My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB39AHM3_A/H
- Part No.:
- P6SMB39AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB39AHM3_A/H.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,234
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB39AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 33.3 V standoff voltage (VWM), 37.1–41.0 V breakdown voltage (VBR) at 1 mA, 53.9 V maximum clamping voltage (VC) at 11.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive-grade industrial power supplies and sensor interface circuits.
For engineers reviewing the P6SMB39AHM3_A/H datasheet, P6SMB39AHM3_A/H pinout, P6SMB39AHM3_A/H application, or P6SMB39AHM3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant HM3 suffix, SMB (DO-214AA) package compatibility, and verified clamping performance under repetitive surge conditions per IEC 61000-4-5.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and low incremental surge resistance. Its thermal design supports 150 °C max junction temperature and 100 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads.
The device delivers fast response time (<1 ns) to transient events and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits a +0.100 %/°C temperature coefficient of VBR, ensuring predictable voltage drift across operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 33.3 V - Maximum continuous reverse working voltage before clamping initiates; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 37.1–41.0 V at 1 mA - Verified avalanche onset range; ensures reliable triggering without premature conduction. |
| VC (Clamping) | 53.9 V at 11.1 A - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream IC survivability. |
| PPPM | 600 W - Sustained transient energy absorption capability under standardized 10/1000 μs waveform at 0.01% duty cycle. |
| IPPM | 11.1 A - Corresponding peak pulse current at VC; used to size PCB trace routing and grounding paths. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Low-profile surface-mount outline with 2.2 mm height; optimized for automated placement and space-constrained layouts. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; establishes polarity-sensitive clamping direction. |
| Cathode | Avalanche conduction path / Clamping node | Connected to higher-potential side (e.g., VCC rail or signal line); conducts surge current to ground when VRM exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces under stress test conditions. |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for industrial and automotive OEMs without compromising surge robustness. |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity in DC power rails and CAN/LIN bus protection designs. |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, reducing stress on downstream MOSFETs and microcontrollers. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns, simplifying manufacturing flow for high-reliability boards. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground to clamp surges above 33.3 V. Use Value: Limits peak clamped voltage to 53.9 V, safeguarding 36 V-rated regulators and CAN transceivers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS connected across differential pair or single-ended output to suppress sub-100 ns transients. Use Value: Sub-1 ns response and 53.9 V clamping prevent latch-up in precision ADC front-ends and op-amp buffers. |
| Telecom DC Power Input Protection | Consumer Device USB/DC Jack Protection |
|
Use Scenario: Safeguarding PoE-powered equipment inputs against induced lightning surges and switching transients. IC Role / Device Role / Timing Role: Primary clamping device on 48 V input rail upstream of DC-DC converter. Use Value: 600 W rating handles repeated 10/1000 μs surges while maintaining <10 μA leakage at 33.3 V. |
Use Scenario: Preventing damage to charging ICs and battery management systems from accidental AC adapter misconnection. IC Role / Device Role / Timing Role: Unidirectional TVS on VIN line of USB-C PD or barrel-jack input stage. Use Value: 33.3 V standoff avoids conduction during normal 20 V PD operation; 53.9 V clamping protects 36 V tolerant ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5B | Same SMB package, 33 V VWM, but lower 400 W PPPM and no AEC-Q101 qualification. | Rated for commercial-grade consumer electronics only; not validated for automotive thermal cycling or humidity testing. | Select when cost sensitivity outweighs automotive reliability requirements and surge energy stays below 400 W. |
| 1.5SMC33A | Higher-power SMC package (same VWM/VC), 1500 W PPPM, but larger footprint and no HM3 halogen-free option. | Used where board space permits larger package and higher surge margin is required (e.g., industrial motor drives). | Choose when system-level surge testing exceeds 600 W or when legacy SMC layout compatibility is mandatory. |
Compared with SMAJ33A-E3/5B and 1.5SMC33A, P6SMB39AHM3_A/H uniquely balances AEC-Q101 qualification, halogen-free compliance, SMB footprint, and 600 W surge capacity - making it optimal for space-constrained automotive and industrial modules requiring certified reliability.
Availability
P6SMB39AHM3_A/H is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, telecom power supplies, and consumer USB-C power delivery systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB39AHM3_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 leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for consistent clamping performance, low leakage, and robust surge endurance under real-world thermal and mechanical stress.
FAQ
What is the clamping voltage of P6SMB39AHM3_A/H at its rated peak pulse current?
The P6SMB39AHM3_A/H has a maximum clamping voltage (VC) of 53.9 V at 11.1 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per standard test conditions defined in the Vishay datasheet (Document Number: 88370), and represents the highest voltage imposed on the protected circuit during surge conduction. The P6SMB39AHM3_A/H maintains this clamping performance across its specified operating temperature range.
Is P6SMB39AHM3_A/H qualified for automotive applications?
Yes, P6SMB39AHM3_A/H is AEC-Q101 qualified, as indicated by the "HM3" suffix and confirmed in Vishay's ordering information table (page 3). It undergoes stress testing for temperature cycling, humidity, mechanical shock, and surge endurance per AEC-Q101 Rev D. This qualification makes P6SMB39AHM3_A/H suitable for under-hood and cabin electronics where reliability under harsh environmental conditions is mandatory.
What does the "HM3" suffix mean in P6SMB39AHM3_A/H?
The "HM3" suffix in P6SMB39AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's documentation, HM3 parts use molding compounds and plating that meet JEDEC J-STD-20 and JESD201 Class 2 whisker resistance requirements. This distinguishes P6SMB39AHM3_A/H from commercial-grade "M3" variants and confirms its suitability for automotive and high-reliability industrial deployments.
Can P6SMB39AHM3_A/H be used in bidirectional protection circuits?
No, P6SMB39AHM3_A/H is a unidirectional TVS diode, as confirmed by its part number structure (no "C" suffix) and polarity marking (cathode band). Bidirectional variants in the same series use "CA" suffixes (e.g., P6SMB39CA). Using P6SMB39AHM3_A/H in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What is the thermal resistance of P6SMB39AHM3_A/H, and how does it affect PCB layout?
P6SMB39AHM3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimal copper area; increasing pad size or adding internal ground planes reduces RθJA. For sustained power dissipation or high ambient temperatures, designers must verify junction temperature remains ≤150 °C using this RθJA and actual power dissipation in the P6SMB39AHM3_A/H application.
P6SMB39AHM3_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:
- 1
- Bidirectional Channels:
- -
- 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:
- 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)
P6SMB39AHM3_A/H FAQ
1.How can I place an order for P6SMB39AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB39AHM3_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 P6SMB39AHM3_A/H reliable?
The price and inventory of P6SMB39AHM3_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 P6SMB39AHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB39AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB39AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB39AHM3_A/H?
P6SMB39AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB39AHM3_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 P6SMB39AHM3_A/H?
For technical support, including P6SMB39AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB39AHM3_A/H requirements.
6.How does Aetrix verify that P6SMB39AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB39AHM3_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 P6SMB39AHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB39AHM3_A/H?
All P6SMB39AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB39AHM3_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 P6SMB39AHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB39AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB39AHM3_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 …
