My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB15CAHE3_B/I
- Part No.:
- P6SMB15CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15CAHE3_B/I.pdf
- Description:
- 600W,15V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,049
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB15CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 15 V standoff voltage (VWM), 21.2 V clamping voltage at 28.3 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects signal lines and power rails in automotive sensor units, industrial I/O interfaces, and telecom front-end circuits against ESD and inductive switching transients.
For engineers reviewing the P6SMB15CAHE3_B/I datasheet, P6SMB15CAHE3_B/I pinout, P6SMB15CAHE3_B/I application, or P6SMB15CAHE3_B/I equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification status, 15 V stand-off rating, 21.2 V max clamping under 28.3 A surge, and SMB package compatibility with automated SMT assembly.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown in both polarities due to its bidirectional construction. It exhibits 14.3 V minimum and 15.8 V maximum breakdown voltage (VBR) at 1 mA test current, with <0.1 μA reverse leakage at 12.8 V stand-off voltage.
Thermally, it supports junction temperatures from –65 °C to +150 °C, features 100 °C/W junction-to-ambient thermal resistance, and is qualified to AEC-Q101 for automotive use. Its glass-passivated junction ensures stable surge performance and low incremental surge resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12.8 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold |
| VBR (Breakdown) | 14.3–15.8 V at 1 mA - Confirmed voltage range where device transitions into avalanche conduction; ensures predictable turn-on |
| VC (Clamping) | 21.2 V at 28.3 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress |
| PPPM | 600 W - Surge energy handling capability per 10/1000 μs waveform; enables protection against high-energy transients |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with J-STD-020 MSL Level 1 reflow |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Leakage (ID) | ≤1.0 μA at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits |
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); cathode/anode terminals are symmetric and interchangeable for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity surge) | Conducts during negative-going overvoltage events; forms symmetrical clamping path with cathode |
| Cathode | Transient current entry (positive polarity surge) | Conducts during positive-going overvoltage events; identical electrical role to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 12 V supply rails |
| AEC-Q101 qualification | Validates suitability for automotive body control modules, ADAS sensor interfaces, and infotainment power inputs |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage overshoot during fast transients, reducing risk of IC latch-up or damage |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics |
Applications
| Automotive Sensor Protection | Industrial Digital 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 voltage clamp placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤21.2 V during 28.3 A surges, preventing damage to 3.3 V/5 V tolerant transceivers while maintaining signal fidelity. |
Use Scenario: Safeguarding PLC digital input channels exposed to relay coil flyback and field wiring surges in factory automation systems. IC Role / Device Role / Timing Role: Parallel-connected TVS across optocoupler input or microcontroller GPIO pins to shunt induced transients. Use Value: Clamps 10/1000 μs surges to 21.2 V within nanoseconds, enabling reliable operation without false triggering or latch-up in 24 V logic interfaces. |
| Telecom Line Interface | Consumer Power Rail Protection |
Use Scenario: Shielding Ethernet PHY magnetics and PoE detection circuitry from lightning-induced surges on outdoor data lines. IC Role / Device Role / Timing Role: Primary-level TVS on secondary side of isolation transformers to absorb common-mode transients before reaching PHY IC. Use Value: 600 W rating handles multi-kV surges; bidirectional symmetry matches transformer-coupled AC signaling requirements. |
Use Scenario: Guarding USB-C VBUS and auxiliary power rails in portable electronics against hot-plug and adapter surge events. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point to divert surge energy before DC-DC regulators. Use Value: 12.8 V stand-off allows safe operation with 9–15 V adapters; 21.2 V clamping prevents overvoltage on 12 V-rated LDOs and PMICs. |
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), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; less suitable for automotive load-dump scenarios | Select when board space is constrained and surge energy is ≤400 W |
| 1.5KE15CA | Same VWM and VC, but through-hole DO-201 package; 1500 W PPPM rating | Requires manual or wave soldering; better for prototyping or high-surge legacy designs | Choose for through-hole assembly or when higher surge margin is required without SMT constraints |
Compared with SMAJ15CA and 1.5KE15CA, P6SMB15CAHE3_B/I delivers optimal balance of 600 W surge capability, AEC-Q101 qualification, and SMB package manufacturability-making it preferred for volume automotive and industrial SMT production where reliability and process compatibility are critical.
Availability
P6SMB15CAHE3_B/I 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 compliance, and consistent SMB package form factor.
Supply support for P6SMB15CAHE3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets robust transient suppression in automotive, industrial, and telecom systems-designed to replace older axial-leaded TVS devices with surface-mount equivalents that meet modern AEC-Q101 and JEDEC standards.
FAQ
What does the "CA" suffix indicate in P6SMB15CAHE3_B/I?
The "CA" suffix denotes a bidirectional configuration: P6SMB15CAHE3_B/I provides symmetrical clamping for both positive and negative voltage transients, unlike unidirectional "A" variants. This eliminates polarity concerns during layout and enables protection of AC-coupled or floating signal paths without external diode pairing. The device has no cathode band marking, confirming its bidirectional nature.
Is P6SMB15CAHE3_B/I suitable for automotive applications?
Yes, P6SMB15CAHE3_B/I is AEC-Q101 qualified (as indicated by the "HE3_B" suffix), meaning it has passed stress tests for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life required for automotive electronics. It is commonly used in body control modules, ADAS sensor interfaces, and infotainment power inputs where transient immunity and long-term reliability are mandatory.
How does the clamping voltage of P6SMB15CAHE3_B/I compare to its breakdown voltage?
P6SMB15CAHE3_B/I has a breakdown voltage (VBR) range of 14.3–15.8 V at 1 mA and a maximum clamping voltage (VC) of 21.2 V at 28.3 A. This yields a clamping ratio (VC/VBR) of approximately 1.43, indicating tight voltage control during surge events. That ratio ensures protected ICs experience minimal overvoltage beyond their absolute maximum ratings, reducing risk of latch-up or permanent damage.
What is the significance of the "_B/I" suffix in P6SMB15CAHE3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB6.8CA–P6SMB220CA voltage range, while "/I" specifies packaging in 13-inch tape-and-reel format with 3200 units per reel. This configuration supports high-volume SMT placement and aligns with automotive and industrial production requirements for traceability and logistics efficiency.
Can P6SMB15CAHE3_B/I be used in place of a unidirectional TVS like P6SMB15A?
No-P6SMB15CAHE3_B/I is bidirectional and lacks polarity marking, whereas P6SMB15A is unidirectional with a cathode band. Substituting them requires verifying circuit topology: P6SMB15CAHE3_B/I suits AC signals, floating buses, or dual-rail protection; P6SMB15A is appropriate only for DC rails with defined ground reference. Using P6SMB15CAHE3_B/I in a unidirectional design adds no harm but wastes cost and board area.
P6SMB15CAHE3_B/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:
- 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:
- 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)
P6SMB15CAHE3_B/I FAQ
1.How can I place an order for P6SMB15CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15CAHE3_B/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 P6SMB15CAHE3_B/I reliable?
The price and inventory of P6SMB15CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB15CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15CAHE3_B/I?
P6SMB15CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15CAHE3_B/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 P6SMB15CAHE3_B/I?
For technical support, including P6SMB15CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB15CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB15CAHE3_B/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 P6SMB15CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB15CAHE3_B/I?
All P6SMB15CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15CAHE3_B/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 P6SMB15CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB15CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15CAHE3_B/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
