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Vishay General Semiconductor - Diodes Division P6SMB22AHE3_B/I
- Part No.:
- P6SMB22AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22AHE3_B/I.pdf
- Description:
- 600W,22V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,707
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Product details
Overview
P6SMB22AHE3_B/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 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 automotive and industrial power rails.
For engineers reviewing the P6SMB22AHE3_B/I datasheet, P6SMB22AHE3_B/I pinout, P6SMB22AHE3_B/I application, or P6SMB22AHE3_B/I equivalent, this AEC-Q101 qualified TVS offers verified transient suppression performance, RoHS-compliant matte tin-plated leads, MSL Level 1 moisture sensitivity, and validated thermal resistance (RθJA = 100 °C/W) for high-reliability embedded power protection design.
Technical Context
This unidirectional TVS operates by avalanche breakdown to clamp transient overvoltages above its VWM of 18.8 V while maintaining low leakage (<1.0 μA) below that threshold. Its fast response time and low incremental surge resistance enable effective suppression of ESD, inductive switching spikes, and lightning-induced surges on DC power inputs and low-speed signal paths.
The device is rated for 100 A non-repetitive forward surge current (IFSM) and supports continuous operation up to TJ = 150 °C. Its SMB package provides mechanical robustness and compatibility with automated SMT placement, meeting J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2 requirements.
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 range for repeatable clamping behavior |
| VWM | 18.8 V - maximum steady-state reverse voltage before significant leakage begins; sets safe operating margin below VBR |
| VC @ IPPM | 30.6 V at 19.6 A - clamped voltage during 600 W transient event; determines protected circuit's maximum stress level |
| PPPM | 600 W with 10/1000 μs waveform - quantifies single-pulse energy handling capability for surge immunity compliance |
| IPPM | 19.6 A - peak current supported at VC; critical for sizing PCB trace width and layout thermal relief |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance under standard 0.2" × 0.2" copper pad layout; informs derating above 25 °C |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads. Cathode indicated by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward surge events (IFSM = 100 A) |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 24 V rail); initiates breakdown when reverse voltage exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-earth) in properly designed layouts |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics applications requiring extended temperature and lifetime reliability |
| MSL Level 1 rating | Enables standard reflow without pre-baking; compatible with high-volume SMT assembly processes |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and humidity stress |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage exposure to downstream components during transient events |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V/24 V battery-supplied ECUs exposed to load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going surges before they reach LDOs or microcontrollers. Use Value: Limits transient voltage to ≤30.6 V, preventing damage to 36 V-rated input stages and ensuring system-level ISO 16750-2 compliance. |
Use Scenario: Analog sensor outputs (e.g., pressure, temperature) routed across noisy motor control zones in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD and coupled noise on signal lines to chassis ground. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) within nanoseconds, preserving signal integrity and avoiding ADC saturation or reset events. |
| Consumer Power Adapter Input Stage | Telecom DC Feeder Line Protection |
Use Scenario: Secondary-side 5–24 V DC outputs of wall adapters subject to user-induced surges and capacitor discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after rectifier but before bulk capacitor to absorb residual AC-line transients. Use Value: Withstands 100 A surge (8.3 ms half-sine) without degradation, extending adapter field life in unregulated environments. |
Use Scenario: -48 V DC power feeding remote radio units over long copper pairs in cellular base stations. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part protects positive rail only - used with complementary device for full-duplex line protection. Use Value: Provides 600 W pulse handling at -48 V bias, enabling compliance with GR-1089-CORE lightning surge requirements when paired appropriately. |
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), identical SMB package, but rated for 400 W PPPM (vs. 600 W) | Limited to lower-energy transients; insufficient for ISO 7637-2 Pulse 5a load dump simulation | Select P6SMB22AHE3_B/I when 600 W surge headroom is required for automotive or industrial surge standards |
| 1.5SMC22A | Higher package thermal mass (SMC/DO-214AB), same VBR, 600 W rating, but RθJA = 35 °C/W (vs. 100 °C/W) | Better power dissipation in high-ambient environments, but requires larger PCB footprint and manual placement | Choose P6SMB22AHE3_B/I for space-constrained, high-volume SMT designs where AEC-Q101 and MSL Level 1 are mandatory |
Compared with SMAJ22A-E3/5B and 1.5SMC22A, P6SMB22AHE3_B/I uniquely combines AEC-Q101 qualification, 600 W pulse rating, SMB footprint, and MSL Level 1 - making it optimal for automotive and industrial SMT power rail protection where reliability, size, and process compatibility are jointly constrained.
Availability
P6SMB22AHE3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom power feeders requiring stable component supply, AEC-Q101 validation, and consistent surge immunity performance across production batches.
Supply support for P6SMB22AHE3_B/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, rectifiers, and protection devices with emphasis on reliability, precision, and application-specific qualification.
The P6SMB Series was developed for high-energy transient suppression in automotive, industrial, and communications infrastructure - delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 and RoHS compliance built-in.
FAQ
What is the maximum clamping voltage of the P6SMB22AHE3_B/I under a 600 W transient event?
The P6SMB22AHE3_B/I has a maximum clamping voltage (VC) of 30.6 V at 19.6 A peak pulse current, measured with a 10/1000 μs waveform. This value is guaranteed per the Vishay datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case transients. Engineers must verify that downstream components tolerate this clamped voltage with appropriate safety margin. The P6SMB22AHE3_B/I achieves this performance while maintaining low leakage (<1.0 μA) below its 18.8 V stand-off voltage.
Is the P6SMB22AHE3_B/I suitable for automotive applications?
Yes, the P6SMB22AHE3_B/I is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" and "_B" suffixes, indicating RoHS-compliant construction and automotive-grade reliability testing. It meets requirements for powertrain, body control, and ADAS modules subjected to ISO 7637-2 load dump and ISO 16750-2 surge conditions. The P6SMB22AHE3_B/I's 150 °C max junction temperature and MSL Level 1 rating further support under-hood deployment in modern vehicle platforms.
How does the P6SMB22AHE3_B/I differ from bidirectional variants like P6SMB22CA?
The P6SMB22AHE3_B/I is unidirectional, with cathode marking and asymmetric conduction: it clamps only reverse-voltage transients and conducts forward surges up to 100 A. In contrast, P6SMB22CA is bidirectional, suppressing transients of either polarity without polarity dependence - useful for AC lines or differential signals. The P6SMB22AHE3_B/I's VBR (20.9–23.1 V) and VC (30.6 V) apply only in reverse; forward voltage drop is 3.5 V at 50 A, per datasheet Note (5). Select P6SMB22AHE3_B/I for DC rail protection where polarity is fixed.
What is the thermal resistance of the P6SMB22AHE3_B/I, and how does it affect layout?
The P6SMB22AHE3_B/I 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. This value assumes minimal copper area and dictates derating above 25 °C ambient: at 85 °C, its 5.0 W steady-state power dissipation drops to ~2.9 W. To maintain reliability, PCB layout must replicate the specified pad dimensions and avoid excessive trace length or isolation. The P6SMB22AHE3_B/I's thermal performance is optimized for compact, high-density SMT designs rather than heatsinked installations.
Does the P6SMB22AHE3_B/I require special handling during reflow soldering?
No special handling is required: the P6SMB22AHE3_B/I is rated MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30 °C/60 % RH and processed using standard Pb-free reflow profiles peaking at 260 °C. Its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 for solderability and whisker resistance. The P6SMB22AHE3_B/I's glass passivated junction also ensures parameter stability through multiple thermal cycles - critical for automotive and industrial rework scenarios.
P6SMB22AHE3_B/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:
- Active
- 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)
P6SMB22AHE3_B/I FAQ
1.How can I place an order for P6SMB22AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22AHE3_B/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 P6SMB22AHE3_B/I reliable?
The price and inventory of P6SMB22AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB22AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22AHE3_B/I?
P6SMB22AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22AHE3_B/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 P6SMB22AHE3_B/I?
For technical support, including P6SMB22AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB22AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB22AHE3_B/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 P6SMB22AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB22AHE3_B/I?
All P6SMB22AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22AHE3_B/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 P6SMB22AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB22AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22AHE3_B/I Tags
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