C/W. | Better thermal performance under sustained surge duty, but incompatible with fine-pitch layouts requiring SMB footprint. | Choose 1.5SMC11A when thermal management dominates layout constraints and PCB real estate permits larger body size. |
Compared with P6SMB11AHM3/H, SMAJ11A-E3/5B trades peak power and clamping performance for cost, while 1.5SMC11A improves thermal handling at the expense of board area - making P6SMB11AHM3/H the optimal balance of compactness, AEC-Q101 qualification, and 600 W surge capacity in SMB-constrained designs.
Availability
P6SMB11AHM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power inputs, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB11AHM3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for AEC-Q101 compliance, low-profile mounting, and consistent clamping performance across temperature and surge repetition rates.
FAQ
What is the clamping voltage of the P6SMB11AHM3/H under maximum surge conditions?
The P6SMB11AHM3/H has a maximum clamping voltage (VC) of 15.6 V at 38.5 A peak pulse current (IPPM) using the standardized 10/1000 μs waveform. This value is measured per Vishay's test conditions in Doc. #88370 and represents the highest voltage the protected circuit will experience during a worst-case transient. The P6SMB11AHM3/H maintains this clamping performance across its specified operating temperature range, supporting robust design margins for downstream ICs rated to 16 V absolute maximum.
Is the P6SMB11AHM3/H qualified for automotive applications?
Yes, the P6SMB11AHM3/H is AEC-Q101 qualified - confirmed by its HM3 suffix, which denotes halogen-free, RoHS-compliant construction meeting the full stress-test requirements for automotive discrete semiconductors. Vishay explicitly lists AEC-Q101 qualification for P6SMB11AHM3/H in the Ordering Information table (page 3, Doc. #88370), covering HTOL, temperature cycling, and HAST testing. This makes the P6SMB11AHM3/H suitable for under-hood and chassis-mounted modules where reliability under thermal and mechanical stress is mandatory.
How does the P6SMB11AHM3/H differ from bidirectional variants like P6SMB11CA?
The P6SMB11AHM3/H is unidirectional, meaning it conducts only in reverse bias (cathode to anode) and blocks forward current - ideal for DC power rail protection. In contrast, P6SMB11CA is bidirectional, offering symmetrical clamping in both polarities for AC signal line or differential bus protection. The P6SMB11AHM3/H has a marked cathode band; P6SMB11CA has no polarity marking. Electrical specs differ slightly: P6SMB11CA lists VWM = 9.4 V and VBR = 10.5–11.6 V same as P6SMB11AHM3/H, but its clamping is defined for both directions and leakage is specified at ±9.4 V.
What is the thermal resistance of the P6SMB11AHM3/H, and how does it affect layout?
The P6SMB11AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - as defined in Vishay's mechanical drawings (page 5, Doc. #88370). This value assumes no additional copper pour or thermal vias. To maintain TJ ≤ 150 °C during repetitive surges, PCB layout must allocate adequate copper area and consider thermal relief; doubling pad size reduces RθJA by ~15–20 %. The P6SMB11AHM3/H's RθJA directly impacts maximum allowable average power dissipation in high-duty-cycle applications.
Can the P6SMB11AHM3/H replace older P6SMB11A variants without design changes?
Yes, the P6SMB11AHM3/H is a direct replacement for legacy P6SMB11A parts in terms of electrical specifications, SMB (DO-214AA) package dimensions, and pinout - with added benefits: halogen-free material, RoHS compliance, and AEC-Q101 qualification. The "HM3" suffix indicates upgraded environmental and reliability attributes, while all key parameters (VWM, VBR, VC, PPPM) match the base P6SMB11A. No PCB layout or schematic changes are required when upgrading to P6SMB11AHM3/H, and it maintains full compatibility with existing reflow profiles due to MSL Level 1 rating.
P6SMB11AHM3/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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38.5A
- 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)
P6SMB11AHM3/H FAQ
1.How can I place an order for P6SMB11AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11AHM3/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 P6SMB11AHM3/H reliable?
The price and inventory of P6SMB11AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11AHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB11AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11AHM3/H?
P6SMB11AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11AHM3/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 P6SMB11AHM3/H?
For technical support, including P6SMB11AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11AHM3/H requirements.
6.How does Aetrix verify that P6SMB11AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB11AHM3/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 P6SMB11AHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB11AHM3/H?
All P6SMB11AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11AHM3/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 P6SMB11AHM3/H part is unused and in its original packaging.
Return procedure for P6SMB11AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11AHM3/H Tags
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