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Vishay General Semiconductor - Diodes Division P6SMB75CAHM3/H
- Part No.:
- P6SMB75CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75CAHM3/H.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,093
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Product details
Overview
P6SMB75CAHM3/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 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 (IPPM), and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6SMB75CAHM3/H datasheet, P6SMB75CAHM3/H pinout, P6SMB75CAHM3/H application, or P6SMB75CAHM3/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, halogen-free RoHS compliance, and thermal resistance (RθJA = 100 °C/W) under PCB pad-limited cooling conditions.
Technical Context
This device operates as a voltage-clamped shunt protector: during transient overvoltage events exceeding its breakdown threshold, it avalanches to divert surge current away from downstream circuitry while maintaining clamped voltage below 103 V. Its bidirectional structure enables symmetric protection on AC-coupled or floating lines without polarity sensitivity.
Designed for automated SMT assembly, it uses glass-passivated junction technology and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. The SMB package meets UL 94 V-0 flammability rating and MSL level 1 (peak reflow ≤ 260 °C), supporting high-reliability production environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 75 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 82.9 V min - Voltage at which device enters avalanche conduction; ensures reliable triggering above normal operating range |
| VC (Clamping Voltage) | 103 V max at IPPM = 5.8 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capacity per 10/1000 μs waveform; supports IEC 61000-4-5 Level 3/4 transient immunity |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs derating above TA = 25 °C |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial ambient up to +125 °C with proper derating |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration with cathode/anode interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current sink (bidirectional) | One terminal of symmetrical PN junction; conducts surge current in either direction when voltage exceeds |VBR| |
| Cathode | Transient current sink (bidirectional) | Second terminal of symmetrical PN junction; functionally identical to anode in bidirectional TVS configuration |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled, differential, or floating signal lines without polarity constraints or external diode pairing |
| 600 W peak pulse power | Supports robust IEC 61000-4-5 surge immunity (4 kV line-earth, 2 kV line-line) with minimal PCB area overhead |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including high-temp bias life, temperature cycling, and mechanical shock testing |
| Halogen-free & RoHS-compliant | Meets global environmental regulations and soldering process compatibility requirements for lead-free reflow (MSL 1, 260 °C peak) |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (< 1 ns rise time), improving protection fidelity |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) connected to microcontroller ADC inputs in engine control units. IC Role / Device Role / Timing Role: Shunt TVS diode placed across sensor output and ground to clamp ESD and load-dump induced transients. Use Value: Prevents latch-up or damage to 12-bit ADC front-end while maintaining signal integrity below 103 V clamping threshold during 10/1000 μs surges. |
Use Scenario: Safeguarding CAN_H and CAN_L lines against coupling noise and battery dump events in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional TVS pair (one per line) referenced to ground, absorbing common-mode and differential transients. Use Value: Maintains CAN physical layer integrity by limiting voltage excursions to < ±103 V, preserving bit timing and error-free communication up to 1 Mbps. |
| Power Supply Input Stage Clamping | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side transient suppression on 24 V DC input rails feeding isolated DC-DC converters in industrial PLCs. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to absorb switching spikes and lightning-induced surges. Use Value: Limits input rail overvoltage to 103 V during 600 W surges, preventing overstress of upstream EMI filters and primary-side FETs. |
Use Scenario: Front-end protection of Ethernet PHY or RS-485 transceivers on telecom base station line cards exposed to outdoor surge environments. IC Role / Device Role / Timing Role: Bidirectional TVS on differential data pairs to suppress common-mode surges without distorting signal symmetry. Use Value: Ensures < 103 V clamping across data lines during IEC 61000-4-5 4 kV tests, avoiding receiver saturation and packet loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA-T | Same SMB package, 75 V VWM, but rated for 600 W with 8.3 ms sine-wave surge (not 10/1000 μs); higher IPPM (6.5 A), lower VC (103 V same) | Optimized for longer-duration surges (e.g., AC mains coupling); less effective for fast ESD pulses due to slower response | Select P6SMB75CAHM3/H for automotive AEC-Q101 compliance and standardized 10/1000 μs surge validation. |
| 1.5SMC75CA | Larger SMC (DO-214AB) package; same 75 V VWM and 103 V VC, but higher PPPM (1500 W); RθJA = 40 °C/W vs. 100 °C/W | Requires more PCB area; better thermal performance allows higher sustained surge duty cycles | Choose P6SMB75CAHM3/H where space-constrained layouts or AEC-Q101 qualification are mandatory. |
Compared with SMBJ75CA-T and 1.5SMC75CA, P6SMB75CAHM3/H delivers certified automotive reliability in a compact SMB footprint with validated 10/1000 μs surge response - making it optimal for space-limited, high-volume automotive and industrial designs requiring traceable qualification.
Availability
P6SMB75CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interfaces, power supply input clamping, and telecom line card surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB75CAHM3/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 reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-volume transient suppression in automotive, industrial, and telecom systems - engineered for AEC-Q101 qualification, halogen-free compliance, and consistent 600 W surge performance in the SMB footprint.
FAQ
What does the 'CA' suffix indicate in P6SMB75CAHM3/H?
The 'CA' suffix in P6SMB75CAHM3/H denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both polarities - essential for protecting AC-coupled, differential, or floating signal lines without polarity constraints. This differs from unidirectional variants (e.g., P6SMB75AHM3/H) that require correct cathode orientation relative to ground.
Is P6SMB75CAHM3/H qualified for automotive applications?
Yes, P6SMB75CAHM3/H is AEC-Q101 qualified, as confirmed by the 'HM3' suffix indicating halogen-free, RoHS-compliant construction with full automotive stress testing - including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling. This makes P6SMB75CAHM3/H suitable for under-hood and body-control module deployments.
What is the maximum clamping voltage of P6SMB75CAHM3/H and under what test condition?
The maximum clamping voltage of P6SMB75CAHM3/H is 103 V, measured at a peak pulse current (IPPM) of 5.8 A using the standardized 10/1000 μs double-exponential surge waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events, directly impacting downstream component survivability.
How does the SMB (DO-214AA) package of P6SMB75CAHM3/H compare thermally to larger packages like SMC?
P6SMB75CAHM3/H in SMB (DO-214AA) has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on standard 0.2" × 0.2" copper pads - significantly higher than SMC-packaged equivalents (e.g., 1.5SMC75CA at ~40 °C/W). This requires stricter derating above 25 °C ambient and limits repetitive surge duty cycle unless enhanced PCB copper is used.
Can P6SMB75CAHM3/H be used in place of a unidirectional TVS like P6SMB75AHM3/H?
No - P6SMB75CAHM3/H is bidirectional and lacks polarity marking, while P6SMB75AHM3/H is unidirectional with a cathode band. Substituting them without circuit review risks incorrect clamping behavior on DC-biased lines. Use P6SMB75CAHM3/H only where symmetrical protection is required; for DC rails referenced to ground, the unidirectional variant remains appropriate.
P6SMB75CAHM3/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):
- 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/H FAQ
1.How can I place an order for P6SMB75CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75CAHM3/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/H reliable?
The price and inventory of P6SMB75CAHM3/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/H is usually 5 days.
3.What payment methods are accepted for P6SMB75CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75CAHM3/H?
P6SMB75CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75CAHM3/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/H?
For technical support, including P6SMB75CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75CAHM3/H requirements.
6.How does Aetrix verify that P6SMB75CAHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB75CAHM3/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/H meets industry standards.
7.What is the process for return or replacement of P6SMB75CAHM3/H?
All P6SMB75CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75CAHM3/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/H part is unused and in its original packaging.
Return procedure for P6SMB75CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB75CAHM3/H Tags
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