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Vishay General Semiconductor - Diodes Division P6SMB75CAHE3_B/I
- Part No.:
- P6SMB75CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75CAHE3_B/I.pdf
- Description:
- 600W,75V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,520
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Product details
Overview
P6SMB75CAHE3_B/I 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 75 V standoff voltage (VWM), 103 V maximum clamping voltage at 5.8 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform. It is AEC-Q101 qualified and RoHS-compliant, targeting automotive and industrial electronics protection.
For engineers reviewing the P6SMB75CAHE3_B/I datasheet, P6SMB75CAHE3_B/I pinout, P6SMB75CAHE3_B/I application, or P6SMB75CAHE3_B/I equivalent, key selection considerations include bidirectional clamping behavior, 75 V reverse standoff rating, 103 V clamping voltage under 5.8 A surge, SMB (DO-214AA) package compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 85.5–94.5 V (min/max) and test current IT = 1.0 mA. Its low incremental surge resistance enables fast response to ESD and lightning-induced transients while maintaining stable clamping performance across temperature.
The device uses a glass-passivated junction and is mounted on standard 0.2" × 0.2" copper pads per JEDEC DO-214AA layout. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation up to TJ = +150 °C with 5.0 W steady-state power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 75 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (Breakdown Voltage) | 85.5–94.5 V at 1.0 mA - Confirmed avalanche onset range under standardized test conditions |
| VC (Clamping Voltage) | 103 V at IPPM = 5.8 A - Peak voltage seen by protected circuit during 10/1000 μs transient |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling per single 10/1000 μs pulse |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" × 0.130" footprint and J-STD-020 MSL Level 1 rating |
| AEC-Q101 Qualified | Yes - Validated for automotive applications per stress test requirements including HTOL, TC, HAST |
| RoHS & Halogen-Free Status | RoHS-compliant; HE3 suffix indicates AEC-Q101 + RoHS; no halogen-free claim for HE3 variant |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical terminals; conducts in either direction when voltage exceeds VBR magnitude |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables symmetrical overvoltage protection on AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power (10/1000 μs) | Handles high-energy transients common in automotive load-dump and inductive switching events |
| AEC-Q101 qualification | Validates reliability for under-hood automotive modules, infotainment interfaces, and ADAS sensor lines |
| Low clamping ratio (VC/VBR ≈ 1.14) | Minimizes voltage overshoot during surge, reducing stress on downstream ICs like CAN transceivers or microcontrollers |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without moisture sensitivity limitations |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control units from load-dump spikes and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point before signal conditioning amplifier. Use Value: Limits transient voltage to ≤103 V, preventing latch-up or damage to 5 V or 3.3 V ADC inputs while maintaining signal integrity below 75 V normal operation. |
Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ESD and ISO 7637-2 pulse 1/2a/5a surges in factory automation nodes. IC Role / Device Role / Timing Role: Paired TVS devices (one per line) providing symmetrical clamping referenced to ground. Use Value: Maintains CAN bus signal fidelity by clamping transients within 103 V while preserving <10 pF junction capacitance to avoid data rate degradation at 1 Mbps. |
| Consumer Power Adapter Input Stage | Telecom DSL Line Surge Protection |
Use Scenario: Secondary-side transient suppression on 12 V DC output rails of wall adapters exposed to mains-borne noise. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting surge energy to ground after primary-side filtering. Use Value: Withstands repetitive 600 W pulses at 0.01% duty cycle, enabling robust protection without thermal runaway in compact enclosed designs. |
Use Scenario: Front-end protection for ADSL/VDSL line interface ICs subjected to lightning-induced longitudinal surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Bidirectional suppressor bridging tip/ring to ground, absorbing common-mode transients. Use Value: 75 V VWM ensures no conduction during normal ±40 V line signaling, while 103 V VC limits surge exposure to PHY-level transceivers rated for 120 V abs max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75CA | Same VWM (75 V) and VC (103 V), but 400 W PPPM rating and SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; unsuitable for automotive load-dump where 600 W is required | Select only if space-constrained and surge energy is confirmed ≤400 W |
| 1.5KE75CA | Through-hole TO-218 package, same 75 V VWM and 103 V VC, 1500 W PPPM rating | Not surface-mountable; requires PCB real estate and wave-solder process; higher mechanical robustness | Choose for legacy through-hole designs or where higher pulse energy margin is needed and SMT is not mandatory |
Compared with SMAJ75CA and 1.5KE75CA, P6SMB75CAHE3_B/I delivers optimal balance of 600 W surge capability, SMB footprint compatibility, and AEC-Q101 qualification-making it the preferred choice for new automotive and industrial SMT designs requiring validated reliability and standardized mounting.
Availability
P6SMB75CAHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer power adapter outputs, and telecom DSL line protection requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB75CAHE3_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 is engineered for high-reliability transient suppression in automotive, industrial, and communications systems-delivering consistent clamping performance, AEC-Q101 validation, and robust surge handling in compact SMB packages.
FAQ
What is the clamping voltage of P6SMB75CAHE3_B/I at its rated peak pulse current?
The P6SMB75CAHE3_B/I has a maximum clamping voltage (VC) of 103 V when subjected to its rated peak pulse current (IPPM) of 5.8 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuits during surge events. The P6SMB75CAHE3_B/I maintains this clamping performance across its operational temperature range.
Is P6SMB75CAHE3_B/I suitable for automotive applications?
Yes, P6SMB75CAHE3_B/I is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" and "_B" suffixes in its ordering code. It meets stress test requirements including high-temperature operating life, temperature cycling, and humidity testing. The P6SMB75CAHE3_B/I is commonly deployed in engine control units, body electronics, and ADAS sensor modules where certified reliability is mandatory.
What does the "CA" suffix indicate in P6SMB75CAHE3_B/I?
The "CA" suffix in P6SMB75CAHE3_B/I denotes a bidirectional configuration-meaning the device provides symmetrical transient voltage suppression in both forward and reverse directions. Unlike unidirectional variants (e.g., P6SMB75A), the P6SMB75CAHE3_B/I has no cathode band marking and functions identically regardless of voltage polarity, making it ideal for AC-coupled or floating signal lines such as CAN bus or Ethernet pairs.
What is the thermal resistance of P6SMB75CAHE3_B/I, and how does it affect layout design?
P6SMB75CAHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W, measured on 0.2" × 0.2" copper pads per JEDEC DO-214AA guidelines. These values require adherence to the recommended pad layout to ensure safe operation at 5.0 W steady-state dissipation and prevent thermal runaway during repetitive surges. Deviating from the specified copper area increases RθJA and reduces safe operating margins.
How does P6SMB75CAHE3_B/I compare to unidirectional P6SMB75AHE3_B/I in circuit implementation?
P6SMB75CAHE3_B/I differs from the unidirectional P6SMB75AHE3_B/I by offering symmetrical clamping without polarity constraints-eliminating the need for orientation-aware placement and enabling use on differential or AC signals. While both share identical VWM (75 V), VBR, and VC (103 V), only the unidirectional version supports forward conduction and IFSM (100 A surge), which is irrelevant for P6SMB75CAHE3_B/I's bidirectional role. Layouts using P6SMB75CAHE3_B/I omit cathode marking verification.
P6SMB75CAHE3_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):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
P6SMB75CAHE3_B/I FAQ
1.How can I place an order for P6SMB75CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75CAHE3_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 P6SMB75CAHE3_B/I reliable?
The price and inventory of P6SMB75CAHE3_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 P6SMB75CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB75CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75CAHE3_B/I?
P6SMB75CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75CAHE3_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 P6SMB75CAHE3_B/I?
For technical support, including P6SMB75CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB75CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB75CAHE3_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 P6SMB75CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB75CAHE3_B/I?
All P6SMB75CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75CAHE3_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 P6SMB75CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB75CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB75CAHE3_B/I Tags
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