My Inquiry
My Account
Vishay BZD27B30P-HE3_A08
- Part No.:
- BZD27B30P-HE3_A08
- Manufacturer:
- Vishay
- Category:
- TVS Diodes
- Package:
- DO-219AB
- Datasheet:
-
BZD27B30P-HE3_A08.pdf
- Description:
- ZENER DIODE SMF DO219AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,517
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZD27B30P-HE3_A08 from Vishay Semiconductors is a surface-mount silicon planar Zener diode rated for 30 V nominal Zener voltage (29.4–30.6 V), 25 mA test current, and 150 W non-repetitive peak surge power (10/1000 μs waveform), designed for overvoltage protection in automotive power rails and industrial DC supply monitoring circuits.
For engineers reviewing the BZD27B30P-HE3_A08 datasheet, BZD27B30P-HE3_A08 pinout, BZD27B30P-HE3_A08 application, or BZD27B30P-HE3_A08 equivalent, this AEC-Q101 qualified device offers ±2 % VZ tolerance, low dynamic resistance (22 Ω), and clamping voltage of 40.4 V at 5 A, supporting robust transient suppression in space-constrained PCB layouts.
Technical Context
This unidirectional Zener diode operates as a precision voltage reference and transient voltage suppressor in parallel configuration, with thermal resistance of 30 K/W junction-to-lead and 180 K/W junction-to-ambient (on 3 mm × 3 mm Cu pads). Its design supports both regulation and clamping modes under steady-state and surge conditions.
It features AEC-Q101 qualification, MSL level 1 moisture sensitivity, JESD 201 Class 2 whisker resistance, and ESD ratings >8 kV HBM / >800 V MM - confirming suitability for automotive electronics where reliability under thermal cycling and electrostatic stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 29.4 V min. to 30.6 V max. at 25 mA - ensures tight voltage reference stability for 30 V rail supervision |
| Clamping Voltage (VC) | 40.4 V at 5 A surge - defines maximum voltage seen by protected circuit during 10/1000 μs transients |
| Peak Surge Power (PRSM) | 150 W (10/1000 μs) - enables handling of ISO 7637-2 Pulse 1/2a/5a-level automotive transients |
| Dynamic Resistance (ZZ) | 22 Ω typical at 25 mA - minimizes voltage deviation under load variation in regulation applications |
| Temperature Coefficient (αVZ) | +0.06 to +0.11 %/°C - indicates positive drift, requiring thermal derating above 25 °C for precision references |
| Junction Temperature (Tj) | 175 °C max. - supports operation in under-hood automotive environments and high-power industrial enclosures |
| Package | DO-219AB (SOD-123W-compatible) - 2.7 × 1.9 × 0.85 mm low-profile SMT footprint for dense board layouts |
Pinout & Package
DO-219AB (SMF) package: cathode-marked, single-diode unidirectional configuration; 2-terminal surface-mount device with anode and cathode leads aligned along body length. Dimensions: 2.7 mm × 1.9 mm × 0.85 mm; recommended footprint: 1.3 mm × 1.3 mm pad with 1.4 mm spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Current entry terminal in forward bias; connected to lower-potential node in Zener mode | Must be tied to ground or return path when used for clamping; determines polarity of protection |
| Cathode (K) | Current exit terminal in forward bias; connected to higher-potential node in Zener mode | Connected to protected line (e.g., 30 V rail); carries surge current into ground during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use per stress test requirements including temperature cycling, HTRB, and ESD - eliminates need for additional qualification effort |
| ±2 % Zener voltage tolerance | Enables accurate 30 V threshold detection without external trimming, reducing BOM count in safety-critical monitoring circuits |
| 150 W peak surge rating (10/1000 μs) | Meets ISO 7637-2 Pulse 5a requirements for 12 V/24 V vehicle systems - protects downstream CAN/LIN controllers and sensors |
| MSL Level 1, 260 °C reflow compatible | Allows single-pass lead-free reflow assembly without baking or special handling - simplifies manufacturing flow |
| Low leakage current (≤5 μA at 24 V) | Minimizes standby power loss in always-on automotive modules such as telematics and body control units |
Applications
| Automotive Power Rail Protection | Industrial DC Supply Monitoring |
|---|---|
Use Scenario: Suppressing load dump transients on 24 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Parallel-connected voltage clamp absorbing up to 150 W surge energy within microseconds. Use Value: Limits voltage excursion to ≤40.4 V during ISO 7637-2 Pulse 5a, preventing damage to 3.3 V/5 V LDOs and microcontrollers. |
Use Scenario: Providing overvoltage cutoff signal for PLC I/O modules powered from 30 V industrial supplies. IC Role / Device Role / Timing Role: Zener reference feeding comparator input to trigger shutdown when supply exceeds 30.6 V. Use Value: Enables precise 30 V threshold detection with ±2 % tolerance, eliminating calibration steps in field-deployed equipment. |
| Automotive Sensor Interface Protection | Telecom DC-DC Converter Feedback Stability |
Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors exposed to alternator ripple and ignition noise. IC Role / Device Role / Timing Role: Low-capacitance (<3 pF at 0 V) shunt element limiting reverse voltage across sensor bridge. Use Value: Maintains signal integrity with <0.1 % error at 1 kHz while clamping fast transients up to 5 A peak. |
Use Scenario: Stabilizing feedback node of isolated 30 V output DC-DC converters in base station power supplies. IC Role / Device Role / Timing Role: Precision Zener providing stable 30 V reference for optocoupler-based regulation loop. Use Value: Delivers <22 Ω dynamic impedance and +0.06 %/°C TC, minimizing output voltage drift across -40 to +125 °C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A | TVS diode, 30 V standoff, 600 W peak power, bidirectional | Designed for faster transient response (sub-nanosecond), but higher clamping voltage (48.4 V) | Choose for higher-energy surges where clamping voltage margin allows; not suitable as precision reference |
| BZX84-C30LT1G | SOT-23 Zener, 30 V, ±5 % tolerance, 350 mW PD, no AEC-Q101 | Limited to low-power regulation; lacks surge rating and automotive qualification | Select only for cost-sensitive consumer-grade 30 V reference where surge immunity is not required |
Compared with SMBJ30A and BZX84-C30LT1G, BZD27B30P-HE3_A08 uniquely balances AEC-Q101 compliance, ±2 % VZ tolerance, and 150 W surge capability in a low-profile DO-219AB package - making it optimal for automotive and industrial applications demanding both precision and ruggedness.
Availability
BZD27B30P-HE3_A08 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial DC supply monitoring, and telecom power converter feedback circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for BZD27B30P-HE3_A08 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, and optoelectronics for automotive, industrial, and computing markets.
The BZD27B Series targets high-surge, high-stability Zener applications in harsh environments - engineered specifically for AEC-Q101-compliant automotive subsystems and industrial power interfaces needing precision voltage clamping.
FAQ
What is the Zener voltage tolerance of BZD27B30P-HE3_A08?
The BZD27B30P-HE3_A08 has a Zener voltage range of 29.4 V to 30.6 V at 25 mA test current, corresponding to ±2 % tolerance about the nominal 30 V value. This tight tolerance is specified per the BZD27B Series datasheet Rev. 2.1 and enables accurate voltage thresholding without external calibration. The BZD27B30P-HE3_A08 achieves this via process-controlled silicon planar junction technology.
Is BZD27B30P-HE3_A08 qualified for automotive applications?
Yes, BZD27B30P-HE3_A08 is AEC-Q101 qualified, as confirmed by its "-HE3" suffix and documentation in Vishay's BZD27B Series datasheet. It passes stress tests including temperature cycling, high-temperature reverse bias, and ESD (>8 kV HBM), making it suitable for under-hood and chassis-mounted automotive electronics. The BZD27B30P-HE3_A08 also meets MSL Level 1 and JESD 201 Class 2 whisker requirements.
What is the maximum clamping voltage of BZD27B30P-HE3_A08 during surge events?
The BZD27B30P-HE3_A08 exhibits a maximum clamping voltage (VC) of 40.4 V at 5 A peak current under 10/1000 μs waveform conditions. This value is measured per IEC 60-1 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The BZD27B30P-HE3_A08 maintains this performance across its full operating temperature range (-65 °C to +175 °C).
Can BZD27B30P-HE3_A08 be used in place of a standard 30 V Zener for voltage reference?
Yes, BZD27B30P-HE3_A08 can serve as a precision voltage reference due to its ±2 % VZ tolerance, low dynamic resistance (22 Ω), and stable temperature coefficient (+0.06 to +0.11 %/°C). Unlike general-purpose Zeners, the BZD27B30P-HE3_A08 is characterized for both regulation and surge clamping, allowing dual-use in feedback networks and protection paths - provided thermal design accommodates its 2300 mW total power dissipation at lead temperature.
What package does BZD27B30P-HE3_A08 use, and is it RoHS-compliant?
BZD27B30P-HE3_A08 uses the DO-219AB (SMF) package - a low-profile surface-mount outline measuring 2.7 mm × 1.9 mm × 0.85 mm, compatible with SOD-123W footprints. It is RoHS-compliant per its "-HE3" designation and meets UL 94 V-0 flammability rating. The BZD27B30P-HE3_A08 is supplied on 8 mm tape, 3000 units per 7″ reel, with MSL Level 1 handling per J-STD-020.
BZD27B30P-HE3_A08 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):
- 24V (Max)
- Voltage - Breakdown (Min):
- 29.4V
- Voltage - Clamping (Max) @ Ipp:
- 40.4V
- Current - Peak Pulse (10/1000µs):
- 3.6A
- 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)
BZD27B30P-HE3_A08 FAQ
1.How can I place an order for BZD27B30P-HE3_A08 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZD27B30P-HE3_A08 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 BZD27B30P-HE3_A08 reliable?
The price and inventory of BZD27B30P-HE3_A08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZD27B30P-HE3_A08 is usually 5 days.
3.What payment methods are accepted for BZD27B30P-HE3_A08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZD27B30P-HE3_A08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZD27B30P-HE3_A08?
BZD27B30P-HE3_A08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZD27B30P-HE3_A08 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 BZD27B30P-HE3_A08?
For technical support, including BZD27B30P-HE3_A08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZD27B30P-HE3_A08 requirements.
6.How does Aetrix verify that BZD27B30P-HE3_A08 is sourced from the original manufacturer or authorized distributors?
All BZD27B30P-HE3_A08 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 BZD27B30P-HE3_A08 meets industry standards.
7.What is the process for return or replacement of BZD27B30P-HE3_A08?
All BZD27B30P-HE3_A08 units undergo pre-shipment inspection (PSI). If there is an issue with BZD27B30P-HE3_A08, 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 BZD27B30P-HE3_A08 part is unused and in its original packaging.
Return procedure for BZD27B30P-HE3_A08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZD27B30P-HE3_A08 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 …
