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Vishay General Semiconductor - Diodes Division P6SMB30AHM3/I
- Part No.:
- P6SMB30AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AHM3/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,804
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Product details
Overview
P6SMB30AHM3/I 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 a 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), 41.4 V maximum clamping voltage at 14.5 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 P6SMB30AHM3/I datasheet, P6SMB30AHM3/I pinout, P6SMB30AHM3/I application, or P6SMB30AHM3/I equivalent, key selection criteria include clamping voltage margin vs. protected device's absolute maximum rating, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, unidirectional polarity, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
The P6SMB30AHM3/I operates as a silicon avalanche diode that enters breakdown when reverse voltage exceeds its VBR (33.3–37.5 V), diverting surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 μA at 25.6 V) and fast response time (<1.0 ps), critical for suppressing ESD and inductive switching spikes.
Designed for repetitive transient suppression with 0.01% duty cycle, it sustains 600 W peak pulse power under standardized 10/1000 μs waveform while maintaining low incremental surge resistance. The device is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive applications - confirmed by HM3 suffix and "_B" revision code per ordering table.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 25.6 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for normal circuit operation. |
| VBR (Breakdown Voltage) | 33.3–37.5 V at 1.0 mA test current - Confirmed avalanche onset range; defines minimum overvoltage threshold for clamping activation. |
| VC (Clamping Voltage) | 41.4 V at 14.5 A IPPM - Measured peak voltage across device during 10/1000 μs surge; must remain below protected IC's absolute max rating. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy-handling capability under standardized transient waveform; determines survivability against lightning or load dump events. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Ensures minimal standby power loss and signal integrity in high-impedance circuits like sensor bias networks. |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures without derating below 125 °C ambient. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; requires minimum 0.2" × 0.2" copper pad per terminal for rated power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Cathode indicated by band; unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to lower-potential side of protected line (e.g., GND or return path) | Enables standard cathode-to-rail configuration for power rail clamping; must be routed with low-inductance trace to minimize overshoot during surge. |
| Cathode | Current exit point in forward bias; marked with band; connected to higher-potential side (e.g., VBUS or signal line) | Defines clamping direction: suppresses positive transients toward ground; incompatible with bidirectional surge protection without external circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS, and body electronics. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) without failure when mounted per recommended pad layout. |
| Low clamping ratio (VC/VBR ≈ 1.23) | Minimizes overvoltage stress on protected devices - e.g., keeps 3.3 V or 5 V logic inputs within safe margin during transient events. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow at 260 °C peak - eliminates baking requirement and supports high-throughput SMT assembly. |
| Glass-passivated junction | Ensures stable leakage current and long-term parameter consistency across 15-year automotive service life. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (up to 35 V, 100 ms) on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND, clamping excess voltage before it reaches PMIC input stage. Use Value: Prevents latch-up or gate oxide damage in buck controllers (e.g., TPS543x) during alternator regulation faults - enabled by 41.4 V VC and AEC-Q101 qualification. |
Use Scenario: Shields analog output pins of pressure/temperature sensors (e.g., NXP MPX5700) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS on 0–5 V ratiometric output line, grounded cathode configuration. Use Value: Maintains signal fidelity with <1.0 μA leakage at 25.6 V, avoids DC offset errors in 16-bit ADC front-ends - verified per JEDEC JESD22-A114E. |
| Telecom DC Power Input Protection | Consumer USB Power Delivery Clamp |
Use Scenario: Guards primary-side input of isolated DC/DC converters (e.g., RECOM RxxP2200) in PoE-powered network switches. IC Role / Device Role / Timing Role: First-line defense against induced surges from Ethernet cabling, placed upstream of input filter capacitor. Use Value: Withstands 600 W pulses without degradation, enabling compliance with IEC 61000-4-5 Ed. 3 surge immunity requirements at system level. |
Use Scenario: Clamps voltage spikes on VBUS line of USB-C receptacles during hot-plug or adapter swap in portable monitors. IC Role / Device Role / Timing Role: Unidirectional TVS between VBUS and GND, sized to avoid interfering with 5–20 V PD negotiation. Use Value: 25.6 V VWM allows full USB PD 3.0 range operation while clamping to 41.4 V - prevents damage to USB PD controller (e.g., FUSB302) during transient coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/5B | Same VWM (25.6 V), identical SMB package, but non-AEC-Q101, commercial-grade only; RθJA = 110 °C/W | Lacks automotive qualification and tighter thermal performance; suitable for industrial/commercial power supplies only | Select when AEC-Q101 is not required and cost sensitivity outweighs long-term reliability in harsh environments. |
| 1.5SMC33A | Higher VC (49.9 V), same 600 W rating, but larger SMC (DO-214AB) package; VBR min = 36.7 V | Requires PCB redesign due to 2.5 mm wider body; clamping margin less favorable for 3.3 V/5 V systems | Choose only if existing design uses SMC footprint and higher clamping voltage is acceptable for protected circuitry. |
Compared with SMAJ30A-E3/5B, P6SMB30AHM3/I delivers automotive-grade reliability and lower thermal resistance; versus 1.5SMC33A, it offers superior board-space efficiency and tighter clamping - making it optimal for space-constrained, mission-critical automotive and industrial designs.
Availability
P6SMB30AHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power inputs, and consumer USB PD systems requiring stable component supply with guaranteed AEC-Q101 compliance and halogen-free materials.
Supply support for P6SMB30AHM3/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, efficiency, and application-specific optimization.
The P6SMB Series targets robust transient suppression in automotive, industrial, and telecom infrastructure - engineered for high-energy surge handling, automated assembly compatibility, and extended temperature operation up to 150 °C junction.
FAQ
What is the clamping voltage of P6SMB30AHM3/I at its rated peak pulse current?
The P6SMB30AHM3/I has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees predictable overvoltage limiting for protected downstream components such as microcontrollers or power management ICs. The clamping performance remains stable across its full operating temperature range of -65 °C to +150 °C.
Is P6SMB30AHM3/I qualified for automotive applications?
Yes, P6SMB30AHM3/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix and "_B" revision code in its ordering designation. It meets all stress tests required for automotive use, including temperature cycling, highly accelerated life testing (HALT), and ESD robustness per ISO 10605. This qualification makes P6SMB30AHM3/I suitable for under-hood and cabin applications such as body control modules, infotainment power rails, and ADAS sensor interfaces.
What is the standoff voltage (VWM) and why does it matter for P6SMB30AHM3/I?
The standoff voltage (VWM) of P6SMB30AHM3/I is 25.6 V - the maximum continuous reverse voltage it can block without entering breakdown. This parameter ensures the device remains non-conductive during normal operation, avoiding power loss or signal distortion. For example, when protecting a 24 V industrial bus, VWM must exceed nominal voltage with margin; P6SMB30AHM3/I's 25.6 V rating provides just sufficient headroom, making it appropriate for 24 V systems but not for 36 V or higher rails.
How does the SMB (DO-214AA) package of P6SMB30AHM3/I affect PCB layout?
The SMB (DO-214AA) package of P6SMB30AHM3/I measures 4.57 mm × 3.94 mm × 2.20 mm and requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for full 600 W pulse power rating. Its low-profile design supports dense layouts and automated placement, but thermal vias under pads are recommended for sustained surge duty cycles. The cathode band must be clearly aligned per silkscreen to ensure correct unidirectional orientation during assembly.
What is the maximum reverse leakage current of P6SMB30AHM3/I at its VWM?
The maximum reverse leakage current (ID) of P6SMB30AHM3/I is 1.0 μA at its standoff voltage of 25.6 V and TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes quiescent power draw in always-on automotive modules. Leakage remains below 5.0 μA up to 125 °C ambient, ensuring stable performance across extended temperature operation without compromising battery runtime.
P6SMB30AHM3/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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
P6SMB30AHM3/I FAQ
1.How can I place an order for P6SMB30AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AHM3/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 P6SMB30AHM3/I reliable?
The price and inventory of P6SMB30AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30AHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB30AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AHM3/I?
P6SMB30AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AHM3/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 P6SMB30AHM3/I?
For technical support, including P6SMB30AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AHM3/I requirements.
6.How does Aetrix verify that P6SMB30AHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB30AHM3/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 P6SMB30AHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB30AHM3/I?
All P6SMB30AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AHM3/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 P6SMB30AHM3/I part is unused and in its original packaging.
Return procedure for P6SMB30AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30AHM3/I Tags
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