My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB120CAHM3_A/I
- Part No.:
- P6SMB120CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB120CAHM3_A/I.pdf
- Description:
- TVS DIODE 102VWM 165VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,125
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB120CAHM3_A/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 120 V standoff voltage (VWM), 137 V clamping voltage (VC) at 3.6 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 P6SMB120CAHM3_A/I datasheet, P6SMB120CAHM3_A/I pinout, P6SMB120CAHM3_A/I application, or P6SMB120CAHM3_A/I equivalent, this device delivers AEC-Q101 qualification, MSL Level 1 moisture sensitivity, halogen-free RoHS compliance, and verified clamping performance under repetitive surge conditions - critical for high-reliability board-level ESD and lightning transient suppression.
Technical Context
The P6SMB120CAHM3_A/I operates as a bidirectional avalanche diode, symmetrically clamping voltage transients above ±137 V in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at 102 V), while its SMB (DO-214AA) package enables automated placement and meets UL 94 V-0 flammability rating.
Thermally, it sustains 150 °C maximum junction temperature with 100 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads. The device is rated for 0.01% duty cycle repetitive surges and supports 8.3 ms half-sine forward surge up to 100 A - though bidirectional configuration limits IFSM applicability to unidirectional variants only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 102 V - maximum continuous reverse voltage before conduction begins; defines operating margin below clamping threshold |
| VBR (Breakdown) | 114–126 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on during transients |
| VC (Clamping) | 137 V at IPPM = 3.6 A - peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream ICs |
| PPPM | 600 W - peak transient energy absorption capacity; validates suitability for IEC 61000-4-5 Level 3/4 surge testing |
| ID (Leakage) | ≤1.0 μA at 102 V - minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJ max. | 150 °C - enables operation in under-hood automotive or enclosed industrial enclosures without derating |
| Package | SMB (DO-214AA) - 3.94 mm × 2.20 mm footprint; compatible with standard SMT reflow profiles and J-STD-020 MSL Level 1 |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction with matte tin-plated leads solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical terminals; conducts in either direction when voltage exceeds ±137 V - eliminates orientation concerns during placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces - supports PPAP documentation |
| Halogen-free & RoHS-compliant | Meets JEDEC J-STD-20E and EU Directive 2011/65/EU - enables use in green electronics manufacturing and export-sensitive markets |
| 600 W peak pulse power | Withstands 10/1000 μs surges up to 3.6 A - sufficient for IEC 61000-4-5 combination wave (1.2/50 μs + 8/20 μs) testing at system level |
| Low clamping ratio (VC/VBR ≈ 1.09) | Minimizes overvoltage overshoot during fast transients - preserves timing margins in high-speed digital interfaces |
| MSL Level 1 | No floor life limitation; safe for standard SMT assembly without baking - reduces production overhead and handling risk |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Module |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and ISO 7637-2 pulses in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or supply rail to limit transient excursions. Use Value: Maintains signal integrity during 12 V system load dump events (up to 120 V, 400 ms) without latch-up or degradation - validated per AEC-Q101 stress tests. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input terminal block, upstream of optocoupler or Schmitt trigger interface. Use Value: Limits transient voltage to ≤137 V within 1 ns response time - prevents false triggering and extends optocoupler lifetime under repeated 1 kV/μs edge rates. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Secondary protection on AC/DC front-end of base station remote radio units subjected to lightning-induced surges on -48 V DC distribution lines. IC Role / Device Role / Timing Role: Coordination partner with GDT or MOV in multi-stage protection network - handles residual fast-rising energy after coarse clamping. Use Value: Clamps residual 10/1000 μs surges to 137 V at 3.6 A - ensures downstream DC/DC converter ICs remain within absolute maximum ratings during Telcordia GR-1089-CORE Level 3 testing. |
Use Scenario: Input-stage transient suppression on universal-input (90–264 VAC) SMPS used in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Fast-response TVS across bulk capacitor terminals to absorb switching noise and EFT bursts coupled through rectifier stage. Use Value: Provides <1.0 μA leakage at 102 V - avoids measurable standby power increase while delivering 600 W surge immunity compliant with IEC 61000-4-4 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA-T | Same VWM (102 V), VC (137 V), and PPPM (600 W); differs in packaging (tape/reel quantity code) and manufacturer (Bourns vs. Vishay) | Identical electrical specs and SMB footprint; not AEC-Q101 qualified in standard grade - requires verification for automotive use | Select SMBJ120CA-T only for commercial-grade designs where AEC-Q101 is not mandated |
| 1.5SMC120CA | Higher package thermal resistance (RθJA = 125 °C/W vs. 100 °C/W); same VWM/VC but lower surge current margin due to larger SMC footprint limitations in high-density layouts | SMC (DO-214AB) package occupies ~30% more PCB area; less suitable for space-constrained telecom or automotive modules | Choose 1.5SMC120CA only when higher single-pulse energy handling (1500 W) is required and layout space permits |
Compared with SMBJ120CA-T and 1.5SMC120CA, the P6SMB120CAHM3_A/I uniquely combines AEC-Q101 qualification, halogen-free compliance, and optimized SMB footprint for high-volume automotive and industrial SMT lines - offering superior supply chain traceability and thermal performance in dense layouts.
Availability
P6SMB120CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card surge protection requiring stable component supply, long-term lifecycle support, and full compliance documentation.
Supply support for P6SMB120CAHM3_A/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 and application-specific performance.
The P6SMB Series targets board-level transient protection in automotive, industrial, and telecom systems - engineered for high surge robustness, automated manufacturability, and compliance with stringent environmental and qualification standards.
FAQ
What is the clamping voltage of P6SMB120CAHM3_A/I at its rated peak pulse current?
The P6SMB120CAHM3_A/I has a maximum clamping voltage (VC) of 137 V at a peak pulse current (IPPM) of 3.6 A with a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuitry during standardized surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is P6SMB120CAHM3_A/I suitable for automotive applications?
Yes, P6SMB120CAHM3_A/I is AEC-Q101 qualified (indicated by the "HM3" suffix and "_A/I" reel code), making it suitable for automotive applications including body electronics, ADAS sensors, and infotainment power rails. It undergoes stress testing for temperature cycling, humidity, and mechanical shock per AEC-Q101 requirements - confirmed in Vishay's qualification reports for the P6SMB-HM3 family.
What does the "CA" suffix mean in P6SMB120CAHM3_A/I?
The "CA" suffix in P6SMB120CAHM3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB120A), the CA version has no cathode band marking and functions identically regardless of polarity across its two terminals.
What is the maximum operating junction temperature for P6SMB120CAHM3_A/I?
The P6SMB120CAHM3_A/I has a maximum operating junction temperature (TJ max.) of +150 °C, as specified in the "Maximum Ratings" table of Vishay document 88370. This allows reliable operation in under-hood automotive environments or sealed industrial enclosures without thermal derating - provided PCB copper pad layout follows the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) minimum per terminal.
How does the HM3 suffix differ from E3 or M3 in the P6SMB series?
The "HM3" suffix in P6SMB120CAHM3_A/I indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from "E3" (RoHS-compliant commercial grade) and "M3" (halogen-free RoHS-compliant commercial grade). Only HM3 and HE3 variants carry automotive qualification; HM3 further guarantees halogen-free materials per IEC 61249-2-21.
P6SMB120CAHM3_A/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:
- 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/I FAQ
1.How can I place an order for P6SMB120CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB120CAHM3_A/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 P6SMB120CAHM3_A/I reliable?
The price and inventory of P6SMB120CAHM3_A/I 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/I is usually 5 days.
3.What payment methods are accepted for P6SMB120CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB120CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB120CAHM3_A/I?
P6SMB120CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB120CAHM3_A/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 P6SMB120CAHM3_A/I?
For technical support, including P6SMB120CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB120CAHM3_A/I requirements.
6.How does Aetrix verify that P6SMB120CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB120CAHM3_A/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 P6SMB120CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB120CAHM3_A/I?
All P6SMB120CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB120CAHM3_A/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 P6SMB120CAHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB120CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB120CAHM3_A/I 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 …
