My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB27AHM3_B/H
- Part No.:
- P6SMB27AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27AHM3_B/H.pdf
- Description:
- 600W,27V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,492
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB27AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 23.1 V stand-off voltage (VWM), 25.7–28.4 V breakdown voltage (VBR) at 1 mA, 37.5 V maximum clamping voltage (VC) at 16.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB27AHM3_B/H datasheet, P6SMB27AHM3_B/H pinout, P6SMB27AHM3_B/H application, or P6SMB27AHM3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, 150 °C max junction temperature, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by transient overvoltage events. Its glass-passivated junction ensures stable breakdown behavior, low incremental surge resistance, and fast response time (<1 ns), enabling effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The P6SMB27AHM3_B/H is rated for 600 W peak pulse power (10/1000 μs), derated above 25 °C per Fig. 2, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W. It supports repetitive surge duty cycle of 0.01 % and meets MSL Level 1 per J-STD-020 at 260 °C peak reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 23.1 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 25.7–28.4 V at IT = 1 mA - Confirmed voltage range where device enters avalanche conduction; tight tolerance supports precise protection thresholding. |
| VC (Clamping) | 37.5 V at IPPM = 16.0 A - Maximum voltage seen by protected circuit during 10/1000 μs transient; determines downstream component stress level. |
| PPPM | 600 W - Peak pulse power handling capability under standardized 10/1000 μs waveform; defines transient energy absorption capacity. |
| TJ max | +150 °C - Maximum junction temperature; enables reliable operation in under-hood automotive and high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Low-profile surface-mount package with matte tin-plated leads; compatible with standard SMT reflow profiles and J-STD-002 solderability. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing; designated by HM3 suffix and _B/H ordering code. |
Pinout & Package
Package: SMB (DO-214AA), molded case meeting UL 94 V-0 flammability rating; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side of protected line; defines unidirectional polarity orientation in PCB layout. |
| Cathode | Current exit terminal during forward conduction; clamping node during reverse transient | Banded end; connected to higher-potential side (e.g., VCC rail); conducts avalanche current to ground during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust suppression of high-energy transients common in 12 V/24 V automotive and industrial power rails without thermal runaway. |
| Glass passivated chip junction | Ensures stable VBR tolerance, low leakage (<1 μA at VWM), and long-term reliability under thermal cycling and humidity stress. |
| AEC-Q101 qualified (HM3 + _B) | Validated for automotive applications including engine control units, body electronics, and ADAS sensors requiring zero-defect field performance. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow assembly without moisture-related popcorning or delamination risk. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-20D requirements for environmentally constrained electronics manufacturing. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VBAT and ground to limit voltage excursions to ≤37.5 V during 600 W surges. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers exposed to ISO 7637-2 Pulse 5a/b events. |
Use Scenario: Shielding analog front-end inputs of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Fast-response transient suppressor on 4–20 mA loop or RS-485 bus lines to absorb ESD and cable-coupled noise. Use Value: Maintains signal integrity by clamping transients within 1 ns while adding <1 pF junction capacitance at zero bias. |
| Consumer Power Adapter Input Stage | Telecom DC Power Distribution |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters supplying USB-C PD or PoE-powered devices. IC Role / Device Role / Timing Role: Standoff-rated TVS across output capacitor to clamp flyback transformer overshoot and rectifier reverse recovery spikes. Use Value: Limits output voltage excursion to 37.5 V during 10/1000 μs surges, preventing damage to downstream USB-PD controllers or Type-C port ICs. |
Use Scenario: DC input protection for telecom base station power modules fed from -48 V distributed supply. IC Role / Device Role / Timing Role: Unidirectional TVS on -48 V rail input to suppress lightning-induced surges entering via long interconnect cables. Use Value: Absorbs up to 600 W transient energy while maintaining <1 μA leakage at -23.1 V, ensuring minimal standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/5B | Same SMB package, 24 V VWM, 26.7–29.5 V VBR, 38.9 V VC at 15.4 A; 400 W PPPM; commercial grade (not AEC-Q101). | Lacks automotive qualification and lower clamping voltage margin; suitable for non-automotive industrial use only. | Select when AEC-Q101 is not required and 24 V system margin allows tighter VWM/VC spacing. |
| 1.5SMC27A | Same 27 V nominal rating, but in larger SMC (DO-214AB) package; 600 W PPPM; VC = 43.0 V at 13.9 A; no AEC-Q101 option. | Higher clamping voltage and 2.5× larger footprint; requires PCB redesign; not automotive-qualified. | Choose only if existing SMC footprint is fixed and higher VC is acceptable for protected circuit's voltage tolerance. |
Compared with SMAJ24A-E3/5B and 1.5SMC27A, the P6SMB27AHM3_B/H delivers AEC-Q101 validation, halogen-free compliance, and optimized 37.5 V clamping in the compact SMB outline - making it the preferred choice for space-constrained, automotive-grade transient protection where reliability and regulatory alignment are critical.
Availability
P6SMB27AHM3_B/H is available at Aetrix Electronics and suitable for automotive control units, industrial sensor nodes, consumer power adapters, and telecom DC distribution systems requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P6SMB27AHM3_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 is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the maximum clamping voltage of the P6SMB27AHM3_B/H under a 10/1000 μs transient?
The P6SMB27AHM3_B/H has a maximum clamping voltage (VC) of 37.5 V at 16.0 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuits during surge events. The P6SMB27AHM3_B/H maintains this clamping performance across its specified operating temperature range.
Is the P6SMB27AHM3_B/H qualified for automotive applications?
Yes, the P6SMB27AHM3_B/H is AEC-Q101 qualified, as confirmed by the HM3 suffix (halogen-free, RoHS-compliant) and _B revision code indicating automotive-grade qualification. It undergoes stress testing for temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev G, making it suitable for under-hood and chassis-mounted automotive electronics. The P6SMB27AHM3_B/H is explicitly listed in Vishay's AEC-Q101 qualified product matrix.
What does the "_B/H" suffix mean in P6SMB27AHM3_B/H?
The "_B" denotes AEC-Q101 qualification for the P6SMB27AHM3_B/H, while "/H" specifies packaging in 7" diameter plastic tape and reel with 750 units per reel. This ordering code aligns with Vishay's documented format in Section 3 of datasheet 88370, where _B indicates automotive qualification for P6SMB6.8A–P6SMB220A variants, and /H identifies the reel size and quantity configuration for SMT assembly logistics.
What is the thermal resistance of the P6SMB27AHM3_B/H, and how does it affect PCB layout?
The P6SMB27AHM3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe operation at full 600 W pulse rating, PCB layout must provide adequate copper area and minimize thermal impedance - undersized pads will cause excessive junction temperature rise and potential failure during repetitive surges. The P6SMB27AHM3_B/H datasheet recommends minimum pad dimensions of 0.086" × 0.060".
How does the P6SMB27AHM3_B/H compare to bidirectional TVS diodes like P6SMB27CA?
The P6SMB27AHM3_B/H is unidirectional, meaning it conducts only in reverse bias during transients and blocks forward current - ideal for DC power rail protection where polarity is fixed. In contrast, P6SMB27CA is bidirectional with symmetrical clamping in both directions, suited for AC lines or data buses like RS-485. The P6SMB27AHM3_B/H offers lower leakage (<1 μA at 23.1 V) and tighter VBR tolerance than its bidirectional counterpart, but cannot protect AC-coupled signals without external polarity management.
P6SMB27AHM3_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):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
P6SMB27AHM3_B/H FAQ
1.How can I place an order for P6SMB27AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27AHM3_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 P6SMB27AHM3_B/H reliable?
The price and inventory of P6SMB27AHM3_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 P6SMB27AHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB27AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27AHM3_B/H?
P6SMB27AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27AHM3_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 P6SMB27AHM3_B/H?
For technical support, including P6SMB27AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27AHM3_B/H requirements.
6.How does Aetrix verify that P6SMB27AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB27AHM3_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 P6SMB27AHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB27AHM3_B/H?
All P6SMB27AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27AHM3_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 P6SMB27AHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB27AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27AHM3_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 …
