My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB120CAHM3_A/H
- Part No.:
- P6SMB120CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120CAHM3_A/H.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,350
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB120CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 120 V standoff voltage (VWM), 137 V maximum clamping voltage at 4.4 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform. It is halogen-free, RoHS-compliant, AEC-Q101 qualified, and used in automotive sensor protection circuits.
For engineers reviewing the P6SMB120CAHM3_A/H datasheet, P6SMB120CAHM3_A/H pinout, P6SMB120CAHM3_A/H application, or P6SMB120CAHM3_A/H equivalent, key selection criteria include bidirectional clamping performance, AEC-Q101 qualification status, SMB (DO-214AA) package thermal resistance (RθJA = 100 °C/W), and compliance with automotive-grade reliability requirements under repetitive surge conditions.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with breakdown voltage (VBR) specified at 114–126 V (min/max) under 1 mA test current. Its clamping behavior is defined by VC = 137 V at IPPM = 4.4 A (10/1000 μs), ensuring predictable overvoltage limiting during ESD or load-switching events.
Thermally, it supports operation from −65 °C to +150 °C junction temperature, with derating applied above TA = 25 °C per Figure 2. The device uses glass-passivated junction technology and meets MSL Level 1 per J-STD-020, with peak reflow temperature up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 102 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (Breakdown) | 114–126 V @ IT = 1 mA - Confirmed voltage range where avalanche conduction begins |
| VC (Clamping) | 137 V @ IPPM = 4.4 A - Peak voltage seen across device during 10/1000 μs transient |
| PPPM | 600 W - Sustains 600 W peak pulse power without failure under standardized surge waveform |
| ID (Leakage) | 1.0 μA max @ VWM - Low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - Enables use in under-hood automotive environments with elevated ambient temperatures |
| RθJA | 100 °C/W - Thermal resistance defines required PCB copper area (0.2" × 0.2") for safe power dissipation |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. No polarity marking on bidirectional variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal (reverse bias) | One side of symmetrical junction; connects to protected line in bidirectional configuration |
| Cathode | Current exit terminal (reverse bias) | Other side of symmetrical junction; ties to same protected line as Anode in CA devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV) when properly mounted on 5 mm × 5 mm copper pads |
| Halogen-free & RoHS | Complies with automotive environmental standards and end-of-life material restrictions |
| MSL Level 1 | Allows standard SMT reflow without moisture sensitivity handling or baking requirements |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensor outputs from inductive switching transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair to clamp ±100 V spikes without DC bias disruption. Use Value: Prevents latch-up or damage to downstream analog front-end amplifiers while maintaining signal fidelity below 102 V operating range. |
Use Scenario: Safeguarding CAN_H/CAN_L lines against ESD and load dump in industrial PLC communication modules. IC Role / Device Role / Timing Role: Symmetric transient suppressor tied between CAN bus lines and ground, absorbing common-mode surges. Use Value: Maintains CAN FD data integrity up to 5 Mbps by limiting bus voltage excursions to ≤137 V during 10/1000 μs transients. |
| Telecom Power Input Stage | Consumer Appliance Motor Control |
Use Scenario: Clamping induced surges on 48 V telecom power inputs exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp ahead of DC-DC converter input, rated for repetitive 600 W pulses. Use Value: Extends system MTBF by preventing repeated stress degradation of upstream MOSFETs and gate drivers. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., washing machine drive circuits). IC Role / Device Role / Timing Role: Bidirectional shunt device across motor terminals to absorb bidirectional inductive kickback. Use Value: Eliminates need for separate unidirectional diodes while meeting IEC 61000-4-4 EFT immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ120CA | Same VWM/VBR/VC specs but lower PPPM (400 W), SMA package (higher RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without derating | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin with smaller pad area |
| 1.5KE120CA | Through-hole TO-204AE (DO-204AC), higher PPPM (1500 W), larger footprint, no AEC-Q101 qualification | Used in legacy industrial power supplies; not suitable for automated SMT assembly or automotive qualification | Choose only for through-hole prototyping or non-automotive applications requiring >600 W pulse handling |
Compared with P6SMB120CAHM3_A/H, SMAJ120CA offers reduced surge robustness and thermal performance in a smaller package, while 1.5KE120CA provides higher pulse power but lacks SMT compatibility and automotive qualification-making P6SMB120CAHM3_A/H the optimal choice for AEC-Q101-compliant, high-volume SMT designs.
Availability
P6SMB120CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, telecom power input stage, and consumer appliance motor control requiring stable component supply and full AEC-Q101 traceability.
Supply support for P6SMB120CAHM3_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 supplier of discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, automotive qualification, and application-specific performance.
The P6SMB Series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where bidirectional clamping, AEC-Q101 compliance, and consistent 600 W pulse handling are mandatory.
FAQ
What does the "CA" suffix indicate in P6SMB120CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration: P6SMB120CAHM3_A/H clamps voltage transients equally in both polarities, making it suitable for AC-coupled or floating signal lines such as CAN bus or differential sensor outputs. Unlike unidirectional "A" variants, it has no cathode marking and functions symmetrically across its two terminals.
Is P6SMB120CAHM3_A/H qualified for automotive use?
Yes, P6SMB120CAHM3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HM3", which designates halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge endurance required for under-hood and chassis-mounted automotive electronics.
What is the maximum clamping voltage of P6SMB120CAHM3_A/H and under what test condition?
The maximum clamping voltage (VC) of P6SMB120CAHM3_A/H is 137 V, measured at a peak pulse current (IPPM) of 4.4 A using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and reflects worst-case voltage seen by protected circuitry during surge events.
How does the SMB (DO-214AA) package of P6SMB120CAHM3_A/H affect thermal performance?
The SMB package delivers RθJA = 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal. This thermal resistance enables reliable 5.0 W steady-state power dissipation at TA = 50 °C and ensures safe operation during repetitive 600 W transient events-provided PCB layout adheres to Vishay's pad dimensions and copper weight guidelines.
Can P6SMB120CAHM3_A/H replace unidirectional TVS diodes in existing designs?
No-P6SMB120CAHM3_A/H is strictly bidirectional and cannot substitute for unidirectional TVS diodes (e.g., P6SMB120AHM3_A/H) in DC-biased circuits where polarity-sensitive clamping is required. Attempting replacement may result in unintended conduction during normal forward operation; redesign must verify symmetry requirements and absence of DC bias across the protected node.
P6SMB120CAHM3_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):
- 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)
P6SMB120CAHM3_A/H FAQ
1.How can I place an order for P6SMB120CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120CAHM3_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 P6SMB120CAHM3_A/H reliable?
The price and inventory of P6SMB120CAHM3_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 P6SMB120CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB120CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120CAHM3_A/H?
P6SMB120CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120CAHM3_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 P6SMB120CAHM3_A/H?
For technical support, including P6SMB120CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB120CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB120CAHM3_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 P6SMB120CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB120CAHM3_A/H?
All P6SMB120CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120CAHM3_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 P6SMB120CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB120CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120CAHM3_A/H Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
