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Vishay General Semiconductor - Diodes Division P6SMB110CAHM3_A/H
- Part No.:
- P6SMB110CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB110CAHM3_A/H.pdf
- Description:
- TVS DIODE 94VWM 152VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,557
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Product details
Overview
P6SMB110CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 110 V standoff voltage (VWM), 152 V clamping voltage (VC) at 3.9 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects sensitive signal lines and power rails in automotive sensor units, industrial I/O interfaces, and telecom surge-prone circuits.
For engineers reviewing the P6SMB110CAHM3_A/H datasheet, P6SMB110CAHM3_A/H pinout, P6SMB110CAHM3_A/H application, or P6SMB110CAHM3_A/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 convection conditions.
Technical Context
This device operates as a voltage-clamped shunt protector: during transients exceeding 110 V, it avalanches symmetrically in both directions to limit voltage to ≤152 V while diverting up to 3.9 A (10/1000 μs). Its glass-passivated junction ensures stable breakdown and low leakage (<1 μA at VWM).
Designed for automated SMT assembly, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), JESD201 Class 2 whisker resistance, and UL 94 V-0 flammability. The SMB package provides 5.0 mm × 5.0 mm copper pad thermal path per terminal, enabling 5.0 W steady-state dissipation at TA = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 110 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown) | 105–116 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering within ±5% tolerance. |
| VC (Clamping) | 152 V at IPPM = 3.9 A - Peak voltage seen by protected circuit during worst-case 600 W transient; limits stress on downstream ICs. |
| PPPM | 600 W (10/1000 μs) - Surge energy handling capacity; supports IEC 61000-4-5 Level 4 (4 kV) line-to-line testing with proper layout. |
| ID (Leakage) | <1 μA at 110 V - Negligible standby power loss and signal distortion in high-impedance sensor or data lines. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and sealed industrial enclosures without derating. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs board-level thermal design. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminals accept voltage transients equally in either direction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals function identically; bidirectional clamping requires no orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN, USB D+/D−) without polarity concerns. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; supports under-hood and ADAS sensor modules. |
| Halogen-free & RoHS-compliant | Meets IPC-1752A material declaration requirements and EU Directive 2011/65/EU; suitable for green manufacturing programs. |
| 600 W peak pulse power | Withstands repeated 10/1000 μs surges up to 3.9 A-sufficient for IEC 61000-4-5 open-circuit test levels in industrial control cabinets. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts), improving protection fidelity for sub-10 ns edge events. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting LIN/CAN bus nodes and MEMS pressure sensors from load-dump and ISO 7637-2 pulses in engine control units. IC Role / Device Role / Timing Role: Shunt TVS diode placed directly at connector entry point to clamp transients before reaching transceiver IC. Use Value: Clamps 110 V transients to ≤152 V within nanoseconds, preventing latch-up or gate oxide damage in 5 V tolerant transceivers. |
Use Scenario: Safeguarding differential RS-485 transceivers in factory automation PLCs exposed to motor switching noise and ground bounce. IC Role / Device Role / Timing Role: Bidirectional voltage limiter across A/B lines to suppress common-mode surges without disrupting DC bias. Use Value: Symmetric clamping preserves signal integrity on long twisted-pair runs while surviving 4 kV ESD and 2 kV surge per IEC 61000-4-4/5. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Front-end protection for DSL/VDSL line interface cards subjected to lightning-induced surges on copper pairs. IC Role / Device Role / Timing Role: Primary shunt suppressor before transformer coupling and line driver ICs. Use Value: 600 W rating handles multi-kV induced surges; 152 V clamping prevents overvoltage stress on 100 V-rated front-end components. |
Use Scenario: Secondary-side transient suppression on 12 V DC output rails of wall adapters powering IoT hubs and smart speakers. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) bidirectional clamp guarding against reverse-polarity misconnection and capacitive discharge spikes. Use Value: Prevents latch-up in USB-PD controllers and maintains <100 nA standby current budget in battery-backed devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ110CA | Same VWM (110 V) and VC (152 V), but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without parallel staging. | Select when board space is constrained and surge threat level is ≤2 kV. |
| 1.5KE110CA | Higher PPPM (1500 W), axial leaded DO-201 package; VWM = 110 V, VC = 177 V (higher clamping). | Requires through-hole assembly; less suitable for high-density SMT designs or automated production. | Choose for legacy through-hole systems or where higher surge margin justifies larger footprint and manual rework risk. |
Compared with P6SMB110CAHM3_A/H, SMAJ110CA trades 33% lower surge capacity for 30% smaller area, while 1.5KE110CA delivers 2.5× more power but sacrifices SMT compatibility and increases clamping voltage by 25 V-critical for 12 V rail protection.
Availability
P6SMB110CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 networks, and telecom line card designs requiring stable component supply with AEC-Q101 qualification and halogen-free compliance.
Supply support for P6SMB110CAHM3_A/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 application-specific performance.
The P6SMB Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and communications equipment-designed for robustness under repetitive surge stress and compatibility with automated SMT lines.
FAQ
What does the "CA" suffix indicate in P6SMB110CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration: P6SMB110CAHM3_A/H clamps voltage transients equally in both polarities, making it suitable for AC-coupled or floating signal lines such as RS-485, CAN, or Ethernet PHY interfaces. Unlike unidirectional variants (e.g., P6SMB110A), it has no cathode marking and requires no orientation during placement.
Is P6SMB110CAHM3_A/H qualified for automotive use?
Yes, P6SMB110CAHM3_A/H carries the HM3 suffix, indicating halogen-free, RoHS-compliant construction and full AEC-Q101 qualification-including stress tests for temperature cycling, high-temperature reverse bias, and ESD. It is approved for use in engine control, body electronics, and ADAS sensor modules per automotive reliability standards.
What is the maximum clamping voltage of P6SMB110CAHM3_A/H and under what test condition?
The maximum clamping voltage (VC) of P6SMB110CAHM3_A/H is 152 V, measured at a peak pulse current (IPPM) of 3.9 A using the standardized 10/1000 μs double-exponential waveform. This value represents the worst-case voltage imposed on protected circuitry during a 600 W transient event.
How does the SMB (DO-214AA) package of P6SMB110CAHM3_A/H affect thermal performance?
The SMB package of P6SMB110CAHM3_A/H delivers 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. This enables 5.0 W steady-state power dissipation at TA = 50 °C and supports reliable operation in thermally constrained automotive and industrial enclosures.
Can P6SMB110CAHM3_A/H replace P6SMB110A in an existing design?
No-P6SMB110CAHM3_A/H is bidirectional while P6SMB110A is unidirectional. Substituting them requires verifying circuit polarity: P6SMB110A has a cathode band and conducts forward current, whereas P6SMB110CAHM3_A/H has no polarity and clamps symmetrically. Using P6SMB110CAHM3_A/H in place of P6SMB110A may cause unintended conduction in DC-biased paths.
P6SMB110CAHM3_A/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:
- Obsolete
- 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_A/H FAQ
1.How can I place an order for P6SMB110CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB110CAHM3_A/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 P6SMB110CAHM3_A/H reliable?
The price and inventory of P6SMB110CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB110CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB110CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB110CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB110CAHM3_A/H?
P6SMB110CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB110CAHM3_A/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 P6SMB110CAHM3_A/H?
For technical support, including P6SMB110CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB110CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB110CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB110CAHM3_A/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 P6SMB110CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB110CAHM3_A/H?
All P6SMB110CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB110CAHM3_A/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 P6SMB110CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB110CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB110CAHM3_A/H Tags
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