My Inquiry
My Account
Vishay General Semiconductor - Diodes Division P6SMB15AHM3/H
- Part No.:
- P6SMB15AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15AHM3/H.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,275
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6SMB15AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping transient overvoltages on power and signal lines. It features 15 V standoff voltage (VWM), 21.2 V maximum clamping voltage at 28.3 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB15AHM3/H datasheet, P6SMB15AHM3/H pinout, P6SMB15AHM3/H application, or P6SMB15AHM3/H equivalent, key selection criteria include clamping voltage margin relative to protected device's absolute maximum rating, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its breakdown threshold of 14.3–15.8 V at 1 mA test current. Its low incremental surge resistance ensures stable clamping under repetitive transients, while glass-passivated junction enhances reliability in harsh environments.
The device is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification - validated for automotive-grade surge immunity in engine control units and ADAS sensor power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12.8 V - maximum continuous reverse operating voltage before clamping begins; sets safe margin below protected circuit's max rating |
| VBR (Breakdown) | 14.3–15.8 V at 1 mA - precise avalanche initiation range ensuring predictable turn-on during transients |
| VC (Clamping) | 21.2 V at 28.3 A - peak voltage seen by downstream circuit during 600 W 10/1000 μs surge; critical for IC survival |
| PPPM | 600 W - peak pulse power handling with 0.01 % duty cycle; supports IEC 61000-4-5 Level 4 surge testing |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; requires ≥5.0 mm × 5.0 mm copper pads for full derating |
| TJ max. | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive applications including engine management, body control modules, and infotainment power inputs |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, matte tin-plated leads. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when voltage exceeds VBR |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against IEC 61000-4-5 combined wave surges up to 4 kV without degradation |
| AEC-Q101 qualified (HM3) | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per stress test requirements |
| Glass passivated junction | Improves long-term stability and leakage performance across -65 °C to +150 °C operating range |
| MSL Level 1 | Allows standard SMT reflow without moisture sensitivity concerns; peak temperature up to 260 °C supported |
| Halogen-free & RoHS | Complies with EU Directive 2011/65/EU and IPC-1752A; suitable for green manufacturing and export compliance |
Applications
| Automotive Power Input Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery rail in engine control unit exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between fuse and DC-DC converter input. Use Value: Limits transient voltage to ≤21.2 V, preventing damage to 36 V-rated buck controller and preserving system uptime. |
Use Scenario: 5 V supply line feeding CAN transceiver and analog sensor front-end in factory automation PLC. IC Role / Device Role / Timing Role: Standoff protection element upstream of LDO regulator and signal conditioning ICs. Use Value: Clamps ESD and switching noise to sub-22 V level, maintaining ADC reference stability and reducing firmware reset events. |
| Consumer Power Adapter Output | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side 15 V output of AC/DC adapter powering USB-C PD controller and display interface. IC Role / Device Role / Timing Role: Final-stage overvoltage guard before connector and USB-PD policy engine. Use Value: Absorbs 600 W surges without latch-up, avoiding false overvoltage shutdowns and enabling UL 62368-1 compliance. |
Use Scenario: 48 V phantom power line in VoIP gateway exposed to lightning-induced surges on Ethernet ports. IC Role / Device Role / Timing Role: Primary-level bidirectional-capable clamp (using CA variant); this unidirectional part used on DC bias rail. Use Value: Provides <10 ns response to fast-rising transients, limiting voltage overshoot to protect PoE controller ICs and isolation transformers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/5B | Same VWM/VBR/VC specs but SMA package (smaller footprint, higher RθJA = 150 °C/W) | Limited to lower-power consumer applications; not AEC-Q101 qualified | Select when board space is constrained and automotive qualification is unnecessary |
| 1.5SMC15AHE3_A/H | Same electrical specs, SMC package (higher power rating: 1500 W), AEC-Q101 qualified | Used where higher surge margin or longer lifetime under repeated transients is required | Choose for heavy-duty industrial motor drives or railway signaling where 1500 W rating adds safety margin |
Compared with P6SMB15AHM3/H, SMAJ15A-E3/5B offers smaller size but reduced thermal performance and no automotive qualification, while 1.5SMC15AHE3_A/H delivers double the pulse power in a larger SMC package - making P6SMB15AHM3/H the optimal balance of AEC-Q101 compliance, 600 W capability, and SMB footprint for space-constrained automotive modules.
Availability
P6SMB15AHM3/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom power supplies requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB15AHM3/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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The P6SMB Series targets cost-effective, high-surge-capability TVS protection in compact surface-mount packages - engineered specifically for automotive power rail hardening and industrial equipment surge resilience.
FAQ
What is the clamping voltage of P6SMB15AHM3/H at its rated peak pulse current?
The P6SMB15AHM3/H has a maximum clamping voltage (VC) of 21.2 V at 28.3 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuits during surge events - critical for ensuring compatibility with 24 V-rated ICs and controllers downstream of the device.
Is P6SMB15AHM3/H qualified for automotive applications?
Yes, P6SMB15AHM3/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix indicating halogen-free, RoHS-compliant construction and full automotive stress testing. It is approved for use in engine control units, body electronics, and ADAS subsystems where reliability under temperature cycling, vibration, and high-energy transients is mandatory.
What does the "H" in P6SMB15AHM3/H signify in the ordering code?
The "H" in P6SMB15AHM3/H denotes the packaging configuration: 7-inch diameter plastic tape and reel, with 750 units per reel. This format supports automated SMT placement and is standard for high-volume automotive and industrial production lines requiring consistent feeder compatibility and traceable lot control.
How does the thermal resistance of P6SMB15AHM3/H affect PCB layout?
P6SMB15AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, which assumes mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures during repetitive surges, designers must allocate adequate copper area and avoid narrow traces - insufficient copper increases RθJA and risks thermal runaway during sustained transient activity.
Can P6SMB15AHM3/H be used in bidirectional signal line protection?
No, P6SMB15AHM3/H is a unidirectional TVS diode, intended only for DC power rail protection where polarity is fixed. For bidirectional signal lines such as RS-485 or USB D+/D−, the CA-suffixed variant (e.g., P6SMB15CA) must be used - it provides symmetrical clamping in both directions and lacks cathode marking.
P6SMB15AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28.3A
- 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)
P6SMB15AHM3/H FAQ
1.How can I place an order for P6SMB15AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15AHM3/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 P6SMB15AHM3/H reliable?
The price and inventory of P6SMB15AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15AHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB15AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15AHM3/H?
P6SMB15AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15AHM3/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 P6SMB15AHM3/H?
For technical support, including P6SMB15AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15AHM3/H requirements.
6.How does Aetrix verify that P6SMB15AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB15AHM3/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 P6SMB15AHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB15AHM3/H?
All P6SMB15AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15AHM3/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 P6SMB15AHM3/H part is unused and in its original packaging.
Return procedure for P6SMB15AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15AHM3/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 …
