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Vishay General Semiconductor - Diodes Division P6SMB22CAHE3/52
- Part No.:
- P6SMB22CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22CAHE3/52.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB22CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 22 V standoff voltage (VWM), 24.4–26.9 V breakdown voltage (VBR at 1 mA), 30.6 V maximum clamping voltage (VC) at 19.6 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6SMB22CAHE3/52 datasheet, P6SMB22CAHE3/52 pinout, P6SMB22CAHE3/52 application, or P6SMB22CAHE3/52 equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, 30.6 V clamping under 19.6 A surge, RoHS-compliant matte tin terminals, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both directions, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable leakage (<1.0 μA at 18.8 V) and fast response time (<1.0 ps), while low incremental surge resistance supports effective energy diversion during ESD or inductive switching events.
The P6SMB22CAHE3/52 is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its thermal resistance (RθJA = 100 °C/W) and 5.0 W steady-state power dissipation define its derating envelope above 25 °C ambient, requiring layout-aware thermal management for repetitive surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 18.8 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 24.4–26.9 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 30.6 V at 19.6 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs transient; critical for downstream IC survival. |
| PPPM (Peak Pulse Power) | 600 W - Energy-handling capacity for single 10/1000 μs surges; enables protection against IEC 61000-4-5 Level 3/4 threats. |
| ID (Reverse Leakage) | <1.0 μA at 18.8 V - Minimal standby current; avoids loading sensitive analog or low-power signal paths. |
| TJ max. | 150 °C - Maximum junction temperature limit; constrains PCB copper area and airflow requirements in sealed enclosures. |
| 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, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts during negative surges; forms symmetrical path with cathode for bidirectional clamping. |
| Cathode | Transient current entry (positive half-cycle) | Conducts during positive surges; paired with anode to enable full-wave transient suppression without external polarity routing. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints or external diode pairing. |
| 600 W peak pulse power (10/1000 μs) | Supports robust immunity to lightning-induced surges and inductive kickback in motor drives and power supply inputs. |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive body electronics, infotainment interfaces, and ADAS sensor signal conditioning. |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without baking; compatible with high-volume automated assembly at 260 °C peak. |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage current across temperature and lifetime stress conditions. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching MCU or signal conditioner. Use Value: Limits voltage to ≤30.6 V during 19.6 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V automotive microcontrollers. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring ESD. IC Role / Device Role / Timing Role: Primary transient suppressor mounted adjacent to terminal block to absorb inductive energy before it reaches optocoupler or Schmitt trigger input stage. Use Value: Clamps 24 V line spikes to safe levels within nanoseconds, eliminating false triggering and extending optocoupler lifetime. |
| Consumer Appliance Motor Drive Protection | Telecom Line Card Surge Suppression |
Use Scenario: Shielding H-bridge gate drivers and current-sense amplifiers in smart home HVAC and washing machine inverters from motor commutation noise. IC Role / Device Role / Timing Role: Localized TVS across half-bridge supply rails and sense lines to suppress dV/dt-induced coupling and ground bounce. Use Value: Maintains <1.0 μA leakage at 18.8 V, avoiding DC offset errors in precision current measurement while clamping fast transients. |
Use Scenario: Front-end protection of Ethernet PHYs and PoE injectors against lightning-induced surges on twisted-pair data lines per IEC 61000-4-5. IC Role / Device Role / Timing Role: First-stage clamping device on RJ45 interface board, coordinated with GDT and common-mode chokes. Use Value: Delivers 600 W pulse handling with 30.6 V clamping, reducing secondary protector stress and preserving signal integrity up to 100 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22CA | Same 22 V VWM and bidirectional SMB package, but lower 400 W PPPM rating and non-AEC-Q101 qualified. | Limited to commercial-grade consumer or industrial equipment without automotive qualification requirements. | Select SMAJ22CA only when AEC-Q101 compliance is not required and surge threat level is ≤400 W. |
| SMCJ22CA | Higher 1500 W PPPM rating in larger SMC (DO-214AB) package; same VWM/VBR/VC specs and AEC-Q101 option available (SMCJ22CAHE3). | Suitable for higher-energy threats (e.g., 10/1000 μs Level 4), but requires larger PCB footprint and different pad layout. | Choose SMCJ22CAHE3 when system-level surge testing exceeds 600 W or when design margin demands higher pulse energy headroom. |
Compared with SMAJ22CA and SMCJ22CAHE3, the P6SMB22CAHE3/52 delivers optimal balance of AEC-Q101 qualification, 600 W surge capability, and compact SMB footprint - making it ideal for space-constrained automotive and industrial modules where qualification and size are jointly critical.
Availability
P6SMB22CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, consumer appliance motor drives, and telecom line card surge protection requiring stable component supply and AEC-Q101 traceability.
Supply support for P6SMB22CAHE3/52 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 performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications systems, engineered for robust clamping, automated assembly compatibility, and extended temperature operation.
FAQ
What is the clamping voltage of the P6SMB22CAHE3/52 under maximum rated surge current?
The P6SMB22CAHE3/52 has a maximum clamping voltage (VC) of 30.6 V at 19.6 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuits during transient events. The P6SMB22CAHE3/52 maintains this clamping performance across its specified operating temperature range when mounted on 5.0 mm × 5.0 mm copper pads.
Is the P6SMB22CAHE3/52 suitable for automotive applications?
Yes, the P6SMB22CAHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix, and is explicitly intended for automotive use. It has passed stress tests including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev H. The P6SMB22CAHE3/52 is commonly deployed in automotive body control modules, sensor signal conditioning, and infotainment interface protection where reliability under harsh environmental conditions is mandatory.
How does the bidirectional configuration of the P6SMB22CAHE3/52 affect PCB layout?
The P6SMB22CAHE3/52 has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB layout by removing the need for silkscreen polarity indicators or automated vision alignment checks. The P6SMB22CAHE3/52 can be placed across any differential or floating node - such as RS-485 lines or transformer-coupled signals - without regard to anode/cathode assignment, reducing assembly errors and design iteration cycles.
What is the maximum steady-state power dissipation for the P6SMB22CAHE3/52?
The P6SMB22CAHE3/52 has a maximum steady-state power dissipation (PD) of 5.0 W at TA = 50 °C on an infinite heatsink. Derating begins above 25 °C ambient, following the curve in Figure 2 of the datasheet, with RθJA = 100 °C/W. At 85 °C ambient, usable PD drops to approximately 2.0 W. The P6SMB22CAHE3/52 is not intended for continuous power dissipation but rather for transient energy absorption; sustained DC leakage must remain below 1.0 μA at 18.8 V.
Does the P6SMB22CAHE3/52 require special handling during reflow soldering?
No special handling is required: the P6SMB22CAHE3/52 meets MSL Level 1 per J-STD-020 and supports standard lead-free reflow profiles with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 for solderability. The P6SMB22CAHE3/52 may be processed in standard SMT lines without pre-baking or humidity-controlled storage, provided packaging remains sealed until use.
P6SMB22CAHE3/52 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:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB22CAHE3/52 FAQ
1.How can I place an order for P6SMB22CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22CAHE3/52 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 P6SMB22CAHE3/52 reliable?
The price and inventory of P6SMB22CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB22CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22CAHE3/52?
P6SMB22CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22CAHE3/52 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 P6SMB22CAHE3/52?
For technical support, including P6SMB22CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB22CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB22CAHE3/52 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 P6SMB22CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB22CAHE3/52?
All P6SMB22CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22CAHE3/52, 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 P6SMB22CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB22CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22CAHE3/52 Tags
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