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Vishay General Semiconductor - Diodes Division P6SMB68CA-E3/52
- Part No.:
- P6SMB68CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68CA-E3/52.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,004
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Product details
Overview
P6SMB68CA-E3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 58.1 V stand-off voltage (VWM), 64.6–71.4 V breakdown voltage (VBR) at 1 mA test current, 92.0 V maximum clamping voltage (VC) at 6.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB68CA-E3/52 datasheet, P6SMB68CA-E3/52 pinout, P6SMB68CA-E3/52 application, or P6SMB68CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, SMB package compatibility with automated SMT assembly, AEC-Q101 qualification eligibility (via HE3/HM3 variants), low incremental surge resistance, and compliance with UL 94 V-0 flammability rating.
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 sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the low Rsurge supports effective energy diversion during ESD or lightning-induced surges.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. Its 1.0 µA max reverse leakage at VWM minimizes standby power loss in low-current circuits such as sensor bias networks or communication line terminations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 58.1 V - Maximum continuous reverse voltage before significant conduction; defines operating margin below clamping threshold |
| VBR (Breakdown) | 64.6–71.4 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events |
| VC (Clamping) | 92.0 V at 6.5 A - Peak voltage seen by protected circuit during 10/1000 µs transient; determines safe stress level for downstream components |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform; enables robust surge immunity in industrial environments |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with J-STD-020 MSL Level 1 reflow |
| Temperature Range | −65 °C to +150 °C - Full operational and storage range supporting under-hood automotive and wide-temperature industrial use |
| Leakage Current | ≤1.0 µA at VWM - Ensures minimal loading on high-impedance signal paths like analog sensor outputs or I²C lines |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 22-B102 solderability requirements. Polarity: unmarked - bidirectional operation eliminates cathode/anode distinction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; voltage clamping occurs across terminals regardless of polarity - essential for protecting AC signals or differential buses |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled lines (e.g., RS-485, CAN, audio) without external polarity management |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted on recommended copper pads |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift over temperature and lifetime |
| MSL Level 1 rating | Supports standard Pb-free reflow profiles up to 260 °C peak without preconditioning or dry-pack requirements |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications requiring validated reliability and traceable lot control |
Applications
| Industrial Motor Drives | Automotive Sensor Interfaces |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from BLDC motor switching. IC Role / Device Role / Timing Role: Bidirectional TVS placed across isolated gate drive transformer secondaries or current-sense amplifier inputs. Use Value: Clamps transients to ≤92.0 V, preventing latch-up or damage to 100 V-rated op-amps and isolated gate drivers while maintaining signal integrity. | Use Scenario: Shielding LIN bus transceivers and pressure/temperature sensor signal lines from battery dump and load-dump events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bidirectional LIN data line, positioned between connector and transceiver IC. Use Value: Responds in <1 ns to suppress 100 V/10 ms load-dump spikes, preserving communication continuity and meeting ISO 16750-2 requirements. |
| Telecom Power Feeds | Consumer USB-C Port Protection |
Use Scenario: Safeguarding PoE-powered equipment front-end rectifiers and DC-DC controllers from Ethernet cable surge coupling. IC Role / Device Role / Timing Role: Secondary-side TVS on 48 V DC input rail, downstream of primary surge arrestors. Use Value: Limits clamped voltage to 92.0 V, ensuring safe operation of 65 V-rated buck controllers and avoiding secondary overvoltage failure modes. | Use Scenario: Protecting USB-C CC and VCONN lines from ESD and hot-plug transients in portable docking stations. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on CC detection path, co-located with ESD diode array. Use Value: Adds <1 µA leakage at 58.1 V stand-off, preserving accurate CC voltage sensing while enabling ±15 kV contact ESD immunity per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64CA | Lower peak pulse power (400 W), same SMB package, VWM = 64 V, VC = 103 V at 3.9 A | Less robust for high-energy surges; suitable only where IEC 61000-4-5 Level 3 (2 kV) suffices | Select when cost sensitivity outweighs need for 600 W surge margin and tighter clamping |
| 1.5SMC68CA | Higher power (1500 W), larger SMC (DO-214AB) package, VWM = 58.1 V, VC = 118 V at 12.7 A | Requires PCB area increase (~30% larger footprint); better for repeated surge exposure in harsh environments | Choose when system-level surge testing exceeds IEC Level 4 or field failure history demands higher energy absorption |
Compared with SMAJ64CA and 1.5SMC68CA, P6SMB68CA-E3/52 delivers optimal balance of 600 W surge capacity, SMB footprint compatibility, and 92.0 V clamping - making it ideal for space-constrained industrial and automotive modules where layout reuse and proven field reliability are critical.
Availability
P6SMB68CA-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive sensor interfaces, telecom power feeds, and consumer USB-C port protection requiring stable component supply, RoHS-compliant sourcing, and consistent tape-and-reel delivery.
Supply support for P6SMB68CA-E3/52 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, precision, and application-specific optimization.
The P6SMB Series is engineered for high-reliability transient suppression in automotive, industrial, and telecom systems - delivering consistent clamping performance, AEC-Q101 qualification pathways, and robust surge handling in compact surface-mount packages.
FAQ
What is the clamping voltage of P6SMB68CA-E3/52 and how does it protect downstream components?
The P6SMB68CA-E3/52 has a maximum clamping voltage (VC) of 92.0 V at 6.5 A peak pulse current with a 10/1000 µs waveform. This value represents the highest voltage imposed on protected circuitry during a transient event. By limiting the voltage across sensitive components - such as microcontrollers, transceivers, or MOSFET gates - to ≤92.0 V, the P6SMB68CA-E3/52 prevents overvoltage stress that could cause immediate failure or latent degradation. Its low incremental surge resistance ensures rapid energy shunting without excessive voltage overshoot.
Is P6SMB68CA-E3/52 suitable for automotive applications?
Yes - while the base P6SMB68CA-E3/52 is commercial-grade, Vishay offers AEC-Q101 qualified variants under ordering codes P6SMB68CAHE3_B and P6SMB68CAHM3_B (with "_B" denoting AEC-Q101 qualification for VWM ≤ 220 V). These versions undergo extended reliability testing including temperature cycling, humidity bias, and high-temperature operating life, making them appropriate for under-hood and body-control module applications where automotive-grade validation is mandatory.
How does the bidirectional design of P6SMB68CA-E3/52 affect its placement in circuit layouts?
The bidirectional nature of P6SMB68CA-E3/52 eliminates polarity constraints - no cathode marking is present, and either terminal may connect to any node in a differential or AC-coupled path. This simplifies PCB layout for interfaces like RS-485, CAN FD, or audio lines, where traditional unidirectional TVS diodes would require careful orientation or additional components. Layout best practice remains mounting on 0.2" × 0.2" copper pads per terminal to maintain specified thermal and surge performance.
What is the maximum operating temperature for P6SMB68CA-E3/52 and how does derating work above 25 °C?
P6SMB68CA-E3/52 has a maximum junction temperature (TJ) of +150 °C and operates from −65 °C to +150 °C. Its peak pulse power (600 W) is specified at TA = 25 °C and must be linearly derated above that ambient temperature, following the curve in Figure 2 of the datasheet. At 75 °C ambient, for example, allowable PPPM drops to ~450 W. Derating ensures junction temperature stays within safe limits during repetitive surge events and avoids thermal runaway.
Does P6SMB68CA-E3/52 meet RoHS and halogen-free requirements?
Yes - the "E3" suffix in P6SMB68CA-E3/52 indicates RoHS-compliant construction with lead-free matte tin plating and halogen-free molding compound per JEDEC JS709 and IPC-4101D/126 standards. It satisfies EU RoHS Directive 2011/65/EU and is documented in Vishay's material declarations (Doc. #99912). The alternative "M3" suffix denotes an enhanced halogen-free variant with identical electrical specs but stricter bromine/chlorine limits.
P6SMB68CA-E3/52 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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB68CA-E3/52 FAQ
1.How can I place an order for P6SMB68CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68CA-E3/52 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 P6SMB68CA-E3/52 reliable?
The price and inventory of P6SMB68CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB68CA-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB68CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68CA-E3/52?
P6SMB68CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68CA-E3/52 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 P6SMB68CA-E3/52?
For technical support, including P6SMB68CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68CA-E3/52 requirements.
6.How does Aetrix verify that P6SMB68CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB68CA-E3/52 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 P6SMB68CA-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB68CA-E3/52?
All P6SMB68CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68CA-E3/52, 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 P6SMB68CA-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB68CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB68CA-E3/52 Tags
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