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Vishay General Semiconductor - Diodes Division P6SMB27AHM3_A/H
- Part No.:
- P6SMB27AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB27AHM3_A/H.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,857
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Product details
Overview
P6SMB27AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 27 V breakdown voltage (VBR = 25.7–28.4 V at 1 mA), 37.5 V maximum clamping voltage (VC) at 16.0 A peak pulse current, and 600 W peak pulse power with 10/1000 µs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power supplies.
For engineers reviewing the P6SMB27AHM3_A/H datasheet, P6SMB27AHM3_A/H pinout, P6SMB27AHM3_A/H application, or P6SMB27AHM3_A/H equivalent, this device offers AEC-Q101 qualification, halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and verified clamping performance under repetitive surge conditions up to 0.01% duty cycle.
Technical Context
The P6SMB27AHM3_A/H operates as a unidirectional avalanche diode with glass-passivated junction, enabling fast response time (<1 ns) and low incremental surge resistance. Its 27 V nominal breakdown voltage is specified at 1 mA test current, with 23.1 V stand-off voltage (VWM) and ≤1.0 µA reverse leakage at VWM.
Thermal design relies on RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting operation from –65 °C to +150 °C junction temperature. The device meets J-STD-020 reflow profile (peak 260 °C) and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 25.7 V / 28.4 V at IT = 1 mA - defines reliable avalanche initiation threshold for overvoltage protection |
| VWM | 23.1 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 37.5 V at 16.0 A - clamped voltage during 10/1000 µs transient, limiting stress on downstream components |
| PPPM | 600 W - peak pulse power handling capability under standardized surge waveform |
| IPPM | 16.0 A - maximum non-repetitive peak pulse current supported at VC = 37.5 V |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 flammability rating, and polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit; conducts during forward-biased surges (e.g., reverse polarity events) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates controlled breakdown when reverse voltage exceeds VBR, shunting surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for modern electronics manufacturing and end-of-life processing |
| 600 W peak pulse power | Withstands high-energy transients common in 12 V/24 V vehicle power systems and industrial motor drives |
| MSL Level 1 | Unlimited floor life at ≤30 °C/60% RH, compatible with standard SMT reflow without baking |
| Glass-passivated junction | Enhances long-term stability and reduces parameter drift under thermal and electrical stress |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground, clamping surges above 27 V while remaining inert below 23.1 V. Use Value: Limits voltage seen by downstream LDOs and microcontrollers to ≤37.5 V during 100 A/10 ms load dump events, preventing latch-up or damage. | Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential signal pair (e.g., 4–20 mA loop) to suppress ESD and cable-induced spikes. Use Value: Maintains signal integrity with <1.0 µA leakage at 23.1 V, ensuring minimal offset error in precision current-loop measurements. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeding Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier and controller ICs against line surges and lightning-induced transients. IC Role / Device Role / Timing Role: Mounted across bulk capacitor input, absorbing 600 W pulses without degradation over >100,000 surge cycles. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (2 kV line-earth) without derating or parallel staging. | Use Scenario: Protecting PoE (Power over Ethernet) midspan injectors feeding 48 V DC to remote switches and IP cameras. IC Role / Device Role / Timing Role: Placed on DC feed line prior to DC-DC converter, clamping induced transients from cable coupling or hot-plug events. Use Value: Withstands repeated 10/1000 µs surges up to 16 A while maintaining VC ≤37.5 V, preserving IEEE 802.3af/at compatibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ27A-E3/5B | Same VBR range (25.7–28.4 V), but 400 W PPPM; SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for automotive load dump per ISO 7637-2 Pulse 5a | Select only for space-constrained consumer designs where surge energy remains <400 W |
| 1.5SMC27AHE3_A | Same 600 W rating and VBR, but SMC (DO-214AB) package (larger, RθJA = 75 °C/W); AEC-Q101 qualified | Better thermal performance in high-ambient environments; requires larger PCB area | Choose when board layout allows SMC and junction temperature margin is critical (e.g., under-hood junction boxes) |
Compared with SMAJ27A-E3/5B and 1.5SMC27AHE3_A, the P6SMB27AHM3_A/H delivers optimal balance of 600 W surge capacity, SMB footprint compactness, AEC-Q101 qualification, and halogen-free compliance-making it preferred for automotive body control modules and industrial I/O cards where space, reliability, and regulatory alignment are jointly constrained.
Availability
P6SMB27AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power feeding circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB27AHM3_A/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series is designed for robust transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where high pulse power, AEC-Q101 validation, and consistent clamping behavior are mandatory.
FAQ
What is the breakdown voltage tolerance for P6SMB27AHM3_A/H?
The P6SMB27AHM3_A/H has a guaranteed breakdown voltage range of 25.7 V to 28.4 V at 1 mA test current, per Vishay Document Number 88370. This ±5% tolerance ensures predictable clamping onset across production lots and temperature extremes, critical for coordinating with downstream overvoltage protection thresholds in automotive ECUs and industrial controllers.
Is P6SMB27AHM3_A/H suitable for bidirectional transient protection?
No, P6SMB27AHM3_A/H is a unidirectional TVS diode, identified by its "A" suffix and cathode band marking. For bidirectional protection, Vishay specifies part numbers ending in "CA" (e.g., P6SMB27CA). Using P6SMB27AHM3_A/H in bidirectional applications would allow forward conduction during negative transients, potentially damaging the protected circuit.
Does P6SMB27AHM3_A/H require derating at elevated ambient temperatures?
Yes, P6SMB27AHM3_A/H must be derated above 25 °C ambient per Figure 2 in Vishay Document 88370. At 85 °C ambient, its 600 W peak pulse power rating drops to approximately 420 W, and its 16.0 A IPPM decreases proportionally. Designers must verify clamping voltage remains within safe limits using the published derating curves for thermal and surge performance.
What is the maximum reverse leakage current for P6SMB27AHM3_A/H at its stand-off voltage?
The maximum reverse leakage current (ID) for P6SMB27AHM3_A/H is 1.0 µA at VWM = 23.1 V and TA = 25 °C, as specified in the Electrical Characteristics table. This ultra-low leakage preserves efficiency in always-on automotive modules and avoids loading sensitive analog sensor references.
How does the halogen-free status of P6SMB27AHM3_A/H impact its assembly process?
The halogen-free construction of P6SMB27AHM3_A/H complies with IPC-4101D and JEDEC J-STD-020, allowing standard lead-free reflow profiles (peak 260 °C, MSL Level 1) without special flux or post-process cleaning. Its matte tin plating meets J-STD-002 solderability requirements, ensuring reliable joint formation in automated SMT lines without voiding or dewetting.
P6SMB27AHM3_A/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:
- Obsolete
- 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_A/H FAQ
1.How can I place an order for P6SMB27AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB27AHM3_A/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_A/H reliable?
The price and inventory of P6SMB27AHM3_A/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_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB27AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB27AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB27AHM3_A/H?
P6SMB27AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB27AHM3_A/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_A/H?
For technical support, including P6SMB27AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB27AHM3_A/H requirements.
6.How does Aetrix verify that P6SMB27AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB27AHM3_A/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_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB27AHM3_A/H?
All P6SMB27AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB27AHM3_A/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_A/H part is unused and in its original packaging.
Return procedure for P6SMB27AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB27AHM3_A/H Tags
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