ROHM UDZ

UDZ variants from ROHM

UDZ Datasheet

Variants

Mfr

ROHM

Lifecycle

Active

UDZ Overview

What changes between part numbers, and what to check before you lock the BOM — Zener Diodes.

UDZ is a ROHM order-code family — not a single orderable MPN. This page lists 46 variants that share the same core device but differ in suffix fields (package, grade, reel/tube, electrical bin, etc.). Pick the exact full part number; substituting within the family without checking the datasheet often causes assembly or spec mismatches.

DIODE ZENER 10V 200MW UMD2 Other listed variants describe: DIODE ZENER 11V 200MW UMD2; DIODE ZENER 12V 200MW UMD2.

Suffix examples in this family: STE-1710B, STE-1711B, STE-1712B, STE-1713B, STE-1716B, STE-1718B, STE-1720B, STE-1722B. The characters after the base number usually encode package, temperature, or performance grade — compare the variant table column-by-column rather than assuming pin-compatible drops-in.

Example MPNs: UDZSTE-1710B, UDZSTE-1711B, UDZSTE-1712B, UDZSTE-1713B, UDZSTE-1716B, UDZSTE-1718B.

Key Features

Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
46 distinct suffix patternsExamples: STE-1710B, STE-1711B, STE-1712B, STE-1713B, STE-1716B (+41 more). Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Zener Diodes — design-in and field replacement
BOM scrub where only the base prefix is known but suffix is TBD
Second-source checks when the original MPN is constrained

Ordering Variants

Compare 46 UDZ part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part Number	Description	Manufacturer	Lifecycle	RoHS	Availability	Action
UDZSTE-1710B	DIODE ZENER 10V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1711B	DIODE ZENER 11V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1712B	DIODE ZENER 12V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1713B	DIODE ZENER 13V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1716B	DIODE ZENER 16V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1718B	DIODE ZENER 18V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1720B	DIODE ZENER 20V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1722B	DIODE ZENER 22V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1724B	DIODE ZENER 24V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1727B	DIODE ZENER 27V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-173.6B	Discrete Semiconductors--Diodes--Zener--Zener Diode Arrays	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-173.9B	DIODE ZENER 3.9V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1733B	DIODE ZENER 33V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-1736B	DIODE ZENER 36V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-174.3B	DIODE ZENER 4.3V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-174.7B	DIODE ZENER 4.7V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-175.1B	DIODE ZENER 5.1V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-175.6B	DIODE ZENER 5.6V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-176.2B	DIODE ZENER 6.2V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ
UDZSTE-176.8B	DIODE ZENER 6.8V 200MW UMD2	ROHM	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on UDZ map to package, grade, and reel options.

UDZ uses a shared prefix; characters after the prefix encode orderable options. Two lines with the same prefix are not drop-in replacements unless the differing columns match your need.

Suffixes seen here: STE-1710B, STE-1711B, STE-1712B, STE-1713B, STE-1716B, STE-1718B, STE-1720B, STE-1722B, STE-1724B, STE-1727B (+36 more).

Full MPN examples: UDZSTE-1710B, UDZSTE-1711B, UDZSTE-1712B, UDZSTE-1713B, UDZSTE-1716B.

Tip: photograph or copy the reel label — reel diameter, QTY per reel, and moisture sensitivity level (MSL) are often suffix-driven and won't show in the schematic.

How to Choose the Right UDZ Zener Diodes

📦

Match the footprint first

Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For UDZ, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.

🌡️

Temp grade letter matters

Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.

🔢

Copy the full MPN

Do not BOM only "UDZ" — include the full suffix (e.g. STE-1710B, STE-1711B, STE-1712B). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for UDZ product family

Identity

Base Model

UDZ

Manufacturer

ROHM

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source UDZ with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 46 ordering variants from ROHM. Our team supports active, EOL, and hard-to-find component sourcing.

Original manufacturer parts with traceability options
BOM upload and multi-line RFQ support
Package, grade, and compliance verification

Request Quote View ROHM Browse all base models →

Frequently Asked Questions

Common technical questions about the UDZ product family.

Is UDZ a single part I can order, or a family prefix?

UDZ is a base / family code from ROHM. You order a full MPN such as UDZSTE-1710B, UDZSTE-1711B, UDZSTE-1712B. The variant table lists 46 orderable lines with different suffixes.

What do the suffix letters on UDZ part numbers mean?

Listed suffix fragments include: STE-1710B, STE-1711B, STE-1712B, STE-1713B, STE-1716B, STE-1718B. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the ROHM datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of UDZ variants?

Lifecycle values in our listing: Active. Status is per MPN suffix — one variant can be Active while another is NRND. Check PCN for your exact suffix before multi-year commitments.

What should I send for an RFQ on UDZ?

Full manufacturer MPN (not just UDZ), quantity, needed date code, reel vs tube, and any compliance docs (CoC, RoHS, conflict minerals). If you only know the base prefix, include a photo of the existing label or reel.

Where is the UDZ datasheet?

Use the datasheet link in the page header. Cross-check electrical curves (SOA, saturation voltage, etc.) against your operating point — the table summarizes order codes, not every graph in the PDF.