Vishay General Semiconductor - Diodes Division P6SMB100CAHE3_B/H
- Part No.:
- P6SMB100CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB100CAHE3_B/H.pdf
- Description:
- 600W,100V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
P6SMB100CAHE3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 100 V standoff voltage (VWM), 137 V maximum clamping voltage (VC) at 4.4 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power electronics against inductive switching transients and ESD.
For engineers reviewing the P6SMB100CAHE3_B/H datasheet, P6SMB100CAHE3_B/H pinout, P6SMB100CAHE3_B/H application, or P6SMB100CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT assembly on standard 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown behavior in both directions due to its bidirectional construction. Its glass-passivated junction ensures stable avalanche characteristics, while the SMB package provides thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead).
Designed for repetitive surge events at 0.01% duty cycle, it delivers consistent clamping performance under 10/1000 μs transients up to 600 W, with leakage current ≤1.0 μA at 85.5 V standoff and temperature coefficient of VBR at 0.106 %/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 85.5 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown |
| VBR (Breakdown Voltage) | 95.0–105 V at 1.0 mA test current - Ensures reliable, repeatable avalanche initiation across production lots |
| VC (Clamping Voltage) | 137 V at IPPM = 4.4 A - Limits transient voltage seen by protected circuitry during worst-case surge |
| PPPM (Peak Pulse Power) | 600 W with 10/1000 μs waveform - Supports high-energy surge suppression without failure under defined test conditions |
| TJ max | 150 °C - Enables operation in under-hood automotive environments and thermally constrained industrial enclosures |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD22 standards |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with IPC-7351B standard; 0.220" × 0.130" body size |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional configuration | No polarity marking; symmetric conduction enables identical clamping in either direction |
| Cathode | Current exit terminal in forward bias; common node in bidirectional configuration | No band or marking - distinguishes bidirectional P6SMBxxxCA from unidirectional P6SMBxxxA variants |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) when properly mounted on 5 mm × 5 mm copper pads |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and low parameter drift over temperature and life |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS subsystems requiring zero-defect reliability |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes let-through voltage during transients, reducing stress on downstream MOSFET gates and logic inputs |
Applications
| Automotive Body Control Module | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting LIN bus transceiver inputs and microcontroller GPIOs from load-dump and inductive kickback in door module ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector interface to shunt transients before reaching sensitive analog front-end and digital logic. Use Value: Prevents latch-up and gate oxide damage in 3.3 V/5 V MCUs using 137 V clamping headroom above 12 V nominal system voltage. | Use Scenario: Safeguarding 24 V DC digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each isolated input channel, positioned upstream of optocoupler or Schmitt-trigger input stage. Use Value: Maintains functional safety integrity by limiting transient voltage to <140 V, well below optocoupler isolation barrier rating and input stage absolute maximum ratings. |
| Telecom Base Station Sensor Interface | Consumer Appliance Motor Drive Feedback |
Use Scenario: Shielding temperature and humidity sensor signal lines (e.g., I²C, RS-485) from ESD and nearby RF amplifier coupling in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Localized bidirectional TVS at sensor connector, minimizing trace length to reduce inductance and preserve signal integrity. Use Value: Achieves <100 ps response time and <1.0 μA leakage at 85.5 V, preventing false triggers and baseline drift in precision analog sensing paths. | Use Scenario: Protecting hall-effect rotor position feedback signals in BLDC motor drives within washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential encoder lines, placed adjacent to connector to intercept common-mode transients induced by PWM switching noise. Use Value: Clamps ±137 V transients symmetrically without polarity bias, preserving differential signal fidelity and enabling robust commutation timing under EMI-heavy conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA | Same SMB package, 100 V VWM, but lower PPPM (600 W same), higher VC (143 V), non-AEC-Q101 | Lacks automotive qualification; suitable for commercial/industrial use only | Select when AEC-Q101 is not required and cost sensitivity outweighs qualification needs |
| SMCJ100CA | Larger SMC (DO-214AB) package, same 100 V VWM, higher PPPM (1500 W), VC = 165 V, AEC-Q101 available | Higher power handling but 30% larger footprint; requires PCB layout change | Choose for higher surge immunity requirements where board space permits |
Compared with SMBJ100CA and SMCJ100CA, P6SMB100CAHE3_B/H uniquely combines AEC-Q101 qualification, SMB footprint, and 137 V clamping in a single-source automotive-grade solution-enabling drop-in replacement in qualified designs without derating or layout revision.
Availability
P6SMB100CAHE3_B/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, telecom sensor interfaces, and consumer appliance motor control systems requiring stable component supply and full AEC-Q101 traceability.
Supply support for P6SMB100CAHE3_B/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 TVS devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where high pulse power, low clamping, and qualification compliance are mandatory.
FAQ
What does the "CA" suffix indicate in P6SMB100CAHE3_B/H?
The "CA" suffix in P6SMB100CAHE3_B/H denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional variants (e.g., P6SMB100A), this part has no cathode marking and clamps equally for positive and negative transients-ideal for protecting AC-coupled or floating signal lines without polarity constraints. This functionality is confirmed in the Vishay P6SMB datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS".
Is P6SMB100CAHE3_B/H qualified for automotive use?
Yes, P6SMB100CAHE3_B/H is AEC-Q101 qualified, as explicitly stated in the Vishay ordering information table and mechanical data section. The "HE3" base suffix combined with "_B" revision code indicates RoHS-compliant and AEC-Q101-qualified construction. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making P6SMB100CAHE3_B/H suitable for automotive body control, infotainment, and ADAS subsystems.
What is the maximum clamping voltage of P6SMB100CAHE3_B/H and under what test condition?
The maximum clamping voltage (VC) of P6SMB100CAHE3_B/H is 137 V, measured at a peak pulse current (IPPM) of 4.4 A using a 10/1000 μs double-exponential waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table for part number P6SMB100A (bidirectional variant), and applies identically to P6SMB100CAHE3_B/H per Vishay's family documentation. It represents the upper limit of voltage imposed on protected circuitry during standardized surge events.
How does the SMB package of P6SMB100CAHE3_B/H affect thermal performance?
The SMB (DO-214AA) package of P6SMB100CAHE3_B/H provides a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W, as specified in the "THERMAL CHARACTERISTICS" table. When mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, it sustains 5.0 W steady-state power dissipation at TA = 50 °C. This enables reliable operation in compact, thermally dense layouts typical of automotive ECUs and industrial modules.
Can P6SMB100CAHE3_B/H replace unidirectional P6SMB100A in existing designs?
No-P6SMB100CAHE3_B/H cannot directly replace unidirectional P6SMB100A without circuit review. While both share identical VWM (85.5 V), VBR (95–105 V), and VC (137 V), the bidirectional CA variant lacks polarity marking and conducts in both directions, potentially interfering with DC-biased circuits or rectifier paths. Unidirectional types rely on cathode marking for correct orientation; substituting P6SMB100CAHE3_B/H may cause unintended conduction or failed protection. Always verify signal topology before interchange.
P6SMB100CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 4.4A
- 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)
P6SMB100CAHE3_B/H FAQ
1.How can I place an order for P6SMB100CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB100CAHE3_B/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 P6SMB100CAHE3_B/H reliable?
The price and inventory of P6SMB100CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB100CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB100CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB100CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB100CAHE3_B/H?
P6SMB100CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB100CAHE3_B/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 P6SMB100CAHE3_B/H?
For technical support, including P6SMB100CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB100CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB100CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB100CAHE3_B/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 P6SMB100CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB100CAHE3_B/H?
All P6SMB100CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB100CAHE3_B/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 P6SMB100CAHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB100CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB100CAHE3_B/H Tags

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