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ZT028LDCTB30

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ZT028LDCTB30

ZT028LDCTB30

$72.27
  • Description：22MM ALARM LED 20 28 VDC 85-95
  • Series：-
  • Mfr：Mallory Sonalert Products Inc.
  • Package：Retail Package

SKU:515ee697b920 Category: Brand:

　　
  • Quantity
    • -
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    • 　　　
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Product Detailed Parameters

  • Description：22MM ALARM LED 20 28 VDC 85-95
  • Series：-
  • Mfr：Mallory Sonalert Products Inc.
  • Package：Retail Package
  • Driver Circuitry：Indicator, Internally Driven
  • Input Type：DC
  • Frequency：3.9kHz
  • Technology：-
  • Operating Mode：Single Tone
  • Duration：-
  • Sound Pressure Level (SPL)：85dB @ 20V, 60cm
  • Current - Supply：40mA
  • Port Location：Top
  • Operating Temperature：-30°C ~ 65°C
  • Approval Agency：cUL
  • Ratings：-
  • Ingress Protection：NEMA 3R, 4X, 12
  • Mounting Type：Panel Mount
  • Termination：Terminal Block
  • Height - Seated (Max)：2.234" (56.75mm)
  • Voltage - Rated：-
  • Voltage Range：20 ~ 28V
  • Size / Dimension：1.210" Dia (30.74mm)

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ZT028LDCTB30

How to buy
Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.
Payment Method
Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.
Delivery time
In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.
Freight calculation
Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.
Mode of Transportation
We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.
Return and Refund
Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.

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Buying Guide
Summary

Mallory Sonalert Products Inc. ZT028LDCTB30 is sourced in Alarms, Buzzers, and Sirens category when teams want clear constraints and a repeatable validation path. Key specs include Description (22MM ALARM LED 20 28 VDC 85-95), Packaging (Retail Package), Supply (20 ~ 28V), Temperature (-30°C ~ 65°C), and Mounting (Panel Mount).

Selection Notes
  • For ZT028LDCTB30, verify Approval Agency (cUL) and compare it against your reference design limits.
  • Make sure the mounting type (Panel Mount) matches how the part will be installed and inspected.
  • Ensure the supply current (40mA) is acceptable for battery life and thermal limits.
  • Check that the operating frequency (3.9kHz) aligns with your system clocking plan.
Alternates & Substitutions
  • In Alarms, Buzzers, and Sirens designs, define acceptance criteria up front so alternates can be qualified and repeated in production.
  • Confirm the real operating corners (supply 20 ~ 28V, temperature -30°C ~ 65°C) and avoid swaps that only work at typical conditions.
  • Begin with the constraints that are hardest to change later: mounting Panel Mount, packaging Retail Package.
  • Confirm compliance/qualification needs (for example RoHS/REACH or grade) before approving a second source for production.
FAQ

What should I compare when selecting an alternate for ZT028LDCTB30?
Compare footprint/pinout, key electrical limits, temperature range, and interface requirements, then validate under worst-case conditions.

Which packaging option is listed for ZT028LDCTB30?
Retail Package

Can you confirm the Port Location for ZT028LDCTB30?
Top

What Approval Agency is listed for ZT028LDCTB30?
cUL

Application Scenarios

Mallory Sonalert Products Inc. ZT028LDCTB30 in the Alarms, Buzzers, and Sirens category is typically selected when engineers need predictable, spec-driven behavior in a production design. Engineers generally focus on SNR, frequency response, EMI immunity, and mechanical acoustics so performance holds in real rooms and enclosures. In real deployments, they support features such as voice triggering, beamforming, or loud alarm signaling where clarity matters. In medical devices, audio and sensing paths are validated for predictable behavior in regulated workflows. Across smart home devices, audio and voice processing works near radios and switching supplies, so EMI immunity is crucial. Within portable equipment, efficient amplification improves battery life while keeping distortion low at peak loudness.

Compatibility Advice
  • With the real source, load, and wiring, check filtering, gain structure, and grounding so hum and coupling do not dominate in the final enclosure and cabling. This avoids one-off tuning in production.
  • In board-level integration, check filtering, gain structure, and grounding so hum and coupling do not dominate in the final enclosure and cabling. This keeps integration from depending on typical-only conditions.
Project Fit
  • Strongest fit when you can bench-verify Mallory Sonalert Products Inc. ZT028LDCTB30 for Alarms, Buzzers, and Sirens integration across temperature and supply corners, especially if you need repeatable noise and distortion performance that can be verified under the real load and enclosure acoustics.
ZT028LDCTB30ZT028LDCTB30
$72.27
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