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Vishay General Semiconductor - Diodes Division P6SMB36CAHE3_B/H
- Part No.:
- P6SMB36CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36CAHE3_B/H.pdf
- Description:
- 600W,36V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,715
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Product details
Overview
P6SMB36CAHE3_B/H 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 and power lines. It features a 36 V standoff voltage (VWM), 49.9 V maximum clamping voltage at 12 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial electronics.
For engineers reviewing the P6SMB36CAHE3_B/H datasheet, P6SMB36CAHE3_B/H pinout, P6SMB36CAHE3_B/H application, or P6SMB36CAHE3_B/H equivalent, key selection considerations include bidirectional clamping behavior, SMB (DO-214AA) package compatibility, 150 °C max junction temperature, and compliance with automotive reliability standards.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 34.2–37.8 V (min/max) under 1 mA test current. Its low incremental surge resistance ensures tight clamping during fast transients, and its glass-passivated junction enables stable performance across temperature and life cycles.
The device meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports automated SMT placement, and delivers repeatable 600 W transient suppression at ≤0.01% duty cycle. Its thermal resistance (RθJA = 100 °C/W) and 5.0 W steady-state power dissipation define safe operating limits under continuous bias conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30.8 V - Maximum reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 34.2–37.8 V at 1 mA - Voltage at which device enters avalanche conduction; determines transient response onset |
| VC (Clamping Voltage) | 49.9 V at 12 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream component survivability |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability under standardized 10/1000 μs waveform |
| TJ max | 150 °C - Maximum allowable junction temperature; sets thermal derating envelope for high-ambient designs |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.205" × 0.220" footprint; compatible with standard SMT reflow profiles |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are symmetrical; device functions identically regardless of orientation in circuit.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | One terminal of symmetrical avalanche junction; accepts surge current in either direction |
| Cathode | Transient current exit (negative polarity) | Second terminal of symmetrical avalanche junction; completes bidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 600 W peak pulse power (10/1000 μs) | Supports robust immunity against IEC 61000-4-5 Level 4 surges in industrial and automotive environments |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and direct placement into standard lead-free reflow without baking |
| Glass passivated chip junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity stress |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS subsystems requiring zero-failure reliability |
Applications
| Automotive Sensor Signal Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential or single-ended signal pairs upstream of receiver inputs. Use Value: Limits transient voltage to ≤49.9 V, preventing damage to 3.3 V/5 V interface ICs while maintaining signal integrity during ESD and ISO 7637-2 pulses. |
Use Scenario: Safeguarding digital input channels of programmable logic controllers exposed to 24 V DC field wiring with inductive loads. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across input terminals to shunt surge energy before it reaches optocoupler or MCU GPIO. Use Value: Absorbs up to 600 W of transient energy without degradation, enabling reliable operation in factory-floor environments with frequent relay/contact bounce. |
| Telecom Line Interface Protection | Consumer Power Supply Surge Clamping |
Use Scenario: Shielding Ethernet PHY or RS-485 transceivers from lightning-induced surges on outdoor cabling in telecom base stations. IC Role / Device Role / Timing Role: Primary-level TVS on line-side traces, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: Responds in <1 ps to clamp transients within 49.9 V, preserving signal eye diagram integrity and meeting ITU-T K.21 basic protection requirements. |
Use Scenario: Clamping overvoltage spikes on 12 V or 24 V DC rails in smart home hubs and set-top boxes caused by nearby motor switching or poor-quality adapters. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) bidirectional clamp placed directly at power entry point before LDO or DC-DC converter. Use Value: Prevents latch-up or burnout of downstream regulators with minimal impact on steady-state ripple due to low leakage (<1 μA at 30.8 V). |
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 SMB package, identical VWM (30.8 V) and VC (49.9 V), but rated for 400 W PPPM (vs. 600 W) | Limited to lower-energy transients; not recommended for IEC 61000-4-5 Level 4 or automotive load dump | Select P6SMB36CAHE3_B/H when 600 W surge handling is required; SMAJ36CA suits cost-sensitive, lower-risk consumer applications |
| SMCJ36CA | Higher-power SMC (DO-214AB) package, same VWM/VC specs, rated for 1500 W PPPM | Larger footprint (0.285" × 0.285") and higher thermal mass; requires PCB area and layout revision | Choose SMCJ36CA only if system-level surge testing exceeds 600 W; otherwise, P6SMB36CAHE3_B/H provides optimal size/power balance |
Compared with SMAJ36CA and SMCJ36CA, P6SMB36CAHE3_B/H uniquely delivers 600 W surge capability in the compact SMB footprint while maintaining AEC-Q101 qualification-making it the preferred choice for space-constrained automotive and industrial modules needing certified reliability.
Availability
P6SMB36CAHE3_B/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, telecom line interface hardening, and consumer power rail protection requiring stable component supply and full traceability.
Supply support for P6SMB36CAHE3_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, TVS devices, and power MOSFETs with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series was developed to deliver high-power transient suppression in compact surface-mount packages for automotive, industrial, and communications systems where board space and AEC-Q101 compliance are critical.
FAQ
What is the clamping voltage of P6SMB36CAHE3_B/H at its rated peak pulse current?
The P6SMB36CAHE3_B/H has a maximum clamping voltage (VC) of 49.9 V at 12 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuits during surge events. The actual clamping voltage remains consistent across production lots due to tight VBR tolerances (±5%) and glass-passivated junction control.
Is P6SMB36CAHE3_B/H suitable for automotive applications?
Yes, P6SMB36CAHE3_B/H is AEC-Q101 qualified and specifically designated for automotive use via the "HE3" and "_B" suffixes. It undergoes stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life per AEC-Q101 Rev D. Its 150 °C maximum junction temperature and MSL Level 1 rating support under-hood and infotainment module deployment without derating concerns.
How does the bidirectional configuration of P6SMB36CAHE3_B/H affect circuit layout?
The bidirectional nature of P6SMB36CAHE3_B/H eliminates polarity marking and allows placement in either orientation across protected lines-ideal for differential signals (e.g., RS-485, CAN) or AC-coupled paths. No cathode band identification is needed, simplifying PCB layout and reducing assembly errors. Layout must still follow minimum pad dimensions (0.205" × 0.220") and thermal relief guidelines per Vishay's DO-214AA recommendations.
What is the maximum reverse leakage current for P6SMB36CAHE3_B/H at its stand-off voltage?
At its 30.8 V stand-off voltage (VWM), the P6SMB36CAHE3_B/H exhibits a maximum reverse leakage current (ID) of 1.0 μA at 25 °C. This low leakage ensures minimal power loss in always-on circuits and prevents false triggering in high-impedance sensing nodes. Leakage increases predictably with temperature but remains below 10 μA up to 85 °C per datasheet characterization.
Does P6SMB36CAHE3_B/H require external heat sinking in typical applications?
No, P6SMB36CAHE3_B/H is designed for operation without external heatsinking under normal conditions. Its RθJA of 100 °C/W and 5.0 W steady-state power dissipation allow safe operation with standard 0.2" × 0.2" copper pads per terminal. For repetitive surge events above 0.01% duty cycle or ambient temperatures exceeding 70 °C, thermal simulation using Vishay's transient impedance curves (Fig. 5) is recommended to verify junction temperature stays below 150 °C.
P6SMB36CAHE3_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):
- 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/H FAQ
1.How can I place an order for P6SMB36CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36CAHE3_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 P6SMB36CAHE3_B/H reliable?
The price and inventory of P6SMB36CAHE3_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 P6SMB36CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB36CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36CAHE3_B/H?
P6SMB36CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36CAHE3_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 P6SMB36CAHE3_B/H?
For technical support, including P6SMB36CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB36CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB36CAHE3_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 P6SMB36CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB36CAHE3_B/H?
All P6SMB36CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36CAHE3_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 P6SMB36CAHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB36CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36CAHE3_B/H Tags
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