My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB75CAHM3/I
- Part No.:
- P6SMB75CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB75CAHM3/I.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,580
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB75CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features 75 V standoff voltage (VWM), 82.9 V minimum breakdown voltage (VBR), 103 V maximum clamping voltage (VC) at 5.8 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB75CAHM3/I datasheet, P6SMB75CAHM3/I pinout, P6SMB75CAHM3/I application, or P6SMB75CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and thermal resistance (RθJA = 100 °C/W) for PCB-level transient suppression design.
Technical Context
The P6SMB75CAHM3/I operates as a bidirectional avalanche diode, symmetrically clamping both positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable breakdown behavior, low incremental surge resistance, and fast response time (<1 ns) to ESD and lightning-induced surges.
Designed for surface-mount automated assembly, it uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets JESD 201 Class 2 whisker resistance. The device is rated for -65 °C to +150 °C operating junction temperature and derates linearly above 25 °C ambient per Fig. 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 75 V - Maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown Voltage) | 71.3–78.8 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 103 V at IPPM = 5.8 A - Peak voltage seen by downstream ICs during 10/1000 μs surge; critical for MOSFET/IC survival margin. |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized 10/1000 μs surge without failure; validates robustness against IEC 61000-4-5 Level 4 threats. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs board layout cooling requirements. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; supports standard reflow without dry-pack or baking. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified (HM3 suffix). Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); cathode band not marked (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts surge current equally in either direction during clamping. |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA devices; no polarity marking required for layout or routing. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485) without polarity concerns. |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
| 600 W peak pulse power | Withstands repeated 10/1000 μs surges up to 5.8 A - exceeds IEC 61000-4-5 Ed. 3 coupling network requirements. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes let-through voltage stress on downstream components; improves system-level surge immunity margin. |
| MSL Level 1 & lead finish | Supports standard SMT reflow (peak 260 °C) without moisture-related defects; matte tin plating ensures solderability and whisker resistance. |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor inputs (e.g., temperature, pressure) in engine control units from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between sensor line and ground, absorbing transients before they reach MCU ADC or LIN transceiver. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V sensor interface ICs during 100 V/500 ms load dump events. | Use Scenario: Shielding PLC digital input terminals from inductive kickback when switching solenoids or relays. IC Role / Device Role / Timing Role: Standoff voltage (75 V) matches typical 24 V DC industrial supply rails; clamps spikes >100 V to safe levels for optocoupler or Schmitt trigger inputs. Use Value: Eliminates need for external RC snubbers or varistors, reducing BOM count and board space in DIN-rail mounted controllers. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding RS-485 transceivers in building automation gateways exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Placed across differential pair (A/B) and ground; symmetrical clamping preserves common-mode rejection during fast transients. Use Value: Maintains data integrity under 1 kV/0.5 μs surge tests while adding <0.5 pF capacitance - negligible impact on 10 Mbps signaling. | Use Scenario: Protecting microcontroller GPIOs driving brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Mounted at motor driver output stage; absorbs back-EMF spikes up to 103 V during PWM commutation. Use Value: Prevents false resets or flash corruption in 32-bit MCUs by limiting transient voltage to within absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ75CA | Same VWM (75 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy surges; less suitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select when board space is constrained and surge energy is ≤400 W; verify thermal performance with smaller pad area. |
| 1.5KE75CA | Same VWM (75 V), higher PPPM (1500 W), axial DO-201 package (through-hole, manual assembly) | Not SMT-compatible; requires wave soldering or hand-soldering; unsuitable for high-volume automated production. | Choose only for prototyping or legacy through-hole designs where 1500 W surge headroom justifies assembly complexity. |
Compared with SMAJ75CA and 1.5KE75CA, the P6SMB75CAHM3/I delivers optimal balance of 600 W surge capability, AEC-Q101 qualification, SMB SMT compatibility, and MSL Level 1 handling - making it the preferred choice for volume automotive and industrial PCB designs requiring reliability and process scalability.
Availability
P6SMB75CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, telecom RS-485 line guarding, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB75CAHM3/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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and industrial robustness.
The P6SMB Series targets high-reliability transient suppression in space-constrained SMT applications, with design focus on AEC-Q101 compliance, low clamping voltage, and repeatable surge performance for automotive and industrial end equipment.
FAQ
What does the "CA" suffix indicate in P6SMB75CAHM3/I?
The "CA" suffix denotes a bidirectional configuration - meaning the P6SMB75CAHM3/I clamps voltage transients equally in both polarities, with no anode/cathode distinction. This eliminates orientation concerns during PCB layout and makes it ideal for protecting AC signals, differential buses like CAN or RS-485, and ungrounded sensor lines where polarity reversal may occur.
Is P6SMB75CAHM3/I qualified for automotive use?
Yes, the P6SMB75CAHM3/I is AEC-Q101 qualified, as confirmed by its HM3 suffix (halogen-free, RoHS-compliant, and AEC-Q101 qualified). It is specifically intended for automotive applications including engine control units, body electronics, and ADAS sensor interfaces where reliability under temperature cycling, vibration, and electrical stress is mandatory.
What is the maximum clamping voltage of P6SMB75CAHM3/I and at what current is it specified?
The maximum clamping voltage (VC) of the P6SMB75CAHM3/I is 103 V, measured at a peak pulse current (IPPM) of 5.8 A using the standardized 10/1000 μs waveform. This value defines the highest voltage imposed on protected circuitry during a surge event and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
How does the SMB package of P6SMB75CAHM3/I compare to SMA or SMC in terms of power handling?
The SMB (DO-214AA) package used by P6SMB75CAHM3/I supports 600 W peak pulse power - higher than SMA (400 W) but lower than SMC (1500 W). Its thermal resistance (RθJA = 100 °C/W) is optimized for standard 0.2" × 0.2" copper pads, offering better power density than SMA while maintaining compact size and full SMT process compatibility unlike larger SMC variants.
Does P6SMB75CAHM3/I require special handling or baking before reflow soldering?
No, the P6SMB75CAHM3/I is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and can be subjected to standard lead-free reflow profiles (peak 260 °C) without pre-baking. Its moisture-sensitive level classification eliminates dry-pack requirements and simplifies manufacturing logistics for high-volume SMT lines.
P6SMB75CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
P6SMB75CAHM3/I FAQ
1.How can I place an order for P6SMB75CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB75CAHM3/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 P6SMB75CAHM3/I reliable?
The price and inventory of P6SMB75CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB75CAHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB75CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB75CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB75CAHM3/I?
P6SMB75CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB75CAHM3/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 P6SMB75CAHM3/I?
For technical support, including P6SMB75CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB75CAHM3/I requirements.
6.How does Aetrix verify that P6SMB75CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB75CAHM3/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 P6SMB75CAHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB75CAHM3/I?
All P6SMB75CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB75CAHM3/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 P6SMB75CAHM3/I part is unused and in its original packaging.
Return procedure for P6SMB75CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB75CAHM3/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 …
