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Vishay General Semiconductor - Diodes Division P6SMB110CAHM3_B/I
- Part No.:
- P6SMB110CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB110CAHM3_B/I.pdf
- Description:
- 600W,110V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,707
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Product details
Overview
P6SMB110CAHM3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 110 V standoff voltage (VWM), 125 V clamping voltage (VC) at 3.9 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line cards.
For engineers reviewing the P6SMB110CAHM3_B/I datasheet, P6SMB110CAHM3_B/I pinout, P6SMB110CAHM3_B/I application, or P6SMB110CAHM3_B/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal performance, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This device operates as a voltage-clamped crowbar during transient events: when reverse voltage exceeds its breakdown threshold (105–116 V), it switches from high-impedance to low-impedance state within <1 ps, diverting surge current away from protected circuitry. Its bidirectional architecture ensures identical clamping behavior across both polarities without polarity marking.
Thermally, it uses a glass-passivated junction mounted in an SMB (DO-214AA) package with RθJA = 100 °C/W and RθJL = 20 °C/W, enabling reliable operation up to TJ = +150 °C. The HM3 suffix confirms halogen-free, RoHS-compliant construction with AEC-Q101 qualification and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 94.0 V - maximum continuous reverse operating voltage before conduction begins |
| VBR (Breakdown) | 105–116 V at 1 mA - precise voltage threshold where avalanche conduction initiates |
| VC (Clamping) | 152 V at IPPM = 3.9 A - peak voltage seen by protected circuit during 10/1000 μs surge |
| PPPM | 600 W - surge energy handling capacity per single 10/1000 μs pulse under defined test conditions |
| IR (Leakage) | 1.0 μA max at VWM - negligible standby power loss and minimal interference on sensitive analog/sensor lines |
| TJ max | +150 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
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); matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common node in bidirectional operation | Connected to line being protected; forms symmetrical clamping path with cathode |
| Cathode | Current exit terminal in forward bias; common node in bidirectional operation | Also connected to line being protected; enables equal clamping for ± transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC characteristics for both polarities - eliminates need for polarity-aware layout or orientation verification |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-earth) surges without degradation |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and body electronics |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
| MSL Level 1 moisture sensitivity | Compatible with standard SMT reflow profiles up to 260 °C peak - no baking required prior to assembly |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Module |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to clamp ±100 V transients before reaching signal conditioning ICs. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs while maintaining signal integrity due to sub-1 pF junction capacitance at low bias. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each isolated input channel, coordinated with optocoupler input stage. Use Value: Enables >100,000 surge cycles at rated PPPM without parameter drift, supporting long-life industrial deployment. |
| Telecom Line Card Protection | Consumer Power Adapter EMI Filtering |
Use Scenario: Secondary-level surge suppression on Ethernet PHY power rails and data lines in enterprise switch line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response shunt device downstream of primary GDT/MOV stages, absorbing residual energy below 152 V clamping level. Use Value: Reduces system-level failure rate by limiting transient voltage excursion to safe margins for 100BASE-TX magnetics and PHY ICs. |
Use Scenario: Input-stage transient suppression in universal AC/DC adapters to meet IEC 61000-4-5 and UL 62368-1 surge immunity requirements. IC Role / Device Role / Timing Role: Final-stage clamping element after X/Y capacitors and common-mode chokes, protecting bridge rectifier and controller IC. Use Value: Halogen-free HM3 construction supports global environmental compliance without sacrificing surge withstand capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Same VWM (94 V), VC (152 V), and PPPM (600 W); differs in packaging (standard M3 vs. HM3 halogen-free) | Lacks AEC-Q101 qualification and JESD201 Class 2 whisker resistance | Select when halogen-free requirement is not mandated and automotive qualification is unnecessary |
| 1.5KE110CA | Higher VWM (94 V) but larger DO-201 package; same bidirectional clamping, lower thermal resistance (RθJA = 65 °C/W) | Not surface-mount; requires through-hole assembly and larger PCB area | Choose only if higher power derating margin is needed and SMT is not required |
Compared with SMBJ110CA and 1.5KE110CA, P6SMB110CAHM3_B/I uniquely combines AEC-Q101 qualification, halogen-free construction, and SMB footprint - making it the sole option for space-constrained, automotive-grade, environmentally compliant designs requiring bidirectional TVS protection.
Availability
P6SMB110CAHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor systems, industrial PLCs, telecom infrastructure equipment, and consumer power adapters requiring stable component supply across multi-year production cycles.
Supply support for P6SMB110CAHM3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom applications - engineered for fast response, repeatable clamping, and long-term stability under repetitive surge stress.
FAQ
What is the clamping voltage of P6SMB110CAHM3_B/I at its rated peak pulse current?
The P6SMB110CAHM3_B/I has a maximum clamping voltage (VC) of 152 V when subjected to its rated peak pulse current (IPPM) of 3.9 A using the standardized 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during surge events. The low clamping ratio (VC/VWM ≈ 1.62) reflects efficient energy diversion without excessive overvoltage stress on downstream ICs.
Is P6SMB110CAHM3_B/I suitable for automotive applications?
Yes, P6SMB110CAHM3_B/I is AEC-Q101 qualified, as confirmed by the "HM3_B" suffix and Vishay documentation. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD) per AEC-Q101 Rev D. Its operational junction temperature range of –65 °C to +150 °C and halogen-free construction make it appropriate for under-hood and body-control module deployments where reliability and regulatory compliance are mandatory.
How does the bidirectional design of P6SMB110CAHM3_B/I affect its PCB layout?
The bidirectional design of P6SMB110CAHM3_B/I eliminates polarity constraints: there is no cathode band marking, and both terminals function identically regardless of voltage polarity. This allows placement in series with any signal or power line without orientation verification, simplifying automated assembly and reducing risk of misplacement. Layout requires symmetric 0.2" × 0.2" copper pads per terminal (per datasheet recommendation) to ensure optimal thermal dissipation and surge current handling.
What is the meaning of the "HM3_B/I" suffix in P6SMB110CAHM3_B/I?
In P6SMB110CAHM3_B/I, "HM3" denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance; "B" indicates AEC-Q101 qualification for the 6.8 V to 220 V voltage range; and "I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This full suffix confirms compliance with automotive, environmental, and manufacturing requirements - distinct from commercial-grade "M3" or non-qualified "E3" variants.
Can P6SMB110CAHM3_B/I replace unidirectional TVS diodes in existing designs?
No - P6SMB110CAHM3_B/I is strictly bidirectional and lacks polarity marking, so it cannot substitute for unidirectional TVS diodes (e.g., P6SMB110A) in circuits relying on DC blocking or forward conduction paths. Attempting replacement may cause unintended conduction during normal operation. For unidirectional applications, select the "A"-suffixed variant; for bidirectional protection where polarity independence is required, P6SMB110CAHM3_B/I is the correct choice.
P6SMB110CAHM3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 3.9A
- 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)
P6SMB110CAHM3_B/I FAQ
1.How can I place an order for P6SMB110CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB110CAHM3_B/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 P6SMB110CAHM3_B/I reliable?
The price and inventory of P6SMB110CAHM3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB110CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB110CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB110CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB110CAHM3_B/I?
P6SMB110CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB110CAHM3_B/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 P6SMB110CAHM3_B/I?
For technical support, including P6SMB110CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB110CAHM3_B/I requirements.
6.How does Aetrix verify that P6SMB110CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB110CAHM3_B/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 P6SMB110CAHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB110CAHM3_B/I?
All P6SMB110CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB110CAHM3_B/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 P6SMB110CAHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB110CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB110CAHM3_B/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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