My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB9.1A-E3/52
- Part No.:
- P6SMB9.1A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1A-E3/52.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,650
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB9.1A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 600 W peak pulse power (10/1000 μs), 7.78 V stand-off voltage (VWM), 13.4 V maximum clamping voltage (VC) at 44.8 A peak pulse current, and operates across -65 °C to +150 °C junction temperature - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P6SMB9.1A-E3/52 datasheet, P6SMB9.1A-E3/52 pinout, P6SMB9.1A-E3/52 application, or P6SMB9.1A-E3/52 equivalent, key selection criteria include verified clamping performance under 10/1000 μs surges, unidirectional polarity with cathode band marking, RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
The P6SMB9.1A-E3/52 employs a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its breakdown voltage is specified at 8.65–9.55 V (IT = 1.0 mA), ensuring precise overvoltage triggering before downstream IC damage occurs.
It delivers stable clamping at 13.4 V under 44.8 A peak pulse current (10/1000 μs), with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation without forced cooling when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.78 V - Maximum continuous reverse operating voltage before leakage exceeds 50 μA; defines safe DC/AC bias margin. |
| VBR (Breakdown) | 8.65–9.55 V @ 1.0 mA - Voltage at which device enters avalanche conduction; ensures predictable turn-on during transients. |
| VC (Clamping) | 13.4 V @ 44.8 A - Maximum voltage seen by protected circuit during 10/1000 μs surge; critical for IC-level ESD/surge immunity. |
| PPPM | 600 W - Peak pulse power handling capability with 0.01% duty cycle; supports repetitive surge events in industrial environments. |
| IPPM | 44.8 A - Peak pulse current survivability under standardized 10/1000 μs waveform; determines minimum trace width and fuse coordination. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive and high-ambient industrial applications. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with standard SMT reflow profiles. |
Pinout & Package
SMB (DO-214AA) package with matte tin-plated leads, cathode indicated by a band on the body. Terminals are solderable per J-STD-002 and JESD 22-B102; meets JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line ground or low-side reference. | Enables unidirectional clamping from cathode to anode; must be tied to lowest potential node in protected path. |
| Cathode | Current exit point in forward bias; marked with band; connected to protected line (e.g., VCC, signal). | Defines polarity-sensitive clamping direction; reverse-biased during normal operation; avalanches toward anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports high-energy lightning-induced surges in telecom and industrial control inputs without degradation. |
| 13.4 V clamping at 44.8 A | Protects 5 V and 3.3 V logic interfaces (e.g., MCU GPIO, CAN transceivers) by limiting transient overshoot below absolute maximum ratings. |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-baking requirement for PCB assembly; compatible with standard lead-free reflow profiles. |
| Glass passivated junction | Ensures long-term reliability and stable leakage (<50 μA at VWM) across temperature and humidity stress. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets global environmental compliance requirements for consumer, computing, and industrial end equipment. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Suppresses load-dump and inductive switching transients on 5 V analog sensor supply lines (e.g., pressure, temperature sensors) in engine control modules. IC Role / Device Role: Unidirectional TVS placed between sensor VCC and chassis ground, with cathode to VCC. Use Value: Clamps transients to ≤13.4 V, preventing damage to low-voltage LDOs and ADC front-ends while maintaining <50 μA leakage at 7.78 V nominal. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role: Unidirectional TVS connected between input terminal and common return, cathode to input line. Use Value: Withstands 600 W pulses without failure, enabling robust operation in factory-floor environments with frequent EMI exposure. |
| USB Port VBUS Line Protection | DC Power Rail Surge Suppression |
|
Use Scenario: Guards USB 2.0 VBUS (5 V) against hot-plug overshoot and electrostatic discharge in embedded host devices. IC Role / Device Role: TVS placed between VBUS and GND, cathode to VBUS, upstream of USB controller's internal protection. Use Value: Fast <1 ns response and 13.4 V clamping prevent latch-up in USB PHY ICs while meeting IEC 61000-4-2 Level 4 (15 kV air) system-level testing. |
Use Scenario: Protects 12 V DC power rails feeding motor drivers and communication modules from inductive kickback in HVAC and building automation systems. IC Role / Device Role: Unidirectional TVS installed across rail and ground, cathode to +12 V, sized for 600 W surge energy absorption. Use Value: Maintains clamping stability across -65 °C to +150 °C, supporting wide ambient operation without derating in enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | Same SMB package; VWM = 9.0 V, VC = 14.4 V @ 41.7 A; lower peak power (400 W). | Lower surge rating limits use to light-duty consumer electronics; not recommended for industrial 600 W surge standards. | Select only if system-level surge testing requires tighter VWM tolerance (±0.2 V vs. ±0.45 V) and 400 W suffices. |
| 1.5SMC9.1A | Higher-power SMC package (7.11 mm × 6.22 mm); same VWM/VBR/VC; PPPM = 1500 W. | Larger footprint and higher thermal mass suit high-reliability power supply inputs where board space permits. | Choose when protecting 12 V DC-DC converters subject to repeated 1.2/50 μs lightning surges per IEC 61000-4-5. |
Compared with SMAJ9.0A, P6SMB9.1A-E3/52 provides 50% higher surge power headroom and tighter VC spec; versus 1.5SMC9.1A, it offers identical electrical specs in a 30% smaller footprint but trades off ultimate energy handling for compactness.
Availability
P6SMB9.1A-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, USB VBUS protection, and DC power rail surge suppression requiring stable component supply, RoHS compliance, and MSL Level 1 assembly readiness.
Supply support for P6SMB9.1A-E3/52 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, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The P6SMB Series is engineered for surface-mount transient suppression in space-constrained, high-surge environments - targeting automotive, industrial, and telecom infrastructure where consistent clamping and automated assembly are mandatory.
FAQ
What is the maximum clamping voltage of the P6SMB9.1A-E3/52 under standard surge conditions?
The P6SMB9.1A-E3/52 has a maximum clamping voltage (VC) of 13.4 V when subjected to a 10/1000 μs waveform at 44.8 A peak pulse current. This value is measured per JEDEC standards and ensures downstream 5 V logic circuits remain within safe operating limits during transient events. The P6SMB9.1A-E3/52 maintains this clamping performance across its full operating temperature range.
Is the P6SMB9.1A-E3/52 suitable for automotive applications?
The P6SMB9.1A-E3/52 is RoHS-compliant and rated for operation from -65 °C to +150 °C, making it suitable for under-hood and cabin automotive subsystems. While the base P6SMB9.1A-E3/52 is commercial-grade, Vishay offers AEC-Q101 qualified variants (e.g., P6SMB9.1AHE3_B) with identical electrical specs. For production automotive use, confirm qualification status via Vishay's automotive ordering codes.
How does the P6SMB9.1A-E3/52 differ from bidirectional TVS diodes like P6SMB9.1CA?
The P6SMB9.1A-E3/52 is unidirectional and features a cathode band for polarity-sensitive placement, whereas P6SMB9.1CA is bidirectional with no polarity marking and symmetrical clamping in both directions. The P6SMB9.1A-E3/52 is intended for DC-biased lines (e.g., VCC, signal-to-ground), while P6SMB9.1CA suits AC-coupled or floating signal paths. Their VWM, VBR, and VC values differ accordingly.
What is the thermal resistance of the P6SMB9.1A-E3/52, and how does it affect PCB layout?
The P6SMB9.1A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain reliability under repetitive surges, PCB layout must replicate this pad area and avoid excessive trace length or narrow traces that increase thermal impedance. The P6SMB9.1A-E3/52 does not require heatsinking for single-event protection.
Does the P6SMB9.1A-E3/52 meet moisture sensitivity level requirements for lead-free reflow?
Yes, the P6SMB9.1A-E3/52 meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This means it can be stored indefinitely at ambient conditions and placed directly into lead-free reflow ovens without baking or dry-pack requirements - a key advantage for high-volume SMT manufacturing. The P6SMB9.1A-E3/52's matte tin plating also ensures solderability per J-STD-002.
P6SMB9.1A-E3/52 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 44.8A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB9.1A-E3/52 FAQ
1.How can I place an order for P6SMB9.1A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1A-E3/52 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 P6SMB9.1A-E3/52 reliable?
The price and inventory of P6SMB9.1A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB9.1A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB9.1A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1A-E3/52?
P6SMB9.1A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1A-E3/52 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 P6SMB9.1A-E3/52?
For technical support, including P6SMB9.1A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1A-E3/52 requirements.
6.How does Aetrix verify that P6SMB9.1A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1A-E3/52 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 P6SMB9.1A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB9.1A-E3/52?
All P6SMB9.1A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1A-E3/52, 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 P6SMB9.1A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB9.1A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB9.1A-E3/52 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 …
