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Vishay General Semiconductor - Diodes Division P6SMB6.8CAHM3_A/H
- Part No.:
- P6SMB6.8CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8CAHM3_A/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,690
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Product details
Overview
P6SMB6.8CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping transient overvoltages 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 to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6SMB6.8CAHM3_A/H datasheet, P6SMB6.8CAHM3_A/H pinout, P6SMB6.8CAHM3_A/H application, or P6SMB6.8CAHM3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, low clamping voltage under surge, and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamped avalanche diode, responding within <1 ps to transients induced by inductive switching or ESD events. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity constraints, and its glass-passivated junction ensures stable leakage (<1000 µA at VWM) across -65 °C to +150 °C operating range.
The P6SMB6.8CAHM3_A/H delivers 600 W peak pulse power per 10/1000 µs waveform with 0.01% duty cycle, supported by low incremental surge resistance and thermal resistance of 100 °C/W (junction-to-ambient). It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements, confirming suitability for high-reliability reflow processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 6.45 V - Ensures reliable avalanche conduction onset above normal operating voltage |
| VWM | 5.8 V - Maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 10.5 V - Clamped voltage during 57.1 A surge, limiting downstream component stress |
| PPPM | 600 W - Peak transient energy absorption capacity with 10/1000 µs waveform |
| IPPM | 57.1 A - Maximum non-repetitive surge current the device safely clamps |
| TJ max | +150 °C - Enables operation in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - Standardized SMT footprint compatible with IPC-7351B land patterns |
Pinout & Package
SMB (DO-214AA) surface-mount package with matte tin-plated leads; no polarity marking for bidirectional configuration - both terminals are electrically symmetric and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | Either terminal serves as input/output for clamping; no cathode band marking required |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics including engine control units and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC J-STD-609A Class 1 material requirements |
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges |
| Low clamping ratio (VC/VBR ≈ 1.63) | Minimizes voltage overshoot during fast transients, preserving signal integrity on protected lines |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free soldering without moisture sensitivity concerns |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., temperature, pressure) from load dump and inductive kickback in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to limit transient excursions. Use Value: Prevents latch-up or gate oxide damage in connected microcontrollers and transceivers during ISO 16750-2 load dump events. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing >50 A surge currents before reaching downstream optocouplers or level shifters. Use Value: Eliminates need for external series impedance or RC snubbers while maintaining fast response to sub-microsecond transients. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side transient suppression on 5–12 V DC outputs of wall adapters subjected to ESD and conducted noise. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp shunting surge energy away from USB port regulators and charging ICs. Use Value: Maintains output regulation stability during 8 kV contact ESD events per IEC 61000-4-2 without affecting steady-state efficiency. |
Use Scenario: Overvoltage protection on Ethernet PHY interface lines and telephone line cards handling lightning-induced surges. IC Role / Device Role / Timing Role: First-stage protection element placed before common-mode chokes and isolation transformers. Use Value: Limits induced common-mode voltages to <12 V peak, enabling safe operation of 3.3 V or 5 V PHY ICs. |
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 (6.45–7.14 V), lower PPPM = 400 W, SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a load dump | Select when board space is constrained and surge energy does not exceed 400 W capability |
| 1.5SMC6.8CA | Same VBR, PPPM = 1500 W, larger SMC package (DO-214AB), higher IPPM = 123 A | Overqualified for most 600 W applications; requires larger PCB area and higher thermal mass | Choose only when legacy designs mandate SMC footprint or require >600 W margin |
Compared with SMAJ6.8CA and 1.5SMC6.8CA, the P6SMB6.8CAHM3_A/H delivers optimal balance of 600 W surge handling, AEC-Q101 qualification, SMB footprint compatibility, and halogen-free compliance - making it the preferred choice for new automotive and industrial designs requiring validated reliability and standardized assembly.
Availability
P6SMB6.8CAHM3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, and telecom line interface circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB6.8CAHM3_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, 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, precise clamping, and repeatable SMT performance are mandatory.
FAQ
What does the "CA" suffix indicate in P6SMB6.8CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration - meaning the P6SMB6.8CAHM3_A/H functions identically in both polarities, with no cathode marking and symmetrical clamping behavior. This enables use on AC signals, differential pairs, or ungrounded rails where polarity cannot be guaranteed, unlike unidirectional "A" variants that require correct orientation relative to ground.
Is P6SMB6.8CAHM3_A/H qualified for automotive applications?
Yes, the "HM3" suffix confirms P6SMB6.8CAHM3_A/H is halogen-free, RoHS-compliant, and AEC-Q101 qualified - verified for use in automotive electronics including body control modules, infotainment systems, and ADAS sensors. The qualification covers temperature cycling, humidity testing, and surge endurance per AEC standards.
What is the maximum clamping voltage of P6SMB6.8CAHM3_A/H under surge conditions?
The P6SMB6.8CAHM3_A/H has a maximum clamping voltage (VC) of 10.5 V at 57.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Can P6SMB6.8CAHM3_A/H replace unidirectional TVS diodes in existing designs?
No - the P6SMB6.8CAHM3_A/H is strictly bidirectional and lacks polarity marking; substituting it for a unidirectional part (e.g., P6SMB6.8AHM3_A/H) may compromise protection if the original design relies on forward conduction or cathode-grounded placement. Always verify circuit topology and clamping direction before replacement.
What PCB pad layout is recommended for P6SMB6.8CAHM3_A/H?
Vishay specifies 0.2" x 0.2" (5.0 mm x 5.0 mm) copper pads per terminal for P6SMB6.8CAHM3_A/H to achieve rated 600 W pulse power. Smaller pads reduce thermal dissipation and derate peak power; the SMB outline drawing in Document 88370 provides exact dimensions (e.g., 0.155" length, 0.130" width) for land pattern alignment.
P6SMB6.8CAHM3_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):
- 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:
- 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)
P6SMB6.8CAHM3_A/H FAQ
1.How can I place an order for P6SMB6.8CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8CAHM3_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 P6SMB6.8CAHM3_A/H reliable?
The price and inventory of P6SMB6.8CAHM3_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 P6SMB6.8CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB6.8CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8CAHM3_A/H?
P6SMB6.8CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8CAHM3_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 P6SMB6.8CAHM3_A/H?
For technical support, including P6SMB6.8CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB6.8CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8CAHM3_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 P6SMB6.8CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB6.8CAHM3_A/H?
All P6SMB6.8CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8CAHM3_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 P6SMB6.8CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB6.8CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8CAHM3_A/H Tags
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