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Vishay General Semiconductor - Diodes Division P6SMB15CA-E3/52
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- Part No.:
- P6SMB15CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15CA-E3/52.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,556
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Product details
Overview
P6SMB15CA-E3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, 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 (10/1000 μs), and 600 W peak pulse power capability - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB15CA-E3/52 datasheet, P6SMB15CA-E3/52 pinout, P6SMB15CA-E3/52 application, or P6SMB15CA-E3/52 equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (VC/VWM = 1.41), AEC-Q101 qualification eligibility (via HE3 suffix variants), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
The P6SMB15CA-E3/52 operates as a bidirectional avalanche diode, symmetrically clamping both positive and negative transients without polarity dependence. Its glass-passivated junction enables fast response (<1 ns) and stable breakdown behavior under repetitive 10/1000 μs surges at 0.01% duty cycle.
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), with maximum junction temperature rated at +150 °C. It meets J-STD-020 MSL Level 1 and supports lead-free reflow up to 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12.8 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 14.3–15.8 V at 1 mA - Verified avalanche onset range; ensures predictable turn-on during transient events. |
| VC (Clamping) | 21.2 V at 28.3 A (10/1000 μs) - Peak voltage seen by protected circuit; critical for IC-level ESD/surge immunity design. |
| PPPM | 600 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted per recommended pad layout. |
| IPPM | 28.3 A - Peak surge current handling capacity; determines minimum trace width and PCB copper area requirements. |
| TJ max. | +150 °C - Enables operation in under-hood automotive or industrial ambient environments without derating. |
| Package | SMB (DO-214AA) - Low-profile SMT footprint (4.57 mm × 3.94 mm × 2.20 mm); compatible with standard 7" tape-and-reel (E3/52). |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking. Cathode/anode terminals are symmetrical; both ends function identically for transient suppression in AC-coupled or differential signal paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals conduct equally during positive or negative overvoltage events; no orientation required during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without polarity concerns. |
| 600 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 and IEC 61000-4-5 Level 3 surge immunity requirements for automotive and industrial equipment. |
| Low clamping ratio (VC/VWM = 1.66) | Minimizes stress on downstream ICs - e.g., protects 16 V-rated microcontrollers or CAN transceivers during load dump. |
| MSL Level 1, 260 °C reflow compatible | Supports high-volume manufacturing without moisture sensitivity limitations or baking requirements. |
| AEC-Q101 qualification path | HE3/HM3 variants available - enables use in automotive powertrain, body control, and ADAS sensor modules. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting wheel speed or pressure sensors exposed to inductive switching noise and battery load dump pulses in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor supply/return lines to clamp transients before they reach ASIC or analog front-end. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V sensor ICs during ISO 7637-2 Pulse 5a (load dump up to 60 V, 400 ms). |
Use Scenario: Shielding RS-485 transceivers in factory automation PLCs from ground loop surges and EFT bursts. IC Role / Device Role / Timing Role: Differential-line TVS connected between A/B bus lines and ground to suppress common-mode transients without distorting signal integrity. Use Value: Maintains >250 kbps data rate while limiting bus voltage excursion to ≤21.2 V - within transceiver absolute maximum ratings. |
| Telecom Line Surge Suppression | Consumer Power Adapter Input |
Use Scenario: Safeguarding DSL or PoE-powered Ethernet PHYs against lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Primary-stage TVS on line-side inputs, coordinated with GDT or MOV secondary protection. Use Value: Clamps induced surges to <22 V within <1 ns, preventing damage to 24 V tolerant PHYs and enabling IEC 61000-4-5 4 kV compliance. |
Use Scenario: Input-stage transient protection in wall-mounted USB-C PD adapters subject to mains-borne surges. IC Role / Device Role / Timing Role: Secondary TVS after fuse and X-cap, clamping rectified DC bus spikes before primary controller IC. Use Value: Absorbs 600 W energy from 10/1000 μs surges without degradation - extends adapter lifetime in regions with unstable grid conditions. |
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/VC, but lower PPPM = 400 W; SMA package (smaller, higher RθJA = 140 °C/W). | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 Pulse 5a. | Select when board space is constrained and surge energy is ≤400 W - verify thermal margin with actual pad layout. |
| 1.5KE15CA | Higher PPPM = 1500 W, axial DO-201 package; slower response due to higher junction capacitance (~100 pF vs. ~50 pF). | Not SMT-compatible; requires through-hole assembly and larger board area; less suitable for high-speed signal lines. | Choose for legacy designs or high-energy, low-frequency surges where SMT is not mandatory and layout space allows. |
Compared with SMAJ15CA and 1.5KE15CA, the P6SMB15CA-E3/52 delivers optimal balance of 600 W surge capacity, SMB SMT compatibility, and sub-1 ns response - making it preferred for new automotive and industrial designs requiring AEC-Q101 readiness and automated assembly.
Availability
P6SMB15CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 networks, and telecom line interface circuits requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6SMB15CA-E3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P6SMB Series targets robust, high-power transient suppression in space-constrained SMT applications - engineered for automotive, industrial, and telecom systems demanding AEC-Q101 readiness and repeatable clamping performance.
FAQ
What is the clamping voltage of the P6SMB15CA-E3/52 at its rated peak pulse current?
The P6SMB15CA-E3/52 has a maximum clamping voltage (VC) of 21.2 V at 28.3 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions per JEDEC standards and reflects the highest voltage the protected circuit will experience during a full-rated surge event. The P6SMB15CA-E3/52 maintains this clamping performance across its specified operating temperature range.
Is the P6SMB15CA-E3/52 suitable for automotive applications?
Yes - the base P6SMB15CA-E3/52 is RoHS-compliant and qualified to J-STD-020 MSL Level 1, but full AEC-Q101 qualification requires the HE3 or HM3 suffix variant (e.g., P6SMB15CAHE3_B). The P6SMB15CA-E3/52 shares identical electrical and thermal characteristics with those qualified versions, making it suitable for non-safety-critical automotive subsystems like infotainment or body electronics when validated per customer requirements.
How does the bidirectional configuration of the P6SMB15CA-E3/52 affect its PCB layout?
The P6SMB15CA-E3/52 has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB layout for differential or AC-coupled lines - such as RS-485 A/B pairs or transformer-coupled Ethernet - and avoids errors in high-volume SMT assembly. The P6SMB15CA-E3/52 should still be mounted on 0.2" × 0.2" copper pads per Vishay's recommended layout to achieve rated 600 W pulse power.
What is the maximum junction temperature rating for the P6SMB15CA-E3/52?
The P6SMB15CA-E3/52 has a maximum junction temperature (TJ) rating of +150 °C, allowing reliable operation in under-hood automotive environments or enclosed industrial enclosures. Derating curves in the datasheet show that at 100 °C ambient, the device retains >60% of its 600 W peak pulse power capability when mounted per spec. This TJ max. applies directly to the P6SMB15CA-E3/52 and is verified per JEDEC JESD22-A102.
Does the P6SMB15CA-E3/52 require external heat sinking for continuous power dissipation?
No - the P6SMB15CA-E3/52 is rated for 5.0 W steady-state power dissipation (PD) on an infinite heatsink at TA = 50 °C, but typical applications involve short-duration transients, not continuous DC power. Its RθJA = 100 °C/W means no external heatsink is needed; thermal management relies on PCB copper area. The P6SMB15CA-E3/52 achieves full 600 W pulse rating using only the specified 0.2" × 0.2" pad layout, not additional heatsinking.
P6SMB15CA-E3/52 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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB15CA-E3/52 FAQ
1.How can I place an order for P6SMB15CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15CA-E3/52 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 P6SMB15CA-E3/52 reliable?
The price and inventory of P6SMB15CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15CA-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB15CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15CA-E3/52?
P6SMB15CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15CA-E3/52 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 P6SMB15CA-E3/52?
For technical support, including P6SMB15CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15CA-E3/52 requirements.
6.How does Aetrix verify that P6SMB15CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB15CA-E3/52 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 P6SMB15CA-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB15CA-E3/52?
All P6SMB15CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15CA-E3/52, 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 P6SMB15CA-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB15CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15CA-E3/52 Tags
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