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Vishay General Semiconductor - Diodes Division P6SMB22AHE3_A/I
- Part No.:
- P6SMB22AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22AHE3_A/I.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,301
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Product details
Overview
P6SMB22AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 22 V breakdown voltage (VBR = 20.9–23.1 V at 1 mA), 18.8 V stand-off voltage (VWM), clamps transients to ≤30.6 V at 19.6 A peak pulse current, and delivers 600 W peak pulse power with a 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB22AHE3_A/I datasheet, P6SMB22AHE3_A/I pinout, P6SMB22AHE3_A/I application, or P6SMB22AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, SMB (DO-214AA) package compatibility, unidirectional polarity with cathode band marking, and verified clamping performance under repetitive surge conditions per JESD22-B102 and J-STD-020 MSL level 1.
Technical Context
This TVS diode operates as a fast-acting shunt clamp, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its unidirectional configuration enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
Rated for -65 °C to +150 °C operating junction temperature, it supports high-reliability deployment in automotive ECUs and industrial controllers. Thermal resistance is specified at RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), with derating applied above 25 °C ambient per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V at 1 mA - defines precise clamping onset threshold under standardized test conditions |
| VWM | 18.8 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | ≤30.6 V at 19.6 A - peak clamped voltage during 600 W transient, limiting downstream stress |
| PPPM | 600 W (10/1000 µs waveform) - surge energy handling capacity for lightning/inductive switching events |
| IFSM | 100 A (8.3 ms half-sine) - forward surge rating confirming robustness against accidental polarity reversal |
| TJ max | +150 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| MSL Level | Level 1 (J-STD-020) - supports standard SMT reflow without moisture sensitivity concerns |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by molded band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to system ground or low-side reference in unidirectional clamp configuration |
| Cathode | Clamping output / protected line connection | Connected to the line being protected (e.g., 24 V supply rail or CAN H); conducts when VAK ≥ VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and body electronics |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV/2 Ω coupling) without degradation |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes voltage overshoot during transients, protecting 3.3 V/5 V logic and MOSFET gate drivers |
| MSL Level 1, 260 °C peak reflow | Eliminates bake-out requirement and supports single-pass assembly in high-volume manufacturing |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between sensor signal line and chassis ground, activated within <1 ns upon overvoltage detection. Use Value: Limits transient voltage to ≤30.6 V, preventing damage to downstream op-amps and ADC inputs while maintaining signal integrity during ESD events. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to inductive kickback from solenoid/relay coils. IC Role / Device Role / Timing Role: Standoff device mounted at terminal block entry point, conducting only during >18.8 V surges to divert energy away from microcontroller GPIOs. Use Value: Absorbs 600 W surge energy without latch-up, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements. |
| Telecom Power Rail Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Clamping 48 V DC power rails in PoE-powered network switches against lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Primary overvoltage suppression element placed upstream of DC-DC converters and PMICs, operating in unidirectional mode. Use Value: Maintains VWM = 18.8 V margin below nominal 24 V or 48 V rails, ensuring no leakage interference during normal operation while clamping fast transients. |
Use Scenario: Shielding BLDC motor driver ICs in smart home appliances from back-EMF spikes generated during PWM commutation. IC Role / Device Role / Timing Role: Fast-response TVS connected across motor phase terminals and ground, triggered by dV/dt exceeding VBR. Use Value: Achieves <30.6 V clamping at 19.6 A, preventing gate oxide rupture in 600 V MOSFETs and preserving FET SOA during rapid switching transitions. |
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 lower PPPM = 400 W and higher VC = 35.5 V at 11.3 A | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification or surge margin requirements |
| 1.5SMC22A | Higher package thermal resistance (RθJA ≈ 125 °C/W), larger SMC (DO-214AB) footprint, same electrical specs | Requires PCB layout revision; suitable where board space allows larger pad area | Choose when existing SMC land pattern exists and higher thermal mass is beneficial for repetitive surge duty |
Compared with SMAJ22A-E3/5B and 1.5SMC22A, the P6SMB22AHE3_A/I provides superior surge robustness (600 W vs. 400 W), tighter clamping (30.6 V vs. 35.5 V), and automotive-grade reliability - making it optimal for safety-critical 24 V systems where layout space is constrained and thermal management is limited.
Availability
P6SMB22AHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom power rail protection requiring stable component supply, AEC-Q101 traceability, and consistent SMB (DO-214AA) form factor.
Supply support for P6SMB22AHE3_A/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, efficiency, and application-specific validation.
The P6SMB Series targets high-surge industrial and automotive systems, delivering standardized 600 W transient suppression in compact SMB packages with AEC-Q101 variants for mission-critical deployments.
FAQ
What is the clamping voltage of P6SMB22AHE3_A/I at its rated peak pulse current?
The P6SMB22AHE3_A/I clamps to a maximum of 30.6 V when subjected to its rated peak pulse current of 19.6 A (10/1000 µs waveform). This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88370, page 2) and reflects worst-case voltage seen by protected circuitry during surge events.
Is P6SMB22AHE3_A/I qualified for automotive applications?
Yes, P6SMB22AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in the Vishay P6SMB Series datasheet (Revision: 09-Jan-2024). It meets stress test requirements for temperature cycling, humidity, mechanical shock, and surge robustness required for under-hood and cabin electronics.
What does the "_A/I" suffix indicate in P6SMB22AHE3_A/I?
The "_A/I" suffix in P6SMB22AHE3_A/I denotes packaging: "A" specifies the base P6SMB22A variant (unidirectional, 22 V VBR), "HE3" indicates RoHS-compliant and AEC-Q101 qualified construction, and "I" identifies 13-inch tape-and-reel delivery (3200 units per reel), per Vishay's ordering information table (page 3).
How does the SMB (DO-214AA) package of P6SMB22AHE3_A/I compare thermally to larger packages like SMC?
The SMB (DO-214AA) package of P6SMB22AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, versus ~125 °C/W for SMC packages. While smaller, its optimized pad layout (0.2" × 0.2" copper per terminal) enables effective heat dissipation - validated for 600 W pulses at ≤0.01% duty cycle without derating below 25 °C ambient.
Can P6SMB22AHE3_A/I be used in bidirectional configurations?
No, P6SMB22AHE3_A/I is strictly unidirectional, as indicated by the "A" suffix (vs. "CA" for bidirectional variants like P6SMB22CA). Its cathode band marking and forward conduction capability confirm polarity-sensitive operation; using it in reverse-biased AC paths would result in unintended conduction and failure.
P6SMB22AHE3_A/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:
- Obsolete
- 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_A/I FAQ
1.How can I place an order for P6SMB22AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22AHE3_A/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_A/I reliable?
The price and inventory of P6SMB22AHE3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB22AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22AHE3_A/I?
P6SMB22AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22AHE3_A/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_A/I?
For technical support, including P6SMB22AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB22AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB22AHE3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB22AHE3_A/I?
All P6SMB22AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22AHE3_A/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_A/I part is unused and in its original packaging.
Return procedure for P6SMB22AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22AHE3_A/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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