My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB6.8CAHE3_A/I
- Part No.:
- P6SMB6.8CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8CAHE3_A/I.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,344
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB6.8CAHE3_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 6.8 V breakdown voltage (VBR min = 6.45 V), 5.8 V stand-off voltage (VWM), 10.5 V maximum clamping voltage at 57.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P6SMB6.8CAHE3_A/I datasheet, P6SMB6.8CAHE3_A/I pinout, P6SMB6.8CAHE3_A/I application, or P6SMB6.8CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM ≈ 1.81), MSL Level 1 moisture sensitivity, and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
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 concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1000 µA at VWM), while the low incremental surge resistance supports fast 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 PCB pads. Its 0.057 %/°C temperature coefficient of VBR ensures predictable voltage drift across automotive operating ranges, and it meets JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise clamping onset threshold under transient stress |
| VWM | 5.8 V - maximum continuous reverse working voltage before significant leakage begins |
| VC @ IPPM | 10.5 V at 57.1 A - peak clamped voltage during 600 W 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 600 W - peak pulse power handling per single transient event, derated above 25 °C ambient |
| IPPM | 57.1 A - maximum non-repetitive peak pulse current supported with 10/1000 µs waveform |
| TJ max | +150 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| MSL Level | Level 1 per J-STD-020 - allows unlimited floor life and standard reflow without baking preconditioning |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); UL 94 V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional configuration | No marking on device - symmetrical terminals enable orientation-agnostic placement on PCB |
| Cathode | Current exit terminal in forward bias; common node in bidirectional configuration | No marking on device - identical physical terminal as Anode; bidirectional operation eliminates polarity dependency |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surge (4 kV line-earth, 2 kV line-line) without degradation |
| Low clamping ratio (VC/VWM = 1.81) | Minimizes overvoltage exposure to protected ICs such as CAN transceivers and ADC front-ends |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage performance across temperature and humidity |
| MSL Level 1 & JESD201 Class 2 | Supports direct placement into high-volume SMT lines without dry-pack or baking logistics |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., temperature, pressure) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage to microcontrollers and signal conditioners during ISO 7637-2 Pulse 1/2/5a events. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Fast-response shunt element across input terminals to divert >1 kV transients before reaching optocoupler or Schmitt trigger inputs. Use Value: Eliminates need for external series impedance or RC filtering, preserving signal integrity and response time. |
| Telecom Line Interface | Consumer USB Port ESD Protection |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs against lightning-induced surges on outdoor telecom wiring. IC Role / Device Role / Timing Role: Primary-level TVS mounted at board edge to absorb bulk surge energy before secondary protection stages. Use Value: Achieves IEC 61000-4-5 compliance up to 4 kV (line-earth) with minimal PCB footprint. |
Use Scenario: Providing system-level ESD immunity on USB 2.0 data lines (D+/D−) in smart home hubs and portable audio devices. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (CJ < 100 pF at 0 V) placed adjacent to connector to suppress ±15 kV contact discharge. Use Value: Maintains signal rise/fall times < 1 ns while meeting IEC 61000-4-2 Level 4 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8CA | Same VBR range and SMB package but lower PPPM (400 W), higher VC (11.5 V), no AEC-Q101 qualification | Suitable for commercial-grade consumer electronics only; not recommended for automotive or industrial environments requiring extended reliability | Select when cost sensitivity outweighs surge margin and automotive qualification requirements |
| SMCJ6.8CA | Higher PPPM (1500 W), larger SMC (DO-214AB) package, same VBR/VC specs, AEC-Q101 available in HE3 variant | Better suited for high-energy surge zones (e.g., power supply inputs) where PCB space permits larger footprint | Choose when system-level surge testing exceeds IEC 61000-4-5 Level 4 or requires higher single-pulse energy absorption |
Compared with SMAJ6.8CA and SMCJ6.8CA, the P6SMB6.8CAHE3_A/I delivers optimal balance of AEC-Q101 compliance, 600 W surge capacity, and SMB footprint - making it ideal for space-constrained automotive and industrial signal-line protection where qualification and reliability are mandatory.
Availability
P6SMB6.8CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer USB port ESD hardening requiring stable component supply across production lifecycles.
Supply support for P6SMB6.8CAHE3_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, automotive qualification, and high-volume manufacturability.
The P6SMB Series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance, low clamping voltage, and automated assembly compatibility are critical.
FAQ
What does the "CA" suffix indicate in P6SMB6.8CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration: the P6SMB6.8CAHE3_A/I functions identically in both polarities, making it suitable for AC signal lines, differential buses (e.g., RS-485), and applications where voltage transients may occur with either polarity. Unlike unidirectional variants (e.g., P6SMB6.8A), it has no cathode marking and does not require orientation-specific placement during SMT assembly.
Is P6SMB6.8CAHE3_A/I qualified for automotive use?
Yes, P6SMB6.8CAHE3_A/I is AEC-Q101 qualified - confirmed by the "HE3" suffix and documented in Vishay's ordering information table (page 3). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating its suitability for under-hood and cabin-mounted automotive electronics such as body control modules and sensor interfaces.
What is the maximum clamping voltage of P6SMB6.8CAHE3_A/I and how is it measured?
The maximum clamping voltage (VC) of P6SMB6.8CAHE3_A/I is 10.5 V, measured at a peak pulse current (IPPM) of 57.1 A using the standardized 10/1000 µs double-exponential waveform. This value represents the highest voltage the device allows across its terminals during a 600 W transient event, ensuring protected downstream components remain within safe operating limits.
How does the thermal resistance of P6SMB6.8CAHE3_A/I affect PCB layout?
P6SMB6.8CAHE3_A/I has a typical RθJA of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain junction temperature below 150 °C under repetitive surge conditions, designers must provide adequate copper area and avoid excessive ambient temperature buildup - especially in enclosed industrial enclosures or automotive junction boxes.
Can P6SMB6.8CAHE3_A/I be used in place of unidirectional TVS diodes?
P6SMB6.8CAHE3_A/I can replace unidirectional TVS diodes only in circuits where bidirectional clamping is acceptable - such as AC-coupled signal paths, differential interfaces, or DC lines with no defined polarity. It must not be substituted in unidirectional applications requiring forward conduction (e.g., reverse-polarity protection), as its symmetrical structure lacks dedicated anode/cathode functionality for rectification.
P6SMB6.8CAHE3_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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57.1A
- 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)
P6SMB6.8CAHE3_A/I FAQ
1.How can I place an order for P6SMB6.8CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8CAHE3_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 P6SMB6.8CAHE3_A/I reliable?
The price and inventory of P6SMB6.8CAHE3_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 P6SMB6.8CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB6.8CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8CAHE3_A/I?
P6SMB6.8CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8CAHE3_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 P6SMB6.8CAHE3_A/I?
For technical support, including P6SMB6.8CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8CAHE3_A/I requirements.
6.How does Aetrix verify that P6SMB6.8CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8CAHE3_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 P6SMB6.8CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB6.8CAHE3_A/I?
All P6SMB6.8CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8CAHE3_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 P6SMB6.8CAHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB6.8CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8CAHE3_A/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 …
