My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB39CA-M3/52
;;2.jpg)
- Part No.:
- P6SMB39CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB39CA-M3/52.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,532
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB39CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, rated for 39 V standoff voltage (VWM), 43.7 V minimum breakdown voltage (VBR), and 53.9 V maximum clamping voltage (VC) at 11.1 A peak pulse current (IPPM), designed to protect signal lines and power rails in automotive and industrial electronics against ESD and lightning-induced transients.
For engineers reviewing the P6SMB39CA-M3/52 datasheet, P6SMB39CA-M3/52 pinout, P6SMB39CA-M3/52 application, or P6SMB39CA-M3/52 equivalent, this device delivers verified 600 W peak pulse power handling with 10/1000 μs waveform, low incremental surge resistance, and halogen-free RoHS-compliant construction-key selection criteria for robust overvoltage protection in space-constrained PCB layouts.
Technical Context
The P6SMB39CA-M3/52 operates bidirectionally with symmetrical clamping characteristics in both polarities, enabling single-device protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and long-term reliability under repetitive surge stress.
Thermal performance is defined by RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to TJ = +150 °C when mounted on 5.0 mm × 5.0 mm copper pads per terminal. It meets MSL Level 1 per J-STD-020 with peak reflow temperature of 260 °C, making it compatible with standard SMT assembly processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 33.3 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 37.1–41.0 V at 1 mA - Confirmed voltage range where device transitions from high-impedance to low-impedance clamping state. |
| VC (Clamping Voltage) | 53.9 V at 11.1 A IPPM - Peak voltage seen across protected circuit during worst-case 10/1000 μs transient; critical for IC-level survivability. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 μs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID (Reverse Leakage) | 1.0 μA max at VWM - Ultra-low leakage preserves signal integrity and battery life in always-on sensor interfaces. |
| TJ max | +150 °C - Junction temperature limit defining maximum ambient + self-heating envelope for continuous operation. |
| Package | SMB (DO-214AA) - Industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; optimized for automated placement. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; common node for bidirectional clamping path | Connected to line being protected; forms symmetrical clamp path with cathode during either polarity surge. |
| Cathode | Current exit point in forward bias; common node for bidirectional clamping path | Connected to reference plane (e.g., ground or VCC); completes low-impedance shunt path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and ungrounded power rails without polarity constraints. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive applications up to Level 4 (4 kV line-to-line). |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage over temperature and lifetime, critical for long-term field reliability. |
| Halogen-free, RoHS-compliant (M3 suffix) | Complies with environmental regulations and eliminates corrosive halogen emissions during PCB rework or end-of-life processing. |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life before reflow; eliminates baking requirement and simplifies manufacturing logistics. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and chassis ground to clamp ±100 V transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to sensitive AFEs and transceivers while maintaining <1 μA leakage at 33.3 V standby. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers (e.g., MAX13487) in factory automation networks exposed to motor switching noise and grounding faults. IC Role / Device Role / Timing Role: Differential-line TVS connected across A/B bus terminals to suppress common-mode surges up to ±30 A (10/1000 μs). Use Value: Limits clamped voltage to ≤53.9 V, ensuring transceiver survival without compromising data integrity during 600 W transient events. |
| Consumer USB Port ESD | Telecom DSL Line Protection |
|
Use Scenario: Shielding USB 2.0 D+/D− lines in set-top boxes and smart displays from human-body-model (HBM) ESD events up to ±15 kV. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at connector to divert ESD current before reaching USB PHY. Use Value: Achieves sub-nanosecond response with <1 μA leakage, preserving signal rise time and preventing false disconnects during hot-plug. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers in residential gateways subjected to lightning-induced longitudinal surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary surge limiter installed between line transformer secondary and codec IC, rated for repeated 600 W pulses. Use Value: Clamps induced surges to ≤53.9 V while sustaining 11.1 A peak current, protecting downstream SLIC and analog front-end components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ39CA-T | Same VWM (33.3 V), VC (53.9 V), and SMB package; differs in JEDEC-compliant marking and tape/reel packaging (7" vs. 13" reel options). | No functional difference in clamping or surge rating; identical thermal and electrical specs per datasheet. | Select SMBJ39CA-T if sourcing from Diodes Inc. distribution channels or requiring alternate reel size (e.g., 3200 pcs/13" reel). |
| 1.5SMC39CA | Higher package thermal resistance (RθJA ≈ 125 °C/W vs. 100 °C/W); same VWM/VC but larger SMC (DO-214AB) footprint (7.11 mm × 6.22 mm). | Requires PCB layout change; better suited for higher-power derating scenarios where SMB thermal limits are exceeded. | Choose 1.5SMC39CA only when board space allows larger package and junction temperature margin must exceed 150 °C under sustained surge duty. |
Compared with SMBJ39CA-T and 1.5SMC39CA, the P6SMB39CA-M3/52 offers identical electrical protection performance in a smaller SMB footprint with lower thermal resistance and halogen-free compliance-making it optimal for high-density automotive and industrial PCBs where space and environmental compliance are prioritized.
Availability
P6SMB39CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 networks, and consumer USB interface protection requiring stable component supply, consistent halogen-free material content, and MSL Level 1 assembly compatibility.
Supply support for P6SMB39CA-M3/52 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, MOSFETs, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The P6SMB Series is engineered for high-energy transient suppression in automotive, industrial, and telecom infrastructure-delivering consistent 600 W surge capability, AEC-Q101 qualification options, and robust glass-passivated junctions for mission-critical environments.
FAQ
What is the clamping voltage of the P6SMB39CA-M3/52 at its rated peak pulse current?
The P6SMB39CA-M3/52 has a maximum clamping voltage (VC) of 53.9 V at 11.1 A peak pulse current (IPPM) under the standard 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 surge events. The P6SMB39CA-M3/52 maintains this clamping performance across its full operating temperature range of -65 °C to +150 °C.
Is the P6SMB39CA-M3/52 suitable for automotive applications?
Yes, the P6SMB39CA-M3/52 is qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes (e.g., P6SMB39CAHM3_B/H). While the M3/52 variant itself is commercial-grade, its construction-including glass-passivated junction, MSL Level 1 rating, and 150 °C junction temperature-supports automotive use cases such as sensor protection and infotainment interface hardening. For certified automotive deployment, specify the HM3_B or HM3_I ordering code.
How does the bidirectional design of the P6SMB39CA-M3/52 affect its circuit placement?
The P6SMB39CA-M3/52 has no polarity marking and functions identically in both directions, allowing direct placement across any two nodes requiring symmetrical overvoltage protection-such as RS-485 A/B lines or AC-coupled audio paths. Unlike unidirectional TVS diodes, the P6SMB39CA-M3/52 eliminates orientation errors during automated assembly and avoids the need for dual-device solutions in differential signaling applications.
What is the thermal resistance of the P6SMB39CA-M3/52, and how does it impact power dissipation?
The P6SMB39CA-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W when mounted on 5.0 mm × 5.0 mm copper pads. This enables 5.0 W steady-state power dissipation at TA = 50 °C and supports short-duration 600 W surge handling. Exceeding recommended pad layout increases RθJA and risks thermal runaway during repetitive surges.
Does the P6SMB39CA-M3/52 meet RoHS and halogen-free requirements?
Yes, the "M3" suffix in P6SMB39CA-M3/52 explicitly denotes halogen-free, RoHS-compliant construction per Vishay's material categorization standard (document 99912). This includes absence of brominated flame retardants and chlorine-based compounds, meeting IPC-1752A Class 2 reporting and EU Directive 2011/65/EU Annex II amendments. The device carries full compliance documentation traceable through Vishay's material declarations portal.
P6SMB39CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 11.1A
- 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 (SMBJ)
P6SMB39CA-M3/52 FAQ
1.How can I place an order for P6SMB39CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB39CA-M3/52 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 P6SMB39CA-M3/52 reliable?
The price and inventory of P6SMB39CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB39CA-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB39CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB39CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB39CA-M3/52?
P6SMB39CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB39CA-M3/52 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 P6SMB39CA-M3/52?
For technical support, including P6SMB39CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB39CA-M3/52 requirements.
6.How does Aetrix verify that P6SMB39CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB39CA-M3/52 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 P6SMB39CA-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB39CA-M3/52?
All P6SMB39CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB39CA-M3/52, 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 P6SMB39CA-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB39CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB39CA-M3/52 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 …
