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Vishay General Semiconductor - Diodes Division P6SMB120AHE3_B/H
- Part No.:
- P6SMB120AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120AHE3_B/H.pdf
- Description:
- 600W,120V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,056
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Product details
Overview
P6SMB120AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 120 V standoff voltage (VWM = 102 V), 165 V clamping voltage (VC) at 3.6 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It provides robust ESD and surge protection for DC power rails and signal lines in automotive and industrial control modules.
For engineers reviewing the P6SMB120AHE3_B/H datasheet, P6SMB120AHE3_B/H pinout, P6SMB120AHE3_B/H application, or P6SMB120AHE3_B/H equivalent, key selection criteria include its AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, designed to shunt transient energy away from sensitive downstream circuitry during inductive switching events or lightning-induced surges. Its glass-passivated junction ensures stable breakdown behavior and long-term reliability under repetitive stress.
The device delivers 600 W peak pulse power handling per 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling effective heat dissipation when mounted on 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 102 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 114–126 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 165 V at IPPM = 3.6 A - Peak voltage seen by protected circuit during worst-case 10/1000 μs surge. |
| PPPM (Peak Pulse Power) | 600 W - Energy-handling capacity for standardized surge waveforms; validates protection level per IEC 61000-4-5. |
| TJ max. | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with J-STD-020 MSL Level 1 reflow. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix), with cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected line; enables unidirectional clamping to ground or rail. |
| Cathode | Current exit point during reverse breakdown | Connected to higher-potential side (e.g., +12 V rail); defines clamping path to reference node. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 Level 3 (1 kV/2 kV surge) on 12 V/24 V systems without derating. |
| AEC-Q101 qualification (HE3_B suffix) | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity. |
| Glass passivated junction | Ensures stable VBR over lifetime and across temperature (-65 °C to +150 °C), critical for industrial deployments. |
| MSL Level 1 (260 °C peak) | Supports single-reflow assembly without moisture sensitivity concerns, reducing manufacturing risk. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 12 V supply inputs against load-dump transients and relay coil flyback in BCM microcontroller power rails. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between fuse output and LDO input to limit voltage excursions below IC absolute maximum rating. Use Value: Clamps 12 V rail to ≤165 V during 100 V/50 ms load dump, preventing LDO failure and ensuring MCU reset integrity. |
Use Scenario: Safeguarding 24 V digital input channels from field-wiring induced surges in factory automation PLCs. IC Role / Device Role / Timing Role: Front-end transient suppressor on optocoupler input side, absorbing energy before signal conditioning circuitry. Use Value: Limits transient voltage to <165 V at 3.6 A, preserving optocoupler CTR stability and eliminating false triggering. |
| Telecom Power Supply Monitoring | Consumer Appliance Motor Driver Board |
Use Scenario: Shielding voltage supervisor ICs and ADC inputs from coupling noise on 48 V telecom backup power bus. IC Role / Device Role / Timing Role: Standoff-clamp TVS on supervisor enable pin to prevent erroneous brownout detection during line surges. Use Value: Maintains VWM = 102 V margin above nominal 48 V, while clamping spikes to 165 V within 1 ns response time. |
Use Scenario: Suppressing commutation spikes from brushed DC motor back-EMF on microcontroller GPIO lines driving H-bridge enable signals. IC Role / Device Role / Timing Role: Localized TVS on MCU-side control trace to absorb inductive kickback before reaching gate driver logic. Use Value: Prevents latch-up in 3.3 V GPIO by clamping to 165 V referenced to ground, with no impact on PWM timing integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120A-E3/52 | Same VWM (102 V), VC = 165 V, but rated for 400 W PPPM and non-AEC-Q101 qualified. | Commercial-grade only; unsuitable for automotive production due to missing AEC-Q101 validation. | Select when cost sensitivity outweighs automotive qualification requirements and surge energy is ≤400 W. |
| 1.5SMC120A | Same VWM/VC specs, but in larger SMC (DO-214AB) package (7.11 mm × 6.22 mm); 600 W rating retained. | Larger footprint increases PCB area use; thermal resistance RθJA = 60 °C/W improves heat dissipation margin. | Choose when board layout allows larger package and enhanced thermal headroom is prioritized over space-constrained SMT. |
Compared with SMAJ120A-E3/52 and 1.5SMC120A, P6SMB120AHE3_B/H uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and full 600 W surge capability-making it optimal for space-limited automotive and industrial designs requiring validated reliability.
Availability
P6SMB120AHE3_B/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, telecom power monitoring circuits, and consumer appliance motor control boards requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB120AHE3_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 high-reliability and automotive-grade solutions.
The P6SMB Series is engineered specifically for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of P6SMB120AHE3_B/H at its rated peak pulse current?
The P6SMB120AHE3_B/H has a maximum clamping voltage (VC) of 165 V at its specified peak pulse current (IPPM) of 3.6 A, measured using the standard 10/1000 μs double-exponential waveform. This value is guaranteed across temperature and ensures protected circuitry remains within safe operating limits during surge events. The P6SMB120AHE3_B/H maintains this clamping performance with low incremental resistance, minimizing voltage overshoot beyond 165 V.
Is P6SMB120AHE3_B/H qualified for automotive applications?
Yes, P6SMB120AHE3_B/H is AEC-Q101 qualified, as confirmed by the "HE3_B" suffix and Vishay's documentation. It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias (HTRB), and ESD-to meet automotive reliability standards. The P6SMB120AHE3_B/H is approved for use in body control modules, infotainment power supplies, and ADAS sensor interfaces where zero-field-failure performance is required.
What does the "_B/H" suffix in P6SMB120AHE3_B/H indicate?
The "_B" denotes AEC-Q101 qualification for the P6SMB120AHE3_B/H series (applicable to models from P6SMB6.8A through P6SMB220A), while "/H" specifies packaging in 7-inch plastic tape and reel with 750 units per reel. This ordering code ensures traceable, automotive-grade material delivered in standard SMT-compatible format. The P6SMB120AHE3_B/H thus combines qualification, packaging, and RoHS/halogen-free compliance in one identifier.
How does the SMB package of P6SMB120AHE3_B/H compare thermally to larger packages like SMC?
The SMB (DO-214AA) package of P6SMB120AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, versus ~60 °C/W for the larger SMC (DO-214AB) package. While the SMB offers superior board-space efficiency, its thermal performance requires adherence to Vishay's recommended 5.0 mm × 5.0 mm copper pad layout per terminal to achieve rated 600 W pulse power. The P6SMB120AHE3_B/H remains viable for high-density layouts where thermal mass is managed via PCB copper area rather than package size.
Can P6SMB120AHE3_B/H be used in bidirectional configurations?
No, P6SMB120AHE3_B/H is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA") and cathode-band marking. Bidirectional operation requires the CA variant (e.g., P6SMB120CA), which lacks polarity marking and conducts symmetrically in both directions. Using P6SMB120AHE3_B/H in a bidirectional application would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. Always verify polarity alignment when deploying the P6SMB120AHE3_B/H.
P6SMB120AHE3_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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 3.6A
- 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)
P6SMB120AHE3_B/H FAQ
1.How can I place an order for P6SMB120AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120AHE3_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 P6SMB120AHE3_B/H reliable?
The price and inventory of P6SMB120AHE3_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 P6SMB120AHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB120AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120AHE3_B/H?
P6SMB120AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120AHE3_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 P6SMB120AHE3_B/H?
For technical support, including P6SMB120AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120AHE3_B/H requirements.
6.How does Aetrix verify that P6SMB120AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB120AHE3_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 P6SMB120AHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB120AHE3_B/H?
All P6SMB120AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120AHE3_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 P6SMB120AHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB120AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120AHE3_B/H Tags
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