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Vishay General Semiconductor - Diodes Division P6SMB15CA-E3/5B
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- Part No.:
- P6SMB15CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15CA-E3/5B.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,400
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Product details
Overview
P6SMB15CA-E3/5B 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. It is used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB15CA-E3/5B datasheet, P6SMB15CA-E3/5B pinout, P6SMB15CA-E3/5B application, or P6SMB15CA-E3/5B equivalent, key selection criteria include bidirectional clamping behavior, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, and thermal resistance of 100 °C/W junction-to-ambient under standard mounting conditions.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at VWM), while the low incremental surge resistance supports effective energy diversion during fast transients.
The device is rated for repetitive 10/1000 μs pulses at 0.01 % duty cycle and derates linearly above 25 °C ambient per Figure 2. With a maximum operating junction temperature of +150 °C and MSL Level 1 moisture sensitivity, it 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 significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 14.3–15.8 V at 1.0 mA - Voltage at which device enters avalanche; tight tolerance ensures predictable turn-on across production lots. |
| VC (Clamping) | 21.2 V at 28.3 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs transient; critical for ensuring downstream component survival. |
| PPPM | 600 W - Peak pulse power handling capacity; determines survivability against lightning-induced surges or inductive switching spikes. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient air on standard 0.2" × 0.2" copper pads; informs layout cooling requirements. |
| TJ max. | +150 °C - Maximum allowable junction temperature; sets upper limit for thermal design margin in high-ambient environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm length and 2.20 mm height; compatible with automated pick-and-place and reflow processes. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; no polarity marking for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | One terminal of symmetrical PN junction; conducts during positive or negative overvoltage events relative to cathode. |
| Cathode | Transient current exit (bidirectional) | Second terminal of symmetrical PN junction; completes low-impedance path to ground or rail during clamping action. |
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 constraints. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth) when properly laid out, supporting robust industrial EMC compliance. |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes voltage overshoot during transients, reducing stress on downstream logic-level components like microcontrollers or transceivers. |
| AEC-Q101 qualified option | Available as P6SMB15CAHE3_B variant; validated for automotive under-hood and infotainment applications requiring reliability beyond commercial grade. |
| MSL Level 1 rating | Permits unlimited floor life and standard reflow profile use without baking, simplifying manufacturing logistics for high-volume SMT lines. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protection of gate drivers and feedback signal lines in variable-frequency drives subjected to inductive kickback from 3-phase motors. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed across motor phase outputs and isolated analog sensor inputs. Use Value: Limits transient voltage to ≤21.2 V during 600 W surges, preventing latch-up or permanent damage to 3.3 V/5 V interface ICs and optocouplers. |
Use Scenario: ESD and load-dump suppression on LIN bus and analog output lines of pressure/temperature sensors in engine control modules. IC Role / Device Role / Timing Role: Primary transient suppressor located at connector entry point, shunting energy before reaching ASIC or MCU input pins. Use Value: Maintains signal integrity during ISO 16750-2 load-dump tests (up to 35 V for 400 ms) and IEC 61000-4-2 ESD events (±8 kV contact). |
| Telecom Power Feeds | Consumer USB-C Port Protection |
|
Use Scenario: Overvoltage protection on -48 V DC telecom power distribution boards exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary clamping device downstream of primary MOVs, providing precise low-voltage clamping for sensitive DC-DC converters. Use Value: Clamps transients to 21.2 V within nanoseconds, protecting 24 V-rated buck controllers and PMICs from destructive overvoltage. |
Use Scenario: Bidirectional surge suppression on USB-C CC and VBUS lines in portable chargers and docking stations. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between connector and port controller to absorb hot-plug transients and ESD. Use Value: Withstands ±15 kV air discharge per IEC 61000-4-2 while maintaining <1.0 μA leakage at 12.8 V, preserving battery drain budgets. |
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); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients; less suitable for industrial motor drive or telecom surge scenarios requiring full 600 W rating. | Select when board space is constrained and surge threat level is limited to IEC 61000-4-5 Level 2. |
| 1.5SMC15CA | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 60 °C/W; higher thermal mass supports repeated surges. | Better sustained power handling in high-duty-cycle environments; requires more PCB area and may not fit dense layouts. | Prefer for applications with frequent transient exposure (e.g., factory automation PLC I/O modules) where thermal recovery matters. |
Compared with SMAJ15CA and 1.5SMC15CA, P6SMB15CA-E3/5B delivers optimal balance of 600 W surge capability, SMB footprint efficiency, and manufacturability-making it ideal for cost-sensitive, high-volume industrial and automotive designs needing verified AEC-Q101 variants.
Availability
P6SMB15CA-E3/5B is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom power feeds, and consumer USB-C port protection requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6SMB15CA-E3/5B 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, rectifiers, and protection devices with emphasis on reliability, precision, and application-specific validation.
The P6SMB Series was developed for high-reliability transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems demanding consistent clamping performance and AEC-Q101 qualification.
FAQ
What is the clamping voltage of P6SMB15CA-E3/5B at its rated peak pulse current?
The P6SMB15CA-E3/5B has a maximum clamping voltage (VC) of 21.2 V at 28.3 A peak pulse current (IPPM), measured using a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuits during transient events. The P6SMB15CA-E3/5B maintains this clamping performance with low incremental surge resistance, ensuring minimal overshoot in real-world surge conditions.
Is P6SMB15CA-E3/5B suitable for automotive applications?
P6SMB15CA-E3/5B itself is the commercial-grade RoHS-compliant variant; however, the AEC-Q101 qualified version is designated P6SMB15CAHE3_B. That variant undergoes extended stress testing including temperature cycling, HTRB, and ESD per AEC-Q101 Rev D. For automotive use, specify P6SMB15CAHE3_B-not P6SMB15CA-E3/5B-to ensure qualification compliance. The P6SMB15CA-E3/5B remains appropriate for non-automotive industrial and consumer applications.
What does the "CA" suffix indicate in P6SMB15CA-E3/5B?
The "CA" suffix in P6SMB15CA-E3/5B denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional "A" versions, the CA variant has no cathode marking and functions identically whether voltage is applied anode-to-cathode or cathode-to-anode. This makes P6SMB15CA-E3/5B ideal for protecting AC-coupled signals, differential buses, or floating power domains where polarity cannot be assumed.
What is the thermal resistance of P6SMB15CA-E3/5B, and how does it affect layout?
P6SMB15CA-E3/5B 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 standard JEDEC test conditions and directly impacts PCB copper pour sizing: reducing pad area increases RθJA, risking thermal runaway during repetitive surges. To maintain reliability, follow Vishay's recommended mounting pad layout and avoid excessive trace narrowing near the P6SMB15CA-E3/5B terminals.
How does P6SMB15CA-E3/5B compare to unidirectional P6SMB15A-E3/5B in circuit implementation?
P6SMB15CA-E3/5B replaces two unidirectional TVS diodes (anode-to-ground and cathode-to-ground) with a single bidirectional device, simplifying layout and reducing BOM count. While P6SMB15A-E3/5B protects only one polarity and requires explicit cathode orientation, the P6SMB15CA-E3/5B eliminates polarity concerns-critical for differential lines like CAN or RS-485. Both share identical VWM (12.8 V), VBR (14.3–15.8 V), and VC (21.2 V), but only P6SMB15CA-E3/5B supports true AC transient suppression without external biasing.
P6SMB15CA-E3/5B 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:
- 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-E3/5B FAQ
1.How can I place an order for P6SMB15CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15CA-E3/5B 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 P6SMB15CA-E3/5B reliable?
The price and inventory of P6SMB15CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15CA-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB15CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15CA-E3/5B?
P6SMB15CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15CA-E3/5B 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 P6SMB15CA-E3/5B?
For technical support, including P6SMB15CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15CA-E3/5B requirements.
6.How does Aetrix verify that P6SMB15CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB15CA-E3/5B 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 P6SMB15CA-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB15CA-E3/5B?
All P6SMB15CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15CA-E3/5B, 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 P6SMB15CA-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB15CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15CA-E3/5B Tags
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