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Vishay General Semiconductor - Diodes Division P6SMB22AHM3/H
- Part No.:
- P6SMB22AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22AHM3/H.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,218
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Product details
Overview
P6SMB22AHM3/H 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 22 V breakdown voltage (VBR = 20.9–23.1 V at IT = 1.0 mA), 18.8 V stand-off voltage (VWM), 30.6 V maximum clamping voltage (VC) at 19.6 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 industrial power supplies.
For engineers reviewing the P6SMB22AHM3/H datasheet, P6SMB22AHM3/H pinout, P6SMB22AHM3/H application, or P6SMB22AHM3/H equivalent, this part delivers AEC-Q101 qualified transient suppression in halogen-free, RoHS-compliant packaging with MSL Level 1 moisture sensitivity and 260 °C lead-free reflow compatibility - critical for automotive-grade board-level ESD and surge protection design validation.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping device triggered by reverse-biased avalanche breakdown. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of inductive switching spikes and lightning-induced surges on DC rails and low-speed signal paths.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads, it supports repetitive 0.01% duty cycle pulses and derates linearly above TA = 25 °C per Fig. 2. Thermal resistance is RθJA = 100 °C/W (junction-to-ambient) and RθJL = 20 °C/W (junction-to-lead), enabling reliable operation up to TJ = +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V at 1.0 mA test current - defines precise avalanche onset threshold for repeatable clamping behavior |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA; sets safe DC bias margin |
| VC @ IPPM | 30.6 V at 19.6 A - clamped voltage during 600 W 10/1000 μs transient; determines protected circuit's worst-case overvoltage |
| PPPM | 600 W - peak pulse power handling capability under standardized surge waveform; validates robustness against IEC 61000-4-5 Level 4 events |
| IFSM | 100 A - non-repetitive forward surge current rating (8.3 ms half-sine); supports inrush and fault-current tolerance in power stage inputs |
| TJ max. | +150 °C - maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 0.220" × 0.205" footprint and matte tin-plated leads compliant with J-STD-002 |
Pinout & Package
Package: SMB (DO-214AA), molded epoxy case meeting UL 94 V-0 flammability rating; cathode indicated by band on body; terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-biased during clamping) | Connected to lower-potential side of protected line; forms avalanche path when reverse voltage exceeds VBR |
| Cathode | Reverse-biased clamping terminal | Marked with band; connected to higher-potential rail (e.g., VIN or signal line); sinks surge current to ground or return path |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validates compliance with IEC 61000-4-5 surge immunity requirements for industrial and automotive power inputs |
| AEC-Q101 qualified (HM3 suffix) | Confirms reliability for automotive electronics including engine control modules and body electronics under temperature cycling and humidity testing |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free assembly without pre-baking; eliminates moisture-related popcorning risk |
| Glass passivated chip junction | Provides stable VBR tolerance and low leakage (<1.0 μA at VWM) across -65 °C to +150 °C operating range |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (up to 35 V, 100 ms) and ISO 7637-2 pulse 5a/b on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between VBAT and ground, conducting only during overvoltage events. Use Value: Limits voltage seen by downstream LDOs and microcontrollers to ≤30.6 V, preventing latch-up or permanent damage. |
Use Scenario: Shields analog front-end inputs of temperature/pressure sensors in PLC I/O modules from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 100 pF at 0 V) placed inline with signal traces prior to op-amp input stage. Use Value: Clamps ±8 kV contact ESD (IEC 61000-4-2) to <35 V within <1 ns, preserving signal integrity and ADC accuracy. |
| DC-DC Converter Input Protection | Telecom Line Card Surge Protection |
Use Scenario: Guards 24 V input stage of isolated flyback converters in factory automation drives against inductive kickback from relay coils. IC Role / Device Role / Timing Role: Primary transient suppressor mounted directly at connector entry point, shunting surge energy to chassis ground. Use Value: Withstands 100 A IFSM, ensuring survival of repeated 100 V/500 ms surges while maintaining VWM = 18.8 V for normal operation. |
Use Scenario: Protects Ethernet PHY interface and PoE controller inputs on telecom base station line cards exposed to lightning-induced surges on long copper runs. IC Role / Device Role / Timing Role: First-stage clamping device in multi-stage protection scheme, absorbing bulk energy before GDT or MOV secondary stages. Use Value: Delivers 600 W pulse handling with low VC/VBR ratio (1.47), minimizing let-through stress on downstream silicon. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-E3/5B | Same VBR range (20.9–23.1 V), but SMA package (smaller footprint, higher RθJA = 140 °C/W), 400 W PPPM | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 due to reduced power rating | Select when board space is constrained and surge threat level is Class 2 or lower |
| 1.5SMC22AHE3/A | Same electrical specs, but SMC (DO-214AB) package - larger footprint, lower RθJA = 70 °C/W, 1500 W PPPM | Overqualified for most 600 W use cases; requires more PCB area and higher assembly cost | Choose when thermal margin is critical or system-level testing demands >1000 W headroom |
Compared with SMAJ22A-E3/5B, P6SMB22AHM3/H offers 50% higher surge power handling and better thermal performance in the same production-ready SMB format; versus 1.5SMC22AHE3/A, it provides optimal balance of robustness, size, and cost for AEC-Q101-compliant 12–24 V systems.
Availability
P6SMB22AHM3/H is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for P6SMB22AHM3/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 targets board-level transient protection in automotive, industrial, and telecom systems - engineered for high-power surge absorption, low clamping voltage, and seamless SMT integration in harsh environments.
FAQ
What is the breakdown voltage tolerance of P6SMB22AHM3/H?
The P6SMB22AHM3/H has a specified breakdown voltage range of 20.9 V to 23.1 V at 1.0 mA test current, corresponding to ±5% tolerance around the nominal 22 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports precise overvoltage margining in safety-critical designs where P6SMB22AHM3/H is deployed.
Is P6SMB22AHM3/H suitable for bidirectional transient protection?
No, P6SMB22AHM3/H is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the P6SMB22CA variant. Using P6SMB22AHM3/H in AC or dual-polarity signal paths would result in forward conduction during negative half-cycles, potentially damaging the device or circuit - always verify polarity alignment before placing P6SMB22AHM3/H in layout.
Does P6SMB22AHM3/H meet automotive qualification standards?
Yes, the "HM3" suffix confirms P6SMB22AHM3/H is halogen-free, RoHS-compliant, and AEC-Q101 qualified - validated for temperature cycling, mechanical shock, humidity, and high-temperature reverse bias life testing per automotive electronics reliability requirements. This makes P6SMB22AHM3/H appropriate for under-hood and chassis-mounted modules where P6SMB22AHM3/H must operate continuously at +125 °C ambient.
What is the maximum clamping voltage of P6SMB22AHM3/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB22AHM3/H is 30.6 V at 19.6 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream ICs - such as those powered by 3.3 V or 5 V rails - remain within absolute maximum ratings when P6SMB22AHM3/H activates.
How does the SMB package of P6SMB22AHM3/H compare to SMA or SMC alternatives?
The SMB (DO-214AA) package of P6SMB22AHM3/H strikes a balance between footprint size (0.220" × 0.205") and thermal performance (RθJA = 100 °C/W), offering 50% higher surge power than SMA-based equivalents like SMAJ22A and 40% smaller area than SMC devices like 1.5SMC22A. This makes P6SMB22AHM3/H ideal for space-constrained yet thermally demanding applications where optimizing both PCB real estate and reliability is essential.
P6SMB22AHM3/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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 19.6A
- 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)
P6SMB22AHM3/H FAQ
1.How can I place an order for P6SMB22AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22AHM3/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 P6SMB22AHM3/H reliable?
The price and inventory of P6SMB22AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22AHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB22AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22AHM3/H?
P6SMB22AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22AHM3/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 P6SMB22AHM3/H?
For technical support, including P6SMB22AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22AHM3/H requirements.
6.How does Aetrix verify that P6SMB22AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB22AHM3/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 P6SMB22AHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB22AHM3/H?
All P6SMB22AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22AHM3/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 P6SMB22AHM3/H part is unused and in its original packaging.
Return procedure for P6SMB22AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22AHM3/H Tags
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