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Vishay General Semiconductor - Diodes Division P6SMB36CAHE3_A/H
- Part No.:
- P6SMB36CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36CAHE3_A/H.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,850
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Product details
Overview
P6SMB36CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 36 V standoff voltage (VWM), 49.9 V clamping voltage (VC) at 12.0 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects sensitive signal lines and power rails in automotive, industrial, and telecom systems against ESD, lightning surges, and inductive switching transients.
For engineers reviewing the P6SMB36CAHE3_A/H datasheet, P6SMB36CAHE3_A/H pinout, P6SMB36CAHE3_A/H application, or P6SMB36CAHE3_A/H equivalent, this device is selected for robust bidirectional surge protection where AEC-Q101 qualification, low clamping ratio, and MSL Level 1 reflow compatibility are required in space-constrained PCB layouts.
Technical Context
The P6SMB36CAHE3_A/H operates as a bidirectional avalanche diode, symmetrically clamping voltage transients above ±36 V in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM), while its low incremental surge resistance enables fast response to sub-microsecond transients.
Designed for automated SMT assembly, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports 150 °C maximum junction temperature, and delivers consistent clamping performance across -65 °C to +150 °C operating range - critical for under-hood automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30.8 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 34.2–37.8 V at 1.0 mA - Verified avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 49.9 V at IPPM = 12.0 A - Peak voltage seen by protected circuit during 600 W transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W with 10/1000 μs waveform - Standardized surge energy handling capacity per IEC 61000-4-5. |
| ID (Reverse Leakage) | <1.0 μA at 30.8 V - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max. | +150 °C - Enables operation in under-hood automotive and high-temperature industrial enclosures. |
| Package | SMB (DO-214AA) - Industry-standard 2-pin surface-mount outline with 5.0 mm × 5.0 mm copper pad thermal footprint. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional - no cathode/anode marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no polarity dependency in layout. |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; forms symmetrical clamping path across protected line and ground or differential pair. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces requiring zero-failure reliability. |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation when properly mounted. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free reflow profiles without preconditioning or special handling. |
| Low clamping ratio (VC/VWM = 1.62) | Minimizes voltage overshoot during transients - critical for protecting 3.3 V or 5 V logic interfaces. |
| Glass-passivated junction | Ensures long-term stability of breakdown characteristics and low parametric drift over temperature and life. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver inputs and outputs from load dump and ISO 7637-2 pulses in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS placed between CAN_H/CAN_L and chassis ground to clamp common-mode surges up to ±40 V. Use Value: Maintains bus integrity during 12 V system load dump (ISO 7637-2 Pulse 5a) with clamping below 50 V, preventing transceiver latch-up. |
Use Scenario: Shielding RS-485 and CAN FD physical layer ICs from EFT bursts and lightning-induced surges in factory automation PLCs. IC Role / Device Role / Timing Role: Differential-line TVS across data pair (A/B) and ground, absorbing 600 W transients without signal distortion. Use Value: Enables >100,000 surge cycles at 12 A IPPM while preserving signal rise time due to low junction capacitance (~200 pF at 0 V). |
| Telecom Power Supply Input Protection | Consumer USB Port ESD Clamp |
|
Use Scenario: Safeguarding AC/DC adapter secondary-side DC output (24–48 V) against induced surges from nearby motor drives or relay switching. IC Role / Device Role / Timing Role: Unidirectional/bidirectional TVS connected between VOUT and GND to limit transient excursions during field wiring faults. Use Value: Limits peak voltage to ≤49.9 V during 600 W surges, protecting downstream DC-DC controllers rated for 36 V input max. |
Use Scenario: Adding secondary-level ESD protection on USB 2.0 D+/D− lines behind primary TVS in portable audio docks and smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp shunting ESD strikes (IEC 61000-4-2 ±15 kV contact) to ground before reaching PHY IC. Use Value: Delivers <1 ns response time and clamps ±15 kV ESD to <30 V, meeting USB-IF compliance without degrading 480 Mbps signal integrity. |
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 (36 V), lower PPPM (400 W), SMA package (smaller thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when board space is tighter and surge requirements are ≤400 W (e.g., consumer IoT). |
| SMCJ36CA | Same VWM (36 V), higher PPPM (1500 W), larger SMC package (DO-214AB) | Requires larger PCB footprint and higher mounting copper area (≥10 mm² per pad) | Choose for industrial motor drive I/O protection where 1500 W surge immunity is mandated. |
Compared with SMAJ36CA and SMCJ36CA, the P6SMB36CAHE3_A/H delivers optimal balance of 600 W surge rating, AEC-Q101 qualification, and SMB footprint - making it the preferred choice for automotive-grade and mid-power industrial designs where reliability and board area are jointly constrained.
Availability
P6SMB36CAHE3_A/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom power supplies, and USB interface protection requiring stable component supply and full traceability.
Supply support for P6SMB36CAHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure, designed to meet stringent AEC-Q101, IEC 61000-4-2/4-5, and UL 94 V-0 requirements out-of-the-box.
FAQ
What does the "HE3" suffix indicate in P6SMB36CAHE3_A/H?
The "HE3" suffix in P6SMB36CAHE3_A/H denotes RoHS-compliant construction with AEC-Q101 qualification, matte tin-plated leads, and compliance with JESD 201 Class 2 whisker resistance. The "_A/H" indicates revision A and 7″ tape-and-reel packaging (750 units per reel). This distinguishes it from commercial-grade E3/M3 variants and non-automotive versions.
Is P6SMB36CAHE3_A/H unidirectional or bidirectional?
P6SMB36CAHE3_A/H is a bidirectional TVS diode, as confirmed by the "CA" suffix and absence of cathode band marking. It provides symmetrical clamping for both positive and negative transients across the same two terminals - essential for protecting AC-coupled lines, differential buses like CAN, or floating power rails where polarity is undefined.
What is the maximum clamping voltage of P6SMB36CAHE3_A/H at rated surge current?
The maximum clamping voltage (VC) of P6SMB36CAHE3_A/H is 49.9 V at 12.0 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value is guaranteed per the Vishay datasheet (Document Number: 88370, Rev. 09-Jan-2024) and defines the worst-case voltage imposed on protected circuitry during standardized surge events.
Can P6SMB36CAHE3_A/H replace P6SMB36AHE3_A/H in a design?
No - P6SMB36CAHE3_A/H is bidirectional, while P6SMB36AHE3_A/H is unidirectional. Substituting them requires verifying circuit polarity: unidirectional types require correct cathode orientation and only suppress positive transients relative to ground, whereas the "CA" version clamps both polarities. Using the wrong type risks incomplete protection or forward conduction failure.
What PCB pad layout is recommended for optimal thermal and surge performance of P6SMB36CAHE3_A/H?
Vishay specifies a minimum 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pad per terminal for P6SMB36CAHE3_A/H to achieve rated 600 W pulse power. Use internal or external copper planes connected via multiple vias to enhance heat dissipation and reduce thermal impedance - critical for sustaining repetitive surge duty cycles in automotive and industrial applications.
P6SMB36CAHE3_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):
- 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:
- -
- 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_A/H FAQ
1.How can I place an order for P6SMB36CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36CAHE3_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 P6SMB36CAHE3_A/H reliable?
The price and inventory of P6SMB36CAHE3_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 P6SMB36CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB36CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36CAHE3_A/H?
P6SMB36CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36CAHE3_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 P6SMB36CAHE3_A/H?
For technical support, including P6SMB36CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36CAHE3_A/H requirements.
6.How does Aetrix verify that P6SMB36CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB36CAHE3_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 P6SMB36CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB36CAHE3_A/H?
All P6SMB36CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36CAHE3_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 P6SMB36CAHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB36CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36CAHE3_A/H Tags
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