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Vishay General Semiconductor - Diodes Division P6SMB30CAHM3/H
- Part No.:
- P6SMB30CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CAHM3/H.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,715
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Product details
Overview
P6SMB30CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB30CAHM3/H datasheet, P6SMB30CAHM3/H pinout, P6SMB30CAHM3/H application, or P6SMB30CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, and thermal resistance (RθJA = 100 °C/W) under PCB pad-limited dissipation conditions.
Technical Context
This TVS diode operates symmetrically in both polarities due to its bidirectional construction, enabling transient suppression on AC-coupled or floating signal paths without polarity sensitivity. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), critical for protecting MOSFET gates and analog sensor inputs against ESD and inductive switching spikes.
The device is rated for repetitive 10/1000 μs surge events at 0.01 % duty cycle, with derating above 25 °C per Fig. 2. Junction temperature range spans −65 °C to +150 °C, and it meets J-STD-020 MSL Level 1 with peak reflow of 260 °C - confirming suitability for automated SMT assembly in high-reliability automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30 V - maximum continuous reverse voltage before clamping initiates; defines operating margin below breakdown in normal operation |
| VBR (Breakdown Voltage) | 33.3 V min / 37.1 V max at 1.0 mA - precise voltage threshold where avalanche conduction begins; tight tolerance supports predictable protection onset |
| VC (Clamping Voltage) | 41.4 V max at IPPM = 14.5 A - limits transient voltage seen by downstream circuitry; enables safe operation of 3.3 V/5 V logic and 30 V-rated MOSFETs |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity for 10/1000 μs waveform; sufficient for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges |
| ID (Reverse Leakage) | 1.0 μA max at VWM - negligible standby current; avoids loading of high-impedance sensor bias networks or reference dividers |
| TJ max. | +150 °C - enables use in under-hood automotive environments and enclosed industrial enclosures without active cooling |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs layout requirements for sustained power handling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated terminals, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current in either polarity; no marking on device - symmetric terminal function |
| Cathode | Transient current exit (bidirectional) | Completes low-impedance path during clamping; identical physical role as Anode due to bidirectional structure |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for engine control, ADAS sensor, and body electronics |
| 600 W peak pulse power (10/1000 μs) | Withstands repeated load-dump and inductive kick events common in 12 V/24 V vehicle electrical systems without degradation |
| Low clamping ratio (VC/VBR ≈ 1.24) | Minimizes overvoltage stress on protected ICs - critical for safeguarding precision ADC inputs and low-voltage microcontroller I/O |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard SMT reflow profiles up to 260 °C peak |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets automotive OEM environmental mandates and end-of-life recycling requirements without compromising surge performance |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and MEMS pressure/temperature sensors from battery load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to shunt transients before they reach sensitive analog front-end. Use Value: Prevents latch-up or gate oxide damage in 3.3 V sensor ASICs while maintaining signal integrity via sub-1 ns response and <1.0 μA leakage. |
Use Scenario: Safeguarding 4–20 mA current loop receivers and 0–10 V analog input stages in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage protector at terminal block entry point, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Clamps 1 kV/0.5 J transients to ≤41.4 V, ensuring downstream op-amps and ADCs remain within absolute maximum ratings during factory floor ESD events. |
| Consumer USB-C Port Protection | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-level transient protection on VBUS and CC lines of USB-C receptacles in portable docking stations subjected to hot-plug ESD. IC Role / Device Role / Timing Role: Fast-acting clamp parallel to port-side ESD diodes, absorbing residual energy after primary TVS or polymer fuse activation. Use Value: Delivers 600 W pulse handling without thermal runaway, enabling robust Class 4 IEC 61000-4-2 (15 kV air/8 kV contact) compliance in compact form factor. |
Use Scenario: Front-end surge suppression on telephone line interface circuits (e.g., SLIC, codec) in VoIP gateways and DSLAM line cards. IC Role / Device Role / Timing Role: First-stage protector across tip/ring lines prior to transformer coupling and DC feed circuitry. Use Value: Withstands repeated 10/700 μs telecom surges (IEC 60950-1) up to 4 kV while maintaining low capacitance (<100 pF) to avoid signal distortion on voice-band channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33CA | Same SMB package, 33 V VWM, 36.7–40.6 V VBR, 53.3 V VC at 11.3 A; lower PPPM (400 W) | Lower power rating limits use in high-energy automotive load dump; suitable for consumer-grade 100 V surge tests only | Select when cost sensitivity outweighs need for full 600 W IEC 61000-4-5 Level 4 compliance |
| SMCJ33CA | Higher-power SMC (DO-214AB) package, same 33 V VWM, 36.7–40.6 V VBR, 53.3 V VC at 30.5 A; PPPM = 1500 W | Larger footprint (7.11 mm × 6.22 mm) requires PCB redesign; better thermal performance (RθJA = 35 °C/W) for sustained surge duty | Choose when system-level surge testing exceeds 600 W or long-duration transients demand higher thermal mass |
Compared with SMAJ33CA and SMCJ33CA, P6SMB30CAHM3/H delivers optimal balance of AEC-Q101 qualification, 600 W surge capacity, and SMB footprint - making it the preferred choice for space-constrained automotive and industrial designs requiring certified reliability without layout change.
Availability
P6SMB30CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, and telecom line card protection requiring stable component supply, halogen-free compliance, and AEC-Q101 traceability.
Supply support for P6SMB30CAHM3/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 protection devices with emphasis on automotive, industrial, and computing applications.
The P6SMB Series targets high-reliability transient suppression in harsh environments, with design focus on AEC-Q101 qualification, low-profile SMT compatibility, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of P6SMB30CAHM3/H at its rated peak pulse current?
The P6SMB30CAHM3/H has a maximum clamping voltage (VC) of 41.4 V at its rated peak pulse current (IPPM) of 14.5 A, measured using the standardized 10/1000 μs double-exponential waveform. This value ensures protected circuits - such as 3.3 V or 5 V microcontrollers and analog front-ends - remain within safe operating limits during transient events. The P6SMB30CAHM3/H achieves this with minimal voltage overshoot due to its low incremental surge resistance and fast avalanche response.
Is P6SMB30CAHM3/H suitable for automotive applications?
Yes, P6SMB30CAHM3/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials (HM3 suffix), meeting stringent automotive reliability requirements. It is explicitly rated for under-hood and body electronics use, including engine control units, ADAS sensor interfaces, and infotainment power rails. The P6SMB30CAHM3/H withstands temperature cycling, high-temperature reverse bias, and mechanical shock per AEC-Q101 test protocols - confirmed in Vishay's qualification report for the HM3 variant.
How does the bidirectional configuration of P6SMB30CAHM3/H affect its circuit implementation?
The bidirectional configuration of P6SMB30CAHM3/H allows it to suppress transients of either polarity without regard to orientation - ideal for AC-coupled lines, differential buses (e.g., CAN, RS-485), or floating sensor outputs. Unlike unidirectional TVS diodes, P6SMB30CAHM3/H has no cathode marking and functions identically between its two terminals. This simplifies PCB layout, eliminates polarity-check steps during assembly, and ensures symmetrical protection on balanced signal paths where voltage reversal is inherent.
What is the thermal resistance of P6SMB30CAHM3/H, and how does it impact PCB layout?
P6SMB30CAHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - as defined in the Vishay datasheet. This value directly impacts PCB copper area requirements: reducing pad size increases RθJA and risks thermal runaway during repetitive surges. To maintain reliability, designers must adhere to the specified pad layout and avoid excessive trace length or narrow connections that impede heat dissipation from the P6SMB30CAHM3/H package.
Does P6SMB30CAHM3/H meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, P6SMB30CAHM3/H meets J-STD-020 MSL Level 1 with a maximum peak reflow temperature of 260 °C, meaning it can be placed directly onto PCBs without pre-baking and processed through standard lead-free reflow profiles. This MSL rating is verified per JEDEC standards and applies to the HM3 halogen-free construction. The P6SMB30CAHM3/H is fully compatible with automated SMT assembly lines used in high-volume automotive and industrial manufacturing.
P6SMB30CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
P6SMB30CAHM3/H FAQ
1.How can I place an order for P6SMB30CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CAHM3/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 P6SMB30CAHM3/H reliable?
The price and inventory of P6SMB30CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30CAHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB30CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CAHM3/H?
P6SMB30CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CAHM3/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 P6SMB30CAHM3/H?
For technical support, including P6SMB30CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CAHM3/H requirements.
6.How does Aetrix verify that P6SMB30CAHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB30CAHM3/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 P6SMB30CAHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB30CAHM3/H?
All P6SMB30CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CAHM3/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 P6SMB30CAHM3/H part is unused and in its original packaging.
Return procedure for P6SMB30CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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