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Vishay General Semiconductor - Diodes Division P6SMB7.5CAHM3/I
- Part No.:
- P6SMB7.5CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB7.5CAHM3/I.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,930
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Product details
Overview
P6SMB7.5CAHM3/I 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 7.5 V standoff voltage (VWM), 8.33 V minimum breakdown voltage (VBR), 11.3 V maximum clamping voltage (VC) at 53.1 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P6SMB7.5CAHM3/I datasheet, P6SMB7.5CAHM3/I pinout, P6SMB7.5CAHM3/I application, or P6SMB7.5CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, low clamping ratio (VC/VWM ≈ 1.5), and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the low incremental surge resistance supports effective energy diversion during ESD or lightning-induced surges.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) when mounted per recommended pad layout. Its MSL Level 1 rating (J-STD-020) and matte tin-plated leads ensure robust reflow solderability and long-term reliability in high-volume manufacturing environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.40 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 7.13–7.88 V at 10 mA - Confirmed avalanche initiation range; ensures predictable turn-on under transient stress. |
| VC (Clamping Voltage) | 11.3 V at 53.1 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines safe voltage headroom. |
| PPPM (Peak Pulse Power) | 600 W - Energy-handling capacity for standardized 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 3/4. |
| ID (Reverse Leakage) | 500 μA max at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance nodes. |
| TJ max | 150 °C - Enables operation in under-hood automotive or industrial enclosures without derating at full power. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with JEDEC J-STD-020 MSL Level 1. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode band omitted per bidirectional design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | Acts as current sink during positive or negative voltage excursion; symmetrical conduction enables AC line protection. |
| Cathode | Transient current exit (either direction) | Paired with Anode to form bidirectional clamping path; no polarity dependency simplifies PCB layout and BOM management. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of differential pairs, AC signals, or ungrounded buses without polarity constraints. |
| AEC-Q101 qualified (HM3) | Validated for automotive electronics including engine control units, body modules, and ADAS sensor interfaces. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports green manufacturing requirements. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV (open-circuit)/2 kA (short-circuit) in system-level testing. |
| Low clamping ratio (VC/VWM = 1.77) | Minimizes overvoltage stress on downstream components compared to higher-ratio TVS devices. |
Applications
| Automotive Sensor Signal Protection | Industrial CAN Bus Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure, temperature, and position sensors in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across sensor output and ground to limit transients to <12 V. Use Value: Prevents latch-up or damage to 3.3 V/5 V ADC inputs and op-amps while maintaining signal fidelity below VWM. |
Use Scenario: Safeguarding CAN_H and CAN_L lines in factory automation controllers against ESD and inductive switching noise. IC Role / Device Role / Timing Role: Differential TVS pair (one per line) suppressing common-mode and differential-mode transients up to ±25 kV contact ESD. Use Value: Maintains CAN bit timing integrity by limiting voltage overshoot to <12 V, avoiding bus arbitration errors or node reset. |
| Consumer USB Data Line Protection | Telecom DSL Line Surge Suppression |
|
Use Scenario: Shielding USB 2.0 D+ and D− lines in set-top boxes and smart displays from human-body-model ESD events. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed between data lines and chassis ground. Use Value: Clamps 8 kV contact ESD to <12 V without degrading 480 Mbps signal rise/fall times due to minimal parasitic capacitance. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers in DSLAMs and customer premises equipment subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression stage before transformer coupling and line driver ICs. Use Value: Absorbs up to 600 W of 10/1000 μs surge energy, preventing saturation of isolation transformers and protecting downstream PHY ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5CA | Same VWM (6.4 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA). | Limited to lower-energy transients; less suitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin with 130 °C TJ limit. |
| 1.5SMC7.5CA | Same VWM (6.4 V), higher PPPM (1500 W), larger SMC package (DO-214AB), higher VC (12.6 V). | Better for high-energy surges but increases board area and may exceed voltage tolerance of 3.3 V ICs. | Choose for industrial power-line protection where clamping voltage margin allows ≥12.6 V and PCB real estate permits SMC outline. |
Compared with SMAJ7.5CA and 1.5SMC7.5CA, P6SMB7.5CAHM3/I delivers optimal balance of 600 W surge handling, SMB footprint efficiency, AEC-Q101 qualification, and 11.3 V clamping - making it preferred for space-constrained automotive and industrial modules requiring validated reliability.
Availability
P6SMB7.5CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN networks, consumer USB ports, and telecom DSL line protection requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for P6SMB7.5CAHM3/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, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications systems - engineered for robustness under harsh thermal, mechanical, and electrical stress conditions.
FAQ
What is the clamping voltage of P6SMB7.5CAHM3/I at its rated peak pulse current?
The P6SMB7.5CAHM3/I has a maximum clamping voltage (VC) of 11.3 V at 53.1 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value is guaranteed across temperature and ensures protected circuits remain below critical overvoltage thresholds during surge events. The low VC directly supports reliable operation of 3.3 V and 5 V logic interfaces when used with appropriate series impedance.
Is P6SMB7.5CAHM3/I suitable for automotive applications?
Yes, P6SMB7.5CAHM3/I is AEC-Q101 qualified (denoted by the HM3 suffix) and specifically designed for automotive use. It meets stringent requirements for temperature cycling, humidity resistance, and surge robustness required in engine control, body electronics, and ADAS sensor modules. Its halogen-free, RoHS-compliant construction further aligns with automotive OEM material specifications.
How does the bidirectional configuration of P6SMB7.5CAHM3/I affect circuit protection design?
The bidirectional configuration of P6SMB7.5CAHM3/I eliminates polarity sensitivity, allowing placement across any two points subject to differential or AC-coupled transients - such as CAN_H/CAN_L, RS-485 A/B, or USB D+/D−. Unlike unidirectional TVS diodes, P6SMB7.5CAHM3/I provides symmetrical clamping in both voltage polarities without requiring ground reference or orientation checks during layout.
What is the thermal resistance of P6SMB7.5CAHM3/I, and how does it impact PCB layout?
P6SMB7.5CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under repetitive surge conditions, PCB layout must replicate this pad area and avoid excessive trace length or narrow routing that increases thermal impedance.
Does P6SMB7.5CAHM3/I require derating at elevated ambient temperatures?
Yes, P6SMB7.5CAHM3/I requires derating above TA = 25 °C, as shown in Figure 2 of the datasheet. At 85 °C ambient, its peak pulse power capability reduces to approximately 420 W (70 % of 600 W), and at 125 °C, it drops to ~240 W (40 %). Designers must apply these derating curves when specifying surge immunity for high-temperature environments like under-hood automotive or enclosed industrial drives.
P6SMB7.5CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 53.1A
- 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)
P6SMB7.5CAHM3/I FAQ
1.How can I place an order for P6SMB7.5CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB7.5CAHM3/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 P6SMB7.5CAHM3/I reliable?
The price and inventory of P6SMB7.5CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB7.5CAHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB7.5CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB7.5CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB7.5CAHM3/I?
P6SMB7.5CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB7.5CAHM3/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 P6SMB7.5CAHM3/I?
For technical support, including P6SMB7.5CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB7.5CAHM3/I requirements.
6.How does Aetrix verify that P6SMB7.5CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB7.5CAHM3/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 P6SMB7.5CAHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB7.5CAHM3/I?
All P6SMB7.5CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB7.5CAHM3/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 P6SMB7.5CAHM3/I part is unused and in its original packaging.
Return procedure for P6SMB7.5CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB7.5CAHM3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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