My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB36A-M3/5B
;;2.jpg)
- Part No.:
- P6SMB36A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36A-M3/5B.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,244
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB36A-M3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 36 V breakdown voltage (VBR = 34.2–37.8 V at IT = 1.0 mA), 49.9 V maximum clamping voltage (VC) at 12.0 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 industrial and automotive electronics.
For engineers reviewing the P6SMB36A-M3/5B datasheet, P6SMB36A-M3/5B pinout, P6SMB36A-M3/5B application, or P6SMB36A-M3/5B equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, and halogen-free RoHS-compliant sourcing details for production-grade transient protection design.
Technical Context
The P6SMB36A-M3/5B operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast response (<1 ps) to voltage transients and low incremental surge resistance. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive 10/1000 μs surges at 0.01% duty cycle.
Thermal performance is defined by RθJA = 100 °C/W (junction-to-ambient, on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W (junction-to-lead), enabling operation up to TJ = +150 °C. The device meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V at IT = 1.0 mA - defines precise avalanche initiation threshold for repeatable clamping onset |
| VWM | 30.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 49.9 V at 12.0 A - clamped voltage during 600 W transient, limiting stress on downstream circuitry |
| IPPM | 12.0 A (10/1000 μs) - peak surge current capability determines protection margin against ISO 7637-2 Pulse 1/2a/5a |
| PPPM | 600 W - peak pulse power rating establishes transient energy absorption capacity per event |
| TJ max. | +150 °C - maximum junction temperature enables use in under-hood automotive and high-ambient industrial environments |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height for automated placement |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD22-B102; cathode indicated by band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected line's lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Current exit terminal during reverse avalanche | Connected to protected line's higher-potential side (e.g., supply rail or signal line); band-marked end for orientation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against high-energy transients like load dump and inductive kick without degradation over 1000+ events |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected ICs-critical for 3.3 V or 5 V logic interfaces |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and supports green manufacturing compliance programs |
| MSL Level 1, 260 °C reflow compatible | Allows single-pass lead-free reflow assembly without moisture sensitivity concerns or baking preconditioning |
| AEC-Q101 qualified option (_B suffix) | Validated for automotive applications including body control modules and sensor front-ends requiring zero defect reliability |
Applications
| Automotive Body Control Module | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protects microcontroller GPIOs and CAN transceiver pins from load-dump spikes (ISO 16750-2) and relay coil flyback in door module PCBs. IC Role / Device Role: Unidirectional TVS placed between 12 V supply rail and ground, shunting transients before they reach LDOs and MCU power domains. Use Value: Clamps 300 V/100 ms load dump to ≤49.9 V, preventing latch-up or permanent damage to 5 V tolerant I/O cells. |
Use Scenario: Shields 24 V digital input channels of programmable logic controllers from field-wiring induced surges (IEC 61000-4-5 Level 3). IC Role / Device Role: Standoff-connected TVS across input optocoupler anode-cathode, conducting only during >30.8 V transients. Use Value: Limits transient voltage to 49.9 V at 12 A, ensuring optocoupler CTR remains stable and input stage survives repeated 2 kV surges. |
| Consumer Appliance Motor Drive | Telecom Power Supply OVP |
|
Use Scenario: Suppresses back-EMF from brushed DC motors in washing machine control boards during commutation and stall events. IC Role / Device Role: Mounted across motor driver H-bridge high-side FET drain-source, clamping inductive spikes before they exceed VDSS. Use Value: Absorbs 600 W pulses with <1 ns response, reducing MOSFET failure rate by >90% versus Zener-only solutions. |
Use Scenario: Provides secondary overvoltage protection on +48 V telecom rectifier outputs, guarding against regulator failure or feedback loop loss. IC Role / Device Role: Connected from output rail to ground, triggered when output exceeds 30.8 V due to open-loop condition. Use Value: Clamps fault voltage to 49.9 V within nanoseconds, preventing damage to downstream DC-DC converters and FPGA power rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5B | Same VBR range (34.2–37.8 V), but lower PPPM = 400 W and larger SMA package (DO-214AC) | Lower surge margin; suitable only for non-automotive consumer applications with reduced transient severity | Select when board space allows larger footprint and system-level testing confirms 400 W suffices |
| 1.5SMC36A | Same electrical specs but SMC (DO-214AB) package - 7.11 mm × 6.22 mm vs. SMB's 5.59 mm × 4.06 mm | Requires PCB layout revision; higher thermal mass improves sustained surge handling but reduces density | Choose for legacy designs using SMC footprints or where higher IPPM derating margin is needed |
Compared with SMAJ36A-E3/5B and 1.5SMC36A, the P6SMB36A-M3/5B delivers identical clamping performance in the smallest standardized surface-mount TVS outline, enabling higher board density and compatibility with fine-pitch automated placement systems without sacrificing 600 W surge rating.
Availability
P6SMB36A-M3/5B is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and telecom power supply protection requiring stable component supply, halogen-free compliance, and AEC-Q101-qualified traceability.
Supply support for P6SMB36A-M3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and consumer systems-designed for robustness under repetitive surge stress and seamless integration into automated SMT lines.
FAQ
What is the maximum clamping voltage of the P6SMB36A-M3/5B under a 10/1000 μs surge?
The P6SMB36A-M3/5B has a maximum clamping voltage (VC) of 49.9 V at 12.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is guaranteed across temperature and production lot, ensuring consistent overvoltage limiting for protected circuits. The P6SMB36A-M3/5B achieves this with low dynamic impedance, minimizing voltage overshoot during fast-rising transients.
Is the P6SMB36A-M3/5B halogen-free and RoHS-compliant?
Yes, the P6SMB36A-M3/5B carries the "M3" suffix, indicating it is both halogen-free and RoHS-compliant per EU Directive 2011/65/EU and IPC-1752A material declarations. The molding compound meets UL 94 V-0, and terminals are matte tin-plated to J-STD-002 standards. The P6SMB36A-M3/5B is certified for green manufacturing and export to regulated markets without restriction.
Does the P6SMB36A-M3/5B meet AEC-Q101 qualification?
The base P6SMB36A-M3/5B is commercial-grade; however, the AEC-Q101 qualified version is designated P6SMB36AHM3_B/5B (with "_B" revision code). That variant undergoes extended stress testing-including temperature cycling, HTRB, and ESD-to validate reliability for automotive under-hood and chassis applications. The P6SMB36A-M3/5B itself is not AEC-Q101 qualified unless ordered with the _B suffix.
What is the thermal resistance of the P6SMB36A-M3/5B, and how does it affect layout?
The P6SMB36A-M3/5B 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. To maintain TJ ≤ 150 °C during repetitive surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks. The P6SMB36A-M3/5B also features RθJL = 20 °C/W, confirming efficient heat transfer to PCB traces via its leads.
How does the P6SMB36A-M3/5B compare to bidirectional TVS diodes like P6SMB36CA-M3/5B?
The P6SMB36A-M3/5B is unidirectional and intended for DC-biased lines (e.g., 12 V supply rails), while P6SMB36CA-M3/5B is bidirectional for AC or floating signal lines (e.g., RS-485, USB D+/D−). The P6SMB36A-M3/5B offers lower leakage (<1.0 μA at 30.8 V) and higher IFSM (100 A) than its bidirectional counterpart. Use the P6SMB36A-M3/5B when protecting polarized circuits where reverse conduction must be blocked.
P6SMB36A-M3/5B 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
P6SMB36A-M3/5B FAQ
1.How can I place an order for P6SMB36A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36A-M3/5B 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 P6SMB36A-M3/5B reliable?
The price and inventory of P6SMB36A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB36A-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB36A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36A-M3/5B?
P6SMB36A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36A-M3/5B 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 P6SMB36A-M3/5B?
For technical support, including P6SMB36A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36A-M3/5B requirements.
6.How does Aetrix verify that P6SMB36A-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB36A-M3/5B 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 P6SMB36A-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB36A-M3/5B?
All P6SMB36A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36A-M3/5B, 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 P6SMB36A-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB36A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36A-M3/5B 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 …
