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Vishay General Semiconductor - Diodes Division P6SMB22AHE3/5B
- Part No.:
- P6SMB22AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22AHE3/5B.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,956
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Product details
Overview
P6SMB22AHE3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 22 V standoff voltage (VWM), 23.1 V maximum breakdown voltage (VBR), and 30.6 V clamping voltage (VC) at 19.6 A peak pulse current. It delivers 600 W peak pulse power (10/1000 μs waveform) for protecting MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive and industrial power supplies.
For engineers reviewing the P6SMB22AHE3/5B datasheet, P6SMB22AHE3/5B pinout, P6SMB22AHE3/5B application, or P6SMB22AHE3/5B equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive ECUs and industrial motor controllers requiring robust ESD and surge immunity without layout redesign.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 18.8 V, it avalanches to clamp transient energy at VC = 30.6 V while sustaining 19.6 A peak pulse current. Its glass-passivated junction ensures stable breakdown and fast response (<1 ns), with thermal resistance RθJA = 100 °C/W enabling operation up to TJ = 150 °C.
The device is rated for repetitive 10/1000 μs surges at 0.01% duty cycle and meets JESD201 Class 2 whisker resistance. Polarity is marked by cathode band; terminals are matte tin-plated and solderable per J-STD-002, supporting automated placement on standard PCB pads (0.2" × 0.2").
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 18.8 V - Maximum continuous reverse operating voltage before clamping begins; sets system-level overvoltage threshold. |
| VBR (Breakdown Voltage) | 20.9–23.1 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 30.6 V at IPPM = 19.6 A - Peak voltage seen by protected circuit under 600 W surge; determines safe margin for downstream ICs. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs) - Sustains standardized lightning/surge energy without failure; validated per REA definition. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; defines derating above 25 °C ambient. |
| TJ max. | 150 °C - Maximum junction temperature; enables use in under-hood automotive environments and enclosed industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suffix HE3 denotes qualification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by black band; anode is unmarked end. Complies with UL 94 V-0 flammability rating and J-STD-020 MSL Level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line (e.g., 24 V rail); conducts avalanche current during overvoltage events. |
| Anode (unbanded end) | Reference/ground return | Connected to system ground or low-impedance return path; completes shunt path for transient energy dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation in automotive power modules. |
| Low clamping ratio (VC/VWM ≈ 1.63) | Minimizes stress on downstream 3.3 V/5 V logic; preserves margin between clamped voltage and IC absolute maximum ratings. |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature; eliminates parameter drift in harsh industrial environments. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without baking; reduces manufacturing complexity and cost. |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive applications including engine control, body electronics, and ADAS sensors per stress test requirements. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting microcontroller GPIO and CAN transceiver power rails from load-dump spikes (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between 12 V supply and chassis ground to clamp transients before they reach LDOs and MCU VCC. Use Value: Clamps 30.6 V at 19.6 A, limiting stress on 36 V-rated input capacitors and preventing brownout resets during 120 V/50 ms load dump events. |
Use Scenario: Safeguarding 24 V digital input optocoupler circuits from field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Front-end protection device on isolated 24 V input channel, positioned before series current-limiting resistor and opto-LED. Use Value: Fast <1 ns response prevents latch-up in optocoupler driver ICs; 600 W rating absorbs repeated 1 kV/500 Ω surge generator pulses per IEC 61000-4-4. |
| Telecom Base Station Power Supply | Consumer Appliance Motor Drive Board |
Use Scenario: Shielding DC-DC converter primary-side MOSFETs and gate drivers from lightning-induced surges on AC/DC front-end inputs. IC Role / Device Role / Timing Role: Secondary-side TVS across bulk capacitor output to suppress reflected transients from upstream MOV failure or grid switching noise. Use Value: 30.6 V clamping protects 24 V-rated synchronous rectifier controllers; AEC-Q101 qualification supports extended field life in outdoor cabinets. |
Use Scenario: Guarding Hall-effect sensor signal lines and microcontroller ADC inputs against commutation noise from brushed DC motors. IC Role / Device Role / Timing Role: Localized TVS mounted directly at motor connector interface, shunting high-frequency edge transients before entering analog front-end. Use Value: Low 19.6 A IPPM matches typical motor flyback energy; SMB footprint allows placement within 2 mm of connector for optimal high-frequency suppression. |
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 SMB package, 22 V VWM, but lower 400 W PPPM; VC = 35.5 V at 11.3 A. | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); insufficient for IEC 61000-4-5 surge in industrial mains-connected gear. | Select when cost sensitivity outweighs surge margin and board space permits parallel devices for higher power. |
| 1.5SMC22A | Higher-power 1500 W variant in larger SMC (DO-214AB) package; VC = 33.2 V at 45.2 A; same VWM/VBR range. | Requires larger PCB area and different pad layout; suitable where 600 W is marginal (e.g., 48 V telecom systems with higher stored energy). | Choose when system-level surge testing exceeds 600 W capability and mechanical constraints allow SMC footprint. |
Compared with SMAJ22A-E3/5B, P6SMB22AHE3/5B provides +50% peak power headroom and tighter clamping (30.6 V vs. 35.5 V), enabling single-device compliance with IEC 61000-4-5 Level 4. Versus 1.5SMC22A, it trades 2.5× power for 35% smaller footprint and AEC-Q101 qualification - ideal for space-constrained automotive modules.
Availability
P6SMB22AHE3/5B is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC input modules, and telecom power supply designs requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for P6SMB22AHE3/5B 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 infrastructure, designed to replace older SMA/SMB TVS families with improved power density, tighter parametric control, and AEC-Q101 qualification built-in.
FAQ
What is the clamping voltage of P6SMB22AHE3/5B at its rated peak pulse current?
The P6SMB22AHE3/5B has a maximum clamping voltage (VC) of 30.6 V at 19.6 A peak pulse current (IPPM), measured using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across temperature and ensures protected circuits remain below critical voltage thresholds during surge events. The P6SMB22AHE3/5B maintains this clamping performance with minimal variation due to its glass-passivated junction and tight VBR tolerance.
Is P6SMB22AHE3/5B suitable for automotive applications?
Yes, P6SMB22AHE3/5B is AEC-Q101 qualified (denoted by the HE3 suffix) and specifically tested for automotive reliability including temperature cycling, high-temperature reverse bias, and ESD. It is commonly deployed in engine control units, body control modules, and ADAS sensor interfaces where sustained operation at 150 °C junction temperature and immunity to load-dump transients are required. The P6SMB22AHE3/5B meets all stress-test criteria defined in the AEC-Q101 standard.
What does the "5B" suffix mean in P6SMB22AHE3/5B?
The "5B" suffix in P6SMB22AHE3/5B indicates packaging in a 13-inch diameter plastic tape and reel, with a standard quantity of 3200 units per reel. This format supports high-volume automated SMT placement and is compatible with industry-standard pick-and-place equipment. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "5B" specifies the reel size and orientation - distinct from "52" (7-inch reel, 750 units).
How does P6SMB22AHE3/5B differ from bidirectional variants like P6SMB22CAHE3/5B?
P6SMB22AHE3/5B is unidirectional and features a cathode band for polarity-sensitive placement, whereas P6SMB22CAHE3/5B is bidirectional with no polarity marking and symmetric clamping in both directions. The unidirectional P6SMB22AHE3/5B offers lower leakage current (1.0 μA at VWM) and is preferred for DC power rail protection, while the bidirectional version suits AC-coupled signal lines or differential buses. Both share identical PPPM, VC, and package.
What is the thermal resistance of P6SMB22AHE3/5B, and how does it affect layout?
The P6SMB22AHE3/5B 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 minimum recommended pad layout per Vishay's datasheet; reducing pad area increases RθJA and risks exceeding TJ = 150 °C under repeated surges. For high-duty-cycle applications, designers should verify thermal performance using the derating curve in Figure 2 of the P6SMB22AHE3/5B datasheet.
P6SMB22AHE3/5B 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)
P6SMB22AHE3/5B FAQ
1.How can I place an order for P6SMB22AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22AHE3/5B 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 P6SMB22AHE3/5B reliable?
The price and inventory of P6SMB22AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB22AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22AHE3/5B?
P6SMB22AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22AHE3/5B 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 P6SMB22AHE3/5B?
For technical support, including P6SMB22AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22AHE3/5B requirements.
6.How does Aetrix verify that P6SMB22AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB22AHE3/5B 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 P6SMB22AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB22AHE3/5B?
All P6SMB22AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22AHE3/5B, 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 P6SMB22AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB22AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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