My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB39AHM3_B/H
- Part No.:
- P6SMB39AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB39AHM3_B/H.pdf
- Description:
- 600W,39V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,790
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB39AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 39 V breakdown voltage (VBR = 37.1–41.0 V at IT = 1.0 mA), 53.9 V maximum clamping voltage (VC) at 11.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power electronics.
For engineers reviewing the P6SMB39AHM3_B/H datasheet, P6SMB39AHM3_B/H pinout, P6SMB39AHM3_B/H application, or P6SMB39AHM3_B/H equivalent, this AEC-Q101 qualified, halogen-free, RoHS-compliant TVS offers verified clamping performance, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability board-level surge protection design and automotive-grade BOM qualification.
Technical Context
This device operates as a unidirectional avalanche diode with cathode-band polarity marking, designed to clamp transient overvoltages above its reverse standoff voltage (VWM = 33.3 V) while maintaining low leakage (<1.0 μA at VWM). Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns).
Thermally, it features RθJA = 100 °C/W (junction-to-ambient, on recommended 0.2" × 0.2" copper pads) and RθJL = 20 °C/W (junction-to-lead), enabling reliable operation up to TJ = +150 °C. The 600 W peak pulse rating is specified under repetitive 0.01% duty cycle conditions per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V at 1.0 mA test current - defines precise avalanche initiation window for predictable clamping onset |
| VWM | 33.3 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 53.9 V at 11.1 A - clamped voltage during 600 W transient event; determines protected circuit's maximum stress level |
| IPPM | 11.1 A (10/1000 μs waveform) - peak surge current capability directly tied to PCB pad thermal design |
| PPPM | 600 W - standardized surge energy handling capacity used for IEC 61000-4-5 compliance margining |
| TJ max. | +150 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures |
| AEC-Q101 Qualified | Yes - validated for automotive electronic systems requiring robust transient immunity and long-term reliability |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (unidirectional) | Connected to system ground or lower-potential rail; conducts during forward surge events |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 39 V supply rail); avalanches when transient exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 Level 3/4 surge immunity requirements without external heat sinking |
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without pre-baking or special handling |
| AEC-Q101 qualified (HM3_B suffix) | Validated for automotive applications including engine control units, ADAS sensors, and body electronics |
| Halogen-free & RoHS-compliant | Fulfills environmental compliance mandates for EU, China RoHS, and global OEM sustainability programs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 36 V battery-supplied ECUs from load-dump transients and alternator ripple spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 36 V rail and chassis ground to clamp surges >33.3 V. Use Value: Limits rail voltage to ≤53.9 V during 11.1 A transients, preventing damage to downstream DC-DC converters and microcontrollers. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted at connector interface to absorb ESD (IEC 61000-4-2 ±8 kV) and cable-induced surges. Use Value: Sub-1 ns response and <1.0 μA leakage at 33.3 V preserve signal integrity and minimize offset error in 12-bit ADC front-ends. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Snubbing |
|
Use Scenario: Safeguarding PoE-powered network switches against induced lightning surges on 48 V input lines. IC Role / Device Role / Timing Role: Primary clamping device on DC input before primary filter capacitor and DC-DC stage. Use Value: 600 W rating handles multi-pulse surge events per ITU-T K.20/K.21; SMB footprint minimizes board area vs. larger DO-214AB alternatives. |
Use Scenario: Suppressing flyback voltage spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp inductive kickback during PWM commutation. Use Value: 33.3 V VWM aligns with 24–36 V motor drive rails; 53.9 V clamping prevents MOSFET avalanche failure during rapid turn-off. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ39A-E3/5B | Same VBR range (37.1–41.0 V), but SMA package (smaller footprint, higher RθJA = 140 °C/W), non-AEC-Q101, RoHS-compliant only | Limited to commercial-grade applications; unsuitable for automotive due to lack of AEC-Q101 validation and lower surge margin | Select when space-constrained PCB layout prioritizes size over automotive qualification and thermal robustness |
| 1.5SMC39AHE3_A/H | Same VBR/VC, but SMC (DO-214AB) package (larger, RθJA = 70 °C/W), AEC-Q101 qualified, halogen-free | Better thermal dissipation supports higher repetitive surge rates; requires 30% more board area than SMB | Choose for high-duty-cycle industrial surge environments where thermal headroom outweighs footprint constraints |
Compared with SMAJ39A-E3/5B, P6SMB39AHM3_B/H delivers automotive-grade reliability and superior thermal performance in identical voltage class; versus 1.5SMC39AHE3_A/H, it trades 30% smaller footprint for slightly reduced thermal margin - ideal for space-limited AEC-Q101 designs.
Availability
P6SMB39AHM3_B/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, AEC-Q101 traceability, and halogen-free compliance.
Supply support for P6SMB39AHM3_B/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets board-level transient protection in automotive, industrial, and telecom systems - engineered for high-energy clamping, automated SMT compatibility, and AEC-Q101 qualification from wafer to final test.
FAQ
What is the maximum clamping voltage of P6SMB39AHM3_B/H under surge conditions?
The P6SMB39AHM3_B/H has a maximum clamping voltage (VC) of 53.9 V when subjected to its rated peak pulse current of 11.1 A (10/1000 μs waveform). This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuits during transient events. Designers must ensure downstream components tolerate ≤53.9 V under worst-case surge conditions. The P6SMB39AHM3_B/H achieves this clamping performance with low incremental surge resistance and fast avalanche response.
Is P6SMB39AHM3_B/H suitable for automotive applications?
Yes, P6SMB39AHM3_B/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials - explicitly intended for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. Its qualification covers temperature cycling, humidity testing, and surge endurance per AEC-Q101 stress profiles. The HM3_B suffix denotes automotive-grade packaging and traceability, making P6SMB39AHM3_B/H appropriate for under-hood and cabin-mounted systems requiring long-term reliability.
What does the "_B/H" suffix mean in P6SMB39AHM3_B/H?
The "_B" in P6SMB39AHM3_B/H indicates AEC-Q101 qualification for the P6SMB6.8A–P6SMB220A voltage range, while "/H" specifies 7-inch plastic tape-and-reel packaging with 750 units per reel. The "HM3" portion confirms halogen-free, RoHS-compliant construction. This full suffix identifies a production-ready, automotive-qualified variant with standardized logistics formatting - distinct from commercial-grade (E3/M3) or alternate reel sizes (e.g., /I for 13-inch reels). P6SMB39AHM3_B/H is not a sample or evaluation part.
How does P6SMB39AHM3_B/H compare to bidirectional TVS diodes like P6SMB39CA?
P6SMB39AHM3_B/H is unidirectional and features a cathode band for polarity-sensitive placement, whereas P6SMB39CA is bidirectional with no polarity marking and symmetric clamping in both directions. The unidirectional P6SMB39AHM3_B/H offers lower leakage (<1.0 μA at 33.3 V) and tighter VBR tolerance versus bidirectional variants, making it preferred for DC rail protection. Bidirectional types suit AC-coupled or floating signal lines. P6SMB39AHM3_B/H cannot replace P6SMB39CA in AC applications without circuit redesign.
What PCB layout guidance applies to P6SMB39AHM3_B/H for optimal surge performance?
For rated 600 W surge handling, P6SMB39AHM3_B/H must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve specified thermal resistance (RθJA = 100 °C/W). Trace width should be ≥20 mils, and ground/power planes should be solid beneath the device. Avoid thermal reliefs on pads. Placement must be within 2 cm of the protected connector or IC pin, with short, direct paths to minimize inductance. These practices ensure P6SMB39AHM3_B/H clamps transients before voltage overshoot damages sensitive components.
P6SMB39AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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_B/H FAQ
1.How can I place an order for P6SMB39AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB39AHM3_B/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_B/H reliable?
The price and inventory of P6SMB39AHM3_B/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_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB39AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB39AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB39AHM3_B/H?
P6SMB39AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB39AHM3_B/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_B/H?
For technical support, including P6SMB39AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB39AHM3_B/H requirements.
6.How does Aetrix verify that P6SMB39AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB39AHM3_B/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_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB39AHM3_B/H?
All P6SMB39AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB39AHM3_B/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_B/H part is unused and in its original packaging.
Return procedure for P6SMB39AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB39AHM3_B/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 …
