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Vishay General Semiconductor - Diodes Division P6SMB15CAHM3_A/I
- Part No.:
- P6SMB15CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15CAHM3_A/I.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,139
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Product details
Overview
P6SMB15CAHM3_A/I 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 15 V standoff voltage (VWM), 21.2 V maximum clamping voltage at 28.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P6SMB15CAHM3_A/I datasheet, P6SMB15CAHM3_A/I pinout, P6SMB15CAHM3_A/I application, or P6SMB15CAHM3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification for automotive use, low incremental surge resistance, and compatibility with automated SMT assembly on standard PCB pads.
Technical Context
This bidirectional TVS diode operates symmetrically across both polarities, delivering identical clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the SMB package supports high thermal dissipation under repetitive surge conditions.
The device is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C peak reflow profile. It is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive-grade reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 12.8 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (Breakdown Voltage) | 14.3–15.8 V at 1 mA test current - Ensures reliable turn-on within tight tolerance band |
| VC (Clamping Voltage) | 21.2 V at 28.3 A IPPM - Limits downstream voltage stress during 10/1000 μs surge events |
| PPPM (Peak Pulse Power) | 600 W - Sustains high-energy transients without failure under defined waveform and duty cycle |
| ID (Reverse Leakage) | 1.0 μA at VWM - Minimizes standby power loss and avoids false triggering in low-current circuits |
| TJ max. | 150 °C - Enables operation in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - Standardized surface-mount footprint compatible with JEDEC MS-012AC and IPC-7351B |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; dimensions 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); UL 94 V-0 rated molding compound; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (either polarity) | Accepts surge current during positive or negative voltage excursions; symmetrical conduction path |
| Cathode | Transient current exit point (either polarity) | Completes bidirectional clamping loop; no cathode band marking per specification |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units, body modules, and ADAS sensor interfaces |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-line, 2 kV line-to-ground) without degradation |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage exposure to protected ICs such as CAN transceivers, RS-485 drivers, and microcontrollers |
| MSL Level 1 moisture sensitivity | Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and process complexity |
Applications
| Automotive Sensor Interface Protection | Industrial RS-485 Communication Line |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient voltage to ≤21.2 V, preserving 12-bit ADC accuracy and preventing latch-up in downstream MCU. |
Use Scenario: Safeguarding differential data lines in factory automation PLCs exposed to EFT bursts and lightning-induced surges. IC Role / Device Role / Timing Role: Common-mode transient suppressor across A/B bus lines upstream of isolated RS-485 transceiver. Use Value: Maintains signal integrity by clamping common-mode spikes before they couple into receiver inputs, avoiding communication errors. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level protection for USB 2.0 D+/D− lines against contact discharge per IEC 61000-4-2 ±8 kV. IC Role / Device Role / Timing Role: Fast-response TVS placed after primary polymer-based resettable fuse. Use Value: Sub-1 ns response captures ESD energy before it reaches USB PHY, meeting USB-IF compliance requirements. |
Use Scenario: Front-end protection of ADSL/VDSL line interface circuits subjected to longitudinal surges up to 1 kV. IC Role / Device Role / Timing Role: Bidirectional clamp bridging tip/ring pair before transformer coupling and line driver IC. Use Value: Clamps induced surges to safe levels while preserving low-capacitance signal path (<100 pF typical) for broadband DSL performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient 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) and non-AEC-Q101 rated | Limited to commercial-grade consumer/industrial equipment; not suitable for automotive deployment | Select when cost sensitivity outweighs automotive qualification and higher surge margin is unnecessary |
| SMCJ15CA | Higher PPPM (1500 W), same VWM/VC, larger SMC (DO-214AB) package (7.11 mm × 6.22 mm) | Requires PCB layout change; suited for systems needing >600 W surge handling (e.g., power supply inputs) | Choose only if system-level surge testing exceeds IEC 61000-4-5 Level 4 or requires extended surge endurance |
Compared with SMAJ15CA and SMCJ15CA, P6SMB15CAHM3_A/I delivers optimal balance of automotive qualification, compact SMB footprint, and verified 600 W surge capability-making it the preferred choice for space-constrained, AEC-Q101–mandated applications where board area and reliability are co-prioritized.
Availability
P6SMB15CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial communication interfaces, consumer USB ports, and telecom DSL line protection requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB15CAHM3_A/I 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 robust transient suppression in automotive, industrial, and communications systems-designed to replace older SMB-style TVS families with enhanced surge margin, tighter tolerances, and AEC-Q101 compliance.
FAQ
What does the "CA" suffix indicate in P6SMB15CAHM3_A/I?
The "CA" suffix denotes a bidirectional configuration: P6SMB15CAHM3_A/I provides symmetrical clamping for both positive and negative transients, unlike unidirectional variants (e.g., P6SMB15A). This eliminates polarity concerns during placement and enables protection of AC-coupled or floating signal paths without external circuitry.
Is P6SMB15CAHM3_A/I suitable for automotive applications?
Yes-P6SMB15CAHM3_A/I carries the HM3 suffix, indicating halogen-free, RoHS-compliant construction and full AEC-Q101 qualification. It is explicitly rated for under-hood and chassis-mounted automotive electronics, including engine control, body electronics, and ADAS sensor interfaces per ISO 7637-2 and ISO 16750-2 requirements.
What is the maximum clamping voltage of P6SMB15CAHM3_A/I under surge conditions?
The maximum clamping voltage (VC) of P6SMB15CAHM3_A/I is 21.2 V at 28.3 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is guaranteed across temperature and lifetime, ensuring predictable overvoltage limiting for protected ICs such as CAN transceivers or microcontroller I/O pins.
How does the SMB package of P6SMB15CAHM3_A/I compare to SMA or SMC packages?
P6SMB15CAHM3_A/I uses the SMB (DO-214AA) package-smaller than SMC (DO-214AB) and slightly larger than SMA (DO-214AC). Its 4.57 mm × 3.94 mm footprint offers higher power density than SMA (400 W rating) while maintaining compatibility with standard SMT pick-and-place equipment and reflow profiles, unlike larger SMC alternatives.
Does P6SMB15CAHM3_A/I require derating at elevated ambient temperatures?
Yes-P6SMB15CAHM3_A/I must be derated above TA = 25 °C per Figure 2 in the datasheet. At 85 °C ambient, its peak pulse power drops to ~420 W (70 % of 600 W), and at 125 °C, it falls to ~240 W (40 %). Thermal design must account for PCB copper pad area (0.2″ × 0.2″ minimum recommended) to maintain safe junction temperature.
P6SMB15CAHM3_A/I 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:
- Obsolete
- 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:
- 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)
P6SMB15CAHM3_A/I FAQ
1.How can I place an order for P6SMB15CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15CAHM3_A/I 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 P6SMB15CAHM3_A/I reliable?
The price and inventory of P6SMB15CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB15CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15CAHM3_A/I?
P6SMB15CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15CAHM3_A/I 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 P6SMB15CAHM3_A/I?
For technical support, including P6SMB15CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15CAHM3_A/I requirements.
6.How does Aetrix verify that P6SMB15CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB15CAHM3_A/I 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 P6SMB15CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB15CAHM3_A/I?
All P6SMB15CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15CAHM3_A/I, 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 P6SMB15CAHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB15CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15CAHM3_A/I Tags
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