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Vishay General Semiconductor - Diodes Division P6SMB15CAHE3/52
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- Part No.:
- P6SMB15CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15CAHE3/52.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,817
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Product details
Overview
P6SMB15CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 15 V standoff voltage (VWM), 21.2 V maximum clamping voltage at 28.3 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB15CAHE3/52 datasheet, P6SMB15CAHE3/52 pinout, P6SMB15CAHE3/52 application, or P6SMB15CAHE3/52 equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification for automotive use, SMB (DO-214AA) package compatibility with automated SMT assembly, and thermal resistance (RθJA = 100 °C/W) under standard PCB pad layout.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical breakdown (VBR min/max = 14.3–15.8 V at 1 mA) and clamping behavior across reverse and forward directions. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), enabling protection of sensitive CMOS inputs and analog front-ends against ESD and inductive switching spikes.
The device is rated for repetitive 10/1000 μs surges at 0.01% duty cycle and supports peak forward surge current (IFSM) up to 100 A (unidirectional only; not applicable here due to bidirectional configuration). Junction temperature range spans −65 °C to +150 °C, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12.8 V - Maximum continuous reverse voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 14.3–15.8 V at 1 mA - Voltage at which device enters avalanche breakdown; tightly controlled for predictable clamping onset. |
| VC (Clamping) | 21.2 V at IPPM = 28.3 A - Maximum voltage seen by protected circuit during 10/1000 μs transient; critical for IC voltage tolerance compliance. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; determines survivability against lightning-induced surges or load dump events. |
| ID (Leakage) | ≤1.0 μA at VWM - Ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs derating requirements above 25 °C. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction has no polarity marking; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals serve identically as bidirectional avalanche junction endpoints; no cathode band or polarity designation required. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - suitable for engine control, ADAS sensors, and infotainment interfaces. |
| 600 W peak pulse power | Withstands high-energy transients (e.g., ISO 7637-2 Pulse 5a load dump) without degradation when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes overvoltage stress on downstream ICs - e.g., protects 3.3 V or 5 V logic rails while maintaining margin below absolute maximum ratings. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly lines using 260 °C peak profile. |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage current across temperature and lifetime, critical for field-deployed industrial equipment. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to shunt transient energy before reaching signal conditioning ICs. Use Value: Maintains signal fidelity during 10/1000 μs surges up to 600 W while meeting AEC-Q101 requirements for automotive qualification. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against induced surges from relay coil switching or nearby motor drives. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input lines, coordinated with upstream fusing and filtering to meet IEC 61000-4-5 Level 3 immunity. Use Value: Limits transient voltage to ≤21.2 V, preventing latch-up or permanent damage to microcontroller GPIOs and level translators. |
| Telecom Line Interface | Consumer USB/Display Port ESD Guard |
Use Scenario: Surge suppression on RS-485/RS-232 data lines in base station backhaul units exposed to lightning-induced ground potential differences. IC Role / Device Role / Timing Role: Fast-response bidirectional TVS placed adjacent to line driver/receiver ICs to clamp common-mode transients before signal distortion occurs. Use Value: Sub-1 ns response ensures clamping initiates before edge-sensitive transceivers experience overstress, preserving bit error rate performance. |
Use Scenario: ESD protection for USB 2.0 D+/D− and DisplayPort AUX channels in laptops and docking stations. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) bidirectional clamp minimizing signal integrity impact while passing IEC 61000-4-2 ±15 kV contact discharge. Use Value: Enables robust electrostatic discharge immunity without degrading eye diagram or jitter budget on high-speed differential pairs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15CA | Same VWM (12.8 V) and VC (21.2 V), but lower PPPM (400 W); SMB package identical; no AEC-Q101 qualification. | Limited to commercial-grade industrial or consumer applications where automotive qualification is not required. | Select SMAJ15CA only if cost sensitivity outweighs automotive reliability needs and surge energy remains ≤400 W. |
| 1.5KE15CA | Higher power (1500 W), axial-leaded DO-15 package; larger footprint and incompatible with automated SMT placement. | Used in legacy through-hole designs or high-energy surge zones (e.g., AC mains entry) where board space and assembly method permit. | Choose 1.5KE15CA only when PCB layout allows axial mounting and system-level surge demands exceed 600 W. |
Compared with SMAJ15CA and 1.5KE15CA, P6SMB15CAHE3/52 uniquely combines AEC-Q101 qualification, SMB SMT compatibility, and precise 600 W clamping performance - making it the optimal choice for new automotive and high-reliability industrial designs requiring drop-in manufacturability and validated field endurance.
Availability
P6SMB15CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 traceability, and consistent SMB package form factor.
Supply support for P6SMB15CAHE3/52 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in space-constrained, high-volume applications - engineered for automotive, industrial, and telecom systems demanding AEC-Q101 validation, low-profile SMT integration, and repeatable clamping performance.
FAQ
What does the "CA" suffix indicate in P6SMB15CAHE3/52?
The "CA" suffix denotes a bidirectional configuration: P6SMB15CAHE3/52 provides symmetrical transient suppression in both polarities, unlike unidirectional variants (e.g., P6SMB15A). This eliminates polarity concerns during PCB layout and enables protection of AC-coupled or differential signal lines without orientation constraints. The device's VBR, VWM, and VC values apply identically in either direction - confirmed in Vishay's Electrical Characteristics table for CA-suffix parts.
Is P6SMB15CAHE3/52 suitable for automotive applications?
Yes, P6SMB15CAHE3/52 is AEC-Q101 qualified (indicated by the "HE3" suffix), having passed stress tests including temperature cycling, high-temperature reverse bias, and ESD per JESD22-A114. It is explicitly designated for automotive use in sensor units, infotainment, and body electronics per Vishay's ordering information and mechanical data tables. Its −65 °C to +150 °C operating range and MSL Level 1 rating further support under-hood and cabin deployment.
What is the maximum clamping voltage of P6SMB15CAHE3/52 and under what test condition?
The maximum clamping voltage (VC) of P6SMB15CAHE3/52 is 21.2 V, measured at a peak pulse current (IPPM) of 28.3 A using the standardized 10/1000 μs double-exponential waveform. This value is specified in the Electrical Characteristics table on page 2 of Vishay document 88370 and represents the worst-case voltage imposed on the protected circuit during a surge event - critical for ensuring compatibility with 3.3 V, 5 V, or 12 V IC supply rails.
How does the SMB (DO-214AA) package of P6SMB15CAHE3/52 compare to SMA or SMC packages?
The SMB (DO-214AA) package of P6SMB15CAHE3/52 measures 3.94 mm × 2.20 mm × 1.52 mm - smaller than SMC (DO-214AB) but larger than SMA (DO-214AC), offering a balance of power handling (600 W) and board space efficiency. Unlike SMA, SMB supports higher surge current due to improved thermal dissipation via larger copper pad area (0.2" × 0.2"), and unlike SMC, it maintains compatibility with standard 8-mm tape-and-reel feeders (E3/52 variant). Pin-compatible alternatives in SMB are limited to same-series P6SMBxxCA parts.
Does P6SMB15CAHE3/52 require a heatsink for normal operation?
No, P6SMB15CAHE3/52 does not require an external heatsink under typical transient conditions. Its thermal resistance (RθJA = 100 °C/W) assumes mounting on 0.2" × 0.2" copper pads per terminal - sufficient for pulsed operation with 0.01% duty cycle. Continuous power dissipation is limited to 5.0 W at TA = 50 °C, but actual steady-state dissipation is negligible since the device conducts only during transients. PCB layout must follow Vishay's recommended pad dimensions to ensure specified thermal performance.
P6SMB15CAHE3/52 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28.3A
- 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 (SMBJ)
P6SMB15CAHE3/52 FAQ
1.How can I place an order for P6SMB15CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15CAHE3/52 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 P6SMB15CAHE3/52 reliable?
The price and inventory of P6SMB15CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB15CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15CAHE3/52?
P6SMB15CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15CAHE3/52 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 P6SMB15CAHE3/52?
For technical support, including P6SMB15CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB15CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB15CAHE3/52 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 P6SMB15CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB15CAHE3/52?
All P6SMB15CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15CAHE3/52, 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 P6SMB15CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB15CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15CAHE3/52 Tags
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