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Vishay General Semiconductor - Diodes Division P6SMB68CAHE3_A/H
- Part No.:
- P6SMB68CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68CAHE3_A/H.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,822
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Product details
Overview
P6SMB68CAHE3_A/H 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 68 V breakdown voltage (VBR = 64.6–71.4 V at IT = 1.0 mA), 600 W peak pulse power (10/1000 µs), and clamps to ≤92.0 V at 6.5 A peak pulse current - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P6SMB68CAHE3_A/H datasheet, P6SMB68CAHE3_A/H pinout, P6SMB68CAHE3_A/H application, or P6SMB68CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and compliance with IEC 61000-4-2/4-4/4-5 transient immunity requirements.
Technical Context
This device operates as a voltage-clamped shunt protector: during overvoltage events exceeding its standoff voltage (VWM = 58.1 V), it avalanches rapidly (<1 ns response) to divert surge current away from downstream circuitry. Its bidirectional symmetry enables use on AC-coupled or differential lines without polarity concerns.
Thermal design relies on low RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), enabling reliable operation up to TJ = +150 °C. The glass-passivated junction and MSL Level 1 rating support high-yield reflow assembly per J-STD-020 at 260 °C peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 64.6–71.4 V at 1.0 mA test current - defines precise avalanche onset threshold for bidirectional clamping |
| Standoff Voltage VWM | 58.1 V maximum - ensures no conduction during normal operation up to rated system voltage |
| Clamping Voltage VC | ≤92.0 V at 6.5 A IPPM (10/1000 µs) - limits maximum stress seen by protected IC or MOSFET |
| Peak Pulse Power PPPM | 600 W - supports robust protection against IEC 61000-4-5 Level 3 (1 kV/42 Ω) surges |
| Package | SMB (DO-214AA) - 0.205" × 0.220" footprint with matte tin leads, compatible with automated SMT placement |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Operating Temperature | −65 °C to +150 °C - suitable for under-hood and industrial ambient environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | Either terminal serves as input/output - no DC polarity dependency; connects across protected line pair (e.g., RS-485 A/B, CAN H/L) |
| Case / Body | Thermal and mechanical reference | Non-conductive epoxy body; thermal path to PCB copper pads (0.2" × 0.2" recommended per terminal) |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against severe lightning-induced surges per IEC 61000-4-5 |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage margin required for protected ICs, improving system-level robustness |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and supports standard lead-free assembly processes |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
Applications
| Automotive Sensor Interface Protection | Industrial RS-485 Communication Line |
|---|---|
|
Use Scenario: Protecting ABS wheel speed sensor signal lines from load dump and ISO 7637-2 transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional shunt TVS placed across differential sensor output pins to clamp ±100 V spikes within nanoseconds. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and ADC front-ends while maintaining signal integrity below 58.1 V standby. |
Use Scenario: Safeguarding factory automation PLC RS-485 transceivers against ESD and surge coupling from adjacent motor drives. IC Role / Device Role / Timing Role: Paired TVS devices (one per line) referenced to ground, absorbing common-mode surges up to 600 W without disrupting 10 Mbps data transmission. Use Value: Enables >100,000 insertion cycles of field wiring without degradation, meeting IEC 61000-4-2 Level 4 (±15 kV air) and IEC 61000-4-4 Level 3 (±2 kV) |
| Consumer USB-C Port ESD Clamp | Telecom DSL Line Surge Suppression |
|
Use Scenario: Secondary ESD protection on USB-C CC and VCONN lines where primary TVS cannot meet full IEC 61000-4-2 requirements. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp limiting voltage to ≤92 V during ±8 kV contact discharge events. Use Value: Adds <1 pF parasitic capacitance to signal path while achieving sub-100 ns response - no impact on USB 2.0 eye diagram. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers exposed to induced surges from nearby AC mains or lightning. IC Role / Device Role / Timing Role: Placed between transformer secondary and line driver IC to absorb longitudinal mode surges up to 10/700 µs waveform energy. Use Value: Maintains VWM = 58.1 V margin above peak DSL line voltage (±30 V), preventing false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ68CA | Same VBR range (64.6–71.4 V), but lower PPPM = 400 W; SMA package (smaller footprint, higher RθJA) | Limited to lighter-duty consumer electronics; not AEC-Q101 qualified | Select when board space is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| 1.5KE68CA | Higher PPPM = 1500 W, axial-leaded DO-201 package; slower thermal response and incompatible with SMT | Requires through-hole assembly; unsuitable for high-density or automotive vibration environments | Select only for legacy through-hole designs requiring higher energy handling than P6SMB68CAHE3_A/H provides |
Compared with SMAJ68CA and 1.5KE68CA, P6SMB68CAHE3_A/H delivers optimal balance of AEC-Q101 reliability, 600 W surge capacity, and SMB SMT compatibility - making it the preferred choice for new automotive and industrial designs requiring production-ready surface-mount TVS protection.
Availability
P6SMB68CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, consumer USB-C port protection, and telecom DSL line surge suppression requiring stable component supply and AEC-Q101 traceability.
Supply support for P6SMB68CAHE3_A/H 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, efficiency, and application-specific performance.
The P6SMB series was developed for high-reliability transient suppression in automotive, industrial, and communications systems - delivering consistent clamping behavior, AEC-Q101 validation, and optimized SMT manufacturability.
FAQ
What is the exact breakdown voltage range for P6SMB68CAHE3_A/H?
The P6SMB68CAHE3_A/H has a guaranteed breakdown voltage (VBR) range of 64.6 V to 71.4 V at a test current of 1.0 mA, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures predictable clamping onset across production lots and temperature ranges, critical for protecting sensitive analog front-ends in automotive and industrial applications. The P6SMB68CAHE3_A/H maintains this specification under both positive and negative polarity due to its bidirectional construction.
Is P6SMB68CAHE3_A/H suitable for automotive applications?
Yes, P6SMB68CAHE3_A/H is AEC-Q101 qualified and specifically designated for automotive use via the "HE3" suffix, indicating RoHS-compliant and automotive-grade reliability testing. It meets requirements for temperature cycling, high-temperature reverse bias (HTRB), and ESD robustness. The P6SMB68CAHE3_A/H is deployed in engine control units, ADAS camera modules, and body electronics where protection against load dump and ISO 7637-2 transients is mandatory.
What is the maximum clamping voltage of P6SMB68CAHE3_A/H at rated surge current?
The P6SMB68CAHE3_A/H clamps to a maximum of 92.0 V at its rated peak pulse current (IPPM) of 6.5 A under the standardized 10/1000 µs waveform. This clamping voltage directly determines the peak stress imposed on downstream components such as RS-485 transceivers or microcontroller I/O pins. The low clamping ratio (VC/VBR ≈ 1.36) reflects efficient avalanche energy absorption, a key differentiator of the P6SMB68CAHE3_A/H versus generic TVS diodes.
Does P6SMB68CAHE3_A/H have polarity markings on the package?
No, P6SMB68CAHE3_A/H is a bidirectional TVS diode and carries no polarity marking on its SMB (DO-214AA) package. Its symmetrical construction means either terminal functions identically - essential for protecting AC-coupled or differential signal pairs like CAN bus, RS-422, or Ethernet PHY lines. This eliminates orientation errors during automated placement and simplifies PCB layout compared to unidirectional alternatives requiring cathode band alignment.
What is the thermal resistance profile of P6SMB68CAHE3_A/H?
The P6SMB68CAHE3_A/H exhibits a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. These values enable sustained operation at +150 °C junction temperature under continuous 5.0 W power dissipation, supporting high-reliability deployment in under-hood automotive and industrial control cabinet environments. The P6SMB68CAHE3_A/H thermal performance is validated per JEDEC JESD51 standards.
P6SMB68CAHE3_A/H 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):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB68CAHE3_A/H FAQ
1.How can I place an order for P6SMB68CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68CAHE3_A/H 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 P6SMB68CAHE3_A/H reliable?
The price and inventory of P6SMB68CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB68CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB68CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68CAHE3_A/H?
P6SMB68CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68CAHE3_A/H 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 P6SMB68CAHE3_A/H?
For technical support, including P6SMB68CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68CAHE3_A/H requirements.
6.How does Aetrix verify that P6SMB68CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB68CAHE3_A/H 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 P6SMB68CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB68CAHE3_A/H?
All P6SMB68CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68CAHE3_A/H, 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 P6SMB68CAHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB68CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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