My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB36AHM3_B/H
- Part No.:
- P6SMB36AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB36AHM3_B/H.pdf
- Description:
- 600W,36V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,661
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB36AHM3_B/H from Vishay General Semiconductor is a unidirectional 36 V standoff transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 600 W peak pulse power (10/1000 μs), 49.9 V maximum clamping voltage at 12.0 A peak pulse current, and AEC-Q101 qualified for automotive applications. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in engine control units and body electronics.
For engineers reviewing the P6SMB36AHM3_B/H datasheet, P6SMB36AHM3_B/H pinout, P6SMB36AHM3_B/H application, or P6SMB36AHM3_B/H equivalent, key selection criteria include clamping voltage margin vs. protected device VDS/VCC, IPPM derating above 25 °C, unidirectional polarity marking, and halogen-free RoHS compliance with MSL Level 1 reflow capability.
Technical Context
This TVS diode operates as a shunt-clamping overvoltage protection device, triggered when reverse voltage exceeds its 34.2–37.8 V breakdown range (IT = 1.0 mA). Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for suppressing sub-microsecond transients on 12 V/24 V automotive power rails.
The device is designed for surface-mount placement on PCBs with 0.2" × 0.2" copper pads per terminal, leveraging SMB package thermal resistance (RθJA = 100 °C/W, RθJL = 20 °C/W) to sustain repetitive 600 W pulses at 0.01% duty cycle without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 30.8 V - Maximum continuous reverse operating voltage before significant leakage; ensures no conduction during normal 24 V system operation. |
| Breakdown Voltage (VBR) | 34.2–37.8 V at 1.0 mA - Tight tolerance band defines precise clamping onset; guarantees activation before downstream IC absolute maximum ratings are exceeded. |
| Clamping Voltage (VC) | 49.9 V at 12.0 A - Measured peak voltage under 10/1000 μs surge; determines worst-case stress on protected circuitry during transient events. |
| Peak Pulse Power (PPPM) | 600 W - Sustained energy absorption capacity per single 10/1000 μs waveform; validates robustness against ISO 7637-2 Pulse 1/2a/5a threats. |
| Junction Temperature Range | −65 °C to +150 °C - Enables deployment in under-hood automotive environments where ambient temperatures exceed 105 °C. |
| AEC-Q101 Qualification | Qualified - Confirms reliability for automotive electronic modules per stress test requirements including HTOL, TCT, and ESD HBM ≥ 8 kV. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with cathode band marking; compatible with automated pick-and-place and reflow soldering at 260 °C peak. |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 flammability rating, and polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage rail; establishes reference for clamping action during positive transients on cathode side. |
| Cathode | Protected line input | Connected to power rail or signal line requiring protection; conducts surge current to anode when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of high-energy transients such as load dump (ISO 7637-2 Pulse 5a) without failure. |
| AEC-Q101 qualified (HM3 suffix) | Validates long-term reliability in automotive ECUs, including temperature cycling, humidity bias, and mechanical shock endurance. |
| Halogen-free & RoHS-compliant | Meets automotive OEM material restrictions (e.g., GMW3172, Ford WSS-M99P9999-A1) and end-of-life recycling requirements. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (peak 260 °C) without baking preconditioning. |
| Glass passivated junction | Provides stable VBR tolerance and low leakage (<1.0 μA at VWM) across temperature and lifetime. |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppresses load dump transients (up to 60 V, 400 ms) on 12 V supply rail feeding microcontroller and driver ICs in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between battery rail and local DC/DC input, activated within <1 ns to limit voltage excursion below 50 V. Use Value: Prevents latch-up or gate oxide damage in protected 3.3 V/5 V logic and 40 V-rated MOSFETs during ISO 7637-2 Pulse 5a events. |
Use Scenario: Guards LIN bus or analog sensor outputs (e.g., pressure, temperature) against ESD and inductive kickback from nearby solenoids or relays. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 100 pF at 0 V) unidirectional clamp on signal line, referenced to ground via short trace. Use Value: Maintains signal integrity below 1 Mbps LIN data rate while absorbing ±8 kV contact ESD per IEC 61000-4-2. |
| Body Control Module (BCM) CAN Transceiver Protection | Start-Stop System Battery Monitoring Circuit |
Use Scenario: Protects high-speed CAN FD transceivers (e.g., TCAN1042) from coupled transients on vehicle chassis ground during alternator regulation faults. IC Role / Device Role / Timing Role: Unidirectional TVS on CAN_H/CAN_L common-mode path, with VWM > 15 V to avoid interference with 2.2–3.3 V differential signaling. Use Value: Clamps common-mode surges to <50 V without distorting CAN bit timing or triggering false dominant states. |
Use Scenario: Shields precision voltage dividers and ADC inputs monitoring 12 V battery state-of-charge during aggressive start-stop cycling with repeated cranking transients. IC Role / Device Role / Timing Role: Front-end protection for 16-bit SAR ADC reference path, placed before RC filter to prevent saturation during 100 V/50 ms cranking spikes. Use Value: Ensures accurate battery voltage measurement remains within ±0.5% error despite 40 V transient excursions on supply rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5B | Same VWM (30.8 V), lower PPPM (400 W), SMA package (DO-214AC), non-AEC-Q101 | Limited to commercial-grade industrial controls; insufficient for automotive load dump immunity. | Select only for cost-sensitive non-automotive designs where 400 W surge margin is adequate. |
| 1.5SMC36AHE3_A/H | Same VWM and PPPM, but SMC package (DO-214AB), higher RθJA (120 °C/W), AEC-Q101 qualified | Lower power density due to larger footprint; requires more PCB area and exhibits greater thermal rise under repetitive surges. | Choose when existing layout uses SMC footprints or when higher surge repetition rate demands better thermal mass. |
Compared with SMAJ36A-E3/5B and 1.5SMC36AHE3_A/H, P6SMB36AHM3_B/H delivers optimal balance of automotive qualification, SMB footprint efficiency, and 600 W surge handling-making it the preferred choice for space-constrained ECU and BCM designs requiring AEC-Q101 compliance.
Availability
P6SMB36AHM3_B/H is available at Aetrix Electronics and suitable for automotive engine control units, body electronics modules, and start-stop battery monitoring systems requiring stable component supply with full traceability and lifecycle management.
Supply support for P6SMB36AHM3_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, and protection devices with emphasis on automotive, industrial, and computing applications.
The P6SMB Series targets automotive-grade transient suppression, engineered specifically to meet ISO 7637-2 and IEC 61000-4-5 immunity requirements in harsh vehicular environments.
FAQ
What is the maximum clamping voltage of the P6SMB36AHM3_B/H under a 10/1000 μs surge?
The P6SMB36AHM3_B/H has a maximum clamping voltage (VC) of 49.9 V at 12.0 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB36AHM3_B/H maintains this clamping performance across its specified junction temperature range (−65 °C to +150 °C), ensuring consistent protection in under-hood automotive applications.
Is the P6SMB36AHM3_B/H suitable for bidirectional transient suppression?
No, the P6SMB36AHM3_B/H is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. It conducts only during reverse-biased overvoltage events and blocks forward current like a standard rectifier. For bidirectional protection, Vishay offers the P6SMB36CA variant. Using P6SMB36AHM3_B/H in a bidirectional configuration would leave the forward-polarity transient unprotected, risking damage to downstream components.
Does the P6SMB36AHM3_B/H require derating at elevated ambient temperatures?
Yes, the P6SMB36AHM3_B/H must be derated above 25 °C ambient temperature. Its peak pulse power (600 W) and peak pulse current (12.0 A) decrease linearly per Figure 2 in the datasheet, with full derating to zero at 150 °C junction temperature. Designers must calculate actual junction temperature using RθJA = 100 °C/W and ensure thermal design margins accommodate worst-case surge repetition rates and PCB copper area.
What does the "HM3_B/H" suffix signify in P6SMB36AHM3_B/H?
The "HM3" suffix denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification; "B" indicates AEC-Q101 qualification level for the 6.8 V–220 V voltage range; and "H" specifies packaging in 7" diameter plastic tape and reel (750 units per reel). This full suffix confirms the P6SMB36AHM3_B/H meets automotive material and reliability standards while enabling automated assembly in high-volume production.
Can the P6SMB36AHM3_B/H replace older P6SMB36A-E3 parts in existing designs?
Yes, the P6SMB36AHM3_B/H is a direct functional and mechanical replacement for P6SMB36A-E3, sharing identical electrical characteristics, SMB (DO-214AA) package dimensions, and pinout. The HM3 version adds halogen-free materials and AEC-Q101 qualification-no PCB layout or schematic changes are required, though designers should verify compliance documentation aligns with their automotive program's material declaration requirements.
P6SMB36AHM3_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):
- 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:
- 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)
P6SMB36AHM3_B/H FAQ
1.How can I place an order for P6SMB36AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB36AHM3_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 P6SMB36AHM3_B/H reliable?
The price and inventory of P6SMB36AHM3_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 P6SMB36AHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB36AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB36AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB36AHM3_B/H?
P6SMB36AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB36AHM3_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 P6SMB36AHM3_B/H?
For technical support, including P6SMB36AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB36AHM3_B/H requirements.
6.How does Aetrix verify that P6SMB36AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB36AHM3_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 P6SMB36AHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB36AHM3_B/H?
All P6SMB36AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB36AHM3_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 P6SMB36AHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB36AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB36AHM3_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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
