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Vishay General Semiconductor - Diodes Division P6SMB36CAHE3_B/I
- Part No.:
- P6SMB36CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36CAHE3_B/I.pdf
- Description:
- 600W,36V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,402
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Product details
Overview
P6SMB36CAHE3_B/I 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 30.8 V standoff voltage (VWM), 34.2–37.8 V breakdown voltage (VBR) at 1 mA, 49.9 V maximum clamping voltage at 12.0 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB36CAHE3_B/I datasheet, P6SMB36CAHE3_B/I pinout, P6SMB36CAHE3_B/I application, or P6SMB36CAHE3_B/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal resistance (RθJA = 100 °C/W), and compliance with J-STD-020 MSL level 1 reflow profile up to 260 °C peak.
Technical Context
The P6SMB36CAHE3_B/I operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction enables fast response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive 0.01% duty cycle pulses.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads per terminal, it delivers 600 W peak pulse power dissipation while maintaining TJ ≤ 150 °C and meeting AEC-Q101 stress requirements for automotive-grade reliability. Thermal resistance from junction to ambient is 100 °C/W, and junction-to-lead is 20 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30.8 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 34.2–37.8 V at 1 mA - Voltage at which avalanche conduction begins; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 49.9 V at IPPM = 12.0 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability; validated per Fig. 1 derating curve. |
| ID (Reverse Leakage) | 1.0 μA max at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max | 150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| Package | SMB (DO-214AA) - Low-profile surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional device with no polarity marking. Case dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction; either terminal serves as anode or cathode depending on transient polarity - enables single-device protection of AC or floating DC lines. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces per stress test requirements. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy lightning-induced surges and inductive switching spikes without degradation. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles; no moisture sensitivity handling required prior to assembly. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage performance across temperature and lifetime cycling. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V or 5 V logic-level interfaces. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Maintains signal integrity under ±1 kV EFT and ISO 7637-2 Pulse 5a conditions while supporting AEC-Q101-compliant system certification. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary overvoltage clamp on isolated input optocoupler front-end, operating in parallel with upstream series impedance. Use Value: Limits transient voltage to <50 V during 10/1000 μs surges, preventing latch-up or damage to microcontroller GPIOs rated for 36 V absolute maximum. |
| Telecom Line Interface | Consumer USB/Display Port ESD Clamp |
Use Scenario: Secondary surge protection on Ethernet PHY or RS-485 transceiver lines exposed to building-wide lightning coupling. IC Role / Device Role / Timing Role: Fast-response TVS placed after primary gas discharge tube (GDT) to handle residual fast-rising edge transients. Use Value: Sub-1 ns response time captures overshoot not suppressed by slower GDTs, reducing risk of PHY IC failure during surge events. |
Use Scenario: Board-level ESD protection for USB 2.0 data lines and DisplayPort AUX channels in laptops and docking stations. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical at 0 V) bidirectional clamp integrated adjacent to connector pins. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) without distorting 480 Mbps USB signals due to minimal parasitic capacitance and symmetrical VBR matching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Same VWM (30.8 V), lower PPPM (400 W), SMA package (larger RθJA = 125 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump where 600 W is required. | Select when cost sensitivity outweighs peak power requirement and board space allows larger SMA footprint. |
| SMCJ36CA | Same VWM and PPPM (600 W), but SMC package (higher thermal mass, RθJA = 50 °C/W) | Better thermal performance under sustained surge repetition; requires larger PCB area (7.11 mm × 6.22 mm). | Prefer for industrial motor drive I/O where repeated surge events occur and layout accommodates SMC size. |
Compared with SMAJ36CA and SMCJ36CA, the P6SMB36CAHE3_B/I offers optimal balance of 600 W surge capability, AEC-Q101 qualification, and compact SMB footprint - making it preferred for space-constrained automotive and portable industrial designs requiring certified reliability.
Availability
P6SMB36CAHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB36CAHE3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robustness under harsh electrical and thermal stress while enabling automated SMT assembly.
FAQ
What does the "HE3_B/I" suffix indicate in P6SMB36CAHE3_B/I?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction; "B" indicates AEC-Q101 qualification level for P6SMB6.8CA to P6SMB220CA variants; "I" specifies 3200-unit quantity in 13-inch plastic tape and reel packaging. This makes P6SMB36CAHE3_B/I suitable for automotive production with full compliance documentation and high-volume SMT compatibility.
Is P6SMB36CAHE3_B/I unidirectional or bidirectional?
P6SMB36CAHE3_B/I is a bidirectional TVS diode, as confirmed by the "CA" suffix in its part number and explicit documentation stating "Electrical characteristics apply in both directions." It has no polarity marking and provides symmetrical clamping for AC-coupled or floating DC signal lines - unlike unidirectional variants ending in "A" only.
What is the maximum clamping voltage of P6SMB36CAHE3_B/I and at what current is it specified?
The maximum clamping voltage (VC) of P6SMB36CAHE3_B/I is 49.9 V, measured at a peak pulse current (IPPM) of 12.0 A using a 10/1000 μs waveform. This value is guaranteed across temperature and represents the worst-case voltage imposed on protected circuitry during standardized surge testing.
Does P6SMB36CAHE3_B/I meet automotive qualification standards?
Yes, P6SMB36CAHE3_B/I is AEC-Q101 qualified, as indicated by the "HE3_B" suffix and confirmed in Vishay's ordering information notes. It undergoes stress testing for high-temperature operating life, temperature cycling, and ESD - enabling use in engine control units, body electronics, and ADAS sensor modules without additional qualification effort.
What is the thermal resistance of P6SMB36CAHE3_B/I and how does it affect layout design?
P6SMB36CAHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. To maintain TJ ≤ 150 °C under 600 W surge conditions, designers must ensure adequate copper area and avoid thermal bottlenecks - especially important in automotive under-hood applications where ambient temperatures exceed 85 °C.
P6SMB36CAHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
P6SMB36CAHE3_B/I FAQ
1.How can I place an order for P6SMB36CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36CAHE3_B/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 P6SMB36CAHE3_B/I reliable?
The price and inventory of P6SMB36CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB36CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36CAHE3_B/I?
P6SMB36CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36CAHE3_B/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 P6SMB36CAHE3_B/I?
For technical support, including P6SMB36CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB36CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB36CAHE3_B/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 P6SMB36CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB36CAHE3_B/I?
All P6SMB36CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36CAHE3_B/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 P6SMB36CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB36CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36CAHE3_B/I Tags
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