My Inquiry
My Account
Vishay BZD27B75P-HE3_A18
- Part No.:
- BZD27B75P-HE3_A18
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B75P-HE3_A18.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,805
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZD27B75P-HE3_A18 from Vishay Semiconductors is a surface-mount, AEC-Q101-qualified Zener diode optimized for overvoltage protection and voltage regulation in automotive and industrial power rails. It delivers a nominal Zener voltage of 75 V with ±2 % tolerance at 10 mA test current, 100.2 V clamping voltage at 5 A peak surge current, and 150 W non-repetitive peak surge power rating per 10/1000 μs waveform.
For engineers reviewing the BZD27B75P-HE3_A18 datasheet, BZD27B75P-HE3_A18 pinout, BZD27B75P-HE3_A18 application, or BZD27B75P-HE3_A18 equivalent, key selection criteria include its DO-219AB (SMF) package, 1.5 %/°C temperature coefficient, 62 Ω dynamic impedance, 175 °C maximum junction temperature, and compliance with JESD201 Class 2 whisker testing and MSL Level 1 handling.
Technical Context
This unidirectional Zener diode operates in reverse-bias breakdown mode to clamp transient overvoltages and regulate stable DC reference voltages. Its silicon planar construction ensures low leakage current (<5 μA at 62 V), excellent long-term stability, and robust surge immunity up to 300 W for 100 μs pulses.
The device is rated for operation across -65 °C to +175 °C ambient, features a thermal resistance of 30 K/W junction-to-lead and 180 K/W junction-to-ambient (on 3 mm × 3 mm Cu pads), and supports wave and reflow soldering with peak temperature up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 73.5 V to 76.5 V at 10 mA - tight ±2 % tolerance enables precise voltage reference and clamping in safety-critical circuits |
| Clamping Voltage (VC) | 100.2 V at IRSM = 5 A - defines maximum voltage seen by protected downstream circuitry during transients |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs) - sustains automotive load-dump and ISO 7637-2 pulse 5a events without failure |
| Dynamic Impedance (ZZ) | 100 Ω max at 10 mA - low impedance maintains stable regulation under varying load currents |
| Temperature Coefficient (αVZ) | +0.08 %/°C to +0.13 %/°C - positive drift minimizes cold-temperature undershoot in wide-temperature designs |
| Junction Temperature (Tj) | 175 °C max - supports under-hood automotive placement and high-power density PCB layouts |
| Package | DO-219AB (SMF) - low-profile 2.7 mm × 1.9 mm surface-mount outline compatible with automated assembly and space-constrained modules |
Pinout & Package
DO-219AB (SMF) package: 2-terminal, cathode-marked surface-mount device with 2.7 mm × 1.9 mm footprint, 0.85 mm height, and 1.08 mm lead pitch. Compliant with MSL Level 1 and JESD201 Class 2 whisker requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to ground or lower-potential rail during normal operation; carries forward current up to 0.2 A (VF ≤ 1.2 V) |
| Cathode | Zener breakdown terminal / high-side connection | Connected to protected line; conducts reverse current above 75 V to clamp overvoltage and divert surge energy |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS power supplies |
| Surge current specification | Rated for 5 A peak reverse current (10/1000 μs) with 100.2 V clamping - enables direct use in ISO 16750-2 load-dump protection |
| Low-profile SMF package | 0.85 mm max height and 2.7 mm × 1.9 mm footprint - fits beneath connectors and in compact ECU modules |
| MSL Level 1 handling | No floor life limitation and no bake requirement before reflow - simplifies SMT line logistics and reduces manufacturing cost |
| ESD robustness | HBM > 8 kV and MM > 800 V - withstands handling and board-level ESD events without parameter shift or failure |
Applications
| Automotive Load-Dump Protection | Industrial DC Power Rail Clamping |
|---|---|
Use Scenario: Protecting 24 V vehicle electronics (e.g., infotainment head units, telematics modules) against ISO 7637-2 Pulse 5a load-dump transients up to 120 V. IC Role / Device Role / Timing Role: Unidirectional Zener clamping diode placed between battery rail and ground, conducting only during overvoltage events. Use Value: Limits peak voltage to 100.2 V at 5 A surge, preventing damage to downstream 36 V-rated DC-DC converters and microcontrollers. | Use Scenario: Safeguarding programmable logic controllers (PLCs) and motor drives operating from 48 V industrial power supplies exposed to switching surges. IC Role / Device Role / Timing Role: Standoff voltage regulator and transient suppressor on main DC bus, activated within nanoseconds of overvoltage onset. Use Value: Provides 150 W surge power dissipation capability and 175 °C junction rating for reliable operation in hot control cabinet environments. |
| High-Voltage Reference Generation | Overvoltage Detection Circuit Input |
Use Scenario: Generating a stable 75 V reference for analog monitoring circuits in telecom power shelves and server PSUs. IC Role / Device Role / Timing Role: Precision Zener voltage source with ±2 % tolerance and +0.08 %/°C TC, used in feedback divider networks. Use Value: Delivers <5 μA leakage at 62 V and 100 Ω dynamic impedance, minimizing error contribution in high-impedance reference paths. | Use Scenario: Conditioning input to voltage supervisor ICs (e.g., TLV803, MAX6816) monitoring 72 V battery systems in material handling equipment. IC Role / Device Role / Timing Role: Pre-regulator and surge limiter feeding the detection threshold node of a reset controller. Use Value: Ensures input stays below 100.2 V during transients, preventing false resets and enabling clean, deterministic fault response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A-E3/52 | TVS diode (not Zener); 75 V standoff, 100 V clamping at 10 A; higher surge rating (600 W), but looser voltage tolerance (±5 %) | Designed for fast transient suppression (e.g., ESD, lightning), not precision regulation | Select when primary need is high-energy transient absorption rather than stable DC reference |
| BZX84-C75-HE3-08 | SOT-23 Zener; 75 V nominal, ±5 % tolerance, 300 mW power rating, 350 Ω ZZ; not AEC-Q101 qualified | Lower power, smaller package - suitable for signal-level protection or biasing, not power rail clamping | Select only for low-current (<10 mA), non-automotive applications where size and cost outweigh surge performance |
Compared with SMBJ75A-E3/52 and BZX84-C75-HE3-08, the BZD27B75P-HE3_A18 uniquely combines AEC-Q101 qualification, ±2 % Zener tolerance, 150 W surge rating, and DO-219AB thermal performance-making it the only choice for automotive-grade 75 V regulation and clamping where both precision and ruggedness are required.
Availability
BZD27B75P-HE3_A18 is available at Aetrix Electronics and suitable for automotive electronics, industrial power supplies, and telecom infrastructure requiring stable component supply, AEC-Q101 compliance, and high-surge reliability.
Supply support for BZD27B75P-HE3_A18 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 Semiconductors is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The BZD27B Series belongs to Vishay's eSMP® Zener platform, engineered specifically for high-power, high-temperature, and AEC-Q101-compliant overvoltage protection in demanding automotive and industrial environments.
FAQ
What is the Zener voltage tolerance of BZD27B75P-HE3_A18?
The BZD27B75P-HE3_A18 has a Zener voltage tolerance of ±2 %, specified as 73.5 V minimum to 76.5 V maximum at 10 mA test current (IZT). This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of Vishay document 85921 Rev. 2.1 and enables accurate voltage reference design in safety-critical applications.
Is BZD27B75P-HE3_A18 qualified for automotive use?
Yes, BZD27B75P-HE3_A18 is AEC-Q101 qualified, as indicated by the "-HE3" suffix in its ordering code and explicitly stated in the FEATURES section of the Vishay datasheet. It meets JESD201 Class 2 whisker testing, MSL Level 1, and ESD requirements (>8 kV HBM), making it suitable for under-hood and chassis-mounted automotive electronics.
What is the clamping voltage of BZD27B75P-HE3_A18 at 5 A surge current?
The clamping voltage (VC) of BZD27B75P-HE3_A18 is 100.2 V at IRSM = 5 A for a 10/1000 μs waveform, per the second Electrical Characteristics table on page 3 of Vishay document 85921. This value defines the maximum voltage imposed on protected circuitry during standardized surge events.
Which package does BZD27B75P-HE3_A18 use, and what are its key dimensions?
BZD27B75P-HE3_A18 uses the DO-219AB (SMF) package: 2.7 mm × 1.9 mm body size, 0.85 mm maximum height, and 1.08 mm lead pitch. These dimensions are verified in the PACKAGE DIMENSIONS drawing on page 5 of the Vishay datasheet and support high-density automated assembly.
Does BZD27B75P-HE3_A18 have a specified junction-to-ambient thermal resistance?
Yes, BZD27B75P-HE3_A18 has a junction-to-ambient thermal resistance (RthJA) of 180 K/W when mounted on an epoxy-glass PCB with 3 mm × 3 mm copper pads ≥40 μm thick, as listed in the Absolute Maximum Ratings table on page 1 of the Vishay datasheet. This value is critical for thermal design of high-duty-cycle protection circuits.
BZD27B75P-HE3_A18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay
- Package/Case:
- DO-219AB
- Series:
- BZD27B, eSMP®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 62V (Max)
- Voltage - Breakdown (Min):
- 73.5V
- Voltage - Clamping (Max) @ Ipp:
- 100.2V
- Current - Peak Pulse (10/1000µs):
- 1.5A
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-219AB (SMF)
BZD27B75P-HE3_A18 FAQ
1.How can I place an order for BZD27B75P-HE3_A18 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B75P-HE3_A18 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 BZD27B75P-HE3_A18 reliable?
The price and inventory of BZD27B75P-HE3_A18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27B75P-HE3_A18 is usually 5 days.
3.What payment methods are accepted for BZD27B75P-HE3_A18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B75P-HE3_A18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B75P-HE3_A18?
BZD27B75P-HE3_A18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B75P-HE3_A18 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 BZD27B75P-HE3_A18?
For technical support, including BZD27B75P-HE3_A18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B75P-HE3_A18 requirements.
6.How does Aetrix verify that BZD27B75P-HE3_A18 is sourced from the original manufacturer or authorized distributors?
All BZD27B75P-HE3_A18 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 BZD27B75P-HE3_A18 meets industry standards.
7.What is the process for return or replacement of BZD27B75P-HE3_A18?
All BZD27B75P-HE3_A18 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B75P-HE3_A18, 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 BZD27B75P-HE3_A18 part is unused and in its original packaging.
Return procedure for BZD27B75P-HE3_A18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B75P-HE3_A18 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 …
