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Vishay General Semiconductor - Diodes Division P6SMB75CAHM3_B/H
- Part No.:
- P6SMB75CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75CAHM3_B/H.pdf
- Description:
- 600W,75V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,372
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Product details
Overview
P6SMB75CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 75 V standoff voltage (VWM), 82.9 V minimum breakdown voltage (VBR), 103 V maximum clamping voltage at 5.8 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6SMB75CAHM3_B/H datasheet, P6SMB75CAHM3_B/H pinout, P6SMB75CAHM3_B/H application, or P6SMB75CAHM3_B/H equivalent, this device is selected for robust ESD and surge protection where bidirectional clamping, AEC-Q101 qualification, and low-profile SMB packaging are required in space-constrained PCB layouts.
Technical Context
The P6SMB75CAHM3_B/H operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 64.1 V), while its MSL Level 1 rating supports lead-free reflow up to 260 °C.
It delivers 600 W peak pulse power handling under standardized 10/1000 μs surge conditions, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation up to 150 °C junction temperature in properly laid-out PCBs with 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 64.1 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working range. |
| VBR (Breakdown Voltage) | 71.3–78.8 V at 1 mA - Voltage at which avalanche conduction initiates; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 103 V at 5.8 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Maximum transient energy absorption capability; validates suitability for IEC 61000-4-5 Level 3/4 surge testing. |
| ID (Reverse Leakage) | <1.0 μA at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max. | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and industrial environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); MSL Level 1, reflow-compatible up to 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bidirectional) | Non-polarized terminals | No cathode band marking; symmetrical conduction enables placement without orientation check - simplifies automated assembly. |
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) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive subsystems. |
| AEC-Q101 qualified (HM3_B suffix) | Validated reliability for automotive powertrain, body electronics, and ADAS sensor interfaces. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., inductive switch-off). |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT processes without pre-baking or special handling. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed at connector interface to shunt surge energy before it reaches signal conditioning ICs. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V microcontrollers and analog front-ends during vehicle-level EMC testing. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across 24 V DC input terminals to limit voltage excursions during switching events. Use Value: Eliminates false triggering and extends service life of optocouplers and level-shifting buffers in factory automation equipment. |
| Consumer Power Adapter Protection | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters and AC/DC SMPS outputs. IC Role / Device Role / Timing Role: Clamping device placed between output rail and ground to absorb transformer leakage spikes and rectifier reverse recovery transients. Use Value: Maintains compliance with UL 62368-1 transient withstand requirements while avoiding secondary-side regulator shutdown. |
Use Scenario: Surge protection for Ethernet PHY interfaces and RS-485 transceivers in network edge devices. IC Role / Device Role / Timing Role: Bidirectional TVS on differential pairs to suppress common-mode surges induced by lightning or EFT coupling. Use Value: Preserves signal integrity below 100 MHz and prevents PHY latch-up during IEC 61000-4-4/5 testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75CA-E3/5B | Same VWM (64.1 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Lower surge margin; suitable only for light-duty consumer applications with derated layout. | Select when board space is critical and surge threat level is ≤ IEC 61000-4-5 Level 2. |
| 1.5SMC75CA | Same VWM and clamping, but SMC package (larger, 7.1 mm × 6.2 mm), higher thermal mass, RθJA = 60 °C/W | Better thermal performance for high-repetition surges; requires more PCB area. | Choose for industrial power supplies needing sustained surge resilience and easier manual rework. |
Compared with SMAJ75CA-E3/5B, P6SMB75CAHM3_B/H offers 50 % higher surge power headroom and superior thermal dissipation in the same height profile; versus 1.5SMC75CA, it saves >40 % board area while maintaining AEC-Q101 qualification - making it optimal for automotive and compact industrial designs.
Availability
P6SMB75CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 validation, and consistent SMB package form factor.
Supply support for P6SMB75CAHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P6SMB Series targets cost-sensitive yet mission-critical transient suppression in automotive, industrial, and communications infrastructure - delivering AEC-Q101-compliant TVS performance in compact SMB packaging.
FAQ
What does the "CA" suffix indicate in P6SMB75CAHM3_B/H?
The "CA" suffix denotes a bidirectional configuration: the P6SMB75CAHM3_B/H conducts and clamps symmetrically in both polarities, eliminating the need for polarity-aware placement on PCBs. This differs from unidirectional variants (e.g., P6SMB75AHM3_B/H) that require correct anode/cathode orientation. The CA version is ideal for AC-coupled lines, differential buses, and floating grounds.
Is P6SMB75CAHM3_B/H suitable for IEC 61000-4-5 surge testing?
Yes, P6SMB75CAHM3_B/H is rated for 600 W peak pulse power with a 10/1000 μs waveform - meeting the energy requirement for IEC 61000-4-5 Level 3 (1 kV open-circuit, 12 Ω source impedance) and Level 4 (2 kV) when applied with proper PCB layout (e.g., 5.0 mm × 5.0 mm copper pads). Its 103 V clamping voltage ensures protected ICs remain within safe operating limits.
How does the HM3_B suffix differ from standard M3 or E3 versions?
The HM3_B suffix indicates halogen-free, RoHS-compliant construction plus AEC-Q101 qualification - verified for automotive use under temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing. Standard M3 parts lack AEC-Q101 validation, and E3 parts are commercial-grade only; HM3_B ensures long-term reliability in under-hood and chassis-mounted applications.
What is the maximum operating temperature for P6SMB75CAHM3_B/H?
The P6SMB75CAHM3_B/H has a maximum junction temperature (TJ max.) of +150 °C, validated per AEC-Q101. At ambient temperatures up to +105 °C, it sustains full 600 W surge capability when mounted on recommended 5.0 mm × 5.0 mm copper pads. Derating applies above 25 °C ambient per Figure 2 in the datasheet, with 50 % power capability retained at TJ = 125 °C.
Can P6SMB75CAHM3_B/H replace P6SMB75A in existing designs?
No - P6SMB75CAHM3_B/H is bidirectional, whereas P6SMB75A is unidirectional. Substituting them without circuit review risks improper clamping during negative transients or forward conduction in DC-biased paths. If replacing P6SMB75A, verify that the application truly requires bidirectional behavior and confirm no DC bias exceeds the device's 64.1 V standoff rating in either polarity.
P6SMB75CAHM3_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):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
P6SMB75CAHM3_B/H FAQ
1.How can I place an order for P6SMB75CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75CAHM3_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 P6SMB75CAHM3_B/H reliable?
The price and inventory of P6SMB75CAHM3_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 P6SMB75CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB75CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75CAHM3_B/H?
P6SMB75CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75CAHM3_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 P6SMB75CAHM3_B/H?
For technical support, including P6SMB75CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB75CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB75CAHM3_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 P6SMB75CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB75CAHM3_B/H?
All P6SMB75CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75CAHM3_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 P6SMB75CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB75CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB75CAHM3_B/H Tags
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