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Vishay General Semiconductor - Diodes Division P6SMB36CAHE3_A/I
- Part No.:
- P6SMB36CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36CAHE3_A/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,131
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Product details
Overview
P6SMB36CAHE3_A/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 36 V breakdown voltage (VBR min/max = 34.2–37.8 V at 1 mA), 30.8 V standoff voltage (VWM), and clamps to ≤49.9 V at 12 A peak pulse current (10/1000 µs), with 600 W peak pulse power rating. It is AEC-Q101 qualified and used in automotive sensor line protection.
For engineers reviewing the P6SMB36CAHE3_A/I datasheet, P6SMB36CAHE3_A/I pinout, P6SMB36CAHE3_A/I application, or P6SMB36CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, and verified 30.8 V reverse standoff voltage under 1 µA leakage.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, enabling fast response (<1 ns) to ESD and inductive switching events.
Thermal performance is defined by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), with maximum junction temperature of +150 °C. It is rated for repetitive 10/1000 µs pulses at 0.01% duty cycle and meets J-STD-020 MSL Level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30.8 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 34.2–37.8 V at 1 mA - Verified avalanche onset range; ensures predictable turn-on during transients |
| VC (Clamping) | ≤49.9 V at 12 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge |
| PPPM | 600 W - Sustains high-energy transients common in automotive load-dump or inductive switch-off events |
| IPPM | 12 A - Peak surge current capability under standardized 10/1000 µs waveform |
| Junction Temp | -65 to +150 °C - Supports operation in under-hood automotive environments and industrial ambient extremes |
| Leakage (ID) | ≤1.0 µA at VWM - Minimizes standby power loss and avoids false triggering in low-current signal paths |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, 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; enables placement without orientation constraints on PCB |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 surge events without degradation |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream ICs such as CAN transceivers or microcontrollers |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or dry-pack requirements |
| Matte tin-plated leads | Ensures reliable solderability per J-STD-002 and JESD 22-B102, with JESD 201 Class 2 whisker resistance |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting LIN bus or analog sensor inputs (e.g., pressure, temperature) in engine bay modules exposed to load dump and alternator ripple. 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 ISO 16750-2 supply transients while adding <0.5 mm² PCB area in SMB package. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each isolated input channel, coordinated with series current-limiting resistor. Use Value: Enables >100,000 surge cycles per channel without parameter shift, validated per IEC 61000-4-4 (EFT) and -4-5 (surge). |
| Telecom Line Interface | Consumer Appliance Motor Control |
|
Use Scenario: Shielding RS-485 transceiver pins in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary-level TVS placed after gas discharge tube (GDT) in hybrid protection scheme. Use Value: Clamps residual let-through voltage to <50 V within <1 ns, preserving transceiver's ±7 V common-mode range. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Across-motor terminals to absorb inductive kickback energy during PWM switching. Use Value: Eliminates need for snubber RC networks, reducing BOM count and board space while meeting CISPR 14-1 emissions limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36CA | Same VWM (30.8 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost or size drives priority and automotive qualification is unnecessary |
| 1.5KE36CA | Higher PPPM (1500 W), axial DO-201 package, slower thermal response, no AEC-Q101 | Suitable for board-edge or chassis-level protection; incompatible with automated SMT assembly | Choose for legacy through-hole designs or where higher single-pulse energy absorption is required |
Compared with SMAJ36CA and 1.5KE36CA, P6SMB36CAHE3_A/I uniquely combines AEC-Q101 qualification, SMB SMT compatibility, and 600 W pulse rating-making it the only option among the three qualified for new automotive electronics production with automated assembly and IPC-A-610 compliance.
Availability
P6SMB36CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer motor control systems requiring stable component supply across multi-year production cycles.
Supply support for P6SMB36CAHE3_A/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, rectifiers, MOSFETs, and passive components with emphasis on reliability and automotive-grade validation.
The P6SMB Series delivers standardized, high-power TVS protection in compact SMB packages, engineered specifically for robust transient immunity in automotive, industrial, and communications infrastructure applications.
FAQ
What does the "CA" suffix indicate in P6SMB36CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration: P6SMB36CAHE3_A/I clamps transient overvoltages equally in both polarities, making it ideal for AC-coupled or differential signal lines where polarity is undefined. Unlike unidirectional variants (e.g., P6SMB36A), it has no cathode marking and requires no orientation during placement. This symmetry is confirmed in the Vishay datasheet section "DEVICES FOR BIDIRECTION APPLICATIONS".
Is P6SMB36CAHE3_A/I qualified for automotive use?
Yes, P6SMB36CAHE3_A/I is AEC-Q101 qualified, as indicated by the "HE3" suffix and explicitly stated in the Vishay document: "AEC-Q101 qualified available - Automotive ordering code: base P/NHE3 or P/NHM3". It is rated for operation from -65 °C to +150 °C and meets MSL Level 1 reflow requirements, satisfying critical automotive reliability and manufacturability standards.
What is the maximum clamping voltage of P6SMB36CAHE3_A/I under surge conditions?
The maximum clamping voltage (VC) of P6SMB36CAHE3_A/I is 49.9 V at 12 A peak pulse current with a 10/1000 µs waveform, per the Electrical Characteristics table on page 2 of the Vishay datasheet (Document Number: 88370). This value represents the upper limit of voltage imposed on protected circuitry during standardized surge testing.
How does the SMB (DO-214AA) package of P6SMB36CAHE3_A/I compare to SMA or SMC alternatives?
The SMB package of P6SMB36CAHE3_A/I measures 3.94 mm × 2.20 mm × 1.75 mm (L × W × H), offering higher power handling than SMA (DO-214AC) and smaller footprint than SMC (DO-214AB). Its RθJA of 100 °C/W balances thermal performance and board density-enabling 600 W pulse dissipation in space-constrained layouts where SMA would thermally saturate and SMC would consume excess area.
Can P6SMB36CAHE3_A/I be used in place of P6SMB36A in a design?
No-P6SMB36CAHE3_A/I is bidirectional while P6SMB36A is unidirectional. Substituting them requires verifying circuit polarity: P6SMB36A has a cathode band and conducts forward current, whereas P6SMB36CAHE3_A/I has no polarity marking and blocks in both directions until breakdown. Using P6SMB36CAHE3_A/I in a unidirectional path may cause unintended conduction or fail to protect against forward surges.
P6SMB36CAHE3_A/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:
- 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/I FAQ
1.How can I place an order for P6SMB36CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36CAHE3_A/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_A/I reliable?
The price and inventory of P6SMB36CAHE3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB36CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36CAHE3_A/I?
P6SMB36CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36CAHE3_A/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_A/I?
For technical support, including P6SMB36CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36CAHE3_A/I requirements.
6.How does Aetrix verify that P6SMB36CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB36CAHE3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB36CAHE3_A/I?
All P6SMB36CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36CAHE3_A/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_A/I part is unused and in its original packaging.
Return procedure for P6SMB36CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36CAHE3_A/I Tags
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